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tilcdc flip_worker Kernel Panic on SDK2.0



Hello,

I have an issue on SDK2.0 where my QT application crashes with the following output

[ 1115.934859] ------------[ cut here ]------------                                                                                                                     
[ 1115.939620] WARNING: CPU: 0 PID: 973 at mm/page_alloc.c:6520 free_contig_range+0xa0/0xb8()                                                                             
[ 1115.949102] 375 pages are still in use!                                                                                                                                
[ 1115.953019] Modules linked in: iio_trig_sysfs usb_f_ecm g_ether usb_f_rndis libcomposite u_ether ipv6 cryptodev(O) musb_dsps musb_hdrc usbcore udc_core joydev snd_socn
[ 1115.989957] CPU: 0 PID: 973 Comm: kworker/u2:2 Tainted: G        W  O    4.1.6-g52c4aa7 #9                                                                             
[ 1115.998930] Hardware name: Generic AM33XX (Flattened Device Tree)                                                                                                      
[ 1116.005306] Workqueue: tilcdc flip_worker                                                                                                                              
[ 1116.009363] Backtrace:                                                                                                                                                 
[ 1116.011885] [<c0012b10>] (dump_backtrace) from [<c0012d30>] (show_stack+0x18/0x1c)                                                                                     
[ 1116.020368]  r7:c0790168 r6:00001978 r5:00000009 r4:00000000                                                                                                           
[ 1116.026292] [<c0012d18>] (show_stack) from [<c061b0a8>] (dump_stack+0x20/0x28)                                                                                         
[ 1116.033586] [<c061b088>] (dump_stack) from [<c0037d6c>] (warn_slowpath_common+0x7c/0xb4)                                                                               
[ 1116.042475] [<c0037cf0>] (warn_slowpath_common) from [<c0037ddc>] (warn_slowpath_fmt+0x38/0x40)                                                                        
[ 1116.051359]  r8:c0876580 r7:00000177 r6:c08cf5c4 r5:0008ec77 r4:c0790854                                                                                               
[ 1116.058601] [<c0037da8>] (warn_slowpath_fmt) from [<c00c5d54>] (free_contig_range+0xa0/0xb8)                                                                           
[ 1116.067742]  r3:00000177 r2:c0790854                                                                                                                                   
[ 1116.071528]  r4:00000000                                                                                                                                               
[ 1116.074137] [<c00c5cb4>] (free_contig_range) from [<c0106380>] (cma_release+0x94/0xbc)                                                                                 
[ 1116.082816]  r9:ce4d3000 r8:ceb00000 r7:cd8f1e10 r6:00000001 r5:c08d03fc r4:0008eb00                                                                                   
[ 1116.090860] [<c01062ec>] (cma_release) from [<c04067d8>] (dma_release_from_contiguous+0x34/0x3c)                                                                       
[ 1116.100255]  r5:00210c00 r4:00177000                                                                                                                                   
[ 1116.103956] [<c04067a4>] (dma_release_from_contiguous) from [<c001af14>] (__arm_dma_free+0x14c/0x1f8)                                                                  
[ 1116.113806] [<c001adc8>] (__arm_dma_free) from [<c001b010>] (arm_dma_free+0x24/0x2c)                                                                                   
[ 1116.121720]  r10:cde01b14 r9:cde01a80 r8:cd9d8834 r7:cde01b08 r6:00000001 r5:c001afec                                                                                  
[ 1116.130050]  r4:ca0c8e00                                                                                                                                               
[ 1116.132650] [<c001afec>] (arm_dma_free) from [<c03e994c>] (drm_gem_cma_free_object+0x5c/0x98)                                                                          
[ 1116.141949] [<c03e98f0>] (drm_gem_cma_free_object) from [<c03cd768>] (drm_gem_object_free+0x30/0x38)                                                                   
[ 1116.151258]  r5:ffffffff r4:ca0c8e00                                                                                                                                   
[ 1116.155370] [<c03cd738>] (drm_gem_object_free) from [<c03c8e9c>] (drm_fb_cma_destroy+0xa8/0xb4)                                                                        
[ 1116.164145] [<c03c8df4>] (drm_fb_cma_destroy) from [<c03d7cfc>] (drm_framebuffer_free+0x54/0x58)                                                                       
[ 1116.173676]  r10:cd9d9358 r9:cd9d9370 r8:cd85e000 r7:cde01a80 r6:cd9d8800 r5:cd9d895c                                                                                  
[ 1116.181731]  r4:cde01a84 r3:c03c8df4                                                                                                                                   
[ 1116.185808] [<c03d7ca8>] (drm_framebuffer_free) from [<c03d7d4c>] (drm_framebuffer_unreference+0x4c/0x80)                                                              
[ 1116.195961]  r7:cd9d9350 r6:cd85feb8 r5:cde01a80 r4:cde01a80                                                                                                           
[ 1116.201768] [<c03d7d00>] (drm_framebuffer_unreference) from [<c03f53f4>] (unref_worker+0x28/0x34)                                                                      
[ 1116.211229]  r4:cd9d88f8                                                                                                                                               
[ 1116.213827] [<c03f53cc>] (unref_worker) from [<c03e6fac>] (flip_worker+0xbc/0xe0)                                                                                      
[ 1116.221898]  r5:cc7229c0 r4:cd85feb8                                                                                                                                   
[ 1116.225664] [<c03e6ef0>] (flip_worker) from [<c004c43c>] (process_one_work+0x12c/0x374)                                                                                
[ 1116.233735]  r10:ca0c8800 r9:00000000 r8:cd803a00 r7:cd94cf00 r6:00000000 r5:cd9d9358                                                                                  
[ 1116.242226]  r4:ca0c8800                                                                                                                                               
[ 1116.246021] [<c004c310>] (process_one_work) from [<c004c6e4>] (worker_thread+0x60/0x5cc)                                                                               
[ 1116.255186]  r10:ca0c8800 r9:00000000 r8:cd803a00 r7:cd803a10 r6:00000088 r5:ca0c8818                                                                                  
[ 1116.263777]  r4:cd803a00                                                                                                                                               
[ 1116.267118] [<c004c684>] (worker_thread) from [<c0051a9c>] (kthread+0xd4/0xf0)                                                                                         
[ 1116.274615]  r10:00000000 r9:00000000 r8:00000000 r7:c004c684 r6:ca0c8800 r5:cc711900                                                                                  
[ 1116.282514]  r4:00000000                                                                                                                                               
[ 1116.285265] [<c00519c8>] (kthread) from [<c000f928>] (ret_from_fork+0x14/0x2c)                                                                                         
[ 1116.292519]  r7:00000000 r6:00000000 r5:c00519c8 r4:cc711900                                                                                                           
[ 1116.298486] ---[ end trace 7ba1fffa9d691d00 ]---

Any idea what could be causing this? The output of gfx_check.sh is 

WSEGL settings                                                                                                                                                            
[default]                                                                                                                                                                 
WindowSystem=libpvrDRMWSEGL_FRONT.so                                                                                                                                      
                                                                                                                                                                          
#WindowSystem=libpvrDRMWSEGL.so                                                                                                                                           
#WindowSystem=libpvrQWSWSEGL.so                                                                                                                                           
#WindowSystem=libpvrPVR2D_FRONTWSEGL.so                                                                                                                                   
DisableHWTQTextureUpload=1                                                                                                                                                
------                                                                                                                                                                    
ARM CPU information                                                                                                                                                       
processor       : 0                                                                                                                                                       
model name      : ARMv7 Processor rev 2 (v7l)                                                                                                                             
BogoMIPS        : 298.29                                                                                                                                                  
Features        : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32                                                                                              
CPU implementer : 0x41                                                                                                                                                    
CPU architecture: 7                                                                                                                                                       
CPU variant     : 0x3                                                                                                                                                     
CPU part        : 0xc08                                                                                                                                                   
CPU revision    : 2                                                                                                                                                       
                                                                                                                                                                          
Hardware        : Generic AM33XX (Flattened Device Tree)                                                                                                                  
Revision        : 0000                                                                                                                                                    
Serial          : 0000000000000000                                                                                                                                        
------                                                                                                                                                                    
SGX driver information                                                                                                                                                    
Version SGX_DDK_Linux_CustomerTI sgxddk 19 1.9@2253347 (release) omap335x_linux                                                                                           
System Version String: SGX revision = 125                                                                                                                                 
------                                                                                                                                                                    
Framebuffer settings                                                                                                                                                      
                                                                                                                                                                          
mode "480x800"                                                                                                                                                            
    geometry 480 800 480 800 16                                                                                                                                           
    timings 0 0 0 0 0 0 0                                                                                                                                                 
    accel true                                                                                                                                                            
    rgba 5/10,5/5,5/0,1/15                                                                                                                                                
endmode                                                                                                                                                                   
                                                                                                                                                                          
Frame buffer device information:                                                                                                                                          
    Name        :                                                                                                                                                         
    Address     : 0x8e900000                                                                                                                                              
    Size        : 1536000                                                                                                                                                 
    Type        : PACKED PIXELS                                                                                                                                           
    Visual      : TRUECOLOR                                                                                                                                               
    XPanStep    : 1                                                                                                                                                       
    YPanStep    : 1                                                                                                                                                       
    YWrapStep   : 0                                                                                                                                                       
    LineLength  : 1920                                                                                                                                                    
    Accelerator : No                                                                                                                                                      
------                                                                                                                                                                    
Rotation settings                                                                                                                                                         
0                                                                                                                                                                         
------                                                                                                                                                                    
Kernel Module information                                                                                                                                                 
Module                  Size  Used by                                                                                                                                     
iio_trig_sysfs          3341  2                                                                                                                                           
usb_f_ecm               8211  1                                                                                                                                           
g_ether                 4803  0                                                                                                                                           
usb_f_rndis            21059  2 g_ether                                                                                                                                   
libcomposite           47227  3 usb_f_ecm,usb_f_rndis,g_ether                                                                                                             
u_ether                14662  3 usb_f_ecm,usb_f_rndis,g_ether                                                                                                             
ipv6                  303675  24                                                                                                                                          
cryptodev              33670  0                                                                                                                                           
musb_dsps               7797  0                                                                                                                                           
musb_hdrc              69070  1 musb_dsps                                                                                                                                 
usbcore               189289  1 musb_hdrc                                                                                                                                 
udc_core               11612  2 musb_hdrc,libcomposite                                                                                                                    
joydev                  9160  0                                                                                                                                           
snd_soc_simple_card     6396  0                                                                                                                                           
pm33xx                  4633  0                                                                                                                                           
omapdrm_pvr           336001  0                                                                                                                                           
omap_rng                4470  0                                                                                                                                           
rng_core                7464  2 omap_rng                                                                                                                                  
zsc31014                2190  0                                                                                                                                           
industrialio_triggered_buffer     1395  1 zsc31014                                                                                                                        
kfifo_buf               3028  1 industrialio_triggered_buffer                                                                                                             
evdev                  10092  0                                                                                                                                           
industrialio           47775  4 industrialio_triggered_buffer,iio_trig_sysfs,kfifo_buf,zsc31014                                                                           
hx8379_lcd              3745  0                                                                                                                                           
edt_ft5x06             10127  0                                                                                                                                           
snd_soc_tlv320aic31xx    21542  1                                                                                                                                         
musb_am335x             1240  0                                                                                                                                           
rtc_omap                7578  0                                                                                                                                           
omap_wdt                4479  0                                                                                                                                           
cpufreq_voltdm          3277  0                                                                                                                                           
leds_gpio               3445  0                                                                                                                                           
thermal_sys            39123  1 cpufreq_voltdm                                                                                                                            
hwmon                   3823  1 thermal_sys                                                                                                                               
------                                                                                                                                                                    
Boot settings                                                                                                                                                             
console=ttyO0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait                                                                                                    
------                                                                                                                                                                    
Linux Kernel version                                                                                                                                                      
Linux am335x-evm 4.1.6-g52c4aa7 #9 PREEMPT Tue Nov 24 09:27:05 GMT 2015 armv7l GNU/Linux

Thanks

  • Hi,

    I will ask the software team to check this.
  • Hi Michael,

    Could you please provide some more information:
    1. What is your QT application used for?
    2. Can you provide the dmesg output, so that I can see the messages right before the kernel panic?

    Best Regards,
    Yordan

  • Hi Yordan,

    At the moment the application is a simple touch based GUI using a 480x800 LCD. I've put the full dmesg out put below though there are no outputs to it before the crash

    [    0.000000] Booting Linux on physical CPU 0x0                                                                                                                          
    [    0.000000] Initializing cgroup subsys cpuset                                                                                                                          
    [    0.000000] Initializing cgroup subsys cpu                                                                                                                             
    [    0.000000] Initializing cgroup subsys cpuacct                                                                                                                         
    [    0.000000] Linux version 4.1.6-g52c4aa7 (micheal@micheal-Precision-T3600) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #9 PREEMPT Tue Nov 24 05
    [    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d                                                                                            
    [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache                                                                                   
    [    0.000000] Machine model: Vitalograph P230                                                                                                                            
    [    0.000000] cma: Reserved 24 MiB at 0x8e800000                                                                                                                         
    [    0.000000] Memory policy: Data cache writeback                                                                                                                        
    [    0.000000] On node 0 totalpages: 65536                                                                                                                                
    [    0.000000] free_area_init_node: node 0, pgdat c08af9e0, node_mem_map ce4d3000                                                                                         
    [    0.000000]   Normal zone: 576 pages used for memmap                                                                                                                   
    [    0.000000]   Normal zone: 0 pages reserved                                                                                                                            
    [    0.000000]   Normal zone: 65536 pages, LIFO batch:15                                                                                                                  
    [    0.000000] CPU: All CPU(s) started in SVC mode.                                                                                                                       
    [    0.000000] AM335X ES2.1 (sgx neon )                                                                                                                                   
    [    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768                                                                                                              
    [    0.000000] pcpu-alloc: [0] 0                                                                                                                                          
    [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 64960                                                                                 
    [    0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait                                                                
    [    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)                                                                                                        
    [    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)                                                                                            
    [    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)                                                                                              
    [    0.000000] Memory: 225672K/262144K available (6255K kernel code, 254K rwdata, 2100K rodata, 256K init, 229K bss, 11896K reserved, 24576K cma-reserved, 0K highmem)    
    [    0.000000] Virtual kernel memory layout:                                                                                                                              
    [    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)                                                                                                          
    [    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)                                                                                                          
    [    0.000000]     vmalloc : 0xd0800000 - 0xff000000   ( 744 MB)                                                                                                          
    [    0.000000]     lowmem  : 0xc0000000 - 0xd0000000   ( 256 MB)                                                                                                          
    [    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)                                                                                                          
    [    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)                                                                                                          
    [    0.000000]       .text : 0xc0008000 - 0xc083105c   (8357 kB)                                                                                                          
    [    0.000000]       .init : 0xc0832000 - 0xc0872000   ( 256 kB)                                                                                                          
    [    0.000000]       .data : 0xc0872000 - 0xc08b1a68   ( 255 kB)                                                                                                          
    [    0.000000]        .bss : 0xc08b4000 - 0xc08ed7f8   ( 230 kB)                                                                                                          
    [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1                                                                                                 
    [    0.000000] Preemptible hierarchical RCU implementation.                                                                                                               
    [    0.000000]  Additional per-CPU info printed with stalls.                                                                                                              
    [    0.000000] NR_IRQS:16 nr_irqs:16 16                                                                                                                                   
    [    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts                                                                                        
    [    0.000000] OMAP clockevent source: timer2 at 24000000 Hz                                                                                                              
    [    0.000017] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns                                                                                  
    [    0.000038] clocksource timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns                                                                   
    [    0.000049] OMAP clocksource: timer1 at 24000000 Hz                                                                                                                    
    [    0.000225] Console: colour dummy device 80x30                                                                                                                         
    [    0.000250] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'                                                                                                 
    [    0.000257] This ensures that you still see kernel messages. Please                                                                                                    
    [    0.000263] update your kernel commandline.                                                                                                                            
    [    0.000281] Calibrating delay loop... 795.44 BogoMIPS (lpj=3977216)                                                                                                    
    [    0.089114] pid_max: default: 32768 minimum: 301                                                                                                                       
    [    0.089214] Security Framework initialized                                                                                                                             
    [    0.089267] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)                                                                                                
    [    0.089278] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)                                                                                           
    [    0.089966] Initializing cgroup subsys blkio                                                                                                                           
    [    0.089990] Initializing cgroup subsys memory                                                                                                                          
    [    0.090031] Initializing cgroup subsys devices                                                                                                                         
    [    0.090045] Initializing cgroup subsys freezer                                                                                                                         
    [    0.090059] Initializing cgroup subsys perf_event                                                                                                                      
    [    0.090085] CPU: Testing write buffer coherency: ok                                                                                                                    
    [    0.090464] Setting up static identity map for 0x80008200 - 0x80008270                                                                                                 
    [    0.092030] devtmpfs: initialized                                                                                                                                      
    [    0.103066] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3                                                                                    
    [    0.112898] omap_hwmod: tptc0 using broken dt data from edma                                                                                                           
    [    0.113026] omap_hwmod: tptc1 using broken dt data from edma                                                                                                           
    [    0.113133] omap_hwmod: tptc2 using broken dt data from edma                                                                                                           
    [    0.117612] omap_hwmod: debugss: _wait_target_disable failed                                                                                                           
    [    0.172835] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns                                                            
    [    0.175059] pinctrl core: initialized pinctrl subsystem                                                                                                                
    [    0.176345] NET: Registered protocol family 16                                                                                                                         
    [    0.178545] DMA: preallocated 256 KiB pool for atomic coherent allocations                                                                                             
    [    0.209109] cpuidle: using governor ladder                                                                                                                             
    [    0.239099] cpuidle: using governor menu                                                                                                                               
    [    0.242428] gpiochip_add: registered GPIOs 0 to 31 on device: gpio                                                                                                     
    [    0.242587] OMAP GPIO hardware version 0.1                                                                                                                             
    [    0.243311] gpiochip_add: registered GPIOs 32 to 63 on device: gpio                                                                                                    
    [    0.243940] gpiochip_add: registered GPIOs 64 to 95 on device: gpio                                                                                                    
    [    0.244526] gpiochip_add: registered GPIOs 96 to 127 on device: gpio                                                                                                   
    [    0.252995] No ATAGs?                                                                                                                                                  
    [    0.253026] hw-breakpoint: debug architecture 0x4 unsupported.                                                                                                         
    [    0.297479] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver                                                                                               
    [    0.297975] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator@0[0]'                                                                       
    [    0.298283] reg-fixed-voltage fixedregulator@1: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_wl1835_gpio, deferring probe        
    [    0.301098] vgaarb: loaded                                                                                                                                             
    [    0.301614] SCSI subsystem initialized                                                                                                                                 
    [    0.302137] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe                       
    [    0.302186] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c1_pins, deferring probe                       
    [    0.302337] pps_core: LinuxPPS API ver. 1 registered                                                                                                                   
    [    0.302346] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>                                                                   
    [    0.302378] PTP clock support registered                                                                                                                               
    [    0.303203] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400                                                                                                      
    [    0.303441] Advanced Linux Sound Architecture Driver Initialized.                                                                                                      
    [    0.304279] Switched to clocksource timer1                                                                                                                             
    [    0.314872] NET: Registered protocol family 2                                                                                                                          
    [    0.315707] TCP established hash table entries: 2048 (order: 1, 8192 bytes)                                                                                            
    [    0.315741] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)                                                                                                   
    [    0.315769] TCP: Hash tables configured (established 2048 bind 2048)                                                                                                   
    [    0.315854] UDP hash table entries: 256 (order: 0, 4096 bytes)                                                                                                         
    [    0.315873] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)                                                                                                    
    [    0.316048] NET: Registered protocol family 1                                                                                                                          
    [    0.316435] RPC: Registered named UNIX socket transport module.                                                                                                        
    [    0.316449] RPC: Registered udp transport module.                                                                                                                      
    [    0.316456] RPC: Registered tcp transport module.                                                                                                                      
    [    0.316463] RPC: Registered tcp NFSv4.1 backchannel transport module.                                                                                                  
    [    0.316490] PCI: CLS 0 bytes, default 64                                                                                                                               
    [    0.317341] CPU PMU: Failed to parse /pmu/interrupt-affinity[0]                                                                                                        
    [    0.317392] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available                                                                               
    [    0.319427] futex hash table entries: 256 (order: -1, 3072 bytes)                                                                                                      
    [    0.319523] audit: initializing netlink subsys (disabled)                                                                                                              
    [    0.319590] audit: type=2000 audit(0.300:1): initialized                                                                                                               
    [    0.327237] VFS: Disk quotas dquot_6.6.0                                                                                                                               
    [    0.327453] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)                                                                                            
    [    0.329723] NFS: Registering the id_resolver key type                                                                                                                  
    [    0.329797] Key type id_resolver registered                                                                                                                            
    [    0.329806] Key type id_legacy registered                                                                                                                              
    [    0.329882] jffs2: version 2.2. (NAND) (SUMMARY)  �© 2001-2006 Red Hat, Inc.                                                                                           
    [    0.332451] NET: Registered protocol family 38                                                                                                                         
    [    0.332531] io scheduler noop registered                                                                                                                               
    [    0.332548] io scheduler deadline registered                                                                                                                           
    [    0.332608] io scheduler cfq registered (default)                                                                                                                      
    [    0.333593] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568                                                                                           
    [    0.335665] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle                                                                                               
    [    0.336756] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled                                                                                                   
    [    0.339821] omap8250 44e09000.serial: GPIO lookup for consumer enable                                                                                                  
    [    0.339841] omap8250 44e09000.serial: using device tree for GPIO lookup                                                                                                
    [    0.339857] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/ocp/serial@44e09000[0]'                                                            
    [    0.339868] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/ocp/serial@44e09000[0]'                                                             
    [    0.339878] omap8250 44e09000.serial: using lookup tables for GPIO lookup                                                                                              
    [    0.339889] omap8250 44e09000.serial: lookup for GPIO enable failed                                                                                                    
    [    0.340334] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 155, base_baud = 3000000) is a 8250                                                                       
    [    1.003455] console [ttyS0] enabled                                                                                                                                    
    [    1.007511] omap8250 48022000.serial: GPIO lookup for consumer enable                                                                                                  
    [    1.007526] omap8250 48022000.serial: using device tree for GPIO lookup                                                                                                
    [    1.007541] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/ocp/serial@48022000[0]'                                                            
    [    1.007552] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/ocp/serial@48022000[0]'                                                             
    [    1.007562] omap8250 48022000.serial: using lookup tables for GPIO lookup                                                                                              
    [    1.007573] omap8250 48022000.serial: lookup for GPIO enable failed                                                                                                    
    [    1.007933] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 156, base_baud = 3000000) is a 8250                                                                       
    [    1.017284] omap8250 481a8000.serial: GPIO lookup for consumer enable                                                                                                  
    [    1.017300] omap8250 481a8000.serial: using device tree for GPIO lookup                                                                                                
    [    1.017313] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/ocp/serial@481a8000[0]'                                                            
    [    1.017323] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/ocp/serial@481a8000[0]'                                                             
    [    1.017333] omap8250 481a8000.serial: using lookup tables for GPIO lookup                                                                                              
    [    1.017343] omap8250 481a8000.serial: lookup for GPIO enable failed                                                                                                    
    [    1.017659] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 157, base_baud = 3000000) is a 8250                                                                       
    [    1.027564] [drm] Initialized drm 1.1.0 20060810                                                                                                                       
    [    1.032622] panel panel: GPIO lookup for consumer enable                                                                                                               
    [    1.032636] panel panel: using device tree for GPIO lookup                                                                                                             
    [    1.032649] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/panel[0]'                                                                          
    [    1.032659] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/panel[0]'                                                                           
    [    1.032669] panel panel: using lookup tables for GPIO lookup                                                                                                           
    [    1.032679] panel panel: lookup for GPIO enable failed                                                                                                                 
    [    1.033952] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).                                                                                                
    [    1.040721] [drm] No driver support for vblank timestamp query.                                                                                                        
    [    1.090043] Console: switching to colour frame buffer device 60x50                                                                                                     
    [    1.101894] tilcdc 4830e000.lcdc: fb0:  frame buffer device                                                                                                            
    [    1.107512] tilcdc 4830e000.lcdc: registered panic notifier                                                                                                            
    [    1.134305] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0                                                                                                         
    [    1.150683] brd: module loaded                                                                                                                                         
    [    1.158892] loop: module loaded                                                                                                                                        
    [    1.162992] mtdoops: mtd device (mtddev=name/number) must be supplied                                                                                                  
    [    1.173292] mousedev: PS/2 mouse device common for all mice                                                                                                            
    [    1.179132] i2c /dev entries driver                                                                                                                                    
    [    1.183637] omap_hsmmc 48060000.mmc: GPIO lookup for consumer cd                                                                                                       
    [    1.183655] omap_hsmmc 48060000.mmc: using device tree for GPIO lookup                                                                                                 
    [    1.183686] of_get_named_gpiod_flags: parsed 'cd-gpios' property of node '/ocp/mmc@48060000[0]' - status (0)                                                           
    [    1.183766] omap_hsmmc 48060000.mmc: Got CD GPIO                                                                                                                       
    [    1.188523] omap_hsmmc 48060000.mmc: GPIO lookup for consumer wp                                                                                                       
    [    1.188535] omap_hsmmc 48060000.mmc: using device tree for GPIO lookup                                                                                                 
    [    1.188548] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@48060000[0]'                                                                   
    [    1.188558] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@48060000[0]'                                                                    
    [    1.188568] omap_hsmmc 48060000.mmc: using lookup tables for GPIO lookup                                                                                               
    [    1.188579] omap_hsmmc 48060000.mmc: lookup for GPIO wp failed                                                                                                         
    [    1.224914] omap_hsmmc 481d8000.mmc: GPIO lookup for consumer cd                                                                                                       
    [    1.224935] omap_hsmmc 481d8000.mmc: using device tree for GPIO lookup                                                                                                 
    [    1.224951] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/ocp/mmc@481d8000[0]'                                                                   
    [    1.224961] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/ocp/mmc@481d8000[0]'                                                                    
    [    1.224971] omap_hsmmc 481d8000.mmc: using lookup tables for GPIO lookup                                                                                               
    [    1.224982] omap_hsmmc 481d8000.mmc: lookup for GPIO cd failed                                                                                                         
    [    1.224993] omap_hsmmc 481d8000.mmc: GPIO lookup for consumer wp                                                                                                       
    [    1.225002] omap_hsmmc 481d8000.mmc: using device tree for GPIO lookup                                                                                                 
    [    1.225013] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@481d8000[0]'                                                                   
    [    1.225023] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@481d8000[0]'                                                                    
    [    1.225032] omap_hsmmc 481d8000.mmc: using lookup tables for GPIO lookup                                                                                               
    [    1.225041] omap_hsmmc 481d8000.mmc: lookup for GPIO wp failed                                                                                                         
    [    1.264613] omap_hsmmc 47810000.mmc: GPIO lookup for consumer cd                                                                                                       
    [    1.264633] omap_hsmmc 47810000.mmc: using device tree for GPIO lookup                                                                                                 
    [    1.264648] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/ocp/mmc@47810000[0]'                                                                   
    [    1.264659] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/ocp/mmc@47810000[0]'                                                                    
    [    1.264668] omap_hsmmc 47810000.mmc: using lookup tables for GPIO lookup                                                                                               
    [    1.264679] omap_hsmmc 47810000.mmc: lookup for GPIO cd failed                                                                                                         
    [    1.264692] omap_hsmmc 47810000.mmc: GPIO lookup for consumer wp                                                                                                       
    [    1.264701] omap_hsmmc 47810000.mmc: using device tree for GPIO lookup                                                                                                 
    [    1.264710] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@47810000[0]'                                                                   
    [    1.264720] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@47810000[0]'                                                                    
    [    1.264729] omap_hsmmc 47810000.mmc: using lookup tables for GPIO lookup                                                                                               
    [    1.264739] omap_hsmmc 47810000.mmc: lookup for GPIO wp failed                                                                                                         
    [    1.264953] omap_hsmmc 47810000.mmc: unable to obtain RX DMA engine channel 0                                                                                          
    [    1.294672] ledtrig-cpu: registered to indicate activity on CPUs                                                                                                       
    [    1.301054] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2                                                                                                          
    [    1.308346] omap-sham 53100000.sham: hw accel on OMAP rev 4.3                                                                                                          
    [    1.315936]  remoteproc0: wkup_m3 is available                                                                                                                         
    [    1.320428]  remoteproc0: Note: remoteproc is still under development and considered experimental.                                                                     
    [    1.329707]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.                                                     
    [    1.340372]  remoteproc0: Direct firmware load for am335x-pm-firmware.elf failed with error -2                                                                         
    [    1.349119] mmc1: MAN_BKOPS_EN bit is not set                                                                                                                          
    [    1.356467] oprofile: using arm/armv7                                                                                                                                  
    [    1.360229]  remoteproc0: Falling back to user helper                                                                                                                  
    [    1.365936] Initializing XFRM netlink socket                                                                                                                           
    [    1.370358] NET: Registered protocol family 17                                                                                                                         
    [    1.374941] mmc1: new high speed MMC card at address 0001                                                                                                              
    [    1.381046] mmcblk0: mmc1:0001 MMC04G 3.65 GiB                                                                                                                         
    [    1.385754] NET: Registered protocol family 15                                                                                                                         
    [    1.390339] Key type dns_resolver registered                                                                                                                           
    [    1.394848] mmcblk0boot0: mmc1:0001 MMC04G partition 1 1.00 MiB                                                                                                        
    [    1.401208] mmcblk0boot1: mmc1:0001 MMC04G partition 2 1.00 MiB                                                                                                        
    [    1.407255] omap_voltage_late_init: Voltage driver support not added                                                                                                   
    [    1.414133] ThumbEE CPU extension supported.                                                                                                                           
    [    1.419329] Registering SWP/SWPB emulation handler                                                                                                                     
    [    1.424330]  mmcblk0: p1 p2                                                                                                                                            
    [    1.431522] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator@1[0]' - status (0)                                                               
    [    1.433517] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/input/input0                                                                    
    [    1.463601] tps65217 0-0024: TPS65217 ID 0xe version 1.2                                                                                                               
    [    1.471865] rtc-pcf8523 0-0068: rtc core: registered rtc-pcf8523 as rtc0                                                                                               
    [    1.478697] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz                                                                                                            
    [    1.504726] gpiochip_find_base: found new base at 504                                                                                                                  
    [    1.504892] gpiochip_add: registered GPIOs 504 to 511 on device: pca9534                                                                                               
    [    1.504908] pca953x 1-0020: interrupt support not compiled in                                                                                                          
    [    1.510710] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz                                                                                                            
    [    1.517681] hctosys: unable to open rtc device (rtc1)                                                                                                                  
    [    1.526528] wlan-en-regulator: disabling                                                                                                                               
    [    1.530589] ALSA device list:                                                                                                                                          
    [    1.533594]   No soundcards found.                                                                                                                                     
    [    1.542140] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly filesystem                                                                                        
    [    1.549695] EXT4-fs (mmcblk0p2): write access will be enabled during recovery                                                                                          
    [    3.865600] EXT4-fs (mmcblk0p2): recovery complete                                                                                                                     
    [    3.874103] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)                                                                               
    [    3.882361] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.                                                                                              
    [    3.891098] devtmpfs: mounted                                                                                                                                          
    [    3.894564] Freeing unused kernel memory: 256K (c0832000 - c0872000)                                                                                                   
    [    4.501122] udevd[99]: starting version 182                                                                                                                            
    [    4.808329] of_get_named_gpiod_flags: parsed 'gpios' property of node '/leds/led@3[0]' - status (0)                                                                    
    [    4.810011] of_get_named_gpiod_flags: parsed 'gpios' property of node '/leds/led@4[0]' - status (0)                                                                    
    [    4.824922] cpu cpu0: of_pm_voltdm_notifier_register: Fail calculating voltage latency[950000<->1260000]:-22                                                           
    [    4.835639] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec                                                                                             
    [    4.986270] am335x-phy-driver 47401300.usb-phy: GPIO lookup for consumer reset                                                                                         
    [    4.986300] am335x-phy-driver 47401300.usb-phy: using device tree for GPIO lookup                                                                                      
    [    4.986318] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/usb@47400000/usb-phy@47401300[0]'                                               
    [    4.986330] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/usb@47400000/usb-phy@47401300[0]'                                                
    [    4.986340] am335x-phy-driver 47401300.usb-phy: using lookup tables for GPIO lookup                                                                                    
    [    4.986351] am335x-phy-driver 47401300.usb-phy: lookup for GPIO reset failed                                                                                           
    [    4.986363] am335x-phy-driver 47401300.usb-phy: GPIO lookup for consumer vbus-detect                                                                                   
    [    4.986373] am335x-phy-driver 47401300.usb-phy: using device tree for GPIO lookup                                                                                      
    [    4.986383] of_get_named_gpiod_flags: can't parse 'vbus-detect-gpios' property of node '/ocp/usb@47400000/usb-phy@47401300[0]'                                         
    [    4.986394] of_get_named_gpiod_flags: can't parse 'vbus-detect-gpio' property of node '/ocp/usb@47400000/usb-phy@47401300[0]'                                          
    [    4.986403] am335x-phy-driver 47401300.usb-phy: using lookup tables for GPIO lookup                                                                                    
    [    4.986413] am335x-phy-driver 47401300.usb-phy: lookup for GPIO vbus-detect failed                                                                                     
    [    4.986993] cpu cpu0: of_pm_voltdm_notifier_register: Fail calculating voltage latency[950000<->1260000]:-22                                                           
    [    5.001685] 47401300.usb-phy supply vcc not found, using dummy regulator                                                                                               
    [    5.043344] of_get_named_gpiod_flags: can't parse 'gpio-reset' property of node '/ocp/i2c@4802a000/tlv320aic3111@18[0]'                                                
    [    5.114746] edt_ft5x06 1-0038: GPIO lookup for consumer reset                                                                                                          
    [    5.114775] edt_ft5x06 1-0038: using device tree for GPIO lookup                                                                                                       
    [    5.114792] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/i2c@4802a000/edt-ft5x06@38[0]'                                                  
    [    5.114804] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/i2c@4802a000/edt-ft5x06@38[0]'                                                   
    [    5.114814] edt_ft5x06 1-0038: using lookup tables for GPIO lookup                                                                                                     
    [    5.114825] edt_ft5x06 1-0038: lookup for GPIO reset failed                                                                                                            
    [    5.114837] edt_ft5x06 1-0038: GPIO lookup for consumer wake                                                                                                           
    [    5.114846] edt_ft5x06 1-0038: using device tree for GPIO lookup                                                                                                       
    [    5.114855] of_get_named_gpiod_flags: can't parse 'wake-gpios' property of node '/ocp/i2c@4802a000/edt-ft5x06@38[0]'                                                   
    [    5.114866] of_get_named_gpiod_flags: can't parse 'wake-gpio' property of node '/ocp/i2c@4802a000/edt-ft5x06@38[0]'                                                    
    [    5.114875] edt_ft5x06 1-0038: using lookup tables for GPIO lookup                                                                                                     
    [    5.114884] edt_ft5x06 1-0038: lookup for GPIO wake failed                                                                                                             
    [    5.114894] edt_ft5x06 1-0038: GPIO lookup for consumer irq                                                                                                            
    [    5.114903] edt_ft5x06 1-0038: using device tree for GPIO lookup                                                                                                       
    [    5.114912] of_get_named_gpiod_flags: can't parse 'irq-gpios' property of node '/ocp/i2c@4802a000/edt-ft5x06@38[0]'                                                    
    [    5.114923] of_get_named_gpiod_flags: can't parse 'irq-gpio' property of node '/ocp/i2c@4802a000/edt-ft5x06@38[0]'                                                     
    [    5.114932] edt_ft5x06 1-0038: using lookup tables for GPIO lookup                                                                                                     
    [    5.114941] edt_ft5x06 1-0038: lookup for GPIO irq failed                                                                                                              
    [    5.136424] input: EP0790M09 as /devices/platform/ocp/4802a000.i2c/i2c-1/1-0038/input/input1                                                                           
    [    5.166094] am335x-phy-driver 47401b00.usb-phy: GPIO lookup for consumer reset                                                                                         
    [    5.166123] am335x-phy-driver 47401b00.usb-phy: using device tree for GPIO lookup                                                                                      
    [    5.166142] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/usb@47400000/usb-phy@47401b00[0]'                                               
    [    5.166152] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/usb@47400000/usb-phy@47401b00[0]'                                                
    [    5.166162] am335x-phy-driver 47401b00.usb-phy: using lookup tables for GPIO lookup                                                                                    
    [    5.166174] am335x-phy-driver 47401b00.usb-phy: lookup for GPIO reset failed                                                                                           
    [    5.166186] am335x-phy-driver 47401b00.usb-phy: GPIO lookup for consumer vbus-detect                                                                                   
    [    5.166196] am335x-phy-driver 47401b00.usb-phy: using device tree for GPIO lookup                                                                                      
    [    5.166207] of_get_named_gpiod_flags: can't parse 'vbus-detect-gpios' property of node '/ocp/usb@47400000/usb-phy@47401b00[0]'                                         
    [    5.166217] of_get_named_gpiod_flags: can't parse 'vbus-detect-gpio' property of node '/ocp/usb@47400000/usb-phy@47401b00[0]'                                          
    [    5.166227] am335x-phy-driver 47401b00.usb-phy: using lookup tables for GPIO lookup                                                                                    
    [    5.166236] am335x-phy-driver 47401b00.usb-phy: lookup for GPIO vbus-detect failed                                                                                     
    [    5.166302] 47401b00.usb-phy supply vcc not found, using dummy regulator                                                                                               
    [    5.325392] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc1                                                                                           
    [    5.333781] hx8379 lcd driver probe v0.06                                                                                                                              
    [    5.427323] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20                                                                                                
    [    5.766987] PM: bootloader does not support rtc-only!                                                                                                                  
    [    5.827528]  remoteproc0: powering up wkup_m3                                                                                                                          
    [    5.832877]  remoteproc0: Booting fw image am335x-pm-firmware.elf, size 219803                                                                                         
    [    5.947719] of_get_named_gpiod_flags: can't parse 'simple-audio-card,hp-det-gpio' property of node '/sound[0]'                                                         
    [    5.947747] of_get_named_gpiod_flags: can't parse 'simple-audio-card,mic-det-gpio' property of node '/sound[0]'                                                        
    [    5.973673]  remoteproc0: remote processor wkup_m3 is now up                                                                                                           
    [    5.973706] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x191                                                                                             
    [    5.987456] asoc-simple-card sound: tlv320aic31xx-hifi <-> 48038000.mcasp mapping ok                                                                                   
    [    6.034570] asoc-simple-card sound: ASoC: no source widget found for LINE_OUT                                                                                          
    [    6.041788] asoc-simple-card sound: ASoC: Failed to add route LINE_OUT -> direct -> External Speaker                                                                   
    [    8.183749] usbcore: registered new interface driver usbfs                                                                                                             
    [    8.324666] usbcore: registered new interface driver hub                                                                                                               
    [    8.364549] usbcore: registered new device driver usb                                                                                                                  
    [    8.508369] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)                                                   
    [    8.508399] musb-hdrc: MHDRC RTL version 2.0                                                                                                                           
    [    8.508409] musb-hdrc: setup fifo_mode 4                                                                                                                               
    [    8.508431] musb-hdrc: 28/31 max ep, 16384/16384 memory                                                                                                                
    [    8.508599] musb-hdrc musb-hdrc.0.auto: MUSB HDRC host driver                                                                                                          
    [    8.561458] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.                                                          
    [    8.592208] musb-hdrc musb-hdrc.0.auto: new USB bus registered, assigned bus number 1                                                                                  
    [    8.642652] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002                                                                                              
    [    8.689779] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1                                                                                         
    [    8.736165] usb usb1: Product: MUSB HDRC host driver                                                                                                                   
    [    8.774501] usb usb1: Manufacturer: Linux 4.1.6-g52c4aa7 musb-hcd                                                                                                      
    [    8.780664] usb usb1: SerialNumber: musb-hdrc.0.auto                                                                                                                   
    [    8.849158] hub 1-0:1.0: USB hub found                                                                                                                                 
    [    8.866983] hub 1-0:1.0: 1 port detected                                                                                                                               
    [    8.921036] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)                                                   
    [    8.921064] musb-hdrc: MHDRC RTL version 2.0                                                                                                                           
    [    8.921074] musb-hdrc: setup fifo_mode 4                                                                                                                               
    [    8.921093] musb-hdrc: 28/31 max ep, 16384/16384 memory                                                                                                                
    [    8.921250] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver                                                                                                          
    [    8.944485] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2                                                                                  
    [    8.969715] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002                                                                                              
    [    8.991265] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1                                                                                         
    [    9.016033] usb usb2: Product: MUSB HDRC host driver                                                                                                                   
    [    9.021048] usb usb2: Manufacturer: Linux 4.1.6-g52c4aa7 musb-hcd                                                                                                      
    [    9.055287] usb usb2: SerialNumber: musb-hdrc.1.auto                                                                                                                   
    [    9.065450] hub 2-0:1.0: USB hub found                                                                                                                                 
    [    9.074449] hub 2-0:1.0: 1 port detected                                                                                                                               
    [    9.241672] IIO Flow Driver v0.01                                                                                                                                      
    [    9.337522] cryptodev: driver 1.6 loaded.                                                                                                                              
    [    9.383694] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered                                                                                                        
    [    9.512752] random: nonblocking pool is initialized                                                                                                                    
    [   12.104088] NET: Registered protocol family 10                                                                                                                         
    [   12.950435] udc musb-hdrc.0.auto: registering UDC driver [g_ether]                                                                                                     
    [   12.971503] using random self ethernet address                                                                                                                         
    [   12.976276] using random host ethernet address                                                                                                                         
    [   12.985918] usb0: HOST MAC 56:3d:a5:96:11:5e                                                                                                                           
    [   12.994962] usb0: MAC 0e:75:c4:64:18:8a                                                                                                                                
    [   13.005381] using random self ethernet address                                                                                                                         
    [   13.014269] using random host ethernet address                                                                                                                         
    [   13.019453] g_ether gadget: adding config #2 'RNDIS'/bf230910                                                                                                          
    [   13.019476] rndis_register: configNr = 0                                                                                                                               
    [   13.019492] g_ether gadget: adding 'rndis'/cdddeb40 to config 'RNDIS'/bf230910                                                                                         
    [   13.019536] rndis_set_param_medium: 0 0                                                                                                                                
    [   13.019549] g_ether gadget: RNDIS: dual speed IN/ep1in OUT/ep1out NOTIFY/ep2in                                                                                         
    [   13.019564] g_ether gadget: cfg 2/bf230910 speeds: high full                                                                                                           
    [   13.019575] g_ether gadget:   interface 0 = rndis/cdddeb40                                                                                                             
    [   13.019585] g_ether gadget:   interface 1 = rndis/cdddeb40                                                                                                             
    [   13.019603] g_ether gadget: adding config #1 'CDC Ethernet (ECM)'/bf230864                                                                                             
    [   13.019624] g_ether gadget: adding 'cdc_ethernet'/cddded80 to config 'CDC Ethernet (ECM)'/bf230864                                                                     
    [   13.019652] g_ether gadget: CDC Ethernet: dual speed IN/ep1in OUT/ep1out NOTIFY/ep2in                                                                                  
    [   13.019665] g_ether gadget: cfg 1/bf230864 speeds: high full                                                                                                           
    [   13.019676] g_ether gadget:   interface 0 = cdc_ethernet/cddded80                                                                                                      
    [   13.019687] g_ether gadget:   interface 1 = cdc_ethernet/cddded80                                                                                                      
    [   13.019706] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008                                                                                                
    [   13.043561] g_ether gadget: g_ether ready                                                                                                                              
    [   13.051490] g_ether musb-hdrc.0.auto: usb_gadget_udc_start                                                                                                             
    [   13.137834] usb0: eth_open                                                                                                                                             
    [   13.137984] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready                                                                                                         
    [   15.290499] g_ether gadget: suspend                                                                                                                                    
    [  209.734381] g_ether gadget: high-speed config #1: CDC Ethernet (ECM)                                                                                                   
    [  209.740843] g_ether gadget: init ecm                                                                                                                                   
    [  209.740871] g_ether gadget: notify connect false                                                                                                                       
    [  209.741395] g_ether gadget: activate ecm                                                                                                                               
    [  209.741470] usb0: qlen 10                                                                                                                                              
    [  209.741493] g_ether gadget: ecm_open                                                                                                                                   
    [  209.741526] usb0: eth_start                                                                                                                                            
    [  209.741735] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready                                                                                                    
    [  209.778982] g_ether gadget: notify connect true                                                                                                                        
    [  209.810981] g_ether gadget: notify speed 425984000                                                                                                                     
    [  299.796088] Alarm Interrupt                                                                                                                                            
    [ 1257.384552] ------------[ cut here ]------------                                                                                                                       
    [ 1257.389915] WARNING: CPU: 0 PID: 6 at mm/page_alloc.c:6520 free_contig_range+0xa0/0xb8()                                                                               
    [ 1257.398788] 375 pages are still in use!                                                                                                                                
    [ 1257.402674] Modules linked in: iio_trig_sysfs usb_f_ecm g_ether usb_f_rndis libcomposite u_ether ipv6 cryptodev(O) musb_dsps musb_hdrc usbcore udc_core joydev snd_socn
    [ 1257.439517] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G           O    4.1.6-g52c4aa7 #9                                                                               
    [ 1257.448256] Hardware name: Generic AM33XX (Flattened Device Tree)                                                                                                      
    [ 1257.454508] Workqueue: tilcdc flip_worker                                                                                                                              
    [ 1257.458659] Backtrace:                                                                                                                                                 
    [ 1257.461238] [<c0012b10>] (dump_backtrace) from [<c0012d30>] (show_stack+0x18/0x1c)                                                                                     
    [ 1257.469469]  r7:c0790168 r6:00001978 r5:00000009 r4:00000000                                                                                                           
    [ 1257.475271] [<c0012d18>] (show_stack) from [<c061b0a8>] (dump_stack+0x20/0x28)                                                                                         
    [ 1257.482538] [<c061b088>] (dump_stack) from [<c0037d6c>] (warn_slowpath_common+0x7c/0xb4)                                                                               
    [ 1257.491009] [<c0037cf0>] (warn_slowpath_common) from [<c0037ddc>] (warn_slowpath_fmt+0x38/0x40)                                                                        
    [ 1257.499810]  r8:c0876580 r7:00000177 r6:c08cf5c4 r5:0008ee77 r4:c0790854                                                                                               
    [ 1257.506786] [<c0037da8>] (warn_slowpath_fmt) from [<c00c5d54>] (free_contig_range+0xa0/0xb8)                                                                           
    [ 1257.515502]  r3:00000177 r2:c0790854                                                                                                                                   
    [ 1257.519117]  r4:00000000                                                                                                                                               
    [ 1257.521686] [<c00c5cb4>] (free_contig_range) from [<c0106380>] (cma_release+0x94/0xbc)                                                                                 
    [ 1257.529936]  r9:ce4d3000 r8:ced00000 r7:cd8f1e10 r6:00000001 r5:c08d03fc r4:0008ed00                                                                                   
    [ 1257.537824] [<c01062ec>] (cma_release) from [<c04067d8>] (dma_release_from_contiguous+0x34/0x3c)                                                                       
    [ 1257.547007]  r5:00215400 r4:00177000                                                                                                                                   
    [ 1257.550654] [<c04067a4>] (dma_release_from_contiguous) from [<c001af14>] (__arm_dma_free+0x14c/0x1f8)                                                                  
    [ 1257.560233] [<c001adc8>] (__arm_dma_free) from [<c001b010>] (arm_dma_free+0x24/0x2c)                                                                                   
    [ 1257.568209]  r10:cc1aea54 r9:cc1ae9c0 r8:cd9d8834 r7:cc1aea48 r6:00000001 r5:c001afec                                                                                  
    [ 1257.576352]  r4:ca091a00                                                                                                                                               
    [ 1257.578923] [<c001afec>] (arm_dma_free) from [<c03e994c>] (drm_gem_cma_free_object+0x5c/0x98)                                                                          
    [ 1257.587880] [<c03e98f0>] (drm_gem_cma_free_object) from [<c03cd768>] (drm_gem_object_free+0x30/0x38)                                                                   
    [ 1257.597119]  r5:ffffffff r4:ca091a00                                                                                                                                   
    [ 1257.600740] [<c03cd738>] (drm_gem_object_free) from [<c03c8e9c>] (drm_fb_cma_destroy+0xa8/0xb4)                                                                        
    [ 1257.609799] [<c03c8df4>] (drm_fb_cma_destroy) from [<c03d7cfc>] (drm_framebuffer_free+0x54/0x58)                                                                       
    [ 1257.618710]  r10:cd9d9358 r9:cd9d9370 r8:cd866000 r7:cc1ae9c0 r6:cd9d8800 r5:cd9d895c                                                                                  
    [ 1257.626797]  r4:cc1ae9c4 r3:c03c8df4                                                                                                                                   
    [ 1257.630410] [<c03d7ca8>] (drm_framebuffer_free) from [<c03d7d4c>] (drm_framebuffer_unreference+0x4c/0x80)                                                              
    [ 1257.640312]  r7:cd9d9350 r6:cd867eb8 r5:cc1ae9c0 r4:cc1ae9c0                                                                                                           
    [ 1257.646093] [<c03d7d00>] (drm_framebuffer_unreference) from [<c03f53f4>] (unref_worker+0x28/0x34)                                                                      
    [ 1257.655237]  r4:cd9d88f8                                                                                                                                               
    [ 1257.657802] [<c03f53cc>] (unref_worker) from [<c03e6fac>] (flip_worker+0xbc/0xe0)                                                                                      
    [ 1257.665548]  r5:cc131300 r4:cd867eb8                                                                                                                                   
    [ 1257.669184] [<c03e6ef0>] (flip_worker) from [<c004c43c>] (process_one_work+0x12c/0x374)                                                                                
    [ 1257.677454]  r10:cd829a00 r9:00000000 r8:cd803a00 r7:cd94cf00 r6:00000000 r5:cd9d9358                                                                                  
    [ 1257.685404]  r4:cd829a00                                                                                                                                               
    [ 1257.687965] [<c004c310>] (process_one_work) from [<c004c6e4>] (worker_thread+0x60/0x5cc)                                                                               
    [ 1257.697643]  r10:cd829a00 r9:cd803b60 r8:cd803a00 r7:cd803a10 r6:00000088 r5:cd829a18                                                                                  
    [ 1257.705707]  r4:cd803a00                                                                                                                                               
    [ 1257.708285] [<c004c684>] (worker_thread) from [<c0051a9c>] (kthread+0xd4/0xf0)                                                                                         
    [ 1257.715913]  r10:00000000 r9:00000000 r8:00000000 r7:c004c684 r6:cd829a00 r5:cd82d100                                                                                  
    [ 1257.723831]  r4:00000000                                                                                                                                               
    [ 1257.726609] [<c00519c8>] (kthread) from [<c000f928>] (ret_from_fork+0x14/0x2c)                                                                                         
    [ 1257.733875]  r7:00000000 r6:00000000 r5:c00519c8 r4:cd82d100                                                                                                           
    [ 1257.739853] ---[ end trace e03482cdb2fe71b0 ]---

  • Hi Michael, did you ever resolve this issue? I am seeing the same exact output and also noticing very poor performance.