pvrsrvkm crash on kernel 3.2.1

Has the SGX clock been enabled ? Has the /etc/init.d/omap-demo init script been run before running the driver ?

we use openembedded which includes this startup script (runs after boot):

http://arago-project.org/git/?p=arago.git;a=blob_plain;f=recipes/powervr-drivers/libgles-omap3/rc.pvr;hb=HEAD

in the mean time i managed to compile version 1.4.14.2616 against my kernel (some compile fixes were needed) and this Version works.

What changes are required to move to the newer Version? Was there something changed like clock activation?

I also noticed that the crash happens while waiting on a register change, i did put a trace there to look at the address of the register in question and the exact same address seems to be successfully fetched during the run of the init script (rc.pvr).

Maybe it has something to do with power-management (PVRSRVSetDevicePowerStateKM is in the stack trace)?

Hi,

Thanks a lot for the logs/details provided. Appreciate it.

Did you see the problem with 2.6.37 kernel as well?

The graphics sdk release notes would provide details on toolchain/kernel versions validated with for all supported platforms  -

http://processors.wiki.ti.com/index.php/RN_4_05_00_03

In order to isolate the problem, can you try the manual steps below-

(rmmod first in case already inserted by default & then do below steps)

devmem2 0x48004B48 w 0x2
devmem2 0x48004B10 w 0x1
devmem2 0x48004B00 w 0x2

insmod pvrsrvkm.ko

insmod omaplfb.ko

Run /usr/bin/ES3.0/pvrsrvinit

If you do not see any problems  with above steps, try running any 3D demo under -

/usr/bin/SGX/demos/Raw/OGLES2.

Also you had mentioned it works fine with 1.4.14.2616.  Did you try other 1.6 versions before trying this & still saw the issue with any 1.6 version ?

Thanks,

Prathap.

Hi,

first of all thanks for your interest in this issue!

i disabled my init-script and tried the commands mentioned. The result was, that /usr/bin/ES3.0/pvrsrvinit died with the same stack trace as the test application before.

Most interesting is that the init-script does something very similar and seems to succeed.
it comes essentially down to:

insmod /lib/modules/3.2.1/kernel/drivers/gpu/pvr/pvrsrvkm.ko
modprobe omaplfb
modprobe bufferclass_ti
devmem2 0x48004B48 w 0x2
devmem2 0x48004B10 w 0x1
devmem2 0x48004B00 w 0x2
/usr/bin/pvrsrvinit

this runs without error until a test application is started (i only have pvr2d_test on my device at the moment)
while if i turn it around:

devmem2 0x48004B48 w 0x2
devmem2 0x48004B10 w 0x1
devmem2 0x48004B00 w 0x2
insmod /lib/modules/3.2.1/kernel/drivers/gpu/pvr/pvrsrvkm.ko
modprobe omaplfb
modprobe bufferclass_ti
/usr/bin/pvrsrvinit

it crashes with the same stacktrace as the test application would.

I've yet to try other 1.6 versions.

Hi,

Thanks a lot  for the clear explanation/steps.

Now you have mentioned that -

insmod /lib/modules/3.2.1/kernel/drivers/gpu/pvr/pvrsrvkm.ko
modprobe omaplfb
modprobe bufferclass_ti
devmem2 0x48004B48 w 0x2
devmem2 0x48004B10 w 0x1
devmem2 0x48004B00 w 0x2
/usr/bin/pvrsrvinit

this runs without error until a test application is started.

At this stage ,before starting application, can you read back the register values using devmem. See if its the same values as we wrote above.

If it has changed, run the 3 devmem commands again just before running the test app & see if app crashes now.

The description you provided is conveying that somehow SGX clocks are getting disabled. Did you see this with 2.6.37 kernel as well?

Thanks,

Prathap.

Hi,

We ran the tests again on OMAP3530 EVM to confirm (with 2.6.37 kernel as mentioned in release notes) and it works fine. Logs below-

# cputype
OMAP3530
# ./pvr2d_test  //No error or crash seen
# /opt/gfxsdkdemos/ogles2/OGLES2ChameleonMan  //3D demos run fine
PVRShell: EGL 1.4 initialized
# cat /proc/pvr/version
Version 1.6.16.4117 (release) /home1/prathap/Graphics_SDK_4_05_00_03/GFX_Linux_KM
System Version String: SGX revision = 1.2.1
# uname -a
2.6.37 #8 Tue Jan 31 11:38:57 IST 2012 armv7l unknown

Can you check the ouput of cputype command on your board? Also it would be helpful to see results on your system against 2.6.37 kernel.

This would help us isolate if its a setup/environment or a kernel specific issue.

Also share the download link to the 3.2 kernel sources you are using.

Also, you can try the build and install of standalone graphics SDK against the 3.2 kernel you have if possible. The  latest release package 04.05.00.03 is available at -

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/gfxsdk/latest/index_FDS.html

User guide -

http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide

Release notes-

http://processors.wiki.ti.com/index.php/RN_4_05_00_03

Thanks,

Prathap.

Hello,

I also get kernel BUGs in omap_l3_smx.c, and this is with kernel 3.2.2. It happens when I run audio at lower latencies, which causes more interrupts to happen. Simultaneously as the CPU load gets higher (for instance, if I increase the amount of audio DSP), then I get these kernel BUGs more frequently. If you want some more of these kernel BUG traces, just let me know -- I have lots of them.

Best regards,

Edgar

uname -a

returns

Linux omap 3.2.2-x4 #1 SMP Fri Feb 3 13:34:11 PST 2012 armv7l GNU/Linux

[ 5105.119262] ------------[ cut here ]------------        
[ 5105.127624] kernel BUG at arch/arm/mach-omap2/omap_l3_smx.c:186!               
[ 5105.137359] Internal error: Oops - undefined instruction: 0 [#1] SMP           
[ 5105.147460] Modules linked in: snd_seq_dummy snd_soc_twl4030 snd_soc_omap3beags
[ 5105.183959] CPU: 0    Not tainted  (3.2.2-x4 #1)                               
[ 5105.192474] PC is at omap3_l3_app_irq+0x44/0x11c                               
[ 5105.201019] LR is at handle_irq_event_percpu+0x6c/0x1e4                        
[ 5105.210174] pc : [<c0028498>]    lr : [<c009aeac>]    psr: 20000193            
[ 5105.210174] sp : ddcfde18  ip : de87d400  fp : 00000000                        
[ 5105.229522] r10: 00000000  r9 : 00000000  r8 : de805780                        
[ 5105.238677] r7 : ddcfded4  r6 : 00000000  r5 : 0000000a  r4 : 00400000         
[ 5105.249206] r3 : 00000000  r2 : 00400000  r1 : 00000000  r0 : 00400000         
[ 5105.259704] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user 
[ 5105.270965] Control: 10c5387d  Table: 9ea50019  DAC: 00000015                  
[ 5105.280700] Process pd (pid: 1986, stack limit = 0xddcfc2f8)                   
[ 5105.290344] Stack: (0xddcfde18 to 0xddcfe000)                                  
[ 5105.298553] de00:                                                       c0887f1
[ 5105.310791] de20: 00000000 0000000c fa200000 de878380 0000000a fa200000 ddcfdec
[ 5105.323059] de40: de805780 de878380 00535000 de805780 de8057d4 fa200000 ddcfde0
[ 5105.335266] de60: 00000040 00000000 00000000 c009b064 de805780 00000000 fa20000
[ 5105.347381] de80: 0000000a c009a868 0000000a c000dd5c bf0c410c bf0c4cb0 2000008
[ 5105.359588] dea0: 00000000 00000000 00000000 bf0c891c ddca9c00 c142d58c 0000000
[ 5105.371734] dec0: 00000000 00000040 00000000 00000000 00000280 ddcfdee8 bf0c410
[ 5105.383880] dee0: 20000013 ffffffff 00000040 00000000 c142d58c 01419fc8 000000c
[ 5105.396026] df00: 00080802 00000280 c142d500 c142d500 00000040 01419fc8 0000000
[ 5105.408172] df20: ddcfc000 00000000 000a0f70 bf0c4d84 bf0c31b0 01419fc8 bec7630
[ 5105.420318] df40: 400c4150 bf0c129c ddcfde48 00000000 01419fc8 00000040 bec7630
[ 5105.432464] df60: bec763fc 400c4150 00000009 c0113698 debd23c0 00000009 debd23c
[ 5105.444580] df80: 400c4150 c011371c 00000009 00000001 01419db8 01419e28 0000006
[ 5105.456665] dfa0: c000d624 c000d4a0 01419db8 01419e28 00000009 400c4150 bec763c
[ 5105.468780] dfc0: 01419db8 01419e28 00000000 00000036 00000001 00000000 004a9f0
[ 5105.480895] dfe0: 01419fc8 bec763f8 4014ad5f 40300d6c 60000010 00000009 0000000
[ 5105.493011] [<c0028498>] (omap3_l3_app_irq+0x44/0x11c) from [<c009aeac>] (hand)
[ 5105.506958] [<c009aeac>] (handle_irq_event_percpu+0x6c/0x1e4) from [<c009b064>)
[ 5105.520782] [<c009b064>] (handle_irq_event+0x40/0x60) from [<c009d7d0>] (handl)
[ 5105.533935] [<c009d7d0>] (handle_level_irq+0xd4/0x118) from [<c009a868>] (gene)
[ 5105.547332] [<c009a868>] (generic_handle_irq+0x20/0x30) from [<c000dd5c>] (han)
[ 5105.560058] [<c000dd5c>] (handle_IRQ+0x78/0xb8) from [<c058aa38>] (__irq_svc+0)
[ 5105.572113] [<c058aa38>] (__irq_svc+0x38/0xe0) from [<bf0c4cb0>] (snd_pcm_lib_)
[ 5105.586029] [<bf0c4cb0>] (snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]) from [<bf0)
[ 5105.601654] [<bf0c4d84>] (snd_pcm_lib_write+0x5c/0x64 [snd_pcm]) from [<bf0c12)
[ 5105.617706] [<bf0c129c>] (snd_pcm_playback_ioctl1+0x104/0x284 [snd_pcm]) from )
[ 5105.632659] [<c0113698>] (do_vfs_ioctl+0x2a0/0x2d8) from [<c011371c>] (sys_ioc)
[ 5105.645263] [<c011371c>] (sys_ioctl+0x4c/0x6c) from [<c000d4a0>] (ret_fast_sys)
[ 5105.657989] Code: e0000002 e0011003 e1904001 0a000002 (e7f001f2)               
[ 5105.668518] BUG: scheduling while atomic: pd/1986/0x00010000                   
[ 5105.678527] Modules linked in: snd_seq_dummy snd_soc_twl4030 snd_soc_omap3beags
[ 5105.716522]                                                                    
[ 5105.721984] Pid: 1986, comm:                   pd                              
[ 5105.730865] CPU: 0    Not tainted  (3.2.2-x4 #1)                               
[ 5105.739654] PC is at snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]                  
[ 5105.749633] LR is at snd_pcm_update_state+0xf4/0x10c [snd_pcm]                 
[ 5105.759643] pc : [<bf0c4cb0>]    lr : [<bf0c410c>]    psr: 20000013            
[ 5105.759674] sp : ddcfdee8  ip : 00000280  fp : 00000000                        
[ 5105.779449] r10: 00000000  r9 : 00000040  r8 : 00000000                        
[ 5105.788879] r7 : 00000040  r6 : 00000001  r5 : c142d58c  r4 : ddca9c00         
[ 5105.799682] r3 : bf0c891c  r2 : 00000000  r1 : 00000000  r0 : 00000000         
[ 5105.810455] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user  
[ 5105.821838] Control: 10c5387d  Table: 9ea50019  DAC: 00000015                  
[ 5105.831756] [<c001352c>] (unwind_backtrace+0x0/0xe0) from [<c0588358>] (__sche)
[ 5105.844787] [<c0588358>] (__schedule+0x70/0x638) from [<c058903c>] (schedule_t)
[ 5105.858062] [<c058903c>] (schedule_timeout+0x258/0x29c) from [<c05881ac>] (wai)
[ 5105.871856] [<c05881ac>] (wait_for_common+0xe4/0x18c) from [<c0452b24>] (omap_)
[ 5105.885772] [<c0452b24>] (omap_i2c_xfer_msg+0x1b4/0x274) from [<c0452c5c>] (om)
[ 5105.899414] [<c0452c5c>] (omap_i2c_xfer+0x78/0xc8) from [<c0450a70>] (i2c_tran)
[ 5105.912536] [<c0450a70>] (i2c_transfer+0xbc/0x110) from [<c03c75b4>] (twl_i2c_)
[ 5105.925659] [<c03c75b4>] (twl_i2c_read+0xe4/0x12c) from [<c038d528>] (twlreg_g)
[ 5105.938507] [<c038d528>] (twlreg_grp+0x18/0x24) from [<c038d564>] (twl4030reg_)
[ 5105.952056] [<c038d564>] (twl4030reg_is_enabled+0x8/0x14) from [<c0388980>] (_)
[ 5105.966674] [<c0388980>] (_regulator_is_enabled+0x1c/0x28) from [<c038aa9c>] ()
[ 5105.980987] sched: RT throttling activated                                     
[ 5105.989471] [<c038aa9c>] (_regulator_enable+0x38/0x26c) from [<c038c618>] (reg)
[ 5106.003448] [<c038c618>] (regulator_enable+0x34/0x60) from [<c0372568>] (omapd)
[ 5106.018310] [<c0372568>] (omapdss_dpi_display_enable+0x58/0x1a0) from [<c03841)
[ 5106.033355] [<c03841a0>] (panel_dvi_power_on+0x20/0x54) from [<c03841f4>] (pan)
[ 5106.047454] [<c03841f4>] (panel_dvi_resume+0x20/0x3c) from [<c0381780>] (omapf)
[ 5106.061065] [<c0381780>] (omapfb_blank+0xc8/0x174) from [<c0350368>] (fb_blank)
[ 5106.073913] [<c0350368>] (fb_blank+0x3c/0x68) from [<c0359ae8>] (fbcon_blank+0)
[ 5106.086761] [<c0359ae8>] (fbcon_blank+0x114/0x254) from [<c03a3a68>] (do_unbla)
[ 5106.100646] [<c03a3a68>] (do_unblank_screen+0x100/0x198) from [<c033cf98>] (bu)
[ 5106.114593] [<c033cf98>] (bust_spinlocks+0x20/0x44) from [<c0010c98>] (die+0x9)
[ 5106.127227] [<c0010c98>] (die+0x9c/0x128) from [<c00084a4>] (do_undefinstr+0x1)
[ 5106.139892] [<c00084a4>] (do_undefinstr+0x160/0x184) from [<c058ab28>] (__und_)
[ 5106.153015] Exception stack(0xddcfdd90 to 0xddcfddd8)                          
[ 5106.162536] dd80:                                     00400000 00000000 0040000
[ 5106.175292] dda0: 00400000 0000000a 00000000 ddcfded4 de805780 00000000 0000000
[ 5106.188018] ddc0: de87d400 ddcfde18 c009aeac c0028498 20000193 ffffffff        
[ 5106.199066] [<c058ab28>] (__und_svc+0x48/0x60) from [<c0028498>] (omap3_l3_app)
[ 5106.212219] [<c0028498>] (omap3_l3_app_irq+0x44/0x11c) from [<c009aeac>] (hand)
[ 5106.226806] [<c009aeac>] (handle_irq_event_percpu+0x6c/0x1e4) from [<c009b064>)
[ 5106.241241] [<c009b064>] (handle_irq_event+0x40/0x60) from [<c009d7d0>] (handl)
[ 5106.254913] [<c009d7d0>] (handle_level_irq+0xd4/0x118) from [<c009a868>] (gene)
[ 5106.268737] [<c009a868>] (generic_handle_irq+0x20/0x30) from [<c000dd5c>] (han)
[ 5106.281951] [<c000dd5c>] (handle_IRQ+0x78/0xb8) from [<c058aa38>] (__irq_svc+0)
[ 5106.294464] [<c058aa38>] (__irq_svc+0x38/0xe0) from [<bf0c4cb0>] (snd_pcm_lib_)
[ 5106.308837] [<bf0c4cb0>] (snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]) from [<bf0)
[ 5106.324951] [<bf0c4d84>] (snd_pcm_lib_write+0x5c/0x64 [snd_pcm]) from [<bf0c12)
[ 5106.341522] [<bf0c129c>] (snd_pcm_playback_ioctl1+0x104/0x284 [snd_pcm]) from )
[ 5106.356964] [<c0113698>] (do_vfs_ioctl+0x2a0/0x2d8) from [<c011371c>] (sys_ioc)
[ 5106.370086] [<c011371c>] (sys_ioctl+0x4c/0x6c) from [<c000d4a0>] (ret_fast_sys)
[ 5106.383361] ------------[ cut here ]------------                               
[ 5106.392608] WARNING: at kernel/timer.c:1011 del_timer_sync+0x34/0x54()         
[ 5106.403869] Modules linked in: snd_seq_dummy snd_soc_twl4030 snd_soc_omap3beags
[ 5106.443237] [<c001352c>] (unwind_backtrace+0x0/0xe0) from [<c0047fd8>] (warn_s)
[ 5106.457794] [<c0047fd8>] (warn_slowpath_common+0x4c/0x64) from [<c0048008>] (w)
[ 5106.472595] [<c0048008>] (warn_slowpath_null+0x18/0x1c) from [<c0056654>] (del)
[ 5106.486907] [<c0056654>] (del_timer_sync+0x34/0x54) from [<c0589044>] (schedul)
[ 5106.501159] [<c0589044>] (schedule_timeout+0x260/0x29c) from [<c05881ac>] (wai)
[ 5106.515594] [<c05881ac>] (wait_for_common+0xe4/0x18c) from [<c0452b24>] (omap_)
[ 5106.530181] [<c0452b24>] (omap_i2c_xfer_msg+0x1b4/0x274) from [<c0452c5c>] (om)
[ 5106.544525] [<c0452c5c>] (omap_i2c_xfer+0x78/0xc8) from [<c0450a70>] (i2c_tran)
[ 5106.558288] [<c0450a70>] (i2c_transfer+0xbc/0x110) from [<c03c75b4>] (twl_i2c_)
[ 5106.572021] [<c03c75b4>] (twl_i2c_read+0xe4/0x12c) from [<c038d528>] (twlreg_g)
[ 5106.585479] [<c038d528>] (twlreg_grp+0x18/0x24) from [<c038d564>] (twl4030reg_)
[ 5106.599548] [<c038d564>] (twl4030reg_is_enabled+0x8/0x14) from [<c0388980>] (_)
[ 5106.614624] [<c0388980>] (_regulator_is_enabled+0x1c/0x28) from [<c038aa9c>] ()
[ 5106.629486] [<c038aa9c>] (_regulator_enable+0x38/0x26c) from [<c038c618>] (reg)
[ 5106.643859] [<c038c618>] (regulator_enable+0x34/0x60) from [<c0372568>] (omapd)
[ 5106.659057] [<c0372568>] (omapdss_dpi_display_enable+0x58/0x1a0) from [<c03841)
[ 5106.674499] [<c03841a0>] (panel_dvi_power_on+0x20/0x54) from [<c03841f4>] (pan)
[ 5106.688903] [<c03841f4>] (panel_dvi_resume+0x20/0x3c) from [<c0381780>] (omapf)
[ 5106.702880] [<c0381780>] (omapfb_blank+0xc8/0x174) from [<c0350368>] (fb_blank)
[ 5106.716064] [<c0350368>] (fb_blank+0x3c/0x68) from [<c0359ae8>] (fbcon_blank+0)
[ 5106.729278] [<c0359ae8>] (fbcon_blank+0x114/0x254) from [<c03a3a68>] (do_unbla)
[ 5106.743530] [<c03a3a68>] (do_unblank_screen+0x100/0x198) from [<c033cf98>] (bu)
[ 5106.757873] [<c033cf98>] (bust_spinlocks+0x20/0x44) from [<c0010c98>] (die+0x9)
[ 5106.771301] [<c0010c98>] (die+0x9c/0x128) from [<c00084a4>] (do_undefinstr+0x1)
[ 5106.784545] [<c00084a4>] (do_undefinstr+0x160/0x184) from [<c058ab28>] (__und_)
[ 5106.798065] Exception stack(0xddcfdd90 to 0xddcfddd8)                          
[ 5106.808013] dd80:                                     00400000 00000000 0040000
[ 5106.821289] dda0: 00400000 0000000a 00000000 ddcfded4 de805780 00000000 0000000
[ 5106.834533] ddc0: de87d400 ddcfde18 c009aeac c0028498 20000193 ffffffff        
[ 5106.846069] [<c058ab28>] (__und_svc+0x48/0x60) from [<c0028498>] (omap3_l3_app)
[ 5106.859741] [<c0028498>] (omap3_l3_app_irq+0x44/0x11c) from [<c009aeac>] (hand)
[ 5106.874786] [<c009aeac>] (handle_irq_event_percpu+0x6c/0x1e4) from [<c009b064>)
[ 5106.889739] [<c009b064>] (handle_irq_event+0x40/0x60) from [<c009d7d0>] (handl)
[ 5106.904052] [<c009d7d0>] (handle_level_irq+0xd4/0x118) from [<c009a868>] (gene)
[ 5106.918579] [<c009a868>] (generic_handle_irq+0x20/0x30) from [<c000dd5c>] (han)
[ 5106.932434] [<c000dd5c>] (handle_IRQ+0x78/0xb8) from [<c058aa38>] (__irq_svc+0)
[ 5106.945495] [<c058aa38>] (__irq_svc+0x38/0xe0) from [<bf0c4cb0>] (snd_pcm_lib_)
[ 5106.960357] [<bf0c4cb0>] (snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]) from [<bf0)
[ 5106.977386] [<bf0c4d84>] (snd_pcm_lib_write+0x5c/0x64 [snd_pcm]) from [<bf0c12)
[ 5106.994354] [<bf0c129c>] (snd_pcm_playback_ioctl1+0x104/0x284 [snd_pcm]) from )
[ 5107.010162] [<c0113698>] (do_vfs_ioctl+0x2a0/0x2d8) from [<c011371c>] (sys_ioc)
[ 5107.023590] [<c011371c>] (sys_ioctl+0x4c/0x6c) from [<c000d4a0>] (ret_fast_sys)
[ 5107.037078] ---[ end trace 3647bd3b3c32fc05 ]---                               
[ 5107.046508] BUG: scheduling while atomic: pd/1986/0x00010000                   
[ 5107.056915] Modules linked in: snd_seq_dummy snd_soc_twl4030 snd_soc_omap3beags
[ 5107.095947]                                                                    
[ 5107.102081] Pid: 1986, comm:                   pd                              
[ 5107.111572] CPU: 0    Tainted: G        W     (3.2.2-x4 #1)                    
[ 5107.121917] PC is at snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]                  
[ 5107.132415] LR is at snd_pcm_update_state+0xf4/0x10c [snd_pcm]                 
[ 5107.142944] pc : [<bf0c4cb0>]    lr : [<bf0c410c>]    psr: 20000013            
[ 5107.142944] sp : ddcfdee8  ip : 00000280  fp : 00000000                        
[ 5107.163665] r10: 00000000  r9 : 00000040  r8 : 00000000                        
[ 5107.173492] r7 : 00000040  r6 : 00000001  r5 : c142d58c  r4 : ddca9c00         
[ 5107.184661] r3 : bf0c891c  r2 : 00000000  r1 : 00000000  r0 : 00000000         
[ 5107.195800] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user  
[ 5107.207550] Control: 10c5387d  Table: 9ea50019  DAC: 00000015                  
[ 5107.217773] [<c001352c>] (unwind_backtrace+0x0/0xe0) from [<c0588358>] (__sche)
[ 5107.231079] [<c0588358>] (__schedule+0x70/0x638) from [<c058903c>] (schedule_t)
[ 5107.244598] [<c058903c>] (schedule_timeout+0x258/0x29c) from [<c05881ac>] (wai)
[ 5107.258605] [<c05881ac>] (wait_for_common+0xe4/0x18c) from [<c0452b24>] (omap_)
[ 5107.272705] [<c0452b24>] (omap_i2c_xfer_msg+0x1b4/0x274) from [<c0452c5c>] (om)
[ 5107.286529] [<c0452c5c>] (omap_i2c_xfer+0x78/0xc8) from [<c0450a70>] (i2c_tran)
[ 5107.299774] [<c0450a70>] (i2c_transfer+0xbc/0x110) from [<c03c75b4>] (twl_i2c_)
[ 5107.313018] [<c03c75b4>] (twl_i2c_read+0xe4/0x12c) from [<c038d528>] (twlreg_g)
[ 5107.325958] [<c038d528>] (twlreg_grp+0x18/0x24) from [<c038d564>] (twl4030reg_)
[ 5107.339538] [<c038d564>] (twl4030reg_is_enabled+0x8/0x14) from [<c0388980>] (_)
[ 5107.354156] [<c0388980>] (_regulator_is_enabled+0x1c/0x28) from [<c038aa9c>] ()
[ 5107.369354] [<c038aa9c>] (_regulator_enable+0x38/0x26c) from [<c038c618>] (reg)
[ 5107.383361] [<c038c618>] (regulator_enable+0x34/0x60) from [<c0372568>] (omapd)
[ 5107.398284] [<c0372568>] (omapdss_dpi_display_enable+0x58/0x1a0) from [<c03841)
[ 5107.413330] [<c03841a0>] (panel_dvi_power_on+0x20/0x54) from [<c03841f4>] (pan)
[ 5107.427398] [<c03841f4>] (panel_dvi_resume+0x20/0x3c) from [<c0381780>] (omapf)
[ 5107.440979] [<c0381780>] (omapfb_blank+0xc8/0x174) from [<c0350368>] (fb_blank)
[ 5107.453796] [<c0350368>] (fb_blank+0x3c/0x68) from [<c0359ae8>] (fbcon_blank+0)
[ 5107.466613] [<c0359ae8>] (fbcon_blank+0x114/0x254) from [<c03a3a68>] (do_unbla)
[ 5107.480438] [<c03a3a68>] (do_unblank_screen+0x100/0x198) from [<c033cf98>] (bu)
[ 5107.494354] [<c033cf98>] (bust_spinlocks+0x20/0x44) from [<c0010c98>] (die+0x9)
[ 5107.506927] [<c0010c98>] (die+0x9c/0x128) from [<c00084a4>] (do_undefinstr+0x1)
[ 5107.519561] [<c00084a4>] (do_undefinstr+0x160/0x184) from [<c058ab28>] (__und_)
[ 5107.532653] Exception stack(0xddcfdd90 to 0xddcfddd8)                          
[ 5107.542144] dd80:                                     00400000 00000000 0040000
[ 5107.554931] dda0: 00400000 0000000a 00000000 ddcfded4 de805780 00000000 0000000
[ 5107.567626] ddc0: de87d400 ddcfde18 c009aeac c0028498 20000193 ffffffff        
[ 5107.578643] [<c058ab28>] (__und_svc+0x48/0x60) from [<c0028498>] (omap3_l3_app)
[ 5107.591766] [<c0028498>] (omap3_l3_app_irq+0x44/0x11c) from [<c009aeac>] (hand)
[ 5107.606262] [<c009aeac>] (handle_irq_event_percpu+0x6c/0x1e4) from [<c009b064>)
[ 5107.620727] [<c009b064>] (handle_irq_event+0x40/0x60) from [<c009d7d0>] (handl)
[ 5107.634429] [<c009d7d0>] (handle_level_irq+0xd4/0x118) from [<c009a868>] (gene)
[ 5107.648284] [<c009a868>] (generic_handle_irq+0x20/0x30) from [<c000dd5c>] (han)
[ 5107.661407] [<c000dd5c>] (handle_IRQ+0x78/0xb8) from [<c058aa38>] (__irq_svc+0)
[ 5107.673797] [<c058aa38>] (__irq_svc+0x38/0xe0) from [<bf0c4cb0>] (snd_pcm_lib_)
[ 5107.688079] [<bf0c4cb0>] (snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]) from [<bf0)
[ 5107.704101] [<bf0c4d84>] (snd_pcm_lib_write+0x5c/0x64 [snd_pcm]) from [<bf0c12)
[ 5107.720611] [<bf0c129c>] (snd_pcm_playback_ioctl1+0x104/0x284 [snd_pcm]) from )
[ 5107.735961] [<c0113698>] (do_vfs_ioctl+0x2a0/0x2d8) from [<c011371c>] (sys_ioc)
[ 5107.748992] [<c011371c>] (sys_ioctl+0x4c/0x6c) from [<c000d4a0>] (ret_fast_sys)
[ 5107.762145] ------------[ cut here ]------------                               
[ 5107.771331] WARNING: at kernel/timer.c:1011 del_timer_sync+0x34/0x54()         
[ 5107.782562] Modules linked in: snd_seq_dummy snd_soc_twl4030 snd_soc_omap3beags
[ 5107.821594] [<c001352c>] (unwind_backtrace+0x0/0xe0) from [<c0047fd8>] (warn_s)
[ 5107.836090] [<c0047fd8>] (warn_slowpath_common+0x4c/0x64) from [<c0048008>] (w)
[ 5107.850891] [<c0048008>] (warn_slowpath_null+0x18/0x1c) from [<c0056654>] (del)
[ 5107.865142] [<c0056654>] (del_timer_sync+0x34/0x54) from [<c0589044>] (schedul)
[ 5107.879364] [<c0589044>] (schedule_timeout+0x260/0x29c) from [<c05881ac>] (wai)
[ 5107.893768] [<c05881ac>] (wait_for_common+0xe4/0x18c) from [<c0452b24>] (omap_)
[ 5107.908264] [<c0452b24>] (omap_i2c_xfer_msg+0x1b4/0x274) from [<c0452c5c>] (om)
[ 5107.922515] [<c0452c5c>] (omap_i2c_xfer+0x78/0xc8) from [<c0450a70>] (i2c_tran)
[ 5107.936248] [<c0450a70>] (i2c_transfer+0xbc/0x110) from [<c03c75b4>] (twl_i2c_)
[ 5107.949951] [<c03c75b4>] (twl_i2c_read+0xe4/0x12c) from [<c038d528>] (twlreg_g)
[ 5107.963378] [<c038d528>] (twlreg_grp+0x18/0x24) from [<c038d564>] (twl4030reg_)
[ 5107.977416] [<c038d564>] (twl4030reg_is_enabled+0x8/0x14) from [<c0388980>] (_)
[ 5107.992492] [<c0388980>] (_regulator_is_enabled+0x1c/0x28) from [<c038aa9c>] ()
[ 5108.007354] [<c038aa9c>] (_regulator_enable+0x38/0x26c) from [<c038c618>] (reg)
[ 5108.021728] [<c038c618>] (regulator_enable+0x34/0x60) from [<c0372568>] (omapd)
[ 5108.036956] [<c0372568>] (omapdss_dpi_display_enable+0x58/0x1a0) from [<c03841)
[ 5108.052368] [<c03841a0>] (panel_dvi_power_on+0x20/0x54) from [<c03841f4>] (pan)
[ 5108.066802] [<c03841f4>] (panel_dvi_resume+0x20/0x3c) from [<c0381780>] (omapf)
[ 5108.080749] [<c0381780>] (omapfb_blank+0xc8/0x174) from [<c0350368>] (fb_blank)
[ 5108.093963] [<c0350368>] (fb_blank+0x3c/0x68) from [<c0359ae8>] (fbcon_blank+0)
[ 5108.107177] [<c0359ae8>] (fbcon_blank+0x114/0x254) from [<c03a3a68>] (do_unbla)
[ 5108.121398] [<c03a3a68>] (do_unblank_screen+0x100/0x198) from [<c033cf98>] (bu)
[ 5108.135833] [<c033cf98>] (bust_spinlocks+0x20/0x44) from [<c0010c98>] (die+0x9)
[ 5108.148803] [<c0010c98>] (die+0x9c/0x128) from [<c00084a4>] (do_undefinstr+0x1)
[ 5108.161895] [<c00084a4>] (do_undefinstr+0x160/0x184) from [<c058ab28>] (__und_)
[ 5108.175384] Exception stack(0xddcfdd90 to 0xddcfddd8)                          
[ 5108.185333] dd80:                                     00400000 00000000 0040000
[ 5108.198577] dda0: 00400000 0000000a 00000000 ddcfded4 de805780 00000000 0000000
[ 5108.211822] ddc0: de87d400 ddcfde18 c009aeac c0028498 20000193 ffffffff        
[ 5108.223358] [<c058ab28>] (__und_svc+0x48/0x60) from [<c0028498>] (omap3_l3_app)
[ 5108.237030] [<c0028498>] (omap3_l3_app_irq+0x44/0x11c) from [<c009aeac>] (hand)
[ 5108.252746] [<c009aeac>] (handle_irq_event_percpu+0x6c/0x1e4) from [<c009b064>)
[ 5108.267730] [<c009b064>] (handle_irq_event+0x40/0x60) from [<c009d7d0>] (handl)
[ 5108.282043] [<c009d7d0>] (handle_level_irq+0xd4/0x118) from [<c009a868>] (gene)
[ 5108.296569] [<c009a868>] (generic_handle_irq+0x20/0x30) from [<c000dd5c>] (han)
[ 5108.310455] [<c000dd5c>] (handle_IRQ+0x78/0xb8) from [<c058aa38>] (__irq_svc+0)
[ 5108.323486] [<c058aa38>] (__irq_svc+0x38/0xe0) from [<bf0c4cb0>] (snd_pcm_lib_)
[ 5108.338378] [<bf0c4cb0>] (snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]) from [<bf0)
[ 5108.354888] [<bf0c4d84>] (snd_pcm_lib_write+0x5c/0x64 [snd_pcm]) from [<bf0c12)
[ 5108.371795] [<bf0c129c>] (snd_pcm_playback_ioctl1+0x104/0x284 [snd_pcm]) from )
[ 5108.387603] [<c0113698>] (do_vfs_ioctl+0x2a0/0x2d8) from [<c011371c>] (sys_ioc)
[ 5108.401031] [<c011371c>] (sys_ioctl+0x4c/0x6c) from [<c000d4a0>] (ret_fast_sys)
[ 5108.414520] ---[ end trace 3647bd3b3c32fc06 ]---                               
[ 5108.423950] BUG: scheduling while atomic: pd/1986/0x00010000                   
[ 5108.434387] Modules linked in: snd_seq_dummy snd_soc_twl4030 snd_soc_omap3beags
[ 5108.473297]                                                                    
[ 5108.479431] Pid: 1986, comm:                   pd                              
[ 5108.488891] CPU: 0    Tainted: G        W     (3.2.2-x4 #1)                    
[ 5108.499237] PC is at snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]                  
[ 5108.509765] LR is at snd_pcm_update_state+0xf4/0x10c [snd_pcm]                 
[ 5108.520263] pc : [<bf0c4cb0>]    lr : [<bf0c410c>]    psr: 20000013            
[ 5108.520263] sp : ddcfdee8  ip : 00000280  fp : 00000000                        
[ 5108.540985] r10: 00000000  r9 : 00000040  r8 : 00000000                        
[ 5108.550811] r7 : 00000040  r6 : 00000001  r5 : c142d58c  r4 : ddca9c00         
[ 5108.562011] r3 : bf0c891c  r2 : 00000000  r1 : 00000000  r0 : 00000000         
[ 5108.573120] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user  
[ 5108.584869] Control: 10c5387d  Table: 9ea50019  DAC: 00000015                  
[ 5108.595123] [<c001352c>] (unwind_backtrace+0x0/0xe0) from [<c0588358>] (__sche)
[ 5108.608367] [<c0588358>] (__schedule+0x70/0x638) from [<c058903c>] (schedule_t)
[ 5108.621917] [<c058903c>] (schedule_timeout+0x258/0x29c) from [<c05881ac>] (wai)
[ 5108.635894] [<c05881ac>] (wait_for_common+0xe4/0x18c) from [<c0452b24>] (omap_)
[ 5108.649993] [<c0452b24>] (omap_i2c_xfer_msg+0x1b4/0x274) from [<c0452c5c>] (om)
[ 5108.663787] [<c0452c5c>] (omap_i2c_xfer+0x78/0xc8) from [<c0450a70>] (i2c_tran)
[ 5108.677062] [<c0450a70>] (i2c_transfer+0xbc/0x110) from [<c03c75b4>] (twl_i2c_)
[ 5108.690277] [<c03c75b4>] (twl_i2c_read+0xe4/0x12c) from [<c038dd24>] (twl4030r)
[ 5108.703857] [<c038dd24>] (twl4030reg_enable+0x1c/0x4c) from [<c038ab68>] (_reg)
[ 5108.718017] [<c038ab68>] (_regulator_enable+0x104/0x26c) from [<c038c618>] (re)
[ 5108.732086] [<c038c618>] (regulator_enable+0x34/0x60) from [<c0372568>] (omapd)
[ 5108.746917] [<c0372568>] (omapdss_dpi_display_enable+0x58/0x1a0) from [<c03841)
[ 5108.761932] [<c03841a0>] (panel_dvi_power_on+0x20/0x54) from [<c03841f4>] (pan)
[ 5108.775909] [<c03841f4>] (panel_dvi_resume+0x20/0x3c) from [<c0381780>] (omapf)
[ 5108.789459] [<c0381780>] (omapfb_blank+0xc8/0x174) from [<c0350368>] (fb_blank)
[ 5108.802307] [<c0350368>] (fb_blank+0x3c/0x68) from [<c0359ae8>] (fbcon_blank+0)
[ 5108.815124] [<c0359ae8>] (fbcon_blank+0x114/0x254) from [<c03a3a68>] (do_unbla)
[ 5108.828918] [<c03a3a68>] (do_unblank_screen+0x100/0x198) from [<c033cf98>] (bu)
[ 5108.842803] [<c033cf98>] (bust_spinlocks+0x20/0x44) from [<c0010c98>] (die+0x9)
[ 5108.855346] [<c0010c98>] (die+0x9c/0x128) from [<c00084a4>] (do_undefinstr+0x1)
[ 5108.867950] [<c00084a4>] (do_undefinstr+0x160/0x184) from [<c058ab28>] (__und_)
[ 5108.881042] Exception stack(0xddcfdd90 to 0xddcfddd8)                          
[ 5108.890533] dd80:                                     00400000 00000000 0040000
[ 5108.903350] dda0: 00400000 0000000a 00000000 ddcfded4 de805780 00000000 0000000
[ 5108.916076] ddc0: de87d400 ddcfde18 c009aeac c0028498 20000193 ffffffff        
[ 5108.927124] [<c058ab28>] (__und_svc+0x48/0x60) from [<c0028498>] (omap3_l3_app)
[ 5108.940277] [<c0028498>] (omap3_l3_app_irq+0x44/0x11c) from [<c009aeac>] (hand)
[ 5108.954772] [<c009aeac>] (handle_irq_event_percpu+0x6c/0x1e4) from [<c009b064>)
[ 5108.969207] [<c009b064>] (handle_irq_event+0x40/0x60) from [<c009d7d0>] (handl)
[ 5108.982971] [<c009d7d0>] (handle_level_irq+0xd4/0x118) from [<c009a868>] (gene)
[ 5108.996948] [<c009a868>] (generic_handle_irq+0x20/0x30) from [<c000dd5c>] (han)
[ 5109.010223] [<c000dd5c>] (handle_IRQ+0x78/0xb8) from [<c058aa38>] (__irq_svc+0)
[ 5109.022613] [<c058aa38>] (__irq_svc+0x38/0xe0) from [<bf0c4cb0>] (snd_pcm_lib_)
[ 5109.036804] [<bf0c4cb0>] (snd_pcm_lib_write1+0x398/0x3b8 [snd_pcm]) from [<bf0)
[ 5109.052703] [<bf0c4d84>] (snd_pcm_lib_write+0x5c/0x64 [snd_pcm]) from [<bf0c12)
[ 5109.069122] [<bf0c129c>] (snd_pcm_playback_ioctl1+0x104/0x284 [snd_pcm]) from )
[ 5109.084411] [<c0113698>] (do_vfs_ioctl+0x2a0/0x2d8) from [<c011371c>] (sys_ioc)
[ 5109.097381] [<c011371c>] (sys_ioctl+0x4c/0x6c) from [<c000d4a0>] (ret_fast_sys)

Hi,

Can you please raise this as a new query? This will help the audio driver expert to help you with this problem. The current thread discussion is about SGX(graphics).

Please close this query if the graphics(SGX) related issue is resolved.

Thanks,

Prathap.

Hi,

Sorry I thought it was related -- the kernel is stopping at the same line in omap_l3_smx.c. It is unobvious to me that an application can crash the L3 bus, so I thought maybe the problem was with the bus driver omap_l3_smx.c. I will re-post the question as a new query.

Best,

Edgar