Tool/software: Linux
Using SDK 7.0, Linux kernel 3.12, when hot unplugging a USB Wi-Fi adapter the kernel occasionally panics. Here is the output of the panic:
root@Node00b01973d7b4:~# [ 5679.169443] Unable to handle kernel paging request at virtual address fffffff8
[ 5679.177038] pgd = c0004000
[ 5679.179871] [fffffff8] *pgd=8fcf2821, *pte=00000000, *ppte=00000000
[ 5679.186467] Internal error: Oops: 17 [#1] ARM
[ 5679.191031] Modules linked in: stkChk cmv apm rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 usb_f_ecm g_ether usb_f_rndis u_rndis libcomposite u_ether cfg80211 musb_dsps musb_hdrc snd_soc_audtel snd_soc_cpld snd_soc_davinci_mcasp snd_soc_davinci snd_soc_gcpld snd_soc_gaudtel snd_soc_core regmap_spi serial9bitdriver musb_am335x snd_pcm snd_timer snd_page_alloc snd_compress snd soundcore
[ 5679.228160] CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.10-Edwards.00.00.17-ti2013.12.01 #2
[ 5679.237003] task: c07dc098 ti: c07d0000 task.ti: c07d0000
[ 5679.242713] PC is at musb_g_rx+0x88/0x128 [musb_hdrc]
[ 5679.248014] LR is at musb_interrupt+0xa4/0x95c [musb_hdrc]
[ 5679.253766] pc : [<bf1a3cdc>] lr : [<bf19dbb4>] psr: 200f0193
[ 5679.253766] sp : c07d1d80 ip : 00000000 fp : c07d1da4
[ 5679.265801] r10: d1a56d26 r9 : 00000000 r8 : 00000019
[ 5679.271275] r7 : 00000000 r6 : cc12c4b8 r5 : cc12c010 r4 : cc12c470
[ 5679.278116] r3 : d1a56d20 r2 : 00002000 r1 : ffffffcc r0 : ffffffcc
[ 5679.284962] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 5679.292711] Control: 10c5387d Table: 8c294019 DAC: 00000017
[ 5679.298733] Process swapper (pid: 0, stack limit = 0xc07d0240)
[ 5679.304844] Stack: (0xc07d1d80 to 0xc07d2000)
[ 5679.309413] 1d80: 00000001 00000002 cc12c010 00000001 00000019 00000000 c07d1dec c07d1da8
[ 5679.317987] 1da0: bf19dbb4 bf1a3c60 0003a980 00000000 a66e0000 0098944a a6b0e000 0098944a
[ 5679.326561] 1dc0: 2a9bfc00 bf1b0128 cc12c010 00000000 d1a58800 a00f0193 00000001 cd7bb840
[ 5679.335133] 1de0: c07d1e24 c07d1df0 bf1af970 bf19db1c 0000052a 00000000 c07d1e54 cc56eb00
[ 5679.343703] 1e00: 00000023 00000000 00000000 00000023 c085e695 cd005340 c07d1e5c c07d1e28
[ 5679.352279] 1e20: c007162c bf1af7b8 c007ec54 c0078b28 00000001 cd005340 00000023 00000000
[ 5679.360852] 1e40: 00000023 00000000 413fc082 c085e693 c07d1e74 c07d1e60 c00717c0 c00715e4
[ 5679.369428] 1e60: 00024000 cd005340 c07d1e8c c07d1e78 c0073b78 c007179c c0073af0 00000023
[ 5679.378001] 1e80: c07d1ea4 c07d1e90 c0070f34 c0073afc 00000110 c082e874 c07d1ec4 c07d1ea8
[ 5679.386574] 1ea0: c00154e0 c0070f18 00000080 fa200000 c07d1ee8 c085f56c c07d1ee4 c07d1ec8
[ 5679.395149] 1ec0: c000879c c00154b4 c0452fa0 200f0013 ffffffff c07d1f1c c07d1f5c c07d1ee8
[ 5679.403722] 1ee0: c05a2580 c0008740 c07d1f30 3b9aca00 00701d81 0000052a 34d8f77f 0000052a
[ 5679.412296] 1f00: c084bbb8 00000001 00000000 413fc082 c085e693 c07d1f5c 0000001a c07d1f30
[ 5679.420869] 1f20: c00779a8 c0452fa0 200f0013 ffffffff 35491500 0000052a 00000000 c07df528
[ 5679.429441] 1f40: c084bbb8 00000001 c07df528 c08901c4 c07d1f84 c07d1f60 c04530d8 c0452f50
[ 5679.438013] 1f60: 00000000 c07d0000 00000000 c07d8104 c085e693 00000001 c07d1f94 c07d1f88
[ 5679.446591] 1f80: c00156b0 c0453040 c07d1fac c07d1f98 c0070df0 c00156ac 00000000 c0aabd80
[ 5679.455165] 1fa0: c07d1fbc c07d1fb0 c0598d50 c0070da4 c07d1ff4 c07d1fc0 c0778a04 c0598cf8
[ 5679.463738] 1fc0: ffffffff ffffffff c0778544 00000000 00000000 c07b46f0 10c53c7d c07d80a8
[ 5679.472314] 1fe0: c07b46ec c07dd138 00000000 c07d1ff8 80008070 c07787b4 00000000 00000000
[ 5679.480884] Backtrace:
[ 5679.483478] [<bf1a3c54>] (musb_g_rx+0x0/0x128 [musb_hdrc]) from [<bf19dbb4>] (musb_interrupt+0xa4/0x95c [musb_hdrc])
[ 5679.494530] [<bf19db10>] (musb_interrupt+0x0/0x95c [musb_hdrc]) from [<bf1af970>] (dsps_interrupt+0x1c4/0x2dc [musb_dsps])
[ 5679.506126] [<bf1af7ac>] (dsps_interrupt+0x0/0x2dc [musb_dsps]) from [<c007162c>] (handle_irq_event_percpu+0x54/0x1b8)
[ 5679.517346] [<c00715d8>] (handle_irq_event_percpu+0x0/0x1b8) from [<c00717c0>] (handle_irq_event+0x30/0x40)
[ 5679.527562] [<c0071790>] (handle_irq_event+0x0/0x40) from [<c0073b78>] (handle_level_irq+0x88/0xdc)
[ 5679.537044] r4:cd005340 r3:00024000
[ 5679.540802] [<c0073af0>] (handle_level_irq+0x0/0xdc) from [<c0070f34>] (generic_handle_irq+0x28/0x38)
[ 5679.550461] r4:00000023 r3:c0073af0
[ 5679.554233] [<c0070f0c>] (generic_handle_irq+0x0/0x38) from [<c00154e0>] (handle_IRQ+0x38/0x8c)
[ 5679.563350] r4:c082e874 r3:00000110
[ 5679.567108] [<c00154a8>] (handle_IRQ+0x0/0x8c) from [<c000879c>] (omap3_intc_handle_irq+0x68/0x7c)
[ 5679.576499] r6:c085f56c r5:c07d1ee8 r4:fa200000 r3:00000080
[ 5679.582460] [<c0008734>] (omap3_intc_handle_irq+0x0/0x7c) from [<c05a2580>] (__irq_svc+0x40/0x54)
[ 5679.591759] Exception stack(0xc07d1ee8 to 0xc07d1f30)
[ 5679.597052] 1ee0: c07d1f30 3b9aca00 00701d81 0000052a 34d8f77f 0000052a
[ 5679.605624] 1f00: c084bbb8 00000001 00000000 413fc082 c085e693 c07d1f5c 0000001a c07d1f30
[ 5679.614195] 1f20: c00779a8 c0452fa0 200f0013 ffffffff
[ 5679.619486] r7:c07d1f1c r6:ffffffff r5:200f0013 r4:c0452fa0
[ 5679.625445] [<c0452f44>] (cpuidle_enter_state+0x0/0xf0) from [<c04530d8>] (cpuidle_idle_call+0xa4/0x148)
[ 5679.635382] r7:c08901c4 r6:c07df528 r5:00000001 r4:c084bbb8
[ 5679.641334] [<c0453034>] (cpuidle_idle_call+0x0/0x148) from [<c00156b0>] (arch_cpu_idle+0x10/0x4c)
[ 5679.650725] r8:00000001 r7:c085e693 r6:c07d8104 r5:00000000 r4:c07d0000
r3:00000000
[ 5679.658959] [<c00156a0>] (arch_cpu_idle+0x0/0x4c) from [<c0070df0>] (cpu_startup_entry+0x58/0xf4)
[ 5679.668273] [<c0070d98>] (cpu_startup_entry+0x0/0xf4) from [<c0598d50>] (rest_init+0x64/0x7c)
[ 5679.677206] r7:c0aabd80 r3:00000000
[ 5679.680969] [<c0598cec>] (rest_init+0x0/0x7c) from [<c0778a04>] (start_kernel+0x25c/0x2a8)
[ 5679.689637] [<c07787a8>] (start_kernel+0x0/0x2a8) from [<80008070>] (0x80008070)
[ 5679.697389] Code: e3c22004 e283a006 e6ff2072 e1ca20b0 (e51c8008)
[ 5679.703784] ---[ end trace 3cb42141a175ef8a ]---
[ 5679.708619] Kernel panic - not syncing: Fatal exception in interrupt
