Crash During Operation

[Dan Williams]

On Mon, 2008-11-24 at 15:14 -0500, Dave Kroetsch wrote:
> Hi there...
> 
> Running the latest code out of the wireless-testing git, we're having 
> very intermittent crashes of the wifi driver.  This is a 8385 CF module, 
> running on an ARM core.

Any idea what the hardware revision of the 8385 is?  It'll be on the
baseband chip in the 3rd row of numbers.

dan

> Anyone got any suggestions of what to look at?  Nothing else interesting 
> in the logs.  Has anyone else seen this before?
> 
> Thanks,
> 	Dave
> 
> Jan 1 04:37:25 scout user.info kernel: [16642.000000] NETDEV WATCHDOG: 
> eth1: transmit timed out
> Jan 1 04:37:25 scout user.err kernel: [16642.000000] libertas: tx watch 
> dog timeout
> Jan 1 04:37:25 scout user.alert kernel: [16642.000000] Unable to handle 
> kernel NULL pointer dereference at virtual address 00000000
> Jan 1 04:37:25 scout user.alert kernel: [16642.000000] pgd = c0004000
> Jan 1 04:37:25 scout user.alert kernel: [16642.000000] [00000000] 
> *pgd=00000000
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Internal error: 
> Oops: 817 [#1] PREEMPT
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Modules linked in: 
> n920t_net(F) n920t_dma libertas_cs pcmcia firmware_class mx31ads_pcmcia 
> pcmcia_core libertas
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] CPU: 0 Tainted: GF 
> (2.6.22.6 #635)
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] PC is at 
> if_cs_host_to_card+0x58/0x178 [libertas_cs]
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] LR is at 
> lbs_thread+0x464/0x5a8 [libertas]
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] pc : [<bf037628>] 
> lr : [<bf001d44>] psr: 60000193
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] sp : c2013f70 ip : 
> c2013f98 fp : c2013f94
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] r10: 00000000 r9 : 
> 00000000 r8 : 00000001
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] r7 : c27c05b0 r6 : 
> 00000000 r5 : 0000024a r4 : c2f86f00
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] r3 : 00000404 r2 : 
> 00000125 r1 : c27c05b0 r0 : c27c03a0
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Flags: nZCv IRQs 
> off FIQs on Mode SVC_32 Segment kernel
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Control: 00e5387f 
> Table: 82a34000 DAC: 00000017
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Process lbs_main 
> (pid: 1652, stack limit = 0xc2012258)
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Stack: (0xc2013f70 
> to 0xc2014000)
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] 3f60: c27c03a4 
> c27c03a0 00000000 c2012000
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] 3f80: 00000001 
> 00001d54 c2013fd4 c2013f98 bf001d44 bf0375dc 00000000 c2c58580
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] 3fa0: c004013c 
> 00100100 00200200 00000004 c2012000 c27c0000 bf0018e0 00000000
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] 3fc0: 00000000 
> 00000000 c2013ff4 c2013fd8 c005941c bf0018ec 00000000 00000000
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] 3fe0: 00000000 
> 00000000 00000000 c2013ff8 c0046f00 c00593cc 00000000 00000000
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Backtrace:
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] [<bf0375d0>] 
> (if_cs_host_to_card+0x0/0x178 [libertas_cs]) from [<bf001d44>] 
> (lbs_thread+0x464/0x5a8 [libertas])
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] r8:00001d54 
> r7:00000001 r6:c2012000 r5:00000000 r4:c27c03a0
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] [<bf0018e0>] 
> (lbs_thread+0x0/0x5a8 [libertas]) from [<c005941c>] (kthread+0x5c/0x94)
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] [<c00593c0>] 
> (kthread+0x0/0x94) from [<c0046f00>] (do_exit+0x0/0x8e8)
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] r6:00000000 
> r5:00000000 r4:00000000
> Jan 1 04:37:25 scout user.warn kernel: [16642.000000] Code: e5943008 
> e1a020a5 e1d332b0 e3130001 (05866000)
> Jan 1 04:37:25 scout user.info kernel: [16642.190000] note: 
> lbs_main[1652] exited with preempt_count 1
> 
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