ath9k Driver crash

[Singh, Gaurav]

Hi,

Setup info:

Linux: mips le, 2.6.29 on ViXS XC4200 SoC
Ath9k from compat-wireless-3.6.8-1-snpc
wpa_supplicant 2.0

Only using wpa_supplicant, no network-manager etc.

I see a system reboot after following (or similar) (formatted) logs:

[Tue Oct 22 19:03:39.828 2013] Debug: Monitor Message :  <3>CTRL-EVENT-BSS-ADDED 89 08:cc:68:5e:d7:41 
[Tue Oct 22 19:03:39.829 2013] Debug: Monitor Message :  <3>CTRL-EVENT-SCAN-RESULTS  
[Tue Oct 22 19:03:39.865 2013] Debug: Monitor Message :  <3>WPS-AP-AVAILABLE-PBC  
[Tue Oct 22 19:03:39.871 2013] Debug: Monitor Message :  <3>SME: Trying to authenticate with 00:23:69:3b:77:9a (SSID='STB Lease Line 1' freq=2422 MHz) 
[Tue Oct 22 19:03:39.872 2013] Debug: Monitor Message :  <3>Trying to associate with 00:23:69:3b:77:9a (SSID='STB Lease Line 1' freq=2422 MHz) 
[Tue Oct 22 19:03:40.740 2013] irq 7: nobody cared (try booting with the "irqpoll" option)
[Tue Oct 22 19:03:40.746 2013] MIPS5_INTERRUPT 0x00000000
[Tue Oct 22 19:03:40.756 2013] MIPS5_INTERRUPT1 0x00000004
[Tue Oct 22 19:03:40.764 2013] PPC_INT_STATUS 0x01000000 MASK 0x063000c2
[Tue Oct 22 19:03:40.764 2013] 
[Tue Oct 22 19:03:40.764 2013] Call Trace:
[Tue Oct 22 19:03:40.764 2013] [<900484e4>] dump_stack+0x8/0x34
[Tue Oct 22 19:03:40.772 2013] [<9009af9c>] __report_bad_irq+0xb4/0x158
[Tue Oct 22 19:03:40.773 2013] [<9009b1b4>] note_interrupt+0x174/0x23c
[Tue Oct 22 19:03:40.773 2013] [<9009b934>] handle_percpu_irq+0xa8/0xcc
[Tue Oct 22 19:03:40.800 2013] [<9004b488>] xcode_ic_dispatch_pci+0x30/0x40
[Tue Oct 22 19:03:40.801 2013] [<9004002c>] ret_from_irq+0x0/0x4
[Tue Oct 22 19:03:40.832 2013] [<90072ec0>] __do_softirq+0x60/0x130
[Tue Oct 22 19:03:40.832 2013] [<90072ffc>] do_softirq+0x6c/0x74
[Tue Oct 22 19:03:40.832 2013] [<9004002c>] ret_from_irq+0x0/0x4
[Tue Oct 22 19:03:40.832 2013] [<90069de8>] finish_task_switch+0xc0/0x178
[Tue Oct 22 19:03:40.833 2013] [<90048dcc>] schedule+0x300/0x440
[Tue Oct 22 19:03:40.833 2013] [<9009125c>] futex_wait+0x43c/0x4a4
[Tue Oct 22 19:03:40.833 2013] [<9009284c>] do_futex+0x120/0x9c8
[Tue Oct 22 19:03:40.833 2013] [<90093180>] sys_futex+0x8c/0x17c
[Tue Oct 22 19:03:40.833 2013] [<90041d04>] stack_done+0x20/0x3c
[Tue Oct 22 19:03:40.861 2013] 
[Tue Oct 22 19:03:40.861 2013] handlers:
[Tue Oct 22 19:03:40.861 2013] [<c6b8ff74>] (ath_isr+0x0/0x2d0 [ath9k])
[Tue Oct 22 19:03:40.861 2013] Disabling IRQ #7
[Tue Oct 22 19:03:43.278 2013]

Sometimes, a bunch of similar blocks of logs print together.

I am not sure what's causing this. *Any* pointers would be helpful. 

I am no expert in wireless tech, but am tasked with implementing basic wifi feature-set  for the product.

Thanks and Regards
-Gaurav