Question regarding :scheduling while atomic"

Question regarding :scheduling while atomic"

[Reza Salehi]

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Hi all,


I am getting kernel oops "  scheduling while atomic: watchdog or swapper" it doesn't make kernel to crash but i am sure it is not a good sign..
I am not holding any spin lock at all.
I am wonder what would be best approach to debug this issue? What tool is appropriate for debugging? 

You can see the kernel oops as attached files.

Thanks for your help in advance. 

Best Regards,
Reza



      

[-- Attachment #2: debug --]
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ra    : 8006c3a4 cpu_idle+0x2c/0x54
Status: 1000d403    KERNEL EXL IE
Cause : 40808000
PrId  : 00019374 (MIPS 24Kc)
BUG: scheduling while atomic: swapper/0/0x10000100
Modules linked in: evdev vrw_wsmp(P) vrw_wme(P) vrw_gpl wlan_wave_umlme(P) ath_pci wlan_xauth wlan_wep wlan_tkip wlaneCpu 0
$ 0   : 00000000 80300000 80060a00 00c72c86
$ 4   : 00000000 00c72c86 802c5ba8 80950c5c
$ 8   : 00000000 163d4878 663e94d1 00000000
$12   : 00000000 00000000 802bfed0 81c1daac
$16   : 80310000 802fe6be 80300000 80300000
$20   : 807f0000 2c000000 00e42c00 00000000
$24   : 00000002 80070938
$28   : 802be000 802bff80 000000e4 8006c3a4
Hi    : 0027d195
Lo    : 663e94d1
epc   : 80060a20 r4k_wait+0x20/0x40
    Tainted: P
ra    : 8006c3a4 cpu_idle+0x2c/0x54
Status: 1000d403    KERNEL EXL IE
Cause : 40808000
PrId  : 00019374 (MIPS 24Kc)
eWAVE%