Oops in 2.5.46 (snd-usb-audio)

Oops in 2.5.46 (snd-usb-audio)

[Duncan Sands]

The usb subsystem has been pretty unstable lately, so this oops
may not be the fault of snd-usb-audio.

Duncan.

drivers/usb/core/usb.c: deregistering driver snd-usb-audio
Unable to handle kernel paging request at virtual address cc8b4278
 printing eip:
cc8b4278
*pde = 0be81067
*pte = 00000000
Oops: 0000
r128 snd-timer snd-rawmidi snd-seq-device snd-ac97-codec snd usbtest uhci-hcd usbcore nls_iso8859-1 nls_cp437 vfat fat rtc  
CPU:    0
EIP:    0060:[<cc8b4278>]    Not tainted
EFLAGS: 00010286
EIP is at E __insmod_snd-timer_S.data_L216+0xb038/0xd8 [snd-timer]
eax: cc8b4278   ebx: cbd5e1a0   ecx: cc8a9258   edx: cc8a9244
esi: cbd5e280   edi: cbd5e1a0   ebp: cc8a9258   esp: cb4f9f60
ds: 0068   es: 0068   ss: 0068
Process rmmod (pid: 844, threadinfo=cb4f8000 task=cb6b60a0)
Stack: cc8a6db2 cbd5e1a0 cc8a9258 cc8a6f63 cbd5e1a0 cbd5e178 cc8a6000 ca0e2000 
       cc8a6000 cc8a7e20 cbd5e1a0 fffffff0 c01176c7 fffffff0 cc8a6000 ca0e2000 
       bfffed98 c0116af0 cc8a6000 00000000 cb4f8000 00000001 bfffed98 bfffed98 
Call Trace:
 [<cc8a6db2>] snd_timer_free+0x12/0x24 [snd-timer]
 [<cc8a9258>] register_mutex+0x0/0x14 [snd-timer]
 [<cc8a6f63>] snd_timer_unregister+0x93/0x9c [snd-timer]
 [<cc8a7e20>] cleanup_module+0x28/0x62 [snd-timer]
 [<c01176c7>] free_module+0x17/0xc0
 [<c0116af0>] sys_delete_module+0x11c/0x274
 [<c0108857>] syscall_call+0x7/0xb

Code:  Bad EIP value.
 <3>drivers not released (1)


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Re: Oops in 2.5.46 (snd-usb-audio)

[Takashi Iwai]

At Tue, 5 Nov 2002 10:06:45 +0100,
Duncan Sands wrote:
> 
> The usb subsystem has been pretty unstable lately, so this oops
> may not be the fault of snd-usb-audio.

looks like there is a bug in snd-timer.  i got another similar report
causing the oops at the same point.  but the culprit could be at a
different place, of course... 


Takashi


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