Re: kernel BUG at /usr/src/linux-2.5.37/include/asm/spinlock.h:123!

[Bob Miller]

On Sun, Sep 22, 2002 at 10:25:48AM +0300, Mika Liljeberg wrote:
> This happened on 2.5.37 with KDE artsd and OSS sound drivers.
> 
> 	MikaL
> 
> Sep 21 22:12:10 devil kernel: eip: c02471a0
> Sep 21 22:12:10 devil kernel: kernel BUG at /usr/src/linux-2.5.37/include/asm/spinlock.h:123!
> Sep 21 22:12:10 devil kernel: invalid operand: 0000
> Sep 21 22:12:10 devil kernel: CPU:    1
> Sep 21 22:12:10 devil kernel: EIP:    0060:[dma_ioctl+920/2634]    Not tainted
> Sep 21 22:12:10 devil kernel: EFLAGS: 00210082
> Sep 21 22:12:10 devil kernel: eax: 0000000e   ebx: 40045010   ecx: d2a87e70   edx: c0368800
> Sep 21 22:12:10 devil kernel: esi: 40045038   edi: d98220fc   ebp: 40045038   esp: d2a87f00
> Sep 21 22:12:10 devil kernel: ds: 0068   es: 0068   ss: 0068
> Sep 21 22:12:10 devil kernel: Process artsd (pid: 545, threadinfo=d2a86000 task=d2dca020)
> Sep 21 22:12:10 devil kernel: Stack: c032bacd c02471a0 40045010 bffff6ec 00000000 40045010 d9822000 00000000 
> Sep 21 22:12:10 devil kernel:        00200202 00000002 d9822574 00000000 d5135a20 c0125226 00000000 00001000 
> Sep 21 22:12:10 devil kernel:        00000000 00000000 c0246a4c 00000000 40045010 bffff6ec 00000004 00000003 
> Sep 21 22:12:10 devil kernel: Call Trace: [dma_ioctl+896/2634] [update_wall_time+18/60] [audio_ioctl+1452/1512] [sound_ioctl+341/380] [sys_ioctl+639/748] 
> Sep 21 22:12:10 devil kernel:    [syscall_call+7/11] 
> Sep 21 22:12:10 devil kernel: 
> Sep 21 22:12:10 devil kernel: Code: 0f 0b 7b 00 a0 ba 32 c0 83 c4 08 f0 fe 0e 0f 88 aa 06 00 00 
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Mika,

I haven't looked at the code yet... but most of the time when you see this
error it is because the kernel is compiled with CONFIG_DEBUG_SPINLOCK and
the code is using a lock that hasn't be initilized correctly (i.e.:
SPIN_LOCK_UNLOCKED().

-- 
Bob Miller					Email: [e-mail]
Open Source Development Lab			Phone: [phone] Ext. 17