Re: 2.4.22-pre lockups (now decoded oops for pre10)

Willy Tarreau
2003-08-06T09:09:35Z

On Wed, Aug 06, 2003 at 09:41:50AM +0200, Stephan von Krawczynski wrote:

> Code; c0144b14 <__remove_from_queues+14/30>
> 00000000 <_EIP>:
> Code; c0144b14 <__remove_from_queues+14/30> <=====
> 0: 89 02 mov %eax,(%edx) <=====
> Code; c0144b16 <__remove_from_queues+16/30>
> 2: c7 41 30 00 00 00 00 movl $0x0,0x30(%ecx)
> Code; c0144b1d <__remove_from_queues+1d/30>
> 9: 89 4c 24 04 mov %ecx,0x4(%esp,1)
> Code; c0144b21 <__remove_from_queues+21/30>
> d: e9 7a ff ff ff jmp ffffff8c <_EIP+0xffffff8c>
> Code; c0144b26 <__remove_from_queues+26/30>
> 12: 8d 76 00 lea 0x0(%esi),%esi

once again, it's *pprev=next which is is causing trouble, with pprev=6 this
time (fs/buffer.c:523). There really seems to be something playing badly with
this...

I find amazing that such widely used portions of code only trigger panics on
your system ! either it's a rare combinations of several components/drivers, or
a strange hardware problem, although I can't imagine which (cpu? bus locking?).

Cheers,
Willy