From: Jon Bendtsen (jon+vserver_at_silicide.dk)
Date: Fri 11 Jul 2003 - 15:20:51 BST
Kyle Yencer wrote:
> List,
>
> Here is the message I have gotten from my latest crash, it is finally a full
> one, usually, there is no trace left in the log:
>
> Jul 11 09:07:28 vps2 kernel: Unable to handle kernel NULL pointer
> dereference at virtual address 00000004
> Jul 11 09:07:28 vps2 kernel: printing eip:
> Jul 11 09:07:28 vps2 kernel: c0122651
> Jul 11 09:07:28 vps2 kernel: *pde = 00000000
> Jul 11 09:07:28 vps2 kernel: Oops: 0002
> Jul 11 09:07:28 vps2 kernel: CPU: 0
> Jul 11 09:07:28 vps2 kernel: EIP: 0010:[<c0122651>] Not tainted
> Jul 11 09:07:28 vps2 kernel: EFLAGS: 00010093
> Jul 11 09:07:28 vps2 kernel: eax: f28c7f78 ebx: 00000286 ecx: 00000003
> edx: 00000000
> Jul 11 09:07:28 vps2 kernel: esi: c7817f78 edi: 01c9b3e0 ebp: c7817fa0
> esp: c7817f68
> Jul 11 09:07:28 vps2 kernel: ds: 0018 es: 0018 ss: 0018
> Jul 11 09:07:28 vps2 kernel: Process java (pid: 5483, stackpage=c7817000)
> Jul 11 09:07:28 vps2 kernel: Stack: c7817f78 000103de c01173f9 c7817f78
> 00000000 00000000 000103de c7816000
> Jul 11 09:07:28 vps2 kernel: c0117320 00000002 00000001 c0114a7f
> c7816000 5017f354 c7817fa8 c01234eb
> Jul 11 09:07:28 vps2 kernel: 00000000 01c9b3e0 c7816000 5017f34c
> 5017f354 5017f514 c0108c43 5017f34c
> Jul 11 09:07:28 vps2 kernel: Call Trace: [<c01173f9>] [<c0117320>]
> [<c0114a7f>] [<c01234eb>] [<c0108c43>]
>
> The process that is listed in the out put belongs to an instance of JBoss
> 3.2.1 running inside of a VServer, has anyone had similar occurances?
What is it with you people? A user-mode program should in NO WAY WHAT SO
EVER crash a kernel, even if it is a vserver patched linux. The problem
has to reside inside some part of the kernel. It can be a race condition
that only happens when you have alot of processes, memory, io, ...
or something totaly different. It might or might not be vserver related.
JonB