Re: 2.6.20.4 crashes

On Sat, 31 Mar 2007 20:44:58 +0200 Maciej Soltysiak <solt@xxxxxxxxxxxxxxxxx> wrote:

Hi,

here's more...

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
00000000
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: binfmt_misc sit nfs lockd nfs_acl sunrpc ipt_ECN iptable_mangle w83627ehf i2c_isa i2c_viapro i2c_core via_agp agpgart rtc
CPU: 0
EIP: 0060:[<00000000>] Not tainted VLI
EFLAGS: 00010016 (2.6.20.3-cks1 #4)

That's not 2.6.20.4.

EIP is at 0x0
eax: e94a5e6c ebx: e94a5e6c ecx: 00000000 edx: 00000001
esi: 00000000 edi: e94a5e84 ebp: e94a5e6c esp: e94a5e4c
ds: 007b es: 007b ss: 0068
Process grep (pid: 9156, ti=e94a4000 task=f4569a90 task.ti=e94a4000)
Stack: c0116429 00000000 00000001 00000001 ec7da800 00000000 00000286 00000000
e94a5e84 c0117802 00000000 00000000 ec7da800 ec7da800 ec7da85c c015c622
00000000 e9d02b40 e94a5f60 f77b6ac0 00000000 00000400 c0313e6c 00001000
Call Trace:
[<c0116429>] __wake_up_common+0x39/0x70
[<c0117802>] __wake_up+0x22/0x30
[<c015c622>] pipe_write+0x222/0x4b0
[<c0156887>] do_sync_write+0xc7/0x110
[<c012b5c0>] autoremove_wake_function+0x0/0x50
[<c0157156>] vfs_write+0xa6/0x160
[<c01567c0>] do_sync_write+0x0/0x110
[<c0157781>] sys_write+0x41/0x70
[<c0102ed6>] sysenter_past_esp+0x5f/0x85
[<c0300033>] ipv6_flowlabel_opt+0x193/0x730
=======================
Code: Bad EIP value.
EIP: [<00000000>] 0x0 SS:ESP 0068:e94a5e4c

__wake_up() did a jump-to-zero. Is it repeatable? Does removal of Con's
patchset fix it?
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