Bug#283653: marked as done (kernel-image-2.4.27-1-686: Unable to handle kernel NULL pointer dereference)
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and subject line Bug#283653: Acknowledgement (kernel-image-2.4.27-1-686: Unable to handle kernel NULL pointer dereference)
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From: Cyril Bouthors <cyb@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: kernel-image-2.4.27-1-686: Unable to handle kernel NULL pointer dereference
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Date: Tue, 30 Nov 2004 16:14:15 +0300
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Package: kernel-image-2.4.27-1-686
Version: 2.4.27-2
Severity: normal
Hi,
I'm having this error several times a month on a heavy loaded
production NFS server with RAID0:
Unable to handle kernel NULL pointer dereference at virtual address 00000020
printing eip:
f884488e
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[raid0:__insmod_raid0_O/lib/modules/2.4.27-1-686/kernel/drivers/md+-235378/96] Not tainted
EFLAGS: 00010202
eax: f884d6a0 ebx: efd32600 ecx: 00000000 edx: 00000020
esi: efd32600 edi: c2825f5c ebp: 00001ee2 esp: c2825f1c
ds: 0018 es: 0018 ss: 0018
Process kswapd (pid: 4, stackpage=c2825000)
Stack: efd32600 efd32600 c0153734 efd32600 efd32608 c015379d efd32600 f421cc28
c0150018 c3581408 c35817c0 c35817c8 00000000 c0153a24 c2825f5c 00015d9c
efd32428 f50ebdc8 000001d0 0000003c 00000015 c025d478 c0153bb4 00015d9c
Call Trace: [clear_inode+196/224] [dispose_list+77/176] [__get_lease+488/608] [prune_icache+100/464] [shrink_icache_memory+36/64]
[try_to_free_pages_zone+143/256] [kswapd_balance_pgdat+102/176] [kswapd_balance+40/64] [kswapd+152/185] [_stext+0/64] [arch_kernel_thread+46/64]
[kswapd+0/185]
Code: ff 0a 0f 94 c0 84 c0 75 44 ba ff ff ff ff 89 93 8c 01 00 00
<5>__alloc_pages: 0-order allocation failed (gfp=0xf0/0)
It doesn't seem to be a bug in raid0.c according to Neil Brown
<neilb@cse.unsw.edu.au>: "The reference to raid0 is purely accidental
- the offset into raid0 that is mentioned is -235378 : a negative
number !!!!".
Is there a way to fix this?
Thanks.
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.9-1-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages kernel-image-2.4.27-1-686 depends on:
ii coreutils [fileutils] 5.2.1-2 The GNU core utilities
ii fileutils 5.2.1-2 The GNU file management utilities
ii initrd-tools 0.1.74 tools to create initrd image for p
ii modutils 2.4.26-1.1 Linux module utilities
---------------------------------------
Received: (at 283653-done) by bugs.debian.org; 26 Jan 2005 23:56:33 +0000
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Date: Thu, 27 Jan 2005 00:56:30 +0100
From: maximilian attems <debian@sternwelten.at>
To: 283653-done@bugs.debian.org
Subject: Re: Bug#283653: Acknowledgement (kernel-image-2.4.27-1-686: Unable to handle kernel NULL pointer dereference)
Message-ID: <20050126235630.GA21497@sputnik.stro.at>
References: <E1CZ7pf-00010c-Mw@wide.bouthors.org> <handler.283653.B.110182046831301.ack@bugs.debian.org> <87pt1vgx9p.fsf@wide.bouthors.org> <[🔎] 20050124081731.GX1757@verge.net.au> <[🔎] 877jm3jkp1.fsf@wide.bouthors.org>
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On Mon, 24 Jan 2005, Cyril Bouthors wrote:
> That pain did not appeared again since my bug report, even with the
> same kernel.
> --
> Cyril Bouthors
ok great,
hope the pain completly disappeared, if not please reopen bug.
thanks for feedback.
--
maks
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