From: Calum Mackay <calum.mackay@cdmnet.org>
To: linux-kernel@vger.kernel.org
Subject: 2.6.3: NULL pointer deref in get_disk()
Date: Sat, 28 Feb 2004 11:21:02 +0000 [thread overview]
Message-ID: <4040799E.7000600@cdmnet.org> (raw)
I've recently started seeing the following on every attempt to mount a
CompactFlash card - with a VFAT fs on it.
I am pretty sure that I've been able to mount this CF card previously,
with the same 2.6.3 kernel, and in fact even during this boot uptime.
any thoughts?
cheers,
c.
diz $ mount -V
mount: mount-2.12
diz $ uname -a
Linux diz 2.6.3 #16 Fri Feb 20 13:48:22 GMT 2004 i686 GNU/Linux
Feb 28 11:11:18 cdmnet kernel: <1>Unable to handle kernel NULL pointer
dereference at virtual address 00000804
Feb 28 11:11:18 cdmnet kernel: printing eip:
Feb 28 11:11:18 cdmnet kernel: c01e94a2
Feb 28 11:11:18 cdmnet kernel: *pde = 00000000
Feb 28 11:11:18 cdmnet kernel: Oops: 0000 [#1831]
Feb 28 11:11:18 cdmnet kernel: CPU: 0
Feb 28 11:11:18 cdmnet kernel: EIP: 0060:[get_disk+18/168] Not tainted
Feb 28 11:11:18 cdmnet kernel: EFLAGS: 00210206
Feb 28 11:11:18 cdmnet kernel: EIP is at get_disk+0x12/0xa8
Feb 28 11:11:18 cdmnet kernel: eax: 000007f0 ebx: edd96a80 ecx:
00000008 edx: 00000001
Feb 28 11:11:18 cdmnet kernel: esi: 00000000 edi: edd96a80 ebp:
c01e8e2c esp: cf719c54Feb 28 11:11:18 cdmnet kernel: ds: 007b es:
007b ss: 0068
Feb 28 11:11:18 cdmnet kernel: Process mount (pid: 13879,
threadinfo=cf718000 task=e4190ce0)
Feb 28 11:11:18 cdmnet kernel: Stack: edd96a80 00000000 d1d3ef40
c01e8e42 edd96a80 c01e3bd7 00800001 edd96a80
Feb 28 11:11:18 cdmnet kernel: cf718000 e60c1180 e60c1180
00000001 0000000f c01e8ecd efd2c800 00800001
Feb 28 11:11:18 cdmnet kernel: cf719cc0 c0151c32 00800001
cf719cc0 00000000 e60c1180 cf719de0 00000001
Feb 28 11:11:18 cdmnet kernel: Call Trace:
Feb 28 11:11:18 cdmnet kernel: [exact_lock+10/32] exact_lock+0xa/0x20
Feb 28 11:11:19 cdmnet kernel: [kobj_lookup+199/444] kobj_lookup+0xc7/0x1bc
Feb 28 11:11:19 cdmnet kernel: [get_gendisk+21/44] get_gendisk+0x15/0x2c
Feb 28 11:11:19 cdmnet kernel: [do_open+70/988] do_open+0x46/0x3dc
Feb 28 11:11:19 cdmnet kernel: [blkdev_get+109/124] blkdev_get+0x6d/0x7c
Feb 28 11:11:19 cdmnet kernel: [open_bdev_excl+66/140]
open_bdev_excl+0x42/0x8c
Feb 28 11:11:19 cdmnet kernel: [get_sb_bdev+29/304] get_sb_bdev+0x1d/0x130
Feb 28 11:11:19 cdmnet kernel: [kmem_cache_alloc+47/56]
kmem_cache_alloc+0x2f/0x38
Feb 28 11:11:19 cdmnet kernel: [__crc_do_softirq+304176/2176560]
gcc2_compiled.+0x1f/0x24 [vfat]
Feb 28 11:11:19 cdmnet kernel: [__crc_do_softirq+304069/2176560]
vfat_fill_super+0x0/0x4c [vfat]
Feb 28 11:11:19 cdmnet kernel: [do_kern_mount+74/180]
do_kern_mount+0x4a/0xb4
Feb 28 11:11:19 cdmnet kernel: [do_add_mount+105/312]
do_add_mount+0x69/0x138
Feb 28 11:11:19 cdmnet kernel: [do_mount+354/380] do_mount+0x162/0x17c
Feb 28 11:11:19 cdmnet kernel: [copy_mount_options+128/248]
copy_mount_options+0x80/0xf8
Feb 28 11:11:19 cdmnet kernel: [sys_mount+167/276] sys_mount+0xa7/0x114
Feb 28 11:11:19 cdmnet kernel: [sysenter_past_esp+82/113]
sysenter_past_esp+0x52/0x71
Feb 28 11:11:19 cdmnet kernel:
Feb 28 11:11:19 cdmnet kernel: Code: 8b 70 14 85 f6 74 3b bb 01 00 00 00
b8 00 e0 ff ff 21 e0 ff
reply other threads:[~2004-02-28 11:21 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4040799E.7000600@cdmnet.org \
--to=calum.mackay@cdmnet.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox