From: Paul Fulghum <paulkf@microgate.com>
To: Bob Copeland <bcopeland@gmail.com>
Cc: paulus@samba.org, Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.16-rc5 pppd oops on disconnects
Date: Fri, 10 Mar 2006 11:22:20 -0600 [thread overview]
Message-ID: <1142011340.3220.4.camel@amdx2.microgate.com> (raw)
In-Reply-To: <b6c5339f0603100625k3410897fy3515d93fa1918c9@mail.gmail.com>
On Fri, 2006-03-10 at 09:25 -0500, Bob Copeland wrote:
> Unable to handle kernel paging request at virtual address 6b6b6bfb
> printing eip:
> c027a4f6
> *pde = 00000000
> Oops: 0000 [#1]
> ...
> CPU: 0
> EIP: 0060:[<c027a4f6>] Not tainted VLI
> EFLAGS: 00210046 (2.6.16-rc5 #16)
> EIP is at __mutex_lock_slowpath+0x70/0x286
> eax: cf549e20 ebx: cf548000 ecx: 00000000 edx: 00000054
> esi: 6b6b6bdb edi: cea6f030 ebp: c017592e esp: cf549e20
> ds: 007b es: 007b ss: 0068
> Process pppd (pid: 4076, threadinfo=cf548000 task=cea6f030)
> Stack: <0>cf549e20 cf549e20 11111111 11111111 cf549e20 cce32c60
> cf609cc4 cf609ccc
> cf609c60 c017592e ccabf7a0 cce5466c 6b6b6b6b cce32c60 cf609cc4 cf609ccc
> cf609c60 c01e756e cce5466c ccabf7a0 cd619aac c029fd21 00000000 ccabf7a0
> Call Trace:
> [<c017592e>] sysfs_hash_and_remove+0x34/0x10a
> [<c01e756e>] class_device_del+0xa0/0x11c
> [<c01e75f5>] class_device_unregister+0xb/0x16
> [<d01f81f3>] acm_tty_unregister+0x1d/0x63 [cdc_acm]
This looks more like
http://bugzilla.kernel.org/show_bug.cgi?id=5876
The offset from 6b6b6b6b looks like slab poisoning on
the dentry in sysfs_hash_and_remove.
--
Paul Fulghum
Microgate Systems, Ltd
next prev parent reply other threads:[~2006-03-10 17:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-10 14:25 2.6.16-rc5 pppd oops on disconnects Bob Copeland
2006-03-10 17:22 ` Paul Fulghum [this message]
2006-03-10 18:48 ` Bob Copeland
2006-03-10 19:25 ` Paul Fulghum
2006-03-11 15:09 ` Bob Copeland
2006-03-11 17:56 ` Paul Fulghum
2006-03-11 20:21 ` Bob Copeland
2006-03-11 21:57 ` Paul Fulghum
2006-03-12 16:26 ` Paul Fulghum
2006-03-12 17:58 ` Bob Copeland
2006-03-12 20:09 ` [linux-usb-devel] " Oliver Neukum
2006-03-12 21:30 ` Bob Copeland
2006-03-13 2:21 ` Paul Fulghum
2006-03-12 5:35 ` Greg KH
2006-03-12 16:31 ` Bob Copeland
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