From: Andrew Morton <akpm@osdl.org>
To: MalteSch@gmx.de
Cc: Malte.Schroeder@hanse.net, linux-kernel@vger.kernel.org,
Jaroslav Kysela <perex@suse.cz>
Subject: Re: [BUG] in generic.c, unloading alsa [Re: 2.6.4-rc2-mm1]
Date: Tue, 9 Mar 2004 14:39:22 -0800 [thread overview]
Message-ID: <20040309143922.567c05d3.akpm@osdl.org> (raw)
In-Reply-To: <200403092107.09881.Malte.Schroeder@hanse.net>
Malte Schröder <Malte.Schroeder@hanse.net> wrote:
>
> Hi, by trying to unload alsa (emu10k1) I get the following:
>
> ------------[ cut here ]------------
> kernel BUG at fs/proc/generic.c:664!
> invalid operand: 0000 [#1]
> PREEMPT
> CPU: 0
> EIP: 0060:[<c0187be9>] Not tainted VLI
> EFLAGS: 00010286
> EIP is at remove_proc_entry+0xe9/0x140
> eax: f3209cc0 ebx: f3fb85f0 ecx: f63d2140 edx: f7fece00
> esi: 00000005 edi: f375a140 ebp: 00000000 esp: f42ffe70
> ds: 007b es: 007b ss: 0068
> Process modprobe (pid: 1835, threadinfo=f42fe000 task=f23b7150)
> Stack: f375a140 f375a188 f375a140 f3209dc0 f375a188 f9ada470 f375a240 00000080
> f9acfa7b f375a188 f3fb85c0 f74abe00 f74abe00 f9acf5b1 f375a240 f3fb85c0
> f42fe000 f9acddcf f74abe00 00000002 f22989c0 c0171bde f7ff7b2c f22989c0
> Call Trace:
> [<f9acfa7b>] snd_info_unregister+0x3b/0x70 [snd]
> [<f9acf5b1>] snd_info_card_free+0x31/0x60 [snd]
> [<f9acddcf>] snd_card_free+0xef/0x230 [snd]
> [<c0171bde>] destroy_inode+0x4e/0x50
> [<c016fca2>] dput+0x22/0x270
> [<f9b5e3a9>] snd_card_emu10k1_remove+0x19/0x30 [snd_emu10k1]
> [<c01f1f8b>] pci_device_remove+0x3b/0x40
This means that the driver deleted a /proc directory while it still has
live subdirectories. Arjan says this has been observed to lead to memory
corruption later on.
prev parent reply other threads:[~2004-03-09 22:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-08 6:32 2.6.4-rc2-mm1 Andrew Morton
2004-03-08 16:20 ` 2.6.4-rc2-mm1 (compile stats) John Cherry
2004-03-13 14:26 ` Paul Dickson
2004-03-08 19:44 ` 2.6.4-rc2-mm1 Thomas Schlichter
2004-03-08 20:05 ` 2.6.4-rc2-mm1 Thomas Schlichter
2004-03-08 22:49 ` 2.6.4-rc2-mm1 Greg KH
2004-03-08 20:05 ` 2.6.4-rc2-mm1 Christian Borntraeger
2004-03-08 22:00 ` 2.6.4-rc2-mm1 Valdis.Kletnieks
2004-03-09 1:39 ` 2.6.4-rc2-mm1: IPMI_SMB doesnt compile Adrian Bunk
2004-03-10 16:01 ` Corey Minyard
2004-03-10 18:51 ` Adrian Bunk
2004-03-10 19:06 ` Greg KH
2004-03-10 20:47 ` Corey Minyard
2004-03-10 21:12 ` Greg KH
2004-03-10 19:11 ` Corey Minyard
2004-03-10 18:57 ` Greg KH
2004-03-09 4:44 ` 2.6.4-rc2-mm1 Valdis.Kletnieks
2004-03-09 20:07 ` [BUG] in generic.c, unloading alsa [Re: 2.6.4-rc2-mm1] Malte Schröder
2004-03-09 22:39 ` Andrew Morton [this message]
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