From: Andrew Morton <akpm@linux-foundation.org>
To: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-ext4@vger.kernel.org, Andy Whitcroft <apw@shadowen.org>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Christoph Lameter <clameter@sgi.com>,
linux-mm@kvack.org
Subject: Re: [BUG] Linux 2.6.25-rc2 - Kernel Ooops while running dbench
Date: Mon, 18 Feb 2008 04:59:54 -0800 [thread overview]
Message-ID: <20080218045954.50503fb1.akpm@linux-foundation.org> (raw)
In-Reply-To: <47B6784E.2090401@linux.vnet.ibm.com>
On Sat, 16 Feb 2008 11:14:46 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote:
> The 2.6.25-rc2 kernel oopses while running dbench on ext3 filesystem
> mounted with mount -o data=writeback,nobh option on the x86_64 box
>
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
> IP: [<ffffffff80274972>] kmem_cache_alloc+0x3a/0x6c
> PGD 1f6860067 PUD 1f5d64067 PMD 0
> Oops: 0000 [1] SMP
> CPU 3
> Modules linked in:
> Pid: 4271, comm: dbench Not tainted 2.6.25-rc2-autotest #1
> RIP: 0010:[<ffffffff80274972>] [<ffffffff80274972>] kmem_cache_alloc+0x3a/0x6c
> RSP: 0000:ffff8101fb041dc8 EFLAGS: 00010246
> RAX: 0000000000000000 RBX: ffff810180033c00 RCX: ffffffff8027b269
> RDX: 0000000000000000 RSI: 00000000000080d0 RDI: ffffffff80632d70
> RBP: 00000000000080d0 R08: 0000000000000001 R09: 0000000000000000
> R10: ffff8101feb36e50 R11: 0000000000000190 R12: 0000000000000001
> R13: 0000000000000000 R14: ffff8101f8f38000 R15: 00000000ffffff9c
> FS: 0000000000000000(0000) GS:ffff8101fff0f000(0063) knlGS:00000000f7e41460
> CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 00000001f5620000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process dbench (pid: 4271, threadinfo ffff8101fb040000, task ffff8101fb180000)
> Stack: 0000000000000001 ffff8101fb041ea8 0000000000000001 ffffffff8027b269
> ffff8101fb041ea8 ffffffff80281fe8 0000000000000001 0000000000000000
> ffff8101fb041ea8 00000000ffffff9c 000000000000000b 0000000000000001
> Call Trace:
> [<ffffffff8027b269>] get_empty_filp+0x55/0xf9
> [<ffffffff80281fe8>] __path_lookup_intent_open+0x22/0x8f
> [<ffffffff80282853>] open_namei+0x86/0x5a7
> [<ffffffff8027d019>] vfs_stat_fd+0x3c/0x4a
> [<ffffffff80279ab1>] do_filp_open+0x1c/0x3d
> [<ffffffff80279c2c>] get_unused_fd_flags+0x79/0x111
> [<ffffffff80279dce>] do_sys_open+0x46/0xca
> [<ffffffff80221c82>] ia32_sysret+0x0/0xa
>
Looks to me like we broke slab. Christoph is offline until the 27th..
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next parent reply other threads:[~2008-02-18 12:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.LFD.1.00.0802151302210.9496@woody.linux-foundation.org>
[not found] ` <47B6784E.2090401@linux.vnet.ibm.com>
2008-02-18 12:59 ` Andrew Morton [this message]
2008-02-18 14:25 ` [BUG] Linux 2.6.25-rc2 - Kernel Ooops while running dbench Jeff Garzik
2008-02-18 16:11 ` Frans Pop
2008-03-03 11:51 ` Pekka Enberg
2008-03-04 4:03 ` Kamalesh Babulal
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=20080218045954.50503fb1.akpm@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=apw@shadowen.org \
--cc=balbir@linux.vnet.ibm.com \
--cc=clameter@sgi.com \
--cc=kamalesh@linux.vnet.ibm.com \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.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;
as well as URLs for NNTP newsgroup(s).