linux-kernel - Re: [xfs-masters] Re: 2.6.18-rc6-mm2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20060913015850.GB3034@melbourne.sgi.com>
Date:	Wed, 13 Sep 2006 11:58:50 +1000
From:	David Chinner <dgc@....com>
To:	xfs-masters@....sgi.com
Cc:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [xfs-masters] Re: 2.6.18-rc6-mm2

On Tue, Sep 12, 2006 at 04:37:49PM -0700, Andrew Morton wrote:
> On Wed, 13 Sep 2006 01:34:34 +0200
> "Michal Piotrowski" <michal.k.k.piotrowski@...il.com> wrote:
> 
> > On 13/09/06, Andrew Morton <akpm@...l.org> wrote:
> > > On Tue, 12 Sep 2006 17:42:10 +0200
> > > "Michal Piotrowski" <michal.k.k.piotrowski@...il.com> wrote:
> > >
> > > > On 12/09/06, Michal Piotrowski <michal.k.k.piotrowski@...il.com> wrote:
> > > > > On 12/09/06, Andrew Morton <akpm@...l.org> wrote:
> > > > > >
> > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc6/2.6.18-rc6-mm2/
> > > > > >
> > > > >
> > > > > I get this while umounting jfs (umount segfaulted).
> > > >
> > > > s/jfs/xfs
> > >
> > > Do you mean that both JFS and XFS exhibit this bug, or only XFS?
> > 
> > Only XFS. (s/jfs/xfs - "Thinking in s/c++/sed :)")
> 
> OK, thanks.  Let us rub the xfs-masters lamp and see what emerges.

Just for XFs list folks:


http://www.stardust.webpages.pl/files/mm/2.6.18-rc6-mm2/mm-config1
http://www.stardust.webpages.pl/files/mm/2.6.18-rc6-mm2/mm-dmesg1

Call Trace:
[<c013ae74>] lock_release_non_nested+0xd8/0x143
[<c013b291>] lock_release+0x178/0x19f
[<c02f7dc5>] __mutex_unlock_slowpath+0xbb/0x131
[<c02f7e43>] mutex_unlock+0x8/0xa
[<c017655f>] generic_shutdown_super+0x9c/0xd9
[<c01765bc>] kill_block_super+0x20/0x32
[<c017667c>] deactivate_super+0x5d/0x6f
[<c01892bc>] mntput_no_expire+0x52/0x85
[<c017b2c9>] path_release_on_umount+0x15/0x18
[<c018a469>] sys_umount+0x1e1/0x215
[<c018a4aa>] sys_oldumount+0xd/0xf
[<c0103156>] sysenter_past_esp+0x5f/0x99

I'm not sure why XFS would cause this - the crash is outside XFS releasing
a mutex (sb->s_lock) that XFS code has never touched. I doubt anyone
in the XFS team has done any testing on this -mm kernel...

What is the test case, Michal? Can you post the script you used?

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/