From: Jeff Mahoney <jeffm@suse•com>
To: Stefan Richter <stefanr@s5r6•in-berlin.de>
Cc: "Rafael J. Wysocki" <rjw@sisk•pl>, Ingo Molnar <mingo@elte•hu>,
Martin Bammer <mrb74@gmx•at>,
Andrew Morton <akpm@linux-foundation•org>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
Adrian Bunk <bunk@kernel•org>,
Linus Torvalds <torvalds@linux-foundation•org>,
Natalie Protasevich <protasnb@gmail•com>,
Kernel Testers List <kernel-testers@vger•kernel.org>,
Network Development <netdev@vger•kernel.org>
Subject: Re: 2.6.30-rc6: Reported regressions from 2.6.29
Date: Sun, 17 May 2009 09:59:30 -0400 [thread overview]
Message-ID: <4A101842.7000501@suse.com> (raw)
In-Reply-To: <4A100977.1070506@s5r6.in-berlin.de>
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Stefan Richter wrote:
> Rafael J. Wysocki wrote:
>> On Sunday 17 May 2009, Ingo Molnar wrote:
>>> * Rafael J. Wysocki <rjw@sisk•pl> wrote:
>>>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13321
>>>> Subject : kernel crash with NULL pointer when boot
>>>> Submitter : Martin Bammer <mrb74@gmx•at>
>>>> Date : 2009-05-16 12:37 (1 days old)
>>>> References : http://lkml.org/lkml/2009/5/16/100
>>> that crash is in reiserfs_for_each_xattr(), during sys_unlink()'s
>>> xattr teardown.
>>>
>>> There's been a good deal of reiserfs changes in this cycle - some
>>> touch the xattr code as well. Some of them fairly late in the cycle,
>
> (Also, the bug is reportedly a post -rc5 regression.)
>
>>> in the last two weeks:
>>>
>>> earth4:~/tip> gll v2.6.29..linus --since=two-weeks-ago fs/reiserfs/
>>> 2a32ceb: Fix races around the access to ->s_options
>>> 677c9b2: reiserfs: remove privroot hiding in lookup
>>> b82bb72: reiserfs: dont associate security.* with xattr files
>>> ab17c4f: reiserfs: fixup xattr_root caching
>>> edcc37a: Always lookup priv_root on reiserfs mount and keep it
>>> 5a6059c: reiserfs: Expand i_mutex to enclose lookup_one_len
>>>
>>> Martin, you could try a blind revert of say ... ab17c4f, which looks
>>> the most suspect and which is also a rather large commit.
>>>
>>> Or/and you could try a bisect - perhaps accelerated via:
>>>
>>> git bisect start fs/reiserfs/
>>
>> I think there's a fix already for this in the works, but it hasn't
>> been merged
>> yet. It looks like Jeff has just posted some reiserfs fixes. :-)
>
> I'd say Martin should try Jeff's pending patches before a revert or
> before starting a bisection. Either apply them from
> http://lkml.org/lkml/2009/5/17/6, or pull from
> git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6.git for-next
> or wait for them to appear in Linus' tree...
>
> I for one didn't test the post v2.6.30-rc5 changes to reiserfs, but I
> did try them _together_ with the four pending patches on a system with
> reiserfs root filesystem and extended attributes disabled in the config.
> Everything is fine here after almost a week uptime.
Yes, this bug is known and is fixed with "[patch 2/4] [PATCH] reiserfs:
deal with NULL xattr root w/ xattrs disabled"
- -Jeff
- --
Jeff Mahoney
SUSE Labs
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next prev parent reply other threads:[~2009-05-17 14:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-16 19:14 2.6.30-rc6: Reported regressions from 2.6.29 Rafael J. Wysocki
2009-05-16 19:20 ` [Bug #13328] b44: eth0: BUG! Timeout waiting for bit 00000002 of register 42c to clear Rafael J. Wysocki
2009-05-17 7:33 ` 2.6.30-rc6: Reported regressions from 2.6.29 Ingo Molnar
[not found] ` <20090517073327.GC1583-X9Un+BFzKDI@public.gmane.org>
2009-05-17 10:34 ` Rafael J. Wysocki
[not found] ` <200905171234.23436.rjw-KKrjLPT3xs0@public.gmane.org>
2009-05-17 12:56 ` Stefan Richter
2009-05-17 13:59 ` Jeff Mahoney [this message]
2009-05-18 14:57 ` Oleg Nesterov
2009-05-18 15:11 ` Ingo Molnar
2009-05-18 15:31 ` Oleg Nesterov
2009-05-18 15:32 ` Linus Torvalds
2009-05-18 15:45 ` Oleg Nesterov
2009-05-22 16:40 ` Linus Torvalds
[not found] ` <alpine.LFD.2.01.0905220926150.3555-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-05-23 0:10 ` Rafael J. Wysocki
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