linux-kernel - Re: Hang in XFS reclaim on 3.7.0-rc3

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20121118235105.GT14281@dastard>
Date:	Mon, 19 Nov 2012 10:51:05 +1100
From:	Dave Chinner <david@...morbit.com>
To:	Torsten Kaiser <just.for.lkml@...glemail.com>
Cc:	xfs@....sgi.com, Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Hang in XFS reclaim on 3.7.0-rc3

On Sun, Nov 18, 2012 at 04:29:22PM +0100, Torsten Kaiser wrote:
> On Sun, Nov 18, 2012 at 11:24 AM, Torsten Kaiser
> <just.for.lkml@...glemail.com> wrote:
> > On Tue, Oct 30, 2012 at 9:37 PM, Torsten Kaiser
> > <just.for.lkml@...glemail.com> wrote:
> >> I will keep LOCKDEP enabled on that system, and if there really is
> >> another splat, I will report back here. But I rather doubt that this
> >> will be needed.
> >
> > After the patch, I did not see this problem again, but today I found
> > another LOCKDEP report that also looks XFS related.
> > I found it twice in the logs, and as both were slightly different, I
> > will attach both versions.
> 
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104353] 3.7.0-rc4 #1 Not tainted
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104355] inconsistent
> > {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104430]        CPU0
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104431]        ----
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104432]   lock(&(&ip->i_lock)->mr_lock);
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104433]   <Interrupt>
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104434]
> > lock(&(&ip->i_lock)->mr_lock);
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104435]
> > Nov  6 21:57:09 thoregon kernel: [ 9941.104435]  *** DEADLOCK ***
> 
> Sorry! Copied the wrong report. Your fix only landed in -rc5, so my
> vanilla -rc4 did (also) report the old problem again.
> And I copy&pasted that report instead of the second appearance of the
> new problem.

Can you repost it with line wrapping turned off? The output simply
becomes unreadable when it wraps....

Yeah, I know I can put it back together, but I've got better things
to do with my time than stitch a couple of hundred lines of debug
back into a readable format....

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
--
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/