From: Oleg Drokin <green@namesys.com>
To: Stephan von Krawczynski <skraw@ithnet.com>
Cc: marcelo@conectiva.com.br, akpm@osdl.org, andrea@suse.de,
alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org,
mason@suse.com
Subject: Re: 2.4.22-pre lockups (now decoded oops for pre10)
Date: Thu, 14 Aug 2003 12:45:18 +0400 [thread overview]
Message-ID: <20030814084518.GA5454@namesys.com> (raw)
In-Reply-To: <20030814001953.1505bda4.skraw@ithnet.com>
Hello!
> > You seem to be getting corruptions in at least 2 days for now, though.
> > And reiserfs seems to trigger the problem even faster (and may be
> > even more faster if you enable CONFIG_REISERFS_CHECK).
> well, I have an idea how to find out more about these verify problem. Basically
> I would try to patch tar to ouput the differing areas to stdout in hexdump
> format or the like. Only I need some time to make this work out. I hope to find
> some pattern about this corruption.
Yes, that would be interesting.
> > > If we can add "ext3 does not crash" to the list, then I really hope we can
> > > use some brain and give good selection of patches between 2.4.20 and 2.4.21
> > > that may cause the troubles.
> > There were not much changes in reiserfs. All those patches can easily be
> > reverted just for verification purposes. Let me know when you are ready/want
> > to test this variant and I will send you a diff.
> Hm, my primary belief is that something _around_ reiserfs has changed
> semantics.
Well. Might be, but this is unlikely. And I do not remember anything like that.
I will take a closer look, though.
> > > If possible I can then patch out all of them and retry. So there is much
> > > less time spent for testing.
> > > I mean, have you looked at the length of this thread already?
> > Yes, I did.
> > Now if only we can get someone to reproduce your problems...
> Hm, I believe nobody in fact tried a setup like mine. As I have clear
> indication that I can trigger it simply by using an SMP box, installing SuSE
> 8.2, compiling stock 2.4.22-rc2 kernel exporting some reiserfs to a nfs-client
> of your choice and starting copying data with sizes around 100GB back and
> forth.
sounds like quite typical setup for some tasks (like clusters I guess).
> > > > Probably it would be easier for you to make it crash (if there are crash
> > > > possibility at all) if you enable JBD debugging.
> > > I have never seen this in real life. Is it possible to turn this on when
> > > handling >100 GB of data or will some debug output flood the box?
> > It only enables some more checks, not debug output.
> Does this work for ext3, reiserfs or both?
This works for ext3
For reiserfs we have similar compile time option that is called
CONFIG_REISERFS_CHECK
Thank you for all the time and efforts you are putting into finding out
the cause.
Bye,
Oleg
next prev parent reply other threads:[~2003-08-14 8:45 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030808002918.723abb08.skraw@ithnet.com>
2003-08-08 14:54 ` 2.4.22-pre lockups (now decoded oops for pre10) Marcelo Tosatti
2003-08-08 15:05 ` Stephan von Krawczynski
2003-08-08 15:33 ` Marcelo Tosatti
2003-08-10 21:35 ` Stephan von Krawczynski
2003-08-10 23:23 ` Neil Brown
2003-08-11 9:33 ` Stephan von Krawczynski
2003-08-18 20:43 ` Mike Fedyk
2003-08-13 10:55 ` Stephan von Krawczynski
2003-08-13 14:53 ` Marcelo Tosatti
2003-08-13 14:59 ` Oleg Drokin
2003-08-13 15:12 ` Stephan von Krawczynski
2003-08-13 15:30 ` Oleg Drokin
2003-08-13 16:04 ` Stephan von Krawczynski
2003-08-13 16:34 ` Oleg Drokin
2003-08-13 22:19 ` Stephan von Krawczynski
2003-08-14 8:45 ` Oleg Drokin [this message]
2003-08-14 17:26 ` Marcelo Tosatti
2003-08-14 17:42 ` Stephan von Krawczynski
2003-08-15 2:08 ` Chris Mason
2003-08-15 9:40 ` Stephan von Krawczynski
2003-08-15 10:28 ` Stephan von Krawczynski
2003-08-15 12:55 ` Chris Mason
2003-08-20 14:21 ` 2.4.22-pre lockups (yet another oops for rc2) Stephan von Krawczynski
2003-09-05 9:24 ` 2.4.22-pre lockups (case closed) Stephan von Krawczynski
2003-09-05 13:37 ` Andrea Arcangeli
2003-08-15 10:13 ` 2.4.22-pre lockups (now decoded oops for pre10) Stephan von Krawczynski
2003-08-15 10:31 ` Oleg Drokin
2003-08-18 15:06 ` Andrea Arcangeli
2003-08-18 20:19 ` Stephan von Krawczynski
2003-08-18 20:58 ` Mike Fedyk
2003-08-18 22:31 ` Andrea Arcangeli
2003-08-19 1:12 ` Mike Fedyk
2003-08-19 7:12 ` Stephan von Krawczynski
2003-08-19 13:10 ` Alan Cox
2003-08-19 14:18 ` Stephan von Krawczynski
2003-08-19 18:00 ` Mike Fedyk
2003-08-19 21:58 ` Stephan von Krawczynski
2003-08-19 13:27 ` Andrea Arcangeli
2003-08-13 15:21 ` Jim Gifford
2003-08-13 17:08 ` Marcelo Tosatti
2003-08-10 14:23 ` Keith Owens
2003-08-02 12:27 2.4.22-pre lockups (decoded oops for pre8) Stephan von Krawczynski
2003-08-05 16:40 ` Marcelo Tosatti
2003-08-06 7:41 ` 2.4.22-pre lockups (now decoded oops for pre10) Stephan von Krawczynski
2003-08-06 8:58 ` Oleg Drokin
2003-08-06 9:09 ` Willy Tarreau
2003-08-06 9:36 ` Stephan von Krawczynski
2003-08-06 12:45 ` Willy Tarreau
2003-08-18 14:23 ` Andrea Arcangeli
2003-08-06 18:15 ` Marcelo Tosatti
2003-08-07 2:14 ` Stephan von Krawczynski
2003-08-07 5:35 ` Oleg Drokin
2003-08-07 12:45 ` Marcelo Tosatti
[not found] ` <3F325198.2010301@namesys.com>
2003-08-07 13:32 ` Stephan von Krawczynski
2003-08-18 20:29 ` Mike Fedyk
2003-08-18 20:39 ` Stephan von Krawczynski
2003-08-18 21:09 ` Mike Fedyk
2003-08-07 15:52 ` Stephan von Krawczynski
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