From: Christoph Hellwig <hch@infradead.org>
To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Cc: Christoph Hellwig <hch@infradead.org>,
"xfs-masters@oss.sgi.com" <xfs-masters@oss.sgi.com>,
"xfs@oss.sgi.com" <xfs@oss.sgi.com>,
aelder@sgi.com
Subject: Re: xfs deadlock in stable kernel 3.0.4
Date: Wed, 21 Sep 2011 07:39:35 -0400 [thread overview]
Message-ID: <20110921113935.GA8947@infradead.org> (raw)
In-Reply-To: <4E79940A.4000502@profihost.ag>
On Wed, Sep 21, 2011 at 09:36:42AM +0200, Stefan Priebe - Profihost AG wrote:
> >So far I haven't been able to recreate it. How many runs did you
> >normally need on 3.1-rc? Note that so far I've run my known working
> >kernel, I'll test your config plus the drivers I need next.
>
> I had only used 3.0.4 with bonnie++ to reproduce. 3.1-rc was running
> on a prod. system.
>
> Sadly i'm also not able to reproduce it reliable on every partition.
> Sometimes it works sometimes not. Just retrying does not help. I had
> to copy and delete random files from the part. and then start
> bonnie++ on it. Perhaps i can give you a dd dump of the partition.
> But i had to recreate one. My Intel SSD is now massivly slower than
> when i started the tests. No idea why.
So far it runs fine on 3.1-rc both with my default config and yours,
the latter had been running all night. This is on a 8-core Nehalem
with 8GB of memory, and a fast PCI-e flash device.
One thing I noticed is that your config seems to run many fs tasks
a lot slower than mine, but I'm not entirely sure why.
The only interesting things I noticed in your config where that you
use slub instead of slab, which does a lot of high order allocations
and has caused lots of trouble in the past, and that you enable
CONFIG_CC_OPTIMIZE_FOR_SIZE, which has caused mis-compilation
of complicated code in the past. I don't want to blame it directly,
but I could see how that causes problems with some of the atomic64_t
games XFS plays since 2.6.38.
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next prev parent reply other threads:[~2011-09-21 11:39 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-10 12:23 xfs deadlock in stable kernel 3.0.4 Stefan Priebe
2011-09-12 15:21 ` Christoph Hellwig
2011-09-12 16:46 ` Stefan Priebe
2011-09-12 20:05 ` Christoph Hellwig
2011-09-13 6:04 ` Stefan Priebe - Profihost AG
2011-09-13 19:31 ` Stefan Priebe - Profihost AG
2011-09-13 20:50 ` Christoph Hellwig
2011-09-13 21:52 ` [xfs-masters] " Alex Elder
2011-09-13 21:58 ` Alex Elder
2011-09-13 22:26 ` Christoph Hellwig
2011-09-14 7:26 ` Stefan Priebe - Profihost AG
2011-09-14 7:48 ` Stefan Priebe - Profihost AG
2011-09-14 8:49 ` Stefan Priebe - Profihost AG
2011-09-14 14:30 ` Christoph Hellwig
2011-09-14 14:30 ` Christoph Hellwig
2011-09-14 16:06 ` Stefan Priebe - Profihost AG
2011-09-18 9:14 ` Stefan Priebe - Profihost AG
2011-09-18 20:04 ` Christoph Hellwig
2011-09-19 10:54 ` Stefan Priebe - Profihost AG
2011-09-18 23:02 ` Dave Chinner
2011-09-20 0:47 ` Stefan Priebe
2011-09-20 1:01 ` Stefan Priebe
2011-09-20 10:09 ` Stefan Priebe - Profihost AG
2011-09-20 16:02 ` Christoph Hellwig
2011-09-20 17:23 ` Stefan Priebe - Profihost AG
2011-09-20 17:24 ` Christoph Hellwig
2011-09-20 17:35 ` Stefan Priebe - Profihost AG
2011-09-20 22:30 ` Christoph Hellwig
2011-09-21 2:11 ` [xfs-masters] " Dave Chinner
2011-09-21 7:40 ` Stefan Priebe - Profihost AG
2011-09-21 11:42 ` Dave Chinner
2011-09-21 11:55 ` Stefan Priebe - Profihost AG
2011-09-21 12:26 ` Christoph Hellwig
2011-09-21 13:42 ` Stefan Priebe
2011-09-21 16:48 ` Stefan Priebe - Profihost AG
2011-09-21 17:26 ` Stefan Priebe - Profihost AG
2011-09-21 19:01 ` Stefan Priebe - Profihost AG
2011-09-21 23:07 ` Dave Chinner
2011-09-22 14:14 ` Christoph Hellwig
2011-09-22 21:49 ` Dave Chinner
2011-09-22 22:01 ` Christoph Hellwig
2011-09-23 5:28 ` Stefan Priebe - Profihost AG
2011-09-22 0:53 ` Dave Chinner
2011-09-22 5:27 ` Stefan Priebe - Profihost AG
2011-09-22 7:52 ` Stefan Priebe - Profihost AG
2011-09-21 7:36 ` Stefan Priebe - Profihost AG
2011-09-21 11:39 ` Christoph Hellwig [this message]
2011-09-21 13:39 ` Stefan Priebe
2011-09-21 14:17 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2011-09-11 13:12 Stefan Priebe - Profihost AG
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