From: "Alexander Beregalov" <a.beregalov@gmail•com>
To: Dave Chinner <david@fromorbit•com>,
lachlan@sgi•com, Christoph Hellwig <hch@infradead•org>,
Arjan van de Ven <arjan@infradead•org>,
xfs@oss•sgi.com, linux-next@vger•kernel.org
Subject: Re: BUG: sleeping function called from invalid context at kernel/rwsem.c:131 XFS? (was: Re: linux-next: Tree for October 17)
Date: Wed, 22 Oct 2008 12:21:23 +0400 [thread overview]
Message-ID: <a4423d670810220121k27ab3d1dp1921ea282786eebc@mail.gmail.com> (raw)
In-Reply-To: <20081022075838.GK18495@disturbed>
> Ah, OK, I see the problem, though I don't understand why I'm not
> seeing the might_sleep() triggering all the time given that I always
> build with:
>
> $ grep SLEEP .config
> CONFIG_DEBUG_SPINLOCK_SLEEP=y
>
> Basically the above commit moved xfs_ilock() inside
> radix_tree_preload()/radix_tree_preload_end(), which means we are
> taking a rwsem() while we have an elevated preempt count. I'll
> get a patch out to fix it.
Could it cause the I/O dead lock or should I continue trying to reproduce it?
next prev parent reply other threads:[~2008-10-22 8:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-17 12:43 BUG: sleeping function called from invalid context at kernel/rwsem.c:131 XFS? (was: Re: linux-next: Tree for October 17) Alexander Beregalov
2008-10-17 16:41 ` Christoph Hellwig
2008-10-17 16:54 ` Alexander Beregalov
2008-10-17 16:57 ` Christoph Hellwig
2008-10-17 17:13 ` Alexander Beregalov
2008-10-17 20:37 ` Christoph Hellwig
2008-10-17 20:55 ` Arjan van de Ven
2008-10-20 14:58 ` Alexander Beregalov
2008-10-20 16:33 ` Christoph Hellwig
2008-10-20 17:13 ` Alexander Beregalov
2008-10-20 22:35 ` Dave Chinner
2008-10-21 11:42 ` Alexander Beregalov
2008-10-22 7:58 ` Dave Chinner
2008-10-22 8:21 ` Alexander Beregalov [this message]
2008-10-22 8:28 ` Dave Chinner
2008-10-22 8:25 ` Dave Chinner
2008-10-22 9:12 ` Alexander Beregalov
2008-10-22 10:13 ` Christoph Hellwig
2008-10-22 21:10 ` Dave Chinner
2008-10-22 15:06 ` BUG: sleeping function called from invalid context at kernel/rwsem.c:131 XFS? Johannes Weiner
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