From: Dave Chinner <david@fromorbit.com>
To: Nikolay Borisov <nborisov@suse.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: lockdep splat in today's master in generic/070
Date: Wed, 1 Mar 2017 09:46:45 +1100 [thread overview]
Message-ID: <20170228224645.GG17542@dastard> (raw)
In-Reply-To: <0e8e52ac-36e4-c8f9-99c7-88e2c9bcb782@suse.com>
On Tue, Feb 28, 2017 at 04:56:01PM +0200, Nikolay Borisov wrote:
> Hello,
>
> I've been running xfstest and I can reliably reproduce the following lockdep splat:
vm_map_ram() has hard coded GFP_KERNEL allocations, it's being
called in GFP_NOFS context, and lockdep doesn't know about
memalloc_noio_save() used by _xfs_buf_map_pages() to work around
the problems in vm_map_ram(). See the comment in
_xfs_buf_map_pages().
-Dave.
--
Dave Chinner
david@fromorbit.com
prev parent reply other threads:[~2017-02-28 23:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-28 14:56 lockdep splat in today's master in generic/070 Nikolay Borisov
2017-02-28 15:15 ` Nikolay Borisov
2017-02-28 22:46 ` Dave Chinner [this message]
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