From: Dave Chinner <david@fromorbit.com>
To: Eric Sandeen <sandeen@redhat.com>
Cc: Lachlan McIlroy <lmcilroy@redhat.com>,
xfs mailing list <xfs@oss.sgi.com>
Subject: Re: [PATCH] xfstests 246: Test for race between direct I/O and mmap
Date: Thu, 18 Nov 2010 16:36:23 +1100 [thread overview]
Message-ID: <20101118053623.GU13830@dastard> (raw)
In-Reply-To: <4CDDC193.9030208@redhat.com>
On Fri, Nov 12, 2010 at 04:37:07PM -0600, Eric Sandeen wrote:
>
>
> From: Lachlan McIlroy <lmcilory@redhat.com>
>
> A customer reported a problem:
>
> If a process is using mmap to write to a file on an
> ext4 filesystem while another process is using direct
> I/O to write to the same file the first thread may
> receive a SIGBUS during a page fault.
>
> A SIGBUS occurs if the page fault tries to access a
> page that is entirely beyond the end of the file but
> in this test case that should not be happening.
>
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
> ---
looks fine to me.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
prev parent reply other threads:[~2010-11-18 5:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-12 22:37 [PATCH] xfstests 246: Test for race between direct I/O and mmap Eric Sandeen
2010-11-15 1:01 ` Lachlan McIlroy
2010-11-15 3:57 ` Eric Sandeen
2010-11-18 5:36 ` Dave Chinner [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20101118053623.GU13830@dastard \
--to=david@fromorbit.com \
--cc=lmcilroy@redhat.com \
--cc=sandeen@redhat.com \
--cc=xfs@oss.sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.