From: Doug Chapman <doug.chapman@hp.com>
To: linux-kernel@vger.kernel.org
Cc: bfields@citi.umich.edu, hch@infradead.org, doug.chapman@hp.com
Subject: Re: post 2.6.21 regression in F_GETLK
Date: Thu, 10 May 2007 15:14:23 -0400 [thread overview]
Message-ID: <1178824463.7247.13.camel@dchapman.boston.redhat.com> (raw)
In-Reply-To: <1178823375.7247.11.camel@dchapman.boston.redhat.com>
On Thu, 2007-05-10 at 14:56 -0400, Doug Chapman wrote:
> A recent regression (introduced after 2.6.21) was caught by the LTP test
> fcntl11. It appears that F_GETLK is not properly checking for existing
> F_RDLCK and allows taking out a write lock.
>
> This can be demonstrated by either running fcntl11 from the LTP suite or
> I have hacked up a much shorter version which demonstrates the issue and
> am attaching it.
>
I should add that I have seen this on ia64 and x86_64. I do not
currently have any 32 bit systems to test on.
- Doug
next prev parent reply other threads:[~2007-05-10 19:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-10 18:56 Doug Chapman
2007-05-10 19:14 ` Doug Chapman [this message]
2007-05-10 19:30 ` J. Bruce Fields
2007-05-10 19:38 ` J. Bruce Fields
2007-05-10 20:23 ` J. Bruce Fields
2007-05-10 21:01 ` Doug Chapman
2007-05-10 21:04 ` J. Bruce Fields
2007-05-10 21:35 ` J. Bruce Fields
2007-05-10 20:24 ` Doug Chapman
2007-05-10 22:38 ` [PATCH] locks: fix F_GETLK regression (failure to find conflicts) J. Bruce Fields
2007-05-10 23:30 ` Doug Chapman
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