From: Christoph Hellwig <hch@infradead.org>
To: Bryan Schumaker <bjschuma@netapp.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Justin Piszcz <jpiszcz@lucidpixels.com>,
"J. Bruce Fields" <bfields@fieldses.org>,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
xfs@oss.sgi.com
Subject: Re: 2.6.xx: NFS: directory motion/cam2 contains a readdir loop
Date: Wed, 27 Jul 2011 16:02:40 -0400 [thread overview]
Message-ID: <20110727200240.GA16054@infradead.org> (raw)
In-Reply-To: <4E306D09.5030704@netapp.com>
On Wed, Jul 27, 2011 at 03:54:49PM -0400, Bryan Schumaker wrote:
> > Any chance to figure out if the file you hit the printk with was one
> > that got either recently added or moved when you hit it? (I can't
> > follow the nfs code enough to check if it prints the first or second hit
> > of the same cookie)
>
> It should be printing on the second hit of a cookie.
But looking closer at it it only prints the directory name and not that
of any of the matching cookies, making it pretty useless to debug any
problem. (and it makes my previous question to Justin look stupid..).
But so far I still stick to my previous theory that this sounds like
a directory offset getting reused. How is cache invalidation for
the array supposed to work? And maybe more importantly, given that he
can only reproduce it with a .38 client did any bugs get fixed in that
code recently that might lead to issues with the cache invalidation?
next prev parent reply other threads:[~2011-07-27 20:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.DEB.2.02.1107270952270.1451@p34.internal.lan>
2011-07-27 16:07 ` 2.6.xx: NFS: directory motion/cam2 contains a readdir loop J. Bruce Fields
2011-07-27 16:28 ` Justin Piszcz
2011-07-27 16:40 ` Bryan Schumaker
2011-07-27 17:00 ` Ruediger Meier
2011-07-27 17:09 ` Bryan Schumaker
2011-07-27 17:17 ` Justin Piszcz
2011-07-27 17:45 ` J. Bruce Fields
2011-07-27 18:28 ` Bryan Schumaker
2011-07-27 17:15 ` Justin Piszcz
2011-07-27 18:11 ` Christoph Hellwig
2011-07-27 19:35 ` Justin Piszcz
2011-07-27 19:39 ` Christoph Hellwig
2011-07-27 19:44 ` Justin Piszcz
2011-07-27 19:47 ` Christoph Hellwig
2011-07-27 19:54 ` Bryan Schumaker
2011-07-27 20:02 ` Christoph Hellwig [this message]
2011-07-27 20:05 ` Christoph Hellwig
2011-07-27 20:26 ` Rüdiger Meier
2011-07-27 20:47 ` Christoph Hellwig
2011-07-27 21:21 ` Rüdiger Meier
2011-07-27 19:57 ` Justin Piszcz
2011-07-27 20:37 ` Trond Myklebust
2011-07-27 20:54 ` Trond Myklebust
2011-07-27 20:56 ` Trond Myklebust
[not found] ` <1311800195.25645.45.camel-SyLVLa/KEI9HwK5hSS5vWB2eb7JE58TQ@public.gmane.org>
2011-07-27 21:24 ` Justin Piszcz
[not found] ` <alpine.DEB.2.02.1107271723500.25432-0qmrozcXWo8bm2hyYBkBBg@public.gmane.org>
2011-07-27 22:44 ` Justin Piszcz
2011-07-28 20:48 ` Trond Myklebust
2011-07-29 20:52 ` Bryan Schumaker
2011-07-29 20:59 ` Justin Piszcz
2011-07-29 22:03 ` Trond Myklebust
2011-07-29 22:23 ` Justin Piszcz
2011-07-30 9:58 ` Justin Piszcz
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