linux-kernel - Re: 2.6.28-rc3 truncates nfsd results

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Message-ID: <20081104193604.GE10974@fieldses.org>
Date:	Tue, 4 Nov 2008 14:36:04 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Doug Nazar <nazard@...goninc.ca>
Cc:	'David Woodhouse' <David.Woodhouse@...el.com>,
	'Al Viro' <viro@...iv.linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.28-rc3 truncates nfsd results

On Tue, Nov 04, 2008 at 01:27:23PM -0500, Doug Nazar wrote:
> Commit 8d7c4203 "nfsd: fix failure to set eof in readdir in some situations"
> breaks the nfsd server. Bisected it back to this commit and reverting it
> fixes the problem.

Ugh, thanks.  So the test case is just listing a big directory?  I must
have broken the case where we have to fill up multiple pages....

--b.

> However, it only happens on certain machines even with the same kernel &
> filesystem (ext3). I've two groups of similar computers, each group running
> identical kernels. The ones listing only ~250 files are of course in error.
> Eldritch is running 2.6.28-rc3 with that commit reverted. With 2.8.28-rc3 it
> showed the incorrect number.
> 
> 
> [root@...ad - Tue Nov 04 13:15:41]
> [/usr/src/linux] for f in golem eldritch slyph kobold basilisk faun  dryad
> nymph troll ogre banshee cockatrice; do echo $f $(ls -1 /net/$f/usr/bin/ |
> wc -l); done
> 
> golem 1082
> eldritch 1644
> slyph 1718
> kobold 1081
> basilisk 267
> faun 265
> 
> dryad 1595
> nymph 245
> troll 243
> ogre 243
> banshee 926
> cockatrice 237
> 
> 
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