linux-kernel - Re: reiserfs broken in 2.6.32 was Re: [GIT PULL] reiserfs fixes

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Message-ID: <20100102233603.GO828@thunk.org>
Date:	Sat, 2 Jan 2010 18:36:03 -0500
From:	tytso@....edu
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Christian Kujau <lists@...dbynature.de>,
	Alexander Beregalov <a.beregalov@...il.com>,
	Chris Mason <chris.mason@...cle.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: reiserfs broken in 2.6.32 was Re: [GIT PULL] reiserfs fixes

On Sat, Jan 02, 2010 at 10:06:55PM +0100, Frederic Weisbecker wrote:
> 
> Thanks! I'm going to test it now. I've been running a stress test
> from Chris Mason which basically checks races on parallel writes/read.

Hmm, which test is this?

> If this testsuite includes more checks, like xattr and some other
> things, then that's exactly what I was searching.

Yes, quite a bit more than that.  One such test (which is used by
xfsqa test) is the fsstress proram, which is quite flexible.  You can
program different combinations of fallocate, direct I/O read/writes,
setxattr, buffered read/writes, symlinks, truncates, renames, etc..
The xfsqa suite will run fsstress in a number of different modes, but
that's not the only test program that it uses.  It also uses the fsx
program which exercises concurrent read/write/mmap operations, as well
as other programs to test acl support, noatime support, etc.

I make a point of running the regression test suite before pushing a
patch series to Linus; it makes me far more comfortable than I haven't
accidentally introduced some problem.

> I guess this is the right place to get it?
> 
> git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git

Yep.  You'll need to install a number of packages to compile it,
including libaio-dev, libattr1-dev, libacl1-dev, xfsprogs,
xfslibs-dev, etc.

						- Ted
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