From: Andi Kleen <andi@firstfloor.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Adam Nielsen <a.nielsen@shikadi.net>,
LKML Mailinglist <linux-kernel@vger.kernel.org>,
agk@redhat.com
Subject: Re: XFS internal error xfs_da_do_buf(1) at line 2015 of file fs/xfs/xfs_da_btree.c
Date: Sun, 04 Jan 2009 16:50:24 +0100 [thread overview]
Message-ID: <87aba7jcjj.fsf@basil.nowhere.org> (raw)
In-Reply-To: <20090104153401.GA16185@infradead.org> (Christoph Hellwig's message of "Sun, 4 Jan 2009 10:34:01 -0500")
Christoph Hellwig <hch@infradead.org> writes:
>
>> Of course certain distributions default to using LVM for all their file
>> systems which is completely and mindbogglingly bogus. That both messes up
>> barriers in some cases and takes a good 10-20% off performance when I've
>> benched it.
>
> The thing is that there's no reason for that at all with just a single
> underlying disk.
I've submitted patches to do exactly that in DM some time ago.
Unfortunately they still didn't make it in (as of 2.6.29 git) for unknown reasons.
-Andi
--
ak@linux.intel.com
next prev parent reply other threads:[~2009-01-04 15:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-04 1:16 XFS internal error xfs_da_do_buf(1) at line 2015 of file fs/xfs/xfs_da_btree.c Adam Nielsen
2009-01-04 7:46 ` Christoph Hellwig
2009-01-04 9:03 ` Adam Nielsen
2009-01-04 9:23 ` Christoph Hellwig
2009-01-04 11:44 ` Alan Cox
2009-01-04 15:34 ` Christoph Hellwig
2009-01-04 15:50 ` Andi Kleen [this message]
2009-01-05 5:12 ` markus reichelt
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