From: Alasdair G Kergon <agk@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Can LVM block I/O and hang a system?
Date: Mon, 17 Sep 2007 22:23:20 +0100 [thread overview]
Message-ID: <20070917212320.GU18444@agk.fab.redhat.com> (raw)
In-Reply-To: <20070912101543.GA10093@barkeeper1.linbit>
On Wed, Sep 12, 2007 at 12:15:43PM +0200, Lars Ellenberg wrote:
> then, if there are still lockups, these may be caused by lvm, and may be
> due to some similar problem, namely doing synchronous (housekeeping) io
> from within the generic_make_request path within the same "thread".
We moved the housekeeping out of the way, but there can still be
problems when an incoming piece of I/O needs to be split between
devices.
Alasdair
--
agk@redhat.com
prev parent reply other threads:[~2007-09-17 21:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-12 7:09 [linux-lvm] Can LVM block I/O and hang a system? Maurice Volaski
2007-09-12 10:15 ` Lars Ellenberg
2007-09-17 21:23 ` Alasdair G Kergon [this message]
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