From: Jens Axboe <jens.axboe@oracle.com>
To: "Alan D. Brunelle" <Alan.Brunelle@hp.com>
Cc: fio@vger.kernel.org
Subject: Re: Bug in fio: infinite loop when using two volumes crafted from one MD?
Date: Fri, 11 Sep 2009 22:23:06 +0200 [thread overview]
Message-ID: <20090911202306.GR14984@kernel.dk> (raw)
In-Reply-To: <1252700200.5814.32.camel@cail>
On Fri, Sep 11 2009, Alan D. Brunelle wrote:
> On Fri, 2009-09-11 at 21:34 +0200, Jens Axboe wrote:
> > On Fri, Sep 11 2009, Alan D. Brunelle wrote:
> > > Well, the attached patch appears to fix the problem: When looking to add
> > > an underlying device we first check to see if its in the list of current
> > > devices. If so, we skip this add.
> > >
> > > As I know next to nothing about the innards of fio, I'd be a little
> > > leery of taking this in, but at least it allows me to proceed! :-)
> >
> > OK, so it's probably corrupting the list on a double insert. Your check
> > is likely fine, even if there are alternative ways we could fix this.
> > I'll add it for now, thanks for debugging this Alan!
> >
>
> It worked fine w/ my full test (all 12 LVM2/DM volumes being accessed on
> the same underlying MD RAID10 array). So that's goodness...
Great, thanks for re-testing!
--
Jens Axboe
next prev parent reply other threads:[~2009-09-11 20:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-11 15:59 Bug in fio: infinite loop when using two volumes crafted from one MD? Alan D. Brunelle
2009-09-11 16:35 ` Jens Axboe
2009-09-11 19:03 ` Alan D. Brunelle
2009-09-11 19:34 ` Jens Axboe
2009-09-11 20:16 ` Alan D. Brunelle
2009-09-11 20:23 ` Jens Axboe [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-10-23 3:12 Glen Ogilvie
2009-10-23 4:23 ` Jens Axboe
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