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From: Lars Marowsky-Bree <lmb@suse.de>
To: Neil Brown <neilb@cse.unsw.edu.au>, Andre Tomt <andre@tomt.net>
Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
	mingo@redhat.com
Subject: Re: md: bug in file md.c, line 1440 (2.4.22)
Date: Wed, 3 Sep 2003 10:57:35 +0200	[thread overview]
Message-ID: <20030903085735.GB5762@marowsky-bree.de> (raw)
In-Reply-To: <16213.14893.955734.797630@gargle.gargle.HOWL>

On 2003-09-03T10:47:41,
   Neil Brown <neilb@cse.unsw.edu.au> said:

> I have not idea how it got the failed flag.

What's proven very helpful to figure out these things is to run a
test script against md, and just trying all the various possible actions
via mdadm or raidtools randomly.

I've done that for m-p, and while it's not pretty, it is _really_
helpful and has found all sorts of weird accounting bugs in the md code
(2.4 has many): ftp://ftp.suse.com/pub/people/lmb/md-mp/mp-test.sh - if
anyone feels like extending it to include raid5/raid1 etc, that would be
cool ;-)



Sincerely,
    Lars Marowsky-Brée <lmb@suse.de>

-- 
High Availability & Clustering		ever tried. ever failed. no matter.
SuSE Labs				try again. fail again. fail better.
Research & Development, SuSE Linux AG		-- Samuel Beckett


  parent reply	other threads:[~2003-09-03  8:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-30  3:19 Andre Tomt
2003-09-03  0:47 ` Neil Brown
2003-09-03  1:38   ` Mike Fedyk
2003-09-03  8:57   ` Lars Marowsky-Bree [this message]
2003-09-07  0:06   ` Andre Tomt

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