linux-kernel - Re: EXT4 regression caused 4eec7

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Message-ID: <20130513170124.GJ400@quack.suse.cz>
Date:	Mon, 13 May 2013 19:01:24 +0200
From:	Jan Kara <jack@...e.cz>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	Dmitry Monakhov <dmonakhov@...nvz.org>,
	Theodore Ts'o <tytso@....edu>,
	EUNBONG SONG <eunb.song@...sung.com>, Jan Kara <jack@...e.cz>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-xfs@...r.kernel.org, Dave Chinner <david@...morbit.com>
Subject: Re: EXT4 regression caused 4eec7

On Mon 13-05-13 11:34:12, Eric Sandeen wrote:
> On 5/12/13 4:01 AM, Dmitry Monakhov wrote:
> > In fact '4eec70' are vexing because I have reviewed and tested this patch before
> > it was marked as Review-by, but missed the bug. This is because xfstests
> > was executed manually logs was full of warnings but tainted flag was not
> > checked at the end. 
> 
> Can you elaborate on this?  What was logged, and is it something we could
> try to pick up post-test in xfstests?
  Generally I think it might be useful if xfstests would fail / warn if
kernel became tainted during the test (e.g. due to WARN_ON or oops, or
something like that). It should be even relatively easy to implement
(just compare /proc/sys/kernel/tainted before and after each test).

								Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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