linux-kernel - Re: EXT4 regression caused 4eec7

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Message-ID: <51911E42.7010008@redhat.com>
Date:	Mon, 13 May 2013 12:09:22 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Jan Kara <jack@...e.cz>
CC:	Dmitry Monakhov <dmonakhov@...nvz.org>,
	"Theodore Ts'o" <tytso@....edu>,
	EUNBONG SONG <eunb.song@...sung.com>,
	"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 5/13/13 12:01 PM, Jan Kara wrote:
> 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
> 

Ah, right.  That should be easy, I'll see if I can cook that up.

Thanks,
-Eric
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