linux-ext4 - Re: [BUG] xfstests #68 with data=journal hang against 3.8-rc7 and 'dev' branch

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Date:	Tue, 19 Feb 2013 01:33:26 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Theodore Ts'o <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [BUG] xfstests #68 with data=journal hang against 3.8-rc7 and
 'dev' branch

On Mon, Feb 18, 2013 at 12:04:22AM -0500, Theodore Ts'o wrote:
> On Mon, Feb 18, 2013 at 01:22:08AM +0800, Zheng Liu wrote:
> > Hi all,
> > 
> > Xfstests #68 will hang with data=journal in 3.8-rc7 and 'dev' branch. I
> > remember that there has a patch for ext4 to fix filesystem freeze bug
> > but I am not sure whether it can fix this bug and it has been applied
> > into 'dev' branch.  So I file this bug here.
> 
> Hmm.... I have never seen this test fail with my tests (although I'm
> just using the dev branch; I have not tried merging in 3.8-rc7 into
> the dev branch for any of my tests).
> 
> Is it failing for you reliably?

I dig this bug again and I always reproduce it in my own machine with
SSD disk in 3.8-rc7 and dev branch.  But, interestingly, I run the same
test case in another machine, which is the same as previous one except
that it only has a HDD, and I never trigger this bug.  So it seems that
this bug could be triggered in a high-speed device, but we need to
verify this conclusion.  Sorry I haven't another server with SSD/Flash
device to run test case.  That would be great if others could give it a
try.

Thanks,
                                                - Zheng
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