linux-ext4 - Re: [BUG] softlockup observed with 64k block size on ppc64

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Message-Id: <17387849.5EiRHCrpou@localhost.localdomain>
Date:   Tue, 25 Oct 2016 18:49:54 +0530
From:   Chandan Rajendra <chandan@...ux.vnet.ibm.com>
To:     Jan Kara <jack@...e.cz>
Cc:     linux-ext4@...r.kernel.org, tytso@....edu
Subject: Re: [BUG] softlockup observed with 64k block size on ppc64

On Tuesday, October 25, 2016 10:13:19 AM Jan Kara wrote:
> Hi!
> 
> On Mon 24-10-16 14:10:02, Chandan Rajendra wrote:
> > The following soft lockup occurs when fstests' ext4/303 test is executed with
> > 64k block size on a ppc64 machine running linux-4.8 kernel.
> 
> Thanks for report! I had a look into the code and I'm not sure why this
> happens. Is this reproducible? Did it happen also with older kernels?

Yes, This issue can be recreated every single time the test is executed. The
bug is present atleast from linux-v4.0 version. I haven't verified if the bug
is present in earlier versions of the kernel.

-- 
chandan

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