linux-kernel - Re: [PATCH v2 00/12] btrfs: add zstd compression level support

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Message-ID: <20190205165113.GU2900@suse.cz>
Date:   Tue, 5 Feb 2019 17:51:13 +0100
From:   David Sterba <dsterba@...e.cz>
To:     Dennis Zhou <dennis@...nel.org>
Cc:     David Sterba <dsterba@...e.com>,
        Josef Bacik <josef@...icpanda.com>, Chris Mason <clm@...com>,
        Omar Sandoval <osandov@...ndov.com>,
        Nick Terrell <terrelln@...com>,
        Nikolay Borisov <nborisov@...e.com>, kernel-team@...com,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/12] btrfs: add zstd compression level support

On Tue, Feb 05, 2019 at 11:30:12AM -0500, Dennis Zhou wrote:
> > > > Something is wrong, the patchset on top of 5.0-rc5 hangs in test
> > > > btrfs/007, without a stacktrace. V1 was fine and I double checked that
> > > > rc5 itself is fine.
> > > 
> > > Hmmm, well that's awkward. I ran xfstests and that test passed on my
> > > machine. I'll figure out the delta and submit a v3. Thanks David!
> > 
> > It failed on a VM and 2 other physical machines, so it's not somethig
> > related to the testing setup.
> 
> Oh, I wasn't alluding to that. I'm more that sure it's my fault
> somewhere along the line.

Hang on, it's probably caused by fstests, as fssum is busy waiting
somewhere, so it's not even kernel code.

fstests a4235f29f780b15d9e87c0f2446a53b9e69c5e2d -- ok
fstests 6d17c9076fe9d97d2411e5909e6b255e5e721fc3 (master) -- hangs