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To: linux-btrfs <linux-btrfs@vger.kernel.org>
From: Su Yue <suy.fnst@cn.fujitsu.com>
Subject: xfstests/btrfs/125 with space_cache=v2 fails
Message-ID: <063975fc-ae59-0f11-e583-31df92e30af4@cn.fujitsu.com>
Date: Wed, 17 Jan 2018 17:29:47 +0800
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Sender: linux-btrfs-owner@vger.kernel.org
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Hi.

While running xfstests/btrfs/125 with mount option 'space_cache=v2' on
Linux-4.10-rc1, 4.15-rc1 and 4.15-rc7, it *may* fail due to failure of
btrfs balance then hungs.

Btrfs progs version is 4.14.
And log:

https://drive.google.com/file/d/1HcurPjc9PfILg2Zj5z0VvF7g-OqgJnUK/view?usp=sharing
https://drive.google.com/file/d/16GtaFoXnDsoH2psxtXu905CvnJB5HzR6/view?usp=sharing
https://drive.google.com/file/d/1YWQIgnG1f7REO146VGiv4N-jD8uThdU3/view?usp=sharing

I wonder it is a bug of btrfs balance or something.

Thanks,
Su