linux-ext4 - Re: Ext4 deadlock (+lockdep splat) during rsync

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Message-ID: <20170110072501.1271.qmail@ns.sciencehorizons.net>
Date:   10 Jan 2017 02:25:01 -0500
From:   "George Spelvin" <linux@...encehorizons.net>
To:     linux@...encehorizons.net, tytso@....edu
Cc:     linux-ext4@...r.kernel.org
Subject: Re: Ext4 deadlock (+lockdep splat) during rsync

> Thanks for the bug report!  I'm able to reproduce this, so it's a
> matter of my tracking down the bug.

Hooray!  And thank you; I don't know why I hit so many ext4 bugs.

> In the meantime, do you need a workaround?  If you're not using the
> new project quota feature, I can send you a quick patch to disable
> attempts to move the extended attributes to resereve space for the
> project ID --- this is what is causing the deadlock.

If it's very little bother, I'd appreciate it, but if you expect to
have something more complete by the end of the week, I can wait
that long.

I didn't think I was using extended attributes at all, so the
limitation is fine.
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