From: "Stephen R. van den Berg" <srb@cuci.nl>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: Kernel traces
Date: Fri, 28 Dec 2018 16:00:16 +0100 [thread overview]
Message-ID: <20181228150016.GB13717@cuci.nl> (raw)
In-Reply-To: <e816d264-839b-a2b0-9787-755a6ac2d103@gmx.com>
Qu Wenruo wrote:
>On 2018/12/28 ??????9:40, Stephen R. van den Berg wrote:
>>> It's caused by qgroup, and a dead lock on btrfs_drop_snapshot().
>>> This is one of the easiest way to trigger an ABBA deadlock.
>>> Please either disable qgroup or apply this patch to solve it:
>>> https://patchwork.kernel.org/patch/10725371/
Ok, booting the system in v4.20 with this patch. I'll report back if
it does not resolve the problem.
--
Stephen.
next prev parent reply other threads:[~2018-12-28 15:00 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 12:05 Kernel traces Stephen R. van den Berg
2018-12-10 16:54 ` Chris Murphy
2018-12-11 11:52 ` Stephen R. van den Berg
2018-12-12 6:16 ` Chris Murphy
2018-12-12 7:26 ` Stephen R. van den Berg
2018-12-12 21:01 ` Chris Murphy
2018-12-28 9:20 ` Stephen R. van den Berg
2018-12-28 10:10 ` Qu Wenruo
2018-12-28 13:40 ` Stephen R. van den Berg
2018-12-28 13:46 ` Qu Wenruo
2018-12-28 15:00 ` Stephen R. van den Berg [this message]
2019-01-23 15:50 ` Stephen R. van den Berg
2019-01-25 8:01 ` New hang (Re: Kernel traces), sysreq+w output Stephen R. van den Berg
2019-01-25 8:04 ` Stephen R. van den Berg
2019-02-05 22:18 ` Stephen R. van den Berg
2019-02-06 0:22 ` Qu Wenruo
2019-02-06 0:36 ` Martin Raiber
2019-07-26 16:31 ` qgroup: Don't trigger backref walk at delayed ref insert time (Re: Kernel traces) Stephen R. van den Berg
2019-07-26 23:24 ` Qu Wenruo
2018-12-11 15:21 Kernel traces Tomasz Chmielewski
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