From: bugzilla-daemon@bugzilla.kernel.org
To: linux-xfs@kernel.org
Subject: [Bug 200981] hypervisor fs hangs at heavy write activity on VM (kvm, qcow2 image) having a reflink disk copy
Date: Thu, 06 Sep 2018 05:39:18 +0000 [thread overview]
Message-ID: <bug-200981-201763-rdwlaZA2Wd@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-200981-201763@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=200981
--- Comment #7 from Alexander Y. Fomichev (git.user@gmail.com) ---
Ok, it looks like a warning is a result of missing sb_end_intwrite in
xfs_reflink_allocate_cow, namely in a sequence xfs_trans_alloc -> goto retry ->
goto convert. With proof-of-concept patch (attached) warning is gone but
deadlock is not. Though now I have a list of held locks (dmesg attached).
Did you mean taintad kernel will not show locks held?
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next prev parent reply other threads:[~2018-09-06 10:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-30 14:32 [Bug 200981] New: hypervisor fs hangs at heavy write activity on VM (kvm, qcow2 image) having a reflink disk copy bugzilla-daemon
2018-08-30 14:34 ` [Bug 200981] " bugzilla-daemon
2018-08-31 1:26 ` bugzilla-daemon
2018-08-31 7:39 ` bugzilla-daemon
2018-09-01 5:01 ` bugzilla-daemon
2018-09-06 5:36 ` bugzilla-daemon
2018-09-06 5:37 ` bugzilla-daemon
2018-09-06 5:39 ` bugzilla-daemon [this message]
2018-09-06 14:25 ` bugzilla-daemon
2018-09-06 16:52 ` bugzilla-daemon
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