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[Bug 1017461] btrfs balance renders system unresponsive and eventually even kills WiFi when quota is enabled
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 06 Jan 2017 00:08:31 +0000
  • Message-id: <bug-1017461-21960-nOhKtSqzf1@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1017461
http://bugzilla.opensuse.org/show_bug.cgi?id=1017461#c24

--- Comment #24 from Richard Weinberger <richard@xxxxxx> ---
(In reply to Goldwyn Rodrigues from comment #23)
This is primarily caused with the patches for qgroup accounting (btrfs:
qgroup: Fix qgroup data leaking by using subtree tracing) correction which
calls btrfs_qgroup_trace_subtree() twice, one for the src tree and once for
dest tree. This function is CPU intensive which causes the system to stall.
We would have to investigate other ways to perform this correctly.

What do you suggest as workaround until the root cause is fixed?
Can I disable quotas? I'm not sure whether this will harm snapper.

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