Mailinglist Archive: opensuse-bugs (4227 mails)

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[Bug 1017461] btrfs balance renders system unresponsive and eventually even kills WiFi
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Mon, 02 Jan 2017 22:44:55 +0000
  • Message-id: <bug-1017461-21960-2LIbJ51fA1@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1017461
http://bugzilla.opensuse.org/show_bug.cgi?id=1017461#c6

--- Comment #6 from Richard Weinberger <richard@xxxxxx> ---
(In reply to Ronan Chagas from comment #4)
Hi guys!

Yes, this is a **very** serious problem. I have already reported that my
system is unresponsive every time btrfs maintenance starts, and I am using
Tumbleweed. I posted to the mailing list, but received just one answer:

https://lists.opensuse.org/opensuse-factory/2016-09/msg00130.html

Indeed, when I **disabled** quotas here, then the freeze stopped. Thanks for
that workaround! Actually, a btrfs developer (Chris Murphy) has already
warned that the quota feature is not stable in btrfs and must not be used by
default on production systems:

https://lists.opensuse.org/opensuse-factory/2016-09/msg00032.html

However, some openSUSE developers contradicted Chris, specially Richard
Brown:

https://lists.opensuse.org/opensuse-factory/2016-09/msg00085.html

Hence, nobody took the advice and quotas were enabled by default in Leap
42.2.

Maybe now with this bug, which I can confirm that is happening in **all** my
machines with quotas enabled (HP Workstation, Dell laptop, and a Macbook),
this problem can be revisited. Furthermore, disabling quota fixes it also in
all my machines.

Hmmm, I fear quotas are enabled because of snapper(8). It seems to use them
for some clean-up policies.

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