Hi Ronan, On Wed 08-03-17 15:22:53, ronisbr@gmail.com wrote:
Hi guys!
I want to start a discussion about BTRFS in Leap 42.3. As I stated in some old e-mails I sent to this ML, we have a critical bug that is affecting Tumbleweed and Leap 42.3 users on different kinds of machines (workstations, laptops, desktops, etc.) [1].
The systems becomes basically frozen when btrfs-maintenance script is executed. The cause is some problem with quotas.
Specifically it is O(n^3) quota group accounting algorithm in Btrfs code where `n' is the number of extent links. Given enough snapshots the system grinds to halt.
Indeed, the only workaround we know as of now is to completely disable quotas (or the btrfs-maintenance script, which is not good).
This is not an openSUSE bug, since a Gentoo user already reported it.
Correct. The same bug is in upstream kernel too.
Hence, should we start a discussion about if we really want to ship Leap 42.3 with quotas enabled by default?
We have reports also for the SUSE Linux Enterprise distro about this bug so it's surely going to be fixed. However, I have no ETA yet. Libor
Best regards, Ronan Arraes Jardim Chagas
-------- [1] https://bugzilla.opensuse.org/show_bug.cgi?id=1017461 -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
-- Libor Pechacek SUSE Labs -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org