Same thing since I upgraded to 4.15.0-151-generic on my laptop.
Previously had 150+ days of uptime, now it crashes every few days, and
up to 3 times a day.
Very similar behaviour than what Martin reported just above: when
logging in to XFCE, it can crash easily, or when simply using the
Desktop. W
I see, thanks for the info.
I'll report my findings so far here, in case it turns out useful to some
future person landing on this bug later:
The call trace of the deadlocked btrfs-cleaner kthread is as follows.
Tainted: P OE4.15.0-45-generic #48-Ubuntu
btrfs-cleaner D0
I confirm I'm having this problem too since migrating to Bionic from
Xenial.
My setup is a bit analogous to the original bug reporter: I have 5
drives (22 TB) in RAID1, organized in around 10 subvolumes with up to 20
snapshots per subvolume.
After some hours running normally, at some point [btrfs
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