Hi there,
I have an odd issue where my root partition, which is in BTRFS, seems be causing kernel panics somewhat sporadically (for the past 10 hours now): oftentimes at boot, sometimes once X is started. Here is an example of the panic: http://imgur.com/VfmZVX5 . The main culprit, I belive, is “kernel BUG at …/btrfs/extent-tree.c:884!”.
The computer is an Acer E5 573 laptop running a hyperthreaded i3 core. It’s as good as new: it’s about a year old and has been barely used since purchase. The Leap 42.2 installation is six days old (yes days). My /home is in ext4.
smartctrl reports perfect health: a short test was “completed without error”, all the “vendor attributes” are shown with nothing in the “when failed column.”
The update to kernel 4.4.49 comes from today (along with a number of other updates I suppose). A rollback to a previous snapshot does not solve the issue either. I noticed that several of the newer snapshots only have a “pre” and no “post”, and I don’t know whether that is normal or not. In addition, booting on the previous kernel also leads the following sporadic behavior, supposing I was able to boot (which does not always happen):
In user land, all is good and happy. Then, the wifi starts to become painfully slow (and it isn’t a network issue). Any opened shell as root stalls completely (earlier is stalled while running zypper right after downloading memtest86, and prior to starting the installation). It then becomes impossible to open any new root shell. None of the TTYs are responsive: I can switch to them, and back to X, but the shell remains a totally black screen.
I have genuinely no idea what the heck could be going on so any and every hint is appreciated.
Thanks