We have a reproducer now:
$ uname -a
Linux ln-sv-infr01 4.15.0-42-generic #45-Ubuntu SMP Thu Nov 15 19:32:57 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.7T 0 disk
├─sda1 8:1 0 512M 0 part /boot/efi
└─sda2 8:2 0 3.7T 0 part
├─ln--sv--infr01--vg-root 253:0 0 301G 0 lvm /
├─ln--sv--infr01--vg-swap_1
│ 253:1 0 976M 0 lvm [SWAP]
└─ln--sv--infr01--vg-var 253:2 0 3.4T 0 lvm
└─bcache0 252:0 0 3.4T 0 disk /var
nvme0n1 259:0 0 1.5T 0 disk
└─bcache0 252:0 0 3.4T 0 disk /var
$ sudo fstrim /var
# at this point it will immediately fail to kernel panic ... oops
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1793901
Title:
kernel oops in bcache module
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1793901/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
