Going back through logfiles the first occurrence is Jan 29 12:27:52 donny kernel: [72122.085286] PANIC at zfs_vfsops.c:585:zfs_space_delta_cb()
So it seems to have started after I upgraded from Linux version 5.4.0-1026-raspi to 1028 Jan 27 04:27:18 donny kernel: [ 0.000000] Linux version 5.4.0-1026-raspi (buildd@bos02-arm64-062) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #29-Ubuntu SMP PREEMPT Mon Dec 14 17:01:16 UTC 2020 (Ubuntu 5.4.0-1026.29-raspi 5.4.78) Jan 28 16:25:31 donny kernel: [ 0.000000] Linux version 5.4.0-1028-raspi (buildd@bos02-arm64-034) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #31-Ubuntu SMP PREEMPT Wed Jan 20 11:30:45 UTC 2021 (Ubuntu 5.4.0-1028.31-raspi 5.4.78) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1914287 Title: PANIC at zfs_vfsops.c:585:zfs_space_delta_cb / VERIFY3(sa.sa_magic == SA_MAGIC) failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1914287/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs