I've just realised (newbie here :-)) that /var/log/apt/history.* has information on package versions which may be useful.
Linux version before/after problem: Start-Date: 2021-01-28 15:42:31 Commandline: apt-get dist-upgrade Requested-By: ubuntu (1000) Install: linux-image-5.4.0-1028-raspi:arm64 (5.4.0-1028.31, automatic), linux-headers-5.4.0-1028-raspi:arm64 (5.4.0-1028.31, automatic), linux-modules-5.4.0-1028-raspi:arm64 (5.4.0-1028.31, automatic), linux-raspi-headers-5.4.0-1028:arm64 (5.4.0-1028.31, automatic) Upgrade: lshw:arm64 (02.18.85-0.3ubuntu2, 02.18.85-0.3ubuntu2.20.04.1), libc6:arm64 (2.31-0ubuntu9.1, 2.31-0ubuntu9.2), locales:arm64 (2.31-0ubuntu9.1, 2.31-0ubuntu9.2), libc-bin:arm64 (2.31-0ubuntu9.1, 2.31-0ubuntu9.2), linux-raspi:arm64 (5.4.0.1026.61, 5.4.0.1028.63), linux-image-raspi:arm64 (5.4.0.1026.61, 5.4.0.1028.63), linux-headers-raspi:arm64 (5.4.0.1026.61, 5.4.0.1028.63) End-Date: 2021-01-28 15:52:33 zfs versions (earlier version was running before and after problem started): Start-Date: 2021-02-01 14:07:23 Commandline: apt-get dist-upgrade Requested-By: ubuntu (1000) Upgrade: zfs-zed:arm64 (0.8.3-1ubuntu12.5, 0.8.3-1ubuntu12.6), zfsutils-linux:arm64 (0.8.3-1ubuntu12.5, 0.8.3-1ubuntu12.6), libzfs2linux:arm64 (0.8.3-1ubuntu12.5, 0.8.3-1ubuntu12.6), libzpool2linux:arm64 (0.8.3-1 ubuntu12.5, 0.8.3-1ubuntu12.6), libnvpair1linux:arm64 (0.8.3-1ubuntu12.5, 0.8.3-1ubuntu12.6), libuutil1linux:arm64 (0.8.3-1ubuntu12.5, 0.8.3-1ubuntu12.6) End-Date: 2021-02-01 14:08:43 -- 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
