On Tue, Jan 12, 2021 at 12:24 AM Sreyan Chakravarty <sreyan32@xxxxxxxxx> wrote: > > On Sat, Jan 9, 2021 at 11:55 AM Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: > > > > > > So thanks > > for not giving up. > > > > Actually it is me who should be thanking you for not giving up. > > For me giving up was not an option since that would involve me losing > all my data. > > Thank you again for your time and patience, others would have told me > to reinstall my OS or restore my backups. > > > > sudo dnf install > > https://download.copr.fedorainfracloud.org/results/ngompa/btrfsprogs-robustimg/fedora-33-x86_64/01873195-btrfs-progs/btrfs-progs-5.9+git20210108.3783313-0.fc33.1.x86_64.rpm > > > > Ok, I finally have some good news and some minor bad news hopefully. > > Good news first. > > It worked, I can now mount my BTRFS root file system: > > # mount -t btrfs /dev/mapper/dm_crypt /mnt/ > # ll /mnt > # total 0 > drwxr-xr-x. 1 root root 0 Jan 12 00:00 before_live_cd_exp > dr-xr-xr-x. 1 root root 178 Dec 14 14:58 root > dr-xr-xr-x. 1 root root 178 Dec 14 14:58 stable_15_Dec > drw-------. 1 root root 22 Dec 11 20:05 swap > > > Now to give you the output of the commands and the minor bad news: > > 1) btrfs check --repair /dev/mapper/dm_crypt > > This command actually executed and exited normally, but I could > see some errors at the end of the command. > > Full output of repair command over here: > https://drive.google.com/file/d/17EQ5TYJE5a4iwRGTXXj9Hh38btxFBLAJ/view?usp=sharing > > 2) btrfs check --init-csum-tree /dev/mapper/dm_crypt > > This is where the minor bad news happens. > > This command exited with a "Segmentation Fault(Core Dumped)" > > Full output here: > https://drive.google.com/file/d/1IYnLcw-vkZ2UeH0rOZje4kbhzB_tYaKy/view?usp=sharing > > I have my core dumps set to unlimited: > > # ulimit -a > core file size (blocks, -c) unlimited > data seg size (kbytes, -d) unlimited > scheduling priority (-e) 0 > file size (blocks, -f) unlimited > pending signals (-i) 31030 > max locked memory (kbytes, -l) 64 > max memory size (kbytes, -m) unlimited > open files (-n) 1024 > pipe size (512 bytes, -p) 8 > POSIX message queues (bytes, -q) 819200 > real-time priority (-r) 0 > stack size (kbytes, -s) 8192 > cpu time (seconds, -t) unlimited > max user processes (-u) 31030 > virtual memory (kbytes, -v) unlimited > file locks (-x) unlimited > > But still I was unable to get coredump file as it was not generated: > > # coredumpctl list btrfs > TIME PID UID GID SIG COREFILE EXE > Mon 2021-01-11 22:58:18 IST 4337 0 0 11 none /usr/sbin/btrfs > > Which is weird. > > All the outputs are compressed using GZIP, let me know if you are > unable to download them. The repair command was run before the > init-csum-tree command. > > I have also used your enhanced version of btrfs-progs that you provided: > > # dnf repoquery --installed btrfs-progs > btrfs-progs-0:5.9+git20210108.3783313-0.fc33.1.x86_64 > > Let me know the next steps ie. Do you need BTRFS logs to diagnose the > root cause of the problem ? > > Thank you once again for your help and perseverance. Couldn't have > done it without you. Sorry missed to include the dmesg error for the init-csum-tree command: [34922.980911] btrfs[4337]: segfault at 60 ip 00005625672ebf81 sp 00007ffee2b38180 error 4 in btrfs[562567287000+96000] [34922.980939] Code: a0 00 00 00 00 00 00 00 e8 5c a3 ff ff 8b 4c 24 50 4c 89 fe 85 c0 0f 44 44 24 38 45 31 c0 89 44 24 38 48 8b 84 24 a0 00 00 0 0 <8b> 40 60 49 29 87 d0 00 00 00 6a 00 55 4c 8b 9c 24 90 00 00 00 48 [35498.885297] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun Guess it was caused by some sort of underrun. -- Regards, Sreyan Chakravarty _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
