Hey, all - Recently my btrfs filesystem started hanging forever when mounted read-write. However, mounting it readonly succeeded, so I backed up my oldest backup subvolume with `btrfs send` and then saved the rest of the backup subvolumes with `btrfs send -p`. Then I reformatted the filesystem.
However, upon trying to restore the initial subvolume with `btrfs
receive -vvvvv --max-errors 10`, I get:
mkfile o28626690-3011443-0
rename o28626690-3011443-0 -> var/lib/logrotate/status
utimes var/lib/logrotate
truncate var/lib/logrotate/status size=3D18897
chown var/lib/logrotate/status - uid=3D0, gid=3D0
chmod var/lib/logrotate/status - mode=3D0644
utimes var/lib/logrotate/status
mkfile o28626715-3011443-0
rename o28626715-3011443-0 -> var/lib/mlocate/mlocate.db
utimes var/lib/mlocate
ERROR: crc32 mismatch in command.
ERROR: read from stream failed. Bad address
ERROR: crc32 mismatch in command.
ERROR: read from stream failed. Bad address
ERROR: read from stream failed. Bad address
Segmentation fault
at the end. Any idea what could be going on?
Here are some details about my system:
% uname -a
Linux steevie 4.7.0-0.bpo.1-amd64 #1 SMP Debian 4.7.8-1~bpo8+1 (2016-10-19)
x86_64 GNU/Linux
% btrfs --version # Installed from Debian's jessie-backports
btrfs-progs v4.7.3
% sudo btrfs fi show
[sudo] password for alex:
Label: '[root]' uuid: 06c6565d-af6c-4123-9e42-3b6281f164e6
Total devices 3 FS bytes used 430.48GiB
devid 1 size 109.45GiB used 1.00GiB path /dev/mapper/sdc6_crypt
devid 2 size 931.47GiB used 460.04GiB path /dev/mapper/sda2_crypt
devid 3 size 931.47GiB used 461.04GiB path /dev/mapper/sdb2_crypt
warning, device 4 is missing
warning, device 3 is missing
bytenr mismatch, want=895655870464, have=0
ERROR: cannot read chunk root
Label: '[root]' uuid: 1c3126e2-2834-475b-92f2-853c1e13552b
Total devices 4 FS bytes used 414.79GiB
devid 5 size 109.45GiB used 3.00GiB path /dev/sdd6
*** Some devices missing
% sudo btrfs fi df /
Data, RAID1: total=455.00GiB, used=426.58GiB
System, RAID1: total=40.00MiB, used=96.00KiB
Metadata, RAID1: total=6.00GiB, used=3.90GiB
GlobalReserve, single: total=512.00MiB, used=0.00B
dmesg has a single relevant line:
> traps: btrfs[27981] general protection ip:7fec861d81bd sp:7ffff8911240
> error:0 in libc-2.19.so[7fec861a1000+1a1000]
The entire log is available at http://sprunge.us/UQWP. I know
pastebin-type services are discouraged on here, so sorry about that -
it's ~112K so my email got rejected when I sent it as an attachment.
Thanks in advance,
AJ
signature.asc
Description: PGP signature
