* Misleading "out of memory" in btrfs check for qgroups
@ 2022-03-17 5:16 Andrei Borzenkov
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From: Andrei Borzenkov @ 2022-03-17 5:16 UTC (permalink / raw)
To: linux-btrfs
root@ubuntu:~# btrfs check /dev/nvme0n1p5
Opening filesystem to check...
Checking filesystem on /dev/nvme0n1p5
UUID: 6afe1f98-2fc5-4dd7-a22f-0b9e2f514a71
[1/7] checking root items
[2/7] checking extents
[3/7] checking free space cache
cache and super generation don't match, space cache will be invalidated
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups
ERROR: out of memory
ERROR: Loading qgroups from disk: -2
ERROR: failed to check quota groups
found 65546706944 bytes used, error(s) found
total csum bytes: 59958768
total tree bytes: 1668497408
total fs tree bytes: 1538752512
total extent tree bytes: 53886976
btree space waste bytes: 264382931
file data blocks allocated: 321153744896
referenced 97287462912
extent buffer leak: start 300026445824 len 16384
extent buffer leak: start 300063735808 len 16384
-2 == ENOENT, but load_quota_info() prints "out of memory" for any
error. This leads to rather misguided attempt to "fix" it.
This was reported in
https://forums.opensuse.org/showthread.php/567851-btrfs-fails-to-load-qgroups-from-disk-with-error-2-(out-of-memory)
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2022-03-17 5:16 Misleading "out of memory" in btrfs check for qgroups Andrei Borzenkov
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