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https://github.com/kdave/btrfs-progs
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788e30f7ea
[BUG]
Test case misc/034 can fail like this:
====== RUN CHECK mount /dev/loop16 /home/adam/btrfs-progs/tests/mnt
mount: /home/adam/btrfs-progs/tests/mnt: wrong fs type, bad option, bad superblock on /dev/loop16, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
failed: mount /dev/loop16 /home/adam/btrfs-progs/tests/mnt
And the dmesg looks like this:
loop16: detected capacity change from 0 to 1024000
loop17: detected capacity change from 0 to 1024000
BTRFS: device fsid 593e23af-a7e6-4360-b16a-229f415de697 devid 1 transid 6 /dev/loop16 scanned by mount (79348)
BTRFS info (device loop16): using crc32c (crc32c-intel) checksum algorithm
BTRFS info (device loop16): found metadata UUID change in progress flag, clearing
BTRFS info (device loop16): disk space caching is enabled
BTRFS error (device loop16): devid 2 uuid cde07de6-db7e-4b34-909e-d3db6e7c0b06 is missing
BTRFS error (device loop16): failed to read the system array: -2
BTRFS error (device loop16): open_ctree failed
[CAUSE]
From the dmesg, it shows that although both loopback devices are
properly registered, only one is properly scanned by mount.
Thus the other device is missing, and without "-o degraded" the
filesystem failed to be mounted.
[FIX]
Before we mount the filesystem, also scan them in their passed order
to properly assemble the device list for mount.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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|---|---|---|
| .. | ||
| 001-btrfstune-features | ||
| 002-uuid-rewrite | ||
| 003-zero-log | ||
| 004-shrink-fs | ||
| 005-convert-progress-thread-crash | ||
| 006-image-on-missing-device | ||
| 007-subvolume-sync | ||
| 008-leaf-crossing-stripes | ||
| 009-subvolume-sync-must-wait | ||
| 010-convert-delete-ext2-subvol | ||
| 011-delete-missing-device | ||
| 012-find-root-no-result | ||
| 013-subvolume-sync-crash | ||
| 014-filesystem-label | ||
| 015-dump-super-garbage | ||
| 016-send-clone-src | ||
| 017-recv-stream-malformatted | ||
| 018-recv-end-of-stream | ||
| 019-receive-clones-on-mounted-subvol | ||
| 020-fix-superblock-corruption | ||
| 021-image-multi-devices | ||
| 022-filesystem-du-on-empty-subvol | ||
| 023-device-usage-with-missing-device | ||
| 024-inspect-internal-rootid | ||
| 025-zstd-compression | ||
| 026-image-non-printable-chars | ||
| 027-subvol-list-deleted-toplevel | ||
| 028-superblock-recover | ||
| 029-send-p-different-mountpoints | ||
| 030-missing-device-image | ||
| 031-qgroup-parent-child-relation | ||
| 032-bad-item-ptr | ||
| 033-filename-length-limit | ||
| 034-metadata-uuid | ||
| 035-receive-common-mount-point-prefix | ||
| 036-receive-dump-invalid-stream | ||
| 037-fi-show-on-new-file | ||
| 038-backup-root-corruption | ||
| 039-receive-clone-from-current-subvolume | ||
| 040-subvolume-delete-default | ||
| 041-subvolume-delete-during-send | ||
| 042-inspect-internal-logical-resolve | ||
| 043-subvolume-set-default-toplevel | ||
| 045-receive-check-mount-type | ||
| 046-seed-multi-mount | ||
| 047-raid5-convert | ||
| 048-image-restore-mount | ||
| 049-btrfstune-transid-mismatch | ||
| 050-receive-prop-ro-to-rw | ||
| 051-warning-rw-subvol-received-uuid | ||
| 052-seed-dirty-log | ||
| 053-receive-write-encoded | ||
| 054-receive-dump-newlines | ||
| 055-qgroup-clear-stale | ||
| 056-subvolume-list-uuid | ||