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Enabling quota in zoned mored hits the following assertion:
$ mkfs.btrfs -f -d single -m single -R quota /dev/nullb0
btrfs-progs v5.11
See http://btrfs.wiki.kernel.org for more information.
Zoned: /dev/nullb0: host-managed device detected, setting zoned feature
Resetting device zones /dev/nullb0 (1600 zones) ...
bad tree block 25395200, bytenr mismatch, want=25395200, have=0
kernel-shared/disk-io.c:549: write_tree_block: BUG_ON `1` triggered, value 1
./mkfs.btrfs(+0x26aaa)[0x564d1a7ccaaa]
./mkfs.btrfs(write_tree_block+0xb8)[0x564d1a7cee29]
./mkfs.btrfs(__commit_transaction+0x91)[0x564d1a7e3740]
./mkfs.btrfs(btrfs_commit_transaction+0x135)[0x564d1a7e39aa]
./mkfs.btrfs(main+0x1fe9)[0x564d1a7b442a]
/lib64/libc.so.6(__libc_start_main+0xcd)[0x7f36377d37fd]
./mkfs.btrfs(_start+0x2a)[0x564d1a7b1fda]
zsh: IOT instruction sudo ./mkfs.btrfs -f -d single -m single -R quota /dev/nullb0
The issue occurs because btrfs_create_root() is not formatting the root
node properly. This is fine in regular mode, because it's fortunately
reusing an once freed buffer. As the previous tree node allocation
kindly formatted the header, it will see the proper bytenr and pass the
checks.
However, we never reuse a once freed buffer on zoned filesystem. As a
result, we have zero-filled bytenr, FSID, and chunk-tree UUID, hitting
the asserts in check_tree_block().
Reported-by: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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|---|---|---|
| .. | ||
| backref.c | ||
| backref.h | ||
| ctree.c | ||
| ctree.h | ||
| delayed-ref.c | ||
| delayed-ref.h | ||
| dir-item.c | ||
| disk-io.c | ||
| disk-io.h | ||
| extent_io.c | ||
| extent_io.h | ||
| extent-tree.c | ||
| file-item.c | ||
| file.c | ||
| free-space-cache.c | ||
| free-space-cache.h | ||
| free-space-tree.c | ||
| free-space-tree.h | ||
| inode-item.c | ||
| inode.c | ||
| print-tree.c | ||
| print-tree.h | ||
| root-tree.c | ||
| send.h | ||
| transaction.c | ||
| transaction.h | ||
| ulist.c | ||
| ulist.h | ||
| uuid-tree.c | ||
| volumes.c | ||
| volumes.h | ||
| zoned.c | ||
| zoned.h | ||