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docs: expand the tree mod log issues

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The fixes appear inconsistently in stable/LTS kernels, so they can't be
mashed into a single row.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell 2020-10-09 17:16:06 -04:00
parent dceea2ebbc
commit 217f5c781b
1 changed files with 5 additions and 3 deletions
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8
docs/btrfs-kernel.md
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@ -40,11 +40,13 @@ These bugs are particularly popular among bees users:
| - | 5.1 | send failure or kernel crash while running send and dedupe on same snapshot at same time | 5.0.18, 5.1.4, 5.2 and later | 62d54f3a7fa2 Btrfs: fix race between send and deduplication that lead to failures and crashes
| - | 5.2 | alternating send and dedupe results in incremental send failure | 4.9.188, 4.14.137, 4.19.65, 5.2.7, 5.3 and later | b4f9a1a87a48 Btrfs: fix incremental send failure after deduplication
| - | 5.3 | balance convert to single rejected with error on 32-bit CPUs | 5.3.7, 5.4 and later | 7a54789074a5 btrfs: fix balance convert to single on 32-bit host CPUs
| - | 5.4 | send performance failure when shared extents have too many references | 4.9.207, 4.14.159, 4.19.90, 5.3.17, 5.4.4, 5.5 and later | fd0ddbe25095 Btrfs: send, skip backreference walking for extents with many references
| - | 5.3 | kernel crash due to tree mod log issue #1 (often triggered by bees) | 3.16.79, 4.4.195, 4.9.195, 4.14.147, 4.19.77, 5.2.19, 5.3.4, 5.4 and later | efad8a853ad2 Btrfs: fix use-after-free when using the tree modification log
| - | 5.4 | kernel crash due to tree mod log issue #2 (often triggered by bees) | 3.16.83, 4.4.208, 4.9.208, 4.14.161, 4.19.92, 5.4.7, 5.5 and later | 6609fee8897a Btrfs: fix removal logic of the tree mod log that leads to use-after-free issues
| 5.1 | 5.4 | metadata corruption resulting in loss of filesystem when a write operation occurs while balance starts a new block group. **Do not use kernel 5.1 with btrfs.** Kernel 5.2 and 5.3 have workarounds that may detect corruption in progress and abort before it becomes permanent, but do not prevent corruption from occurring. | 5.4.14, 5.5 and later | 6282675e6708 btrfs: relocation: fix reloc_root lifespan and access
| 4.5, backported to 3.18.31, 4.1.22, 4.4.4 | 5.5 | `df` incorrectly reports 0 free space while data space is available. Triggered by changes in metadata size, including those typical of large-scale dedupe. Occurs more often starting in 5.3 and especially 5.4 | 4.4.213, 4.9.213, 4.14.170, 4.19.102, 5.4.18, 5.5.2, 5.6 and later | d55966c4279b btrfs: do not zero f_bavail if we have available space
| - | 5.5 | kernel crashes due to various tree mod log issues (often triggered by bees) | 3.16.84, 4.4.214, 4.9.214, 4.14.171, 4.19.103, 5.4.19, 5.5.3, 5.6 and later | at least 3, last is 7227ff4de55d Btrfs: fix race between adding and putting tree mod seq elements and nodes
| - | 5.4 | send performance failure when shared extents have too many references | 4.9.207, 4.14.159, 4.19.90, 5.3.17, 5.4.4, 5.5 and later | fd0ddbe25095 Btrfs: send, skip backreference walking for extents with many references
| 5.0 | 5.5 | dedupe fails to remove the last extent in a file if the file size is not a multiple of 4K | 5.4.19, 5.5.3, 5.6 and later | 831d2fa25ab8 Btrfs: make deduplication with range including the last block work
| 4.5, backported to 3.18.31, 4.1.22, 4.4.4 | 5.5 | `df` incorrectly reports 0 free space while data space is available. Triggered by changes in metadata size, including those typical of large-scale dedupe. Occurs more often starting in 5.3 and especially 5.4 | 4.4.213, 4.9.213, 4.14.170, 4.19.102, 5.4.18, 5.5.2, 5.6 and later | d55966c4279b btrfs: do not zero f_bavail if we have available space
| - | 5.5 | kernel crash due to tree mod log issue #3 (often triggered by bees) | 3.16.84, 4.4.214, 4.9.214, 4.14.171, 4.19.103, 5.4.19, 5.5.3, 5.6 and later | 7227ff4de55d Btrfs: fix race between adding and putting tree mod seq elements and nodes
| - | 5.6 | deadlock when enumerating file references to physical extent addresses while some references still exist in deleted subvols | 5.7 and later | 39dba8739c4e btrfs: do not resolve backrefs for roots that are being deleted
| - | 5.6 | deadlock when many extent reference updates are pending and available memory is low | 4.14.177, 4.19.116, 5.4.33, 5.5.18, 5.6.5, 5.7 and later | 351cbf6e4410 btrfs: use nofs allocations for running delayed items
| - | 5.6 | excessive CPU usage in `LOGICAL_INO` ioctl and increased btrfs write latency in other processes when bees translates from extent physical address to list of referencing files and offsets | 5.7 and later | b25b0b871f20 btrfs: backref, use correct count to resolve normal data refs, plus 3 parent commits. Some improvements also in earlier kernels.