[Backport release-23.11] zfs: default disable zfs_dmu_offset_next_sync to avoid data corruption #270445
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
amarshall
reviewed
Nov 27, 2023
This helps mitigate a data corruption bug. This was previously defaulted to zero prior to upstream commit 05b3eb6d232009db247882a39d518e7282630753, and it is already a tunable, so doing this seems safe. Initially data corruption was thought to be introduced with v2.2, but further upstream investigation currently believes that changes in v2.2 only exacerbated the issue that already existed. A longer-term fix is likely to be openzfs/zfs#15571, though that is not yet merged. The zfs_2_1 package has already backported that, so do not apply the tunable default change there. Positioning of `extraPatches` is to avoid merge conflicts with NixOS#269097. Patch is nearly identical to the [Gentoo][1] patch, but better patch formatting. See openzfs/zfs#11900 See openzfs/zfs#15526 [1]: https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-fs/zfs-kmod/files/zfs-kmod-2.2.1-Disable-zfs_dmu_offset_next_sync-tunable-by-default.patch (cherry picked from commit 9670ddc)
adamcstephens
force-pushed
the
backport-270275-to-release-23.11
branch
from
e9495ed
to
9f2dc97
Compare
amarshall
approved these changes
Nov 27, 2023
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Description of changes
Manual backport of #270275
Things done
nix.conf? (See Nix manual)sandbox = relaxedsandbox = truenix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage./result/bin/)Priorities
Add a 馃憤 reaction to pull requests you find important.