The HN thread is worth a read if you’re running ZFS.

n8henrie 10 hours ago | prev | next [–]

For those just wondering “am I affected?”, my understanding is:

zpool get all | grep bclone

If the result is 0 for both bcloneused and bclonesaved then it’s safe to say that you don’t have silent corruption. [0]

People are using reproducer.sh (https://gist.github.com/tonyhutter/d69f305508ae3b7ff6e9263b22031a84#file-reproducer-sh) to see if they can reproduce the bug intentionally: [1]

https://github.com/0x0177b11f/zfs-issue-15526-check-file tries to find potentially corrupted files (with some risk of false positives) by searching for zero-byte blocks: [2]

[0]: https://github.com/openzfs/zfs/issues/15526#issuecomment-1810819382

[1]: https://github.com/openzfs/zfs/issues/15526#issuecomment-1823575126

[2]: https://github.com/openzfs/zfs/issues/15526#issuecomment-1826453702