Ubuntu
zfs-linux package

  1. Bug #2044657
  2. Comment #21

Comment 21 for bug 2044657

Revision history for this message
Tony Phan (toekneefan) wrote : Re: zfs block cloning file system corruption

@mafoelffen I'm sure the developers are hard at work with this and other issues.

Ubuntu LTS, I believe, does not yet have coreutils v9, so it is unlikely to be affected. This bug is actually extremely old (possibly going back almost two decades), but recent changes, such as a change to zfs_dmu_offset_next_sync and use of SEEK_HOLE in cp of coreutils increased the likelihood of this bug manifesting.

According to recent comments by OpenZFS contributors, this bug actually seems unrelated to block cloning, though they are keeping it off by default to be safe (https://gist.github.com/rincebrain/e23b4a39aba3fadc04db18574d30dc73) in case there are other unknown bugs/interactions. So 2.2.1 is actually a false patch, and 2.2.2 is the real one, grounded in more evidence and investigation of the bug.