[tomek@vz]

A pull request has been merged to fix a data corruption issue in OpenZFS (the open-source implementation of the ZFS file system and volume manager). "OpenZFS 2.2.2 and 2.1.14 released with fix in place," reports a Thursday comment on GitHub.

All versions of OpenZFS 2.2 suffer from a defect that can corrupt the data. Attempts to mitigate the bug have reduced the likelihood of it occurring, but so far nobody has been able to pinpoint what is going wrong or why.

Phoronix reported on Monday: Over the US holiday weekend it became more clear that this OpenZFS data corruption bug isn't isolated to just the v2.2 release — older versions are also susceptible — and that v2.2.1 is still prone to possible data corruption. The good news at least is that data corruption in real-world scenarios is believed to be limited but with some scripting help the corruption can be reproduced. It's also now believed that the OpenZFS 2.2 block cloning feature just makes encountering the problem more likely.