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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278099 --- Comment #6 from Xin LI <delphij@FreeBSD.org> --- (In reply to Alexander Motin from comment #3) For future reference in case someone wanted to give this a shot, the concer= ns at OpenZFS[1] was that different versions of zstd may [2] generate different output for the same data. When compressed ARC is disabled (enabled by default), ARC would only have a copy of uncompressed data, but the MAC was calculated against compressed data, so arc_hdr_authenticate() would see a mismatch because it's now using a newer version of zstd to compress the data (for performance reasons, because re-compression is faster than reading the data back from disk). [1] https://github.com/openzfs/zfs/pull/11367#pullrequestreview-559645117 further explained in https://github.com/openzfs/zfs/pull/11367#issuecomment-753517958 [2] https://github.com/facebook/zstd/issues/999#issuecomment-359538229 --=20 You are receiving this mail because: You are the assignee for the bug.=
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