[Bug 275308] EN tracking issue for potential ZFS data corruption
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Date: Sat, 25 Nov 2023 09:37:00 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275308
Rob Norris <robn@despairlabs.com> changed:
What |Removed |Added
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CC| |robn@despairlabs.com
--- Comment #8 from Rob Norris <robn@despairlabs.com> ---
Hi, I'm the author of 15571. Just a couple of notes:
- dmu_offset_next_sync=0 does appear to be a very reliable workaround, just not
technically perfect. Only one person has been able to trip it on an extremely
contrived test, as opposed to the default =1, which multiple people have been
able to reproduce consistently.
- The incorrect dirty check in 12.4 (as in Illumos) is in
dmu_object_wait_synced(). I have not explored this at all though; OpenZFS never
had this version and a lot has changed since. There may be other reasons why it
can't be tripped.
Let me know if there's anything I can assist with.
Rob.
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