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Date:      Thu, 30 Nov 2023 04:42:05 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 275308] EN tracking issue for potential ZFS data corruption
Message-ID:  <bug-275308-3630-6Zh3Xk1qcs@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-275308-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-275308-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275308

--- Comment #22 from Rob Norris <robn@despairlabs.com> ---
I've reproduced it on 12.4. I'm working on a patch now.

Happily, it should be even harder to hit in practice. Nothing in base appea=
rs
to use SEEK_HOLE/SEEK_DATA or FIOSEEKHOLE/FIOSEEKDATA, and coreutils 9.x
disables SEEK_HOLE/SEEK_DATA on FreeBSD <14 due to:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256205
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D61386
https://github.com/coreutils/gnulib/commit/7352d9fec59398c76c3bb8a2ef86ba58=
818f0342

(Oh, #256205, the FreeBSD view on OpenZFS #11900. We knew. WE KNEW!!)

Patch soon!

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