[Bug 267654] UFS "cylinder checksum failed" on temporary storage or data disk on arm64 vm in Azure

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 267654] UFS "cylinder checksum failed" on temporary storage or data disk in Azure"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 20 Nov 2022 17:24:46 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267654

--- Comment #11 from Kirk McKusick <mckusick@FreeBSD.org> ---
I do not have any better idea than the debugging idea that you are suggesting.
Of interest is verifying that the seek offset is correct and that the checksum
of what is written and what ends up on the disk match. Note that the checksum
is being calculated and the block written in the libufs routine
lib/libufs/cgroup.c. See functions cgwrite(), cgwrite1(), and where the work is
actually done cgput().

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