[Bug 271766] dumpfs fails on geli devices: cylinder group checks failed

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From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 01 Jun 2023 19:41:51 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271766

--- Comment #5 from Andrew "RhodiumToad" Gierth <andrew@tao11.riddles.org.uk> ---
(In reply to Andrew "RhodiumToad" Gierth from comment #4)

Looks like it might be related to page alignment? dumpfs isn't using an aligned
buffer, and it's the 16 bytes immediately before a page boundary that come out
corrupt.

Almost everything else will likely be using aligned pages, which might explain
why a bug would go unnoticed.

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