[Bug 266419] mrsas: Corrupts memory (crashes) when reading data from NVMe disk attached to PERC H755N controller

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 266419] mrsas corrupts memory when reading data from NVMe disk attached to PERC H755N controller"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 19 Sep 2022 15:20:35 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266419

--- Comment #6 from Warner Losh <imp@FreeBSD.org> ---
Commits of interest since then:
cd8537910406 MAXPHYS tunable
f83d3280f60d uintptr_t (maybe nop, commit message looks maybe interesting)
e34a057ca6eb and 59fffbcf46ba BIG ENDIAN SUPPORT + i386 fix
fa3d57c25610 calculate maximum transfer size correctly (if setting kern.maxphys
back to 131072 fixes corruption, then study this and the first one).

The rest look like boring changes, or at the least well constrained bug fixes
around the edges that likely wouldn't cause a problem.

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