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

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

--- Comment #4 from Rebecca Cran <bcran@FreeBSD.org> ---
12.3-STABLE-20220826 r372448 appears to work well: I get 1.2 GB/s and didn't
notice any instability (though I didn't try as hard as with 13.0-RELEASE).

13.1-STABLE-20220826 is broken: I get 168 MB/s, then a segfaults when I cancel
dd.

13.0-RELEASE appeared to work, I get 168 MB/s and no segfaults but then I tried
to logout from the installer shell and it hung. Logging into another VT, I ran
dmesg and saw init was repeatedly crashing:

pid 49742 (init), jid 0, uid 0: exited on signal 11
pid 49743 (init), jid 0, uid 0: exited on signal 11
pid 49744 (init), jid 0, uid 0: exited on signal 11
pid 49745 (init), jid 0, uid 0: exited on signal 11
pid 49746 (init), jid 0, uid 0: exited on signal 11
pid 49747 (init), jid 0, uid 0: exited on signal 11
etc.

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