Ohh... that's a pretty big diff, but my Marvell-based ARC-1200 is listed as affected, so it's certainly worth a shot. Now to dig in and teach myself how to patch and build releases against -CURRENT (might be a while before I come back with results)...
Chris

On 2/22/2021 1:40 PM, Chris Cappuccio wrote:
Chris Zakelj [c.zak...@ieee.org] wrote:

Thanks!  Now for a mixed-bag result. 5.6 and 5.5 both panic. 5.4 boots
(dmesg attached), but doesn't actually see the 1TB array (installer says
"Available disks are: none."  I did get this curiosity after I escaped the
install shell and rebooted:


Looks like we have a problem with arc_marvell cards. I had one working
but there may be different firmware, etc.

Areca sent a newer patch to openbsd-tech in the last year or so which you 
should try:

From: ching Huang <ching2...@areca.com.tw>
Subject: [PATCH: sys/dev/pci/arc.c] update Areca Raid adapter driver arc.c for 
support ARC-1203, ARC-1884

It's not clear if this changes the behavior on your card significantly.

Chris


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