[Bug 259155] Loading sfxge module results in kernel panic when using SFN5122F NIC

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 13 Oct 2021 20:29:20 UTC

            Bug ID: 259155
           Summary: Loading sfxge module results in kernel panic when
                    using SFN5122F NIC
           Product: Base System
           Version: 13.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: m3380o9dprjq@opayq.com

Created attachment 228678
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=228678&action=edit
Core dump summary from affected machine

I have three machines with SFN5122F NICs, and on each of them, loading sfxge in
FreeBSD 13.0-RELEASE causes an immediate kernel panic. This does not happen on
FreeBSD 12.2-RELEASE, on which the cards work perfectly.

The machines are a dual socket Xeon X5650 machine, a quad socket E7-4870
machine (Proliant DL580 G7), and a newer Ryzen 3950X machine. 

I loaded sfxge after boot manually using kldload.

I have generated a crash dump, which I am happy to provide in full if
requested, on the 3950X machine, as the others are active servers. The PCI HWID
of the card in this machine (they should all be identical cards) is [1924:0803]

The kernel used is the default downloaded via the mini-memstick bsdinstall for
13.0-RELEASE. I have made as few alterations to the system as possible
post-installation before triggering the panic.

Attached is a full dump summary. If further details are needed more
expediently, I am Ampera on #freebsd on Libera.

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