[Bug 228332] ipfw crashes with lookup tables or similiar configurations on ryzen

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228332

            Bug ID: 228332
           Summary: ipfw crashes with lookup tables or similiar
                    configurations on ryzen
           Product: Base System
           Version: 11.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: misc
          Assignee: bugs at FreeBSD.org
          Reporter: shitman71 at hotmail.com

I don't know if its ryzen which is causing this and if its the ryzen-bug or if
it is something else.

Commands like this are causing kernel-panics:

ipfw table test create type number algo number:array
ipfw table test add 1001
ipfw table test add 1002
ipfw table test add 1003
ipfw table test add 1005
ipfw table test add 1007
ipfw table test add 1008
ipfw table test add 1009
ipfw table test add 1010
ipfw table test add 1011
ipfw table test add 1012
ipfw table test add 1013

ipfw add 0 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state lookup uid test

this also causes kernel-panic:

ipfw add 0 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1001 uid
1002 uid 1003 uid 1005 uid 1007 uid 1008 uid 1009 uid 1010 uid 1011 uid 1012
uid 1013

this causes no kernel-panic:

ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1001
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1002
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1003
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1005
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1007
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1008
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1009
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1010
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1011
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1012
ipfw add 3 deny src-ip any dst-ip 0.0.0.0 dst-port 0 keep-state uid 1013

Adjusting hardware-settings(memory-frequency, cpu-frequency, disabling cores,
disabling smt) down to lowest settings within bios stops the kernel from
panicing, this indicates something i previously recognised. The hardware is
causing this but there is also something wrong with software if weak changes
like this are causing kernel-panics.

Please don't mark this as duplicate until its clear whats causing it.

According to another bug-report some people sayed its a software-problem but
thats wrong, i repeadetly sayed the motherboard is causing this but this got
ignored and they did some changes to software. It's stoping the system from
crashing but also removes functionality. At least this makes me absolutely sure
its not the software causing this and if some user experience this kind of bug
this is the workaround.

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