page fault while in kernel mode - after upgrade from 12.2 to 13.0

Michael Schmiedgen schmiedgen at gmx.net
Wed May 5 16:51:32 UTC 2021


On 05.05.2021 18:35, Michael Schmiedgen wrote:
> On 04.05.2021 21:02, Mark Johnston wrote:
>> This looks like fairly random kernel memory corruption.  Are you able to
>> build an INVARIANTS kernel and test that?  Assuming you're using 13.0,
>> you'd grab the 13.0 sources, add "options INVARIANT_SUPPORT" and
>> "options INVARIANTS" to the GENERIC kernel configuration in
>> sys/amd64/conf, and do a "make buildkernel installkernel".
>
> Below some info with an INVARIANTS kernel. Please let me know if I can provide
> further information. Thank you!
>
>
> --- kgdb backtrace
>
>
> (kgdb) backtrace
> #0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
> #1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:399

[...]


FYI, I just triggered another panic with INVARIANTS and the backtrace looks like the one before.

Michael


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