panic: pmap_demote_section: No l2_bucket for wired mapping

[Michael Tuexen]

> On 22 Mar 2015, at 10:19, Olivier Houchard <mlfbsd at ci0.org> wrote:
> 
> On Sun, Mar 22, 2015 at 06:54:06AM -0500, Michael Tuexen wrote:
>> Dear all,
>> 
> 
> Hi Michael, 
> 
>> running head on a Raspberry Pi became unstable. When running
>> r280329 for a while (the machine is exposed to the Internet, so
>> ssh logins are continuously tried), the machine panics:
>> 
>> panic: pmap_demote_section: No l2_bucket for wired mapping
>> 
>> It might be related to
>> https://svnweb.freebsd.org/changeset/base/280324
>> 
>> Any idea what is going on?
>> 
> 
> Doest backing rev 280324 out fixes it ? I'm at a loss as to why my commit 
OK, testing done. Backing out 280324 does NOT help. So the issue is not related
to this patch.
Disabling superpages helps to work around the issue.

Best regards
Michael
> could provoke this, and can't seem to reproduce it on my pandaboard.
> Another possibility is that rev 280327, which makes it possible to map
> library's code using superpages, uncovered a bug somewhere.
> 
> Regards,
> 
> Olivier
>