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 
I can't test it right now, since I'm only having remote access to the raspberry pi
and it already dies when doing svn stuff. Not thinking about compiling stuff. I can build
a complete image when I'm back in my lab. This might take a week or so. I'll report if no one
beats me...
> 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.
This is what I'm thinking about. I could not find an issue while looking
at your patch.

Best regards
Michael
> 
> Regards,
> 
> Olivier
>