Instability likely related to new pmap on Cubieboard A10

[Svatopluk Kraus]

Hi,

could you please test the following patch:
https://github.com/strejda/freebsd/commit/618092e6a6cc2f568979ed6f5cf1c1130182b068.diff

Svata




On Tue, Sep 1, 2015 at 3:01 PM, Dmitry Marakasov <amdmi3 at amdmi3.ru> wrote:
> * Svatopluk Kraus (onwahe at gmail.com) wrote:
>
>> >> Thanks. Meantime, I tried most recent HEAD on pandaboard and
>> >> beaglebone black and no problem there. Do you have enabled INVARIANTS
>> >> and INVARIANT_SUPPORT in your config?
>> >
>> > I've enabled them at some point - at least last two runs had these
>> > enabled. Any other way I could help? Maybe I should check if it was
>> > new pmap commit which caused this, and if not, bisect it?
>> >
>>
>> Can you try attached semi-debug patch, please? I want to be sure that
>> problem is not on patched place.
>
> Sorry for delay, I was short on time last week, and then I was busy with
> setting up tftp/nfs netboot for my cubieboard. Now it finally works
> and I'd say it's pretty cool when I can test another build without
> plugging sd card around. Unfortunately, with this setup panic doesn't
> reproduce: there are just around 10 sh(1) segfaults during init, and
> then it boots into somehow usable state. Only once I've had panic with
> your latest patch applied:
>
> https://people.freebsd.org/~amdmi3/pmap4.log
>
> With my new netboot, I plan to try to bisect it; for panic debugging I
> guess I'll have to get back to plugging SD around. If you want me to do
> more panic tests, could we please revisit which patches should be
> applied cause I'm kinda lost in them.
>
> --
> Dmitry Marakasov   .   55B5 0596 FF1E 8D84 5F56  9510 D35A 80DD F9D2 F77D
> amdmi3 at amdmi3.ru  ..:  jabber: amdmi3 at jabber.ru      http://amdmi3.ru