Re: PCU panic on V240

["J. Hannken-Illjes" <hannken%eis.cs.tu-bs.de@localhost>]

On Dec 5, 2013, at 12:40 PM, Sujit K M <sjt.kar%gmail.com@localhost> wrote:

> On Thu, Dec 5, 2013 at 4:04 PM, J. Hannken-Illjes
> <hannken%eis.cs.tu-bs.de@localhost> wrote:
>> Running -current on a Sparc V240 I get a diagnostic assertion running
>> the script attached:
> 
> I don't understand, if you are running a script, you should know what the 
> script
> does. I didn't understand what the script does? Could you please let us know
> what the script does?

It takes file system snapshots.  To create a snapshot the kernel uses PCU
to change state.  PCU uses high priority xcalls and the xcall handler fails
with an assertion.

The softint handler is called from interrupt context and this should not happen.

This may be related to a recent change where PCU now uses softserial
instead of softclock.

--
J. Hannken-Illjes - hannken%eis.cs.tu-bs.de@localhost - TU Braunschweig 
(Germany)