Lost interrupts on SMP systems

Peter Trifonov petert at dcn.infos.ru
Sat Jan 15 02:09:14 PST 2005

Hello John,

> > > workaround for an undocumented errata in at least some older I/O 
> > > APICs where a level triggered interrupt can accidentally be 
> > > delivered as edge triggered and end up not being properly 
> > > acknowledged.  However, you don't have any level triggered 
> > > interrupts, so I'm not sure that is applicable.
> More interrupt load that way, which would indicate maybe the 
> bug Linux tries to work around except that your intpins are 
> edge triggered. :(

After doing some google search I have found a number of somewhat similar
problem reports/patches related to this family of HP boxes (Vectra XU
Maybe that is what you were writing about, sorry in such case.


freebsd-smp-unsubscribe at freebsd.org"
With best regards,
P. Trifonov  

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