[asterisk-users] zaptel huge irq problem

[François Delawarde]

aaah...

I'm running asterisk in a Xen kernel, but not on a virtual machine 
(DomU), only on Dom0, so it's "supposed" to be running on the physical 
server (no PCI frontend device, ...). I had seen possible problems with 
older versions of Xen, but only with ztdummy timing and on DomU virtual 
machines. On Xen mailing list, they all advise to use a digium PCI card 
to remove those problems.

I will test and report what happens with a normal kernel, but meanwhile 
doesn't anyone know of a possible possibility to make it work with this 
setting playing for example with IRQ priorities or something, or isn't 
there any hope at all?

Thanks again,
François.




Stephen Bosch wrote:
> François Delawarde wrote:
>   
>> Thanks Michael,
>>
>> I've already been through all that unfortunately, and I have a SATA
>> drive, so no UDMA mode 2 as far as I know. I'm currently trying
>> everything again anyway, but i doubt it will work if nothing worked the
>> first time.
>>
>> Anyone would know of issues with XEN or SMP (or both) kernel? Do dual
>> core AMD64 processors have issues?
>>     
>
> Uh, yeah...
>
> Xen has many, many problems with interrupt handling and is utterly
> unsuitable for running anything that depends on hardware peripherals. I
> speak from very painful experience.
>
> There is no way, under any circumstance, that I would try to run
> Asterisk with interface cards in a Xen environment. It's too bad you
> wasted so much time trying to fix it -- it's never going to work.
>
> Try ripping Xen out and doing it directly on the physical server. I
> think you'll find your problems will go away.
>
> -Stephen-
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