asterisk users - Sep 2006 - Enabling Second Processor Trashes Audio Quality

Any thoughts on this one?

IBM xSeries 330 processor running Debian 3.1 (2.6.8 kernel) with a 
TE406P board.

Working fine (more or less) connected to a couple of PRIs.

Rebuild kernel with support for second CPU and inbound (PRI -> SIP) 
audio is badly garbled. Outbound (Asterisk -> PRI) is fine.

Rebooting a kernel with support for only a single CPU clears up the problem

There is a small possibility that the TE406P card is acting up and that 
the audio problem is coincidental with the switch between 
dual-processor/single-processor kernels but thought I'd consult the list 
for advice.

Will be swapping out the TE406P for a new TE407P in the next couple of 
days and will report findings then.

g.

-- 
George Pajari, netVOICE communications    604 484 VOIP (484 8647 x102)
Open Source VoIP/Telephony Specialists  1 877 NET VOIP (638 8647 x102)
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 VoIP Service, Equipment, Systems, and Consulting - www.netvoice.ca

George Pajari wrote:
> Any thoughts on this one?
> 
> IBM xSeries 330 processor running Debian 3.1 (2.6.8 kernel) with a 
> TE406P board.
> 
> Working fine (more or less) connected to a couple of PRIs.
> 
> Rebuild kernel with support for second CPU and inbound (PRI -> SIP) 
> audio is badly garbled. Outbound (Asterisk -> PRI) is fine.
> 
> Rebooting a kernel with support for only a single CPU clears up the problem
> 
> There is a small possibility that the TE406P card is acting up and that 
> the audio problem is coincidental with the switch between 
> dual-processor/single-processor kernels but thought I'd consult the
list
> for advice.
> 
> Will be swapping out the TE406P for a new TE407P in the next couple of 
> days and will report findings then.
> 
> g.
> 
those have intel processors inside, no ?

you may be a victim of the bus sharing crap that intel uses (that is, 
processors are in parallel on the processor => north bridge)

On Mon, Sep 18, 2006 at 05:07:31PM -0700, George Pajari
wrote:
> Any thoughts on this one?
> 
> IBM xSeries 330 processor running Debian 3.1 (2.6.8 kernel) with a 
> TE406P board.
> 
> Working fine (more or less) connected to a couple of PRIs.
> 
> Rebuild kernel with support for second CPU and inbound (PRI -> SIP) 
> audio is badly garbled. Outbound (Asterisk -> PRI) is fine.
BTW: If you're using the provided kernel, why not use the provided -smp
packages?
> 
> Rebooting a kernel with support for only a single CPU clears up the problem
Is it the original kernel or a boot option to disable SMP?
> 
> There is a small possibility that the TE406P card is acting up and that 
> the audio problem is coincidental with the switch between 
> dual-processor/single-processor kernels but thought I'd consult the
list
> for advice.
> 
> Will be swapping out the TE406P for a new TE407P in the next couple of 
> days and will report findings then.
> 
> g.
> 
> -- 
> George Pajari, netVOICE communications    604 484 VOIP (484 8647 x102)
> Open Source VoIP/Telephony Specialists  1 877 NET VOIP (638 8647 x102)
> Hosted IP PBX Services for SOHO & Small Businesses - www.ip-centrex.ca
> VoIP Service, Equipment, Systems, and Consulting - www.netvoice.ca
minor, off-topic, comment: how can I call you through VOIP ?

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