[asterisk-users] Prompts playback changing tempo w/ SMP kernel
zoachien at securax.org
Mon Sep 4 01:28:51 MST 2006
Check the timer frequency, it might have a different setting on the two
> Hi all, (2nd attempt)
> this is probably a weird question and something I'm not doing right
> but I got this bizarre thing going on here. When I boot the system
> with the SMP kernel and compile (*) with the smp kernel source
> (actually even if I don't compile, but as long as I boot into the SMP
> kernel), I get this problem where calling into the system, say to
> check my voicemail, the prompt playback continously changes tempo. The
> prompts are played in slow-motion, and then it speeds up to its normal
> speed, then goes back in slow-mo and so on. It happens (I think) at
> constant periods. Only the tempo changes, not the pitch of the prompt.
> Does anyone have any idea what could be happening? I have watched
> "top"constantly but haven't noticed anything bizarre in terms of CPU
> or Mem usage. This is on a 100mbps LAN with nothing much else on it.
> And it only happens when it's booted into the smp kernel. So it's
> something to do with smp, thread scheduling, or some buffer BUT I
> don't know what exactly.
> All you champs out there, esp. the asterisk-dev people, any light you
> can shed on this?
> Thanks much
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