[Xen-users] Missed interrupt. Increasing latency to 5 ms in order to compensate.

["Jamie J. Begin" <begin@xxxxxxxxxxxxxxx>]

I am using pciback to pass a Digium PCIX analog telephony card to an Asterisk domU.  Seemingly at random times, the card wigs out with the following appended to my /var/log/messages:

 

Jun 10 12:17:19 asterisk01 kernel: wctdm24xxp0: Missed interrupt. Increasing latency to 4 ms in order to compensate.

Jun 10 14:01:01 asterisk01 kernel: wctdm24xxp0: Missed interrupt. Increasing latency to 5 ms in order to compensate.

 

This is becoming a major problem because it will drop any active calls and refuse to accept new calls until I stop Asterisk, remove and then re-add the kernel module, and finally restart Asterisk.  I don’t know whether the drivers, Xen, the motherboard/BIOS, or Asterisk is to blame.  However, this did not occur until after I virtualized the server.  Does anyone have any suggestions?  This is killing me here…

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