[Freeswitch-users] Physical non virtualized server: switch_time.c:967 Virtual Migration Detected! Syncing Clock

Steven Ayre steveayre at gmail.com
Tue Jul 16 14:46:18 MSD 2013


Check dmesg for any errors.

In particular look for disk I/O errors and use smartctl (smartmontools) to
check for bad disk sectors. I've seen servers freeze entirely for a minute
or more when trying to access a bad sector. That could lead to a big jump
in the clock time for anything that was blocking on the disk I/O.

Also check for any swapping to disk happening.

-Steve




On 16 July 2013 10:46, Yehavi Bourvine <yehavi.bourvine at gmail.com> wrote:

> Hello,
>
>   I am running FS on a physical server (16 core Xeon) and got the above
> error. The server runs entOS 5.9, and one of the latest FS gits.
>   When I had this message FS was freezing for a while, and active calls
> lost the voice (I think, can't correlate exactly).
>
> 1.What does this message means on a non-virtualized server?
> 2. Can it explain the freeze?
> 3. What can I do to overcome it?
>
>                       Thanks! __Yehavi:
>
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