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.

On 16 July 2013 10:46, Yehavi Bourvine <yehavi.bourvine@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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