Snapshots with 'disk and memory' take a very long time? / calcru: runtime went backwards

Karl Pielorz kpielorz_lst at
Thu Aug 29 10:26:57 UTC 2013

--On 29 August 2013 11:13 +0100 Karl Pielorz <kpielorz_lst at> wrote:

> Also once the snapshot is complete the console starts filling with lots
> of:
> "
> calcru: runtime went backwards from 752 usec to 717 usec for pid X
> "
> (Lots of values for 'from' and 'to' and lots, i.e. all PID's).
> Restarting the VM fixes this.

As does just 'leaving' the system as well - having done it a few times now 
to test, the calcru errors do stop being issued after a while. I don't know 
if their cosmetic (can be ignored) or not though.


More information about the freebsd-xen mailing list