search for: e7a3481

Displaying 1 result from an estimated 1 matches for "e7a3481".

Did you mean: e703481
2012 May 04
3
[BUG 2.6.32.y] Broken PV migration between hosts with different uptime, non-monotonic time?
...etween cpus. It also uses sched_clock to measure the time a task spends sleeping, in which case "unstolen time" isn''t meaningful. So just use plain xen_clocksource_read to return wallclock nanoseconds for sched_clock. 2.6.36 does not work, since 489fb49 and e7a3481 are missing: Without the "global synchonization point for pvclock" (AKA last_value) plus the fix to "reset it to 0 on resume" VMs migrate fine in the opposite direction (older=higher uptime → newer=lower uptime), but the original direction (lower→higher) now stalls for 5 min...