On 1/14/19 7:44 AM, Juergen Gross wrote: > Commit f94c8d11699759 ("sched/clock, x86/tsc: Rework the x86 'unstable' > sched_clock() interface") broke Xen guest time handling across > migration: > > [ 187.249951] Freezing user space processes ... (elapsed 0.001 seconds) done. > [ 187.251137] OOM killer disabled. > [ 187.251137] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) > done. > [ 187.252299] suspending xenstore... > [ 187.266987] xen:grant_table: Grant tables using version 1 layout > [18446743811.706476] OOM killer enabled. > [18446743811.706478] Restarting tasks ... done. > [18446743811.720505] Setting capacity to 16777216 > > Fix that by setting xen_sched_clock_offset at resume time to ensure a > monotonic clock value. > > Fixes: f94c8d11699759 ("sched/clock, x86/tsc: Rework the x86 'unstable' > sched_clock() interface") > Cc: <sta...@vger.kernel.org> # 4.11 > Reported-by: Hans van Kranenburg <h...@knorrie.org> > Signed-off-by: Juergen Gross <jgr...@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracle.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel