[Xen-devel] [PATCH 1/2] unpause parked vcpu before destroying it

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

A capped out vcpu must be unpaused in case of moving it to another cpupool,
otherwise it will be paused forever.

Signed-off-by: Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>
---
 xen/common/sched_credit.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c
index 3d6ea7a..2dd5ed7 100644
--- a/xen/common/sched_credit.c
+++ b/xen/common/sched_credit.c
@@ -929,6 +929,12 @@ csched_vcpu_remove(const struct scheduler *ops, struct 
vcpu *vc)
 
     SCHED_STAT_CRANK(vcpu_destroy);
 
+    if ( test_and_clear_bit(CSCHED_FLAG_VCPU_PARKED, &svc->flags) )
+    {
+        SCHED_STAT_CRANK(vcpu_unpark);
+        vcpu_unpause(svc->vcpu);
+    }
+
     if ( __vcpu_on_runq(svc) )
         __runq_remove(svc);
 
-- 
1.7.10.4


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