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[Xen-devel] [PATCH] Avoid endless loop for vcpu migration
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] [PATCH] Avoid endless loop for vcpu migration |
| From: | Juergen Gross <juergen.gross@xxxxxxxxxxxxxx> |
| Date: | Mon, 14 Mar 2011 15:39:54 +0100 |
| Delivery-date: | Mon, 14 Mar 2011 07:43:07 -0700 |
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On multi-thread multi-core systems an endless loop can occur in vcpu_migrate() with credit scheduler. Avoid this loop by changing the interface of pick_cpu to indicate a repeated call in this case. Signed-off-by: juergen.gross@xxxxxxxxxxxxxx 6 files changed, 11 insertions(+), 15 deletions(-) xen/common/sched_arinc653.c | 2 +- xen/common/sched_credit.c | 12 +++--------- xen/common/sched_credit2.c | 2 +- xen/common/sched_sedf.c | 2 +- xen/common/schedule.c | 6 ++++-- xen/include/xen/sched-if.h | 2 +-
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