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[Xen-devel] [PATCH] xentrace: fix lost records resume
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| Subject: | [Xen-devel] [PATCH] xentrace: fix lost records resume |
| From: | George Dunlap <George.Dunlap@xxxxxxxxxxxxx> |
| Date: | Mon, 12 Apr 2010 18:01:54 +0100 |
| Delivery-date: | Mon, 12 Apr 2010 10:02:53 -0700 |
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Reorder the SCHED_SWITCH trace before the runstate change trace to fix a problem with the lost records "resume" code. Namely: The "lost records" trace includes the currently running process. But during SCHED_SWITCH, it reads the wrong value, confusing xenalyze. Making sure there are no trace records between runstate change trace and the actual context switch fixes it. Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
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