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Re: [XenPPC] [PATCH] Fix race in timebase sync logic
| To: | Amos Waterland <apw@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [XenPPC] [PATCH] Fix race in timebase sync logic |
| From: | Jimi Xenidis <jimix@xxxxxxxxxxxxxx> |
| Date: | Fri, 8 Sep 2006 13:29:16 -0400 |
| Cc: | xen-ppc-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 08 Sep 2006 10:30:20 -0700 |
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| In-reply-to: | <20060908160018.GA17999@xxxxxxxxxxxxxxxxxxxxx> |
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| References: | <20060908160018.GA17999@xxxxxxxxxxxxxxxxxxxxx> |
| Sender: | xen-ppc-devel-bounces@xxxxxxxxxxxxxxxxxxx |
On Sep 8, 2006, at 12:00 PM, Amos Waterland wrote: The SMP timebase sync code that recently went in has a race in whichsecondary processor X+1 can potentially take the timebase offset that isstill in flight for secondary processor X. The cause of this was marking a secondary processor online from the boot cpu and then trying to wait for the secondary processor to mark itself online. Signed-off-by: Amos Waterland <apw@xxxxxxxxxx> Brain-fart-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx> Thanks amos -JX _______________________________________________ Xen-ppc-devel mailing list Xen-ppc-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ppc-devel |
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