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Re: [Xen-devel] [PATCH] Avoid triggering the softlockup BUG when offline
| To: | "Glauber de Oliveira Costa" <gcosta@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] Avoid triggering the softlockup BUG when offline for too long. |
| From: | "Glauber de Oliveira Costa" <glommer@xxxxxxxxx> |
| Date: | Mon, 27 Nov 2006 14:47:33 -0200 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir@xxxxxxxxxxxxx> |
| Delivery-date: | Mon, 27 Nov 2006 08:47:41 -0800 |
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* stolen time, as well as blocked time, does not have it's corresponding per processor variable updated all in once, but in multiples of NS_PER_TICK chuncks. If we're out for too long, we could detect stolen being too great multiple times, leading to far more calls to the softlockup watchdog then we want too. FYI, I just made a simple test checking for stolen time instead of offline, and it's in fact called way too oftenly. -- Glauber de Oliveira Costa. "Free as in Freedom" Add your comments to GPLv3 at: http://gplv3.fsf.org/comments/gplv3-draft-2.html _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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