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RE: [Xen-devel] [Fwd: stack overflow "cause" found]
| To: | "Rik van Riel" <riel@xxxxxxxxxx>, "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [Fwd: stack overflow "cause" found] |
| From: | "Nakajima, Jun" <jun.nakajima@xxxxxxxxx> |
| Date: | Wed, 26 Jul 2006 15:29:40 -0700 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Wed, 26 Jul 2006 15:43:01 -0700 |
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| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Acaw/+jBDSsF6QORSBCoFs3BRNv6tQAAthhg |
| Thread-topic: | [Xen-devel] [Fwd: stack overflow "cause" found] |
Rik van Riel wrote: > Ian Pratt wrote: >>>> Xen really should not be doing this. We could either uninline >>>> some of these functions, or try gcc -O2 or gcc -Os. >>> OK, with -Os it doesn't quite build due to the built-ins not being >>> inlined. With -O2 the stack usage changes dramatically... >> >> It would be nice if -O2 worked. Quite a scary change give the amount >> of inline asm though... > > Not only does -O2 seem to work, but without it we get stack > overflows and things suddenly stop working. > > I've been beating up my x86-64 system with a few VT and paravirt > guests for over an hour now, and it no longer crashes. Without > -O2, I can make it crash within minutes... Good news. We've been doing stress testings, and haven't seen major problems so far. Jun --- Intel Open Source Technology Center _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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