Date: Tue, 22 Sep 2009 13:19:18 -0400 From: Larry Baird <lab@gta.com> To: Kevin Day <toasty@dragondata.com> Cc: freebsd-xen@freebsd.org Subject: Re: XEN 5.5.0 and clflush Message-ID: <20090922171918.GA86010@gta.com> In-Reply-To: <5078471e0909221003g43a125f4s99a1f841616bb184@mail.gmail.com> References: <20090922123401.GB29391@gta.com> <20090922131034.GV47688@deviant.kiev.zoral.com.ua> <5078471e0909221003g43a125f4s99a1f841616bb184@mail.gmail.com>
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> > I think I will have to disable CLFLUSH support for intel CPUs when > > self-snoop > > is not reported. > > > > > That's the kinda weird part about this though... It's not triggering an > Invalid Instruction, but a GPF. Looking at AMD's description of how CLFLUSH > is supposed to work, I don't see why it's faulting with what looks like a > valid address. > > While this is probably far outside the scope of what their entry-level > support techs will understand, I can try raising this as a bug with Citrix > under our support contract if you're confident that this is broken on Xen's > end. I keep wondering about comments having to do with AMD processor. The native processor is an an Intel Xeon. Is this piece of the puzzle important? Larry -- ------------------------------------------------------------------------ Larry Baird | http://www.gta.com Global Technology Associates, Inc. | Orlando, FL Email: lab@gta.com | TEL 407-380-0220, FAX 407-380-6080
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