Date: Sat, 29 Apr 2000 08:45:46 -0600 From: Steve Passe <smp@csn.net> To: djb@ifa.au.dk Cc: freebsd-smp@FreeBSD.ORG, Terry Lambert <tlambert@primenet.com>, Matthew Dillon <dillon@apollo.backplane.com>, Jeremiah Gowdy <jgowdy@home.com>, James Housley <jim@thehousleys.net> Subject: Re: hlt instructions and temperature issues Message-ID: <200004291445.IAA09070@Ilsa.StevesCafe.com> In-Reply-To: Your message of "Sat, 29 Apr 2000 16:17:13 %2B0200." <20000429161713.A49155@relativity.student.utwente.nl>
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Hi, > On Sat, Apr 29, 2000 at 01:53:50PM +0200, Dave Boers wrote: > > The kernel looks stable, even though from the thread I get the impression > > that many problems might arise. To stress the system somewhat, I'll do a > > make -j 12 buildworld now. See if it crashes. > > It didn't crash. During the process I followed processor utilization using > top and everything seems just normal to me. Also, the system does not > appear slower than normal at all. > > During the buildworld the processor temperature never reached above 40 > degrees celcius. So I guess, comparing to the 50 degrees Celcius, that > whatever an unmodified SMP FreeBSD-system is doing during idle time, it > sure makes the processor very hot; even hotter than during full load in > buildworld -j 12. Did you use the version that had the explicit instruction between the sti and hlt: ENTRY(default_halt) sti movl $0, lapic_tpr hlt ret or one of the other variations we discussed? I would like to repeat your experiment. -- Steve Passe | powered by smp@csn.net | Symmetric MultiProcessor FreeBSD To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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