Messages in this thread | | | Date | Sat, 16 Oct 2004 14:41:34 +0100 (WEST) | Subject | Re: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U3 | From | "Rui Nuno Capela" <> |
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K.R. Foley wrote: >Rui Nuno Capela: >> >> I run both, on different machines. >> >> I'm actually running 2.6.9-rc4-mm1-U3 at this very moment, on my laptop >> (P4 2.53Ghz/UP, Mdk 10.1c) and also on my desktop machine (P4 >> 2.80Ghz/SMP/HT, SuSE 9.1). >> >> However, on the desktop (SMP/HT) I could only made it boot/init >> successfully with CONFIG_PREEMPT_REALTIME off. On my laptop (UP) is >> running pretty well on full RT. > > I'm curious what you get when you try to boot the SMP system with > REALTIME on? My SMP/HT system at the office works fine with this. > Although there is one difference that jumps out at me. I have disabled > ACPI. I don't have the config handy so I can't do a complete comparison, > just going from memory. >
Hmm. The way I see it, if I say acpi=off on kernel boot, I loose HT, and end in a SMP enabled kernel running on only one CPU. To keep ACPI disabled but rely on it to show up those hyperthreaded virtual cpus on boot, one should say acpi=ht, I guess.
Is that what you're asking? -- rncbc aka Rui Nuno Capela rncbc@rncbc.org
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