Messages in this thread | | | Date | Tue, 13 Apr 2004 14:20:28 +0200 (CEST) | From | "Maciej W. Rozycki" <> | Subject | Re: io_apic & timer_ack fix |
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On Sat, 10 Apr 2004, Ross Dickson wrote:
> > Was it determined that the fix was bogus? damaging? fixable? > > I thought the patch was OK with typos fixed.
I consider it final.
> Thomas was tracking down C1 C2 etc states but I do not know the results of > his search? > http://marc.theaimsgroup.com/?l=linux-kernel&m=107972277920929&w=2 > Was it a problem only with one machine?
The effect seems impossible, but I can't discuss with facts. I need to get at AMD processor documents to find out what are the conditions to switch between the power-save states. Perhaps this is yet another SMM bug. E.g. the pair of PIC poll I/O accesses interacts with the SMM somehow.
Unfortunately I lack time to dig into it right now -- perhaps someone else can do the research?
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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