Re: stock 2.4.20: loading amd76x_pm makes time jiggle on A7M266-D

From: Kay Diederichs (kay.diederichs@uni-konstanz.de)
Date: Thu Dec 05 2002 - 05:13:39 EST


Alan Cox wrote:
>
> On Wed, 2002-12-04 at 12:29, Kay Diederichs wrote:
> > the subject says it all:
> >
> > if I use the powersaving module amd76x_pm then the time is not kept. The
> > hardware is Asus A7M266-D with 2 MP1900 processors, BIOS is 1004 (but I
> > tried later BIOS versions as well).
>
> Boot with "notsc". Unfortunately I dont think there is a way I can make
> the module turn off tsc at runtime.

To use "notsc" I had to set CONFIG_X86_TSC_DISABLE=y , but then init
fails (booting stops after freeing some kernel memory). Configure.help
says one has to install a TSC-checking glibc if that happens; I
installed the latest glibc-2.2.4-31 from redhat/7.2/updates but still
init fails. Are there RH7.2 compatible versions of glibc which are
TSC-checking?

I also tried
echo 01 >/proc/irq/0/smp_affinity
and it seems to improve the situation but I'm not sure if this is a good
workaround.

Kay

-- 
Kay Diederichs         http://strucbio.biologie.uni-konstanz.de/~kay 
email: Kay.Diederichs @ uni-konstanz.de  Tel +49 7531 88 4049 Fax 3183
When replying to my email, please remove the blanks before and after the
"@" !
Fakultaet fuer Biologie, Universitaet Konstanz, Box M656, D-78457
Konstanz
-
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/



This archive was generated by hypermail 2b29 : Sat Dec 07 2002 - 22:00:22 EST