Messages in this thread | | | From | Marc <> | Subject | Re: clock skew on B/W G3 | Date | Tue, 4 Oct 2005 08:14:06 +0200 |
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Hi,
given that this option causes problems on non i386 systems, may I propose to mark CONFIG_HZ as broken on these architectures and/or use a default value of 1000 ? I guess this issue can't be fixed in a sane way until 2.6.14 is out.
Marc
Le Montag 03 Oktober 2005 16:18, Rune Torgersen a écrit : > > -----Original Message----- > > From: Marc > > Sent: Sunday, October 02, 2005 11:46 > > > > Some additions to the previous mail: I was able to isolate > > the problem to the > > introduction of a user specificable value of HZ (in > > include/asm-ppc/parm.h). > > I used a value of 250 while the former default was 1000. > > Setting it back to > > 1000 makes the clock tick right again. > > > > Is the CONFIG_HZ known to be broken on PPC ? > > CONFIG_HZ is not broken, but the whole clock configuration is. > (I poseded something about it for 8260 earlier this summer) > > Basic problem is that CLOCK_TICK_RATE which is used for setting up the > variables used for advancing the clock, is hardcoded to a value that > only makes sence for an i386. (it is default set at 1193180Hz which > happens to be the timer clock for timer1 on an i386 machine) > > Another problem here is that that value apparently hve to be #define'd > which means you cannot insert the decrementer frequency from the > boot-loader either. - 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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