On Wed, May 16, 2007 at 12:02:41PM +0200, Alessio Igor Bogani wrote: > On Tue, 2007-05-15 at 20:08 +0200, Juergen Beisert wrote: > [...] > > > > I'm trying 2.6.21-rt1 and it _seems_ works (not tested yet). > > > > > > The kernel itself was booting up, and running fine, but cyclictest and > > > my little square wave example > > > (http://rt.wiki.kernel.org/index.php/Squarewave-example) were not able > > > to achieve stable timings. > > > > Once again. On this piece of hardware there is no other useful timer as the > > PIT. > > Cyclictest tell me this: > > "WARNING: High resolution timers not available" > > also if i add "clocksource=pit" in the kernel command line! :-(
Looks like it didn't switch to highres mode. You can check this by looking into /proc/timer_list. Robert -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hannoversche Str. 2, 31134 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9 - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
