Jürgen, On Mon, Jan 19, 2009 at 09:45:58PM +0100, Jürgen Mell wrote: > The only thing which is missing for me from the 2.6.24.7-rt series is > the patch > "x86-fpu-fix-config_preempt-y-corruption-of-application-s-fpu-stack.patch" > , GIT commit > 870568b39064cab2dd971fe57969916036982862 from mainline 2.6.25. This > might cause trouble with applications which are using floating point > arithmetics. Otherwise I am using the 2.6.24.7-rt series on a machine > control for a 16 axes machine and it is working mostly well. There are > only some points where I get big delays (up to some milliseconds) with > my timer routine, where normally delays are below 50 microseconds. Up to > now I could not find the application ( X ??) which is causing this. Can you reproduce these long latencies with cyclictest, or does it only happen with your code? rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
