On Tue, July 15, 2008 20:02, Ken Restivo wrote: > On Mon, Jul 14, 2008 at 11:48:18PM +0100, Rui Nuno Capela wrote: > >> Florian Schmidt wrote: >> >>> Hi Ken, >>> >>> >>> On Monday 14 July 2008, Ken Restivo wrote: >>> >>>> Linux version 2.6.21-rt1-1 (root@asus) (gcc version 4.1.2 20061115 >>>> >>> ^^^^^The version string shows it though :) >>> >>> >>>> (prerelease) (Debian 4.1.1-21)) #1 SMP PREEMPT Thu May 3 00:41:41 >>>> PDT 2007 >>>> >>>> >>>> >>>> No "RT" there, but I definitely know it is an RT kernel, because I >>>> patched it myself. >>> >> >> i'm afraid you're betting on the wrong horse :) >> >> you could have patched it alright (no doubt about that) and also set >> EXTRAVERSION with the "-rt1-1" suffix, but, unless you've set >> CONFIG_PREEMPT_RT=y you're not running a full-preeept RT kernel, that's >> for sure. >> >> afaict, when one talks about a RT linux kernel, he/she's meaning that >> CONFIG_PREEMPT_RT=y and then, trust me, the "RT" will appear in the >> `uname -a` line output. >> >> > > On my laptop, CONFIG_PREEMPT_RT is set, but no "RT" appears in the uname > -a line. > strange. > It's definitely a RT kernel. I've been running it for a year now. > dunno when that "RT" got in the uname -a line, but one other way for you to check that your kernel is _actually_ a full real-time preempt kernel is for seeing the existence of the irq service handler threads like this (as root) ps -ef | grep -i IRQ check that out, not that it makes a difference other than a point -- rncbc aka Rui Nuno Capela rncbc@xxxxxxxxx _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
