Hello Manfred, > My question if I run the pi_stress, my watchdog triggers, if watchdog is > disabled i get this: > Is this the correct behaviour ? Or does it show a problem ? Depends on the priority of your watchdog-feeder thread. If it is not running in RT mode, with a priority higher than used in the pi-stress test, then yes it is normal that the watchdog kicks in. pi-stress takes 100% CPU-load, and leaves no room for non-RT processes. The output you get seems normal to me... Remy 2007/9/4, Manfred Gruber <m.gruber@xxxxxxxxx>: > hi ! > > I have now run 2.6.23-rc4-rt1 on my arm920t with the pi_stress test programm > from http://people.redhat.com/williams/tests > > My question if I run the pi_stress, my watchdog triggers, if watchdog is > disabled i get this: > > Admin threads running on processor: 0 > Test threads running on processor: 0 > Starting PI Stress Test > Number of thread groups: 10 > Number of inversions per group: infinite > Test threads using scheduler policy: SCHED_FIFO > Admin thread priority: 4 > 10 groups of 3 threads will be created > High thread priority: 3 > Med thread priority: 2 > Low thread priority: 1 > Press Control-C to stop test > Current Inversions: 15551 > Keyboard Interrupt! > > Stopping test > Total inversion performed: 15570 > Test Duration: 0 days, 0 hours, 0 minutes, 14 seconds > > Is this the correct behaviour ? Or does it show a problem ? > > thanks, regards > fred > > Am Tuesday 21 August 2007 schrieben Sie: > > Hi Remy ! > > > > thanks a lot, i will test it on a ARM-v4 with 2.6.23-rc2-rt2 and > > 2.6.21.5-rt20. > > > > I have a application which makes a lot of pthread_mutex_lock/unlock > > between rt and non-rt tasks with PI. So i will look what happens. > > > > thanks > > fred > > > > Am Monday 20 August 2007 schrieben Sie: > > > Hello Manfred, > > > > > > At http://www.spinics.net/lists/arm-kernel/msg42349.html you can find > > > a patch that will probably work. Due to the lack of proper atomic > > > instructions on the ARM-v4 core this patch is likely to be the best > > > possible solution. > > > > > > Kind Regards, > > > > > > Remy > > > > - > > 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 > - 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
