Messages in this thread | | | Date | Mon, 5 Oct 2009 20:57:46 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: clock_nanosleep: cyclic POSIX thread freezes during time setting |
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Markus,
On Mon, 5 Oct 2009, Mehlan, Markus wrote: > I have the following problem on a MPC5200b customer board, > tested with linux-2.6.24.7-rt11 and 2.6.26.8-rt16. > > I start the test application. Every 200ms I can see a new > line on the console ("ping"). Then I set the time with "date > 100509152009" a few times on > a second console. The effect is that the output on the first console > freezes and if I check > the time with "date", the time doesn't progress during the "freeze > time". After the > "freeze time" the time makes a jump of several seconds. > > In the real application the "ping" should reset the watchdog-timer. The > freezing causes > an elapsing of the watchdog-timer and finally a reboot. > > Has someone an idea?
Just tested on a MPC5200 board with cyclictest and setting date on a second console. Unfortunately I cannot reproduce that problem. Can you try to activate the function tracer and capture what the system is doing. That might us give some clue about the problem.
Thanks,
tglx
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