Messages in this thread | | | Date | Wed, 21 Mar 2007 12:44:04 -0400 | From | Dave Jones <> | Subject | Re: how can I touch softlockup watchdog on all cpus? |
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On Wed, Mar 21, 2007 at 05:06:34PM +0100, Cestonaro, Thilo (external) wrote: > Hey, > > my module generates this ugly softlockup dump, because all cpus are stopped longer then 10 secs. > What I do is: > [code] > local_irq_disable(); > // my stuff which takes long and stopps all cpus > ..... > touch_softlockup_watchdog(); > local_irq_enable(); > [/code] > > this prevents a dump of my current cpu but not for all. > A call to smp_call_function with a function which calls touch_softlockup_watchdog in it, > doesn't work because smp_call_function needs to be done with irqs enabled, so the watchdog comes first :(. > > Any hints or ideas how I can do it in a better way? Disabling softlockup watchdog is not possible for me.
You didn't explain _why_ you need to sleep for such a long time, and as you didn't give a pointer to your code, there's not much people can do to recommend changes other than "don't do that".
Dave
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