Question about watchdog

[valdis.kletnieks at vt.edu]

On Sun, 01 Jul 2018 20:44:29 +0800, bing zhu said:

> say use kthread_create func ,my question is :how can i make this thread to
> run on a cpu and never get switched or scheduled , there is a
> while(1).....structure in that thread i need it to do work

That's almost certainly a result of a poor design.  What problem
were you trying to solve by wrapping a 'while(1)' around in-kernel code?

> comes with errors like "NMI watchdog: BUG: soft lockup - CPU#0 stuck for
> 23s! [test thread :1881]",i understand there is a watchdog but is there
> anyway i can feed the dog myself and let my thread have cpu as much as i
> want ?

There are ways.  But you probably should figure out how to fix your code
so feeding the watchdog isn't needed....
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