Re: How to dump stack for kernel threads

[Larry Finger]

Jan Engelhardt wrote:
> > In a driver that I am debugging, there is a periodic task that runs every
> > minute. Intermittently, it destructively interrupts some other activity in the
> > driver, but I have not been able to find the section that is not thread-safe. I
> > have included a dump_stack call at the point where the problem is evident, but
> > the current thread is OK. How would I generate a stack dump of the rest of this
> > driver's kernel threads? Dumping all kernel threads would also be OK.
>
>
> Sysrq+T. Behind the jungle, there's a function doing what you want.
>
>
> Jan Engelhardt

Thanks for the tip. It won't work for me from the keyboard but your suggestion got me into a call to 
handle_sysrq.

Larry

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