* kus Kusche Klaus <[email protected]> wrote:
> While testing, I noticed that Sysrq p is silently ignored on current
> RT kernels with RT preemption: The syslog contains a message that
> Sysrq p was pressed, but no registers are printed.
yes, that's because the keyboard interrupt is 'threaded' - hence there's
no 'interrupted stack' to print a backtrace of. You should be able to
see all (including currently running) task's backtraces in SysRq-T
output.
are you trying to use it to debug a particular bug?
Ingo
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