On Wed 2021-10-13 11:37:19, Sebastian Andrzej Siewior wrote: > The CPU trigger is invoked on ARM from CPU-idle. That trigger later > invokes led_trigger_event() which may invoke the callback of the actual driver. > That driver can acquire a spinlock_t which is okay on kernel without > PREEMPT_RT. On a PREEMPT_RT enabled kernel this lock is turned into a > sleeping lock and must not be acquired with disabled interrupts. > > Disable the CPU trigger on PREEMPT_RT. > > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > Link: https://lkml.kernel.org/r/20210924111501.m57cwwn7ahiyxxdd@xxxxxxxxxxxxx Thanks, applied. Pavel -- http://www.livejournal.com/~pavelmachek
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