On 2021-10-13 10:08:38 [+0200], Pavel Machek wrote: > Hi! Hi, > > - The idle loop (x86 or ARM makes no difference) is always invoked with > > disabled interrupts and so sleeping is a no no on PREEMPT_RT. So a > > spinlock_t can not be acquired in this context. > > Ok, I have reviewed code, and your patch seems like a way forward. Can > you resubmit it with fixed changelog? Could you please point me what to needs to be fixed in the changelog? I mentioned the read lock which is acquired with disabled interrupts and this does not work on PREEMPT_RT. > Thanks, > Pavel Sebastian