On Tue, 2024-07-02 at 10:25 +0200, Johannes Berg wrote: > From: Anton Ivanov <anton.iva...@cambridgegreys.com> > > Since userspace state is saved in the MM process, kernel using > FPU still doesn't really need to do anything, so this really > is as simple as enabling preemption. The irq critical section > in sigio_handler() needs preempt_disable()/preempt_enable().
For the record, my main interest in this is to unlock debugging for RCU lists, sleep, etc. johannes
