On 10/31/24 08:21, Sebastian Andrzej Siewior wrote: > On 2024-10-30 16:10:58 [-0700], Paul E. McKenney wrote: >> >> So I need to avoid calling kfree() within an smp_call_function() handler? > > Yes. No kmalloc()/ kfree() in IRQ context. However, isn't this the case that the rule is actually about hardirq context on RT, and most of these operations that are in IRQ context on !RT become the threaded interrupt context on RT, so they are actually fine? Or is smp call callback a hardirq context on RT and thus it really can't do those operations? Vlastimil >> Thanx, Paul > > Sebastian
