On 2024-06-20 09:15:45 [+0200], To Derek Barbosa wrote: > On 2024-06-18 13:37:42 [-0400], Derek Barbosa wrote: > > Hi, > Hi, > > > We have a modicum of reasonable suspicion to believe that nbcon_reacquire, or > > some other nbcon mechanism *may* be causing such behavior. > > Does this help? > > diff --git a/kernel/printk/nbcon.c b/kernel/printk/nbcon.c > index bb9689f94d302..0813ce88a49c5 100644 > --- a/kernel/printk/nbcon.c > +++ b/kernel/printk/nbcon.c > @@ -1119,6 +1119,7 @@ static int nbcon_kthread_func(void *__console) > } > > console_srcu_read_unlock(cookie); > + cond_resched(); > > } while (backlog); > Okay. Works here on a 144 CPU box without CONFIG_PREEMPT. Sebastian
