> On Nov 26, 2014, at 8:04 AM, Masao Uebayashi <[email protected]> wrote: > > Critical section must stop soft interrupt which may block & sleep > (using the preempted lwp). Thus critical sections must be at least > IPL_SOFTSERIAL.
That is not true. If the softint thread sleeps, control is returned back to the preempted lwp.
