Re: kern/57705: rump doesn't have a way to interrupt rump_sys_* by a signal

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

Oops... that patch isn't going to work reliably: potential lock order
reversal and races.  Need to find another approach -- probably have to
arrange psignal to take the lock that's serializing cv_wait_sig, which
means finding some way to safely expose that lock through
l->l_sched.info.