On Apr 29, 11:41pm, p99dreyf@criens.u-psud.fr (Emmanuel Dreyfus) wrote:
-- Subject: Re: possible bug in NetBSD asynchronous I/O

| Are you sure? I've bloated my kernel with debug printf(), and it seems
| to me that the SIGIO comes through a sowwakeup, from
| sys/kern/uipc_usrreq.c:usrreq()
| 

You are right. I see what is going on now. NetBSD is the only of the OS's
you mentioned that uses socketpair for pipes. I bet if you change your
program to use socketpair() on OpenBSD it will fail the same way.

christos