On Wed, Jan 31, 2018 at 7:20 AM, Heiko Carstens <heiko.carstens@xxxxxxxxxx> wrote: > @@ -85,6 +91,12 @@ The run-time instrumentation facility is available beginning with System z EC12. > Glibc does not provide a wrapper for this system call, use > .BR syscall (2) > to call it. > +.PP > +Support for signalling was removed with Linux 4.4. With Linux 4.4 > +also the check if > +.IR signum > +is a valid real-time signal was removed. For backwards compatibility with old > +kernels it is recommended to pass a valid real-time signal number. I would recommend passing 0 instead, as passing non-zero signal number implies that the userspace process expects to receive this signal in the future in case of aforementioned events, and this will not happen on Linux 4.4 onwards. -- Eugene Syromyatnikov mailto:evgsyr@xxxxxxxxx xmpp:esyr@jabber.{ru|org} -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
