Hello! (I subscribed to this mailing list to be able to post, but I have mailing list mail delivery disabled -- please CC me on replies.) A syslog-ng user tried to use syslog-ng with ivykis 0.41 and ran into the following issue: https://github.com/buytenh/ivykis/issues/11 In a nutshell, syslog-ng seems to be registering an ivykis timer (iv_timer) with timeout tv_sec = 0, tv_nsec = 0, and ivykis >= 0.40 added support for timerfd_create, but due to a bug in ivykis, this {0, 0} timeout would get passed into timerfd_settime() verbatim, and timerfd_settime() interprets this zero timeout as a request to disable the timerfd, which would cause timer processing to stop. I will release a new ivykis release with a workaround for this, but I figured that you'd probably want to know about this as well, as I don't think it makes sense for syslog-ng to be registering timers with an absolute timeout of zero. Cheers, Lennert