From owner-freebsd-bugs@freebsd.org Thu Jan 12 04:06:59 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3D823CABEA2 for ; Thu, 12 Jan 2017 04:06:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 2221311CC for ; Thu, 12 Jan 2017 04:06:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v0C46wrB076219 for ; Thu, 12 Jan 2017 04:06:58 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 214987] updating EVFILT_TIMER kqueue events doesn't work Date: Thu, 12 Jan 2017 04:06:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: cem@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jan 2017 04:06:59 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214987 --- Comment #3 from Conrad Meyer --- I see. You are reusing the timer with ident=3D1. Hm. With: @@ -25,7 +25,7 @@ int n =3D ::kevent(kq, &event, 1, nullptr, 0, nullptr); assert(n =3D=3D 0); - EV_SET(&event, 1, EVFILT_TIMER, flags, fflags, 1000, nullptr); + EV_SET(&event, 2, EVFILT_TIMER, flags, fflags, 1000, nullptr); n =3D ::kevent(kq, &event, 1, nullptr, 0, nullptr); assert(n =3D=3D 0); Two timers are attached, and the program indeed wakes up quickly: CPU ID FUNCTION:NAME 1 64686 kevent:entry 2017 Jan 11 20:06:00.530 1 15060 filt_timerattach:entry 2017 Jan 11 20:06:00.530=20=20= =20 kn:fffff800286c4e00 1 15061 filt_timerattach:return 2017 Jan 11 20:06:00.530=20=20= =20 kn:fffff800286c4e00 kc:fffff80005cb4200 1 15061 filt_timerattach:return 2017 Jan 11 20:06:00.530=20=20= =20 return:0 1 15058 filt_timer:entry 2017 Jan 11 20:06:00.530=20=20= =20 kn:fffff800286c4e00 hint:0 1 15059 filt_timer:return 2017 Jan 11 20:06:00.530=20=20= =20 return:0 1 64686 kevent:entry 2017 Jan 11 20:06:00.530 1 15060 filt_timerattach:entry 2017 Jan 11 20:06:00.530=20=20= =20 kn:fffff800286c4e80 1 15061 filt_timerattach:return 2017 Jan 11 20:06:00.530=20=20= =20 kn:fffff800286c4e80 kc:fffff80005cb4180 1 15061 filt_timerattach:return 2017 Jan 11 20:06:00.530=20=20= =20 return:0 1 15058 filt_timer:entry 2017 Jan 11 20:06:00.530=20=20= =20 kn:fffff800286c4e80 hint:0 1 15059 filt_timer:return 2017 Jan 11 20:06:00.530=20=20= =20 return:0 1 64686 kevent:entry 2017 Jan 11 20:06:00.530 1 15064 filt_timerexpire:entry 2017 Jan 11 20:06:00.531=20=20= =20 kn:fffff800286c4e80 1 15065 filt_timerexpire:return 2017 Jan 11 20:06:00.531=20=20= =20 return:fffff80004224a00 3 15062 filt_timerdetach:entry 2017 Jan 11 20:06:00.531=20=20= =20 kn:fffff800286c4e80 3 15063 filt_timerdetach:return 2017 Jan 11 20:06:00.531=20=20= =20 return:2 3 15062 filt_timerdetach:entry 2017 Jan 11 20:06:00.532=20=20= =20 kn:fffff800286c4e00 3 15063 filt_timerdetach:return 2017 Jan 11 20:06:00.532=20=20= =20 return:1 --=20 You are receiving this mail because: You are the assignee for the bug.=