From owner-freebsd-bugs Mon Aug 27 10:50: 5 2001 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 88F6837B407 for ; Mon, 27 Aug 2001 10:50:02 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.4/8.11.4) id f7RHo2j29464; Mon, 27 Aug 2001 10:50:02 -0700 (PDT) (envelope-from gnats) Date: Mon, 27 Aug 2001 10:50:02 -0700 (PDT) Message-Id: <200108271750.f7RHo2j29464@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: Martin Blapp Subject: Re: kern/30135: Time drifting on STABLE SMP when calling gettimeofday Reply-To: Martin Blapp Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org The following reply was made to PR kern/30135; it has been noted by GNATS. From: Martin Blapp To: Cc: Subject: Re: kern/30135: Time drifting on STABLE SMP when calling gettimeofday Date: Mon, 27 Aug 2001 19:55:23 +0200 (CEST) I've to add: It is a forward timedrifting. And also these lines may be interesting: APIC_IO: Testing 8254 interrupt delivery APIC_IO: Broken MP table detected: 8254 is not connected to IOAPIC #0 intpin 2 APIC_IO: routing 8254 via 8259 and IOAPIC #0 intpin 0 On single CPU on the same CPU there is NO time-drifting. So it is related to SMP. But why does gettimeofday() modify the system counter only on SMP systems ? Martin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message