From owner-freebsd-current Wed Feb 7 16: 3:50 2001 Delivered-To: freebsd-current@freebsd.org Received: from harmony.village.org (unknown [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id 190C237B6A4 for ; Wed, 7 Feb 2001 16:03:33 -0800 (PST) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.11.1/8.11.1) with ESMTP id f1802p996815; Wed, 7 Feb 2001 17:03:00 -0700 (MST) (envelope-from imp@harmony.village.org) Message-Id: <200102080003.f1802p996815@harmony.village.org> To: farid.hajji@ob.kamp.net Subject: Re: Strange fopen() behaviour Cc: brian@Awfulhak.org, domi@saargate.de, freebsd-current@FreeBSD.ORG In-reply-to: Your message of "Wed, 07 Feb 2001 00:34:18 +0100." <200102062334.f16NYI229243@mail-ob.kamp.net> References: <200102062334.f16NYI229243@mail-ob.kamp.net> <200102060324.f163O0610286@hak.lan.Awfulhak.org> Date: Wed, 07 Feb 2001 17:02:51 -0700 From: Warner Losh Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <200102062334.f16NYI229243@mail-ob.kamp.net> Farid Hajji writes: : > dev.lan.Awfulhak.org kernel log messages: : > > microuptime() went backwards (18415.166882 -> 18415.158249) : > > microuptime() went backwards (18490.192910 -> 18490.187579) : > > microuptime() went backwards (19572.644000 -> 19572.638237) : > > microuptime() went backwards (19878.637972 -> 19878.637330) : > > microuptime() went backwards (20043.869158 -> 20043.868971) : > > microuptime() went backwards (20074.159108 -> 20074.152253) : > > microuptime() went backwards (20210.078270 -> 20210.072448) : I'm also seing this as of CURRENT-2001-01-27 and later: : pcm1: hwptr went backwards 36 -> 0 : pcm1: hwptr went backwards 40 -> 16 : pcm1: hwptr went backwards 2084 -> 2048 : pcm1: hwptr went backwards 2092 -> 2064 That's different. It is a sound thing that's related to the really crappy interrupt performance that we have in current. You'll likely see it as far back as october or so (I was seeing them at BSDCON). Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message