From owner-freebsd-questions@FreeBSD.ORG Thu May 6 11:30:27 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D984C16A4CE for ; Thu, 6 May 2004 11:30:27 -0700 (PDT) Received: from max.okcupid.com (dsl254-112-036.nyc1.dsl.speakeasy.net [216.254.112.36]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0F19543D39 for ; Thu, 6 May 2004 11:30:27 -0700 (PDT) (envelope-from patrick@okcupid.com) Received: from patrick.okcupid.com ([192.168.0.205]) by max.okcupid.com (8.12.9/8.12.9) with ESMTP id i46IULhH003719; Thu, 6 May 2004 14:30:21 -0400 (EDT) (envelope-from patrick@okcupid.com) Received: from patrick.okcupid.com (localhost [127.0.0.1]) by patrick.okcupid.com (8.12.10/8.12.10) with ESMTP id i46IUKTU001278; Thu, 6 May 2004 14:30:20 -0400 (EDT) (envelope-from patrick@okcupid.com) Received: (from patrick@localhost) by patrick.okcupid.com (8.12.10/8.12.10/Submit) id i46IUF0N001277; Thu, 6 May 2004 14:30:15 -0400 (EDT) (envelope-from patrick@okcupid.com) X-Authentication-Warning: patrick.okcupid.com: patrick set sender to patrick@okcupid.com using -f Date: Thu, 6 May 2004 14:30:15 -0400 From: Patrick Crosby To: Bill Moran Message-ID: <20040506183015.GA793@patrick.okcupid.com> References: <20040504201003.GF845@patrick.okcupid.com> <1083702756.2044.7.camel@localhost.localdomain> <20040505190052.GC1003@patrick.okcupid.com> <20040505194227.GB3573@freebsd.jolok.org> <20040505200145.GH1003@patrick.okcupid.com> <40996577.8050609@potentialtech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <40996577.8050609@potentialtech.com> X-Uptime: 2:25PM up 27 mins, 17 users, load averages: 0.00, 0.00, 0.00 User-Agent: Mutt/1.5.6i cc: freebsd-questions@freebsd.org Subject: Re: athlon-mp daily hang 5.2.1 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 May 2004 18:30:28 -0000 Bill Moran (wmoran@potentialtech.com) wrote: > Patrick Crosby wrote: > >>Be aware that this is still somewhat experimental, and commits to the > >>source tree may occasionally break this feature. If the world fails to > >>compile using this parameter try again without it before you report any > >>problems. > > > >this isn't for a 'make -j4 buildworld', it's for compilation of the > >software i'm developing...i got two cpu's to speed up a 45 minute > >build process... > > > >and, it hangs at other times as well, just most consistently during > >compilation. i'm trying to help find what is causing this so that > >freebsd can improve. > > This is the standard "weird hangs" answer, forgive me if you've already > checked these: > > 1) Does is hang on other hardware as well or just this machine? i'm the only one in the office running CURRENT, and since it is hanging more than 5.1 was, i told everyone else to wait before upgrading. but a coworker (with different hardware [single processor], but also AMD-based) does get hangs like mine. > 2) Have you checked the RAM with memtest86 or similar? yes. > 3) Have you ensured the hardware isn't overheating? i've checked the cpu temp and it is fine. > 4) Is the box in question on a UPS? yes. > These seem to be the most common problems with FreeBSD hanging. I know > none of them have much to do with FreeBSD, but that's just the statistical > reality of it. > > If the answer to #1 indicates an issue with this particular machine, it > could still be a problem with FreeBSD on that particular hardware. > > #4 is a rarity, but I've seen crappy power cause weird problems. Undersized > power supplies can cause similar problems. so i should try running with it off the UPS? the power supply should be ok. fwiw, the coworker who also gets hangs is *not* on a UPS. it could be a building power weirdness (which is why i plugged into the UPS to begin with)... would rebuilding the kernel with INVARIANTS or WITNESS help at all? thanks. patrick