From owner-freebsd-current@FreeBSD.ORG Fri Oct 17 17:05:19 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4321616A4B3 for ; Fri, 17 Oct 2003 17:05:19 -0700 (PDT) Received: from perrin.nxad.com (internal.nxad.com [69.1.70.251]) by mx1.FreeBSD.org (Postfix) with ESMTP id A750F43FAF for ; Fri, 17 Oct 2003 17:05:18 -0700 (PDT) (envelope-from sean@nxad.com) Received: by perrin.nxad.com (Postfix, from userid 1001) id 9321F2105C; Fri, 17 Oct 2003 17:05:17 -0700 (PDT) Date: Fri, 17 Oct 2003 17:05:17 -0700 From: Sean Chittenden To: Jeff Roberson Message-ID: <20031018000517.GA71795@perrin.nxad.com> References: <20031017092434.GA45975@perrin.nxad.com> <20031017054543.E30029-100000@mail.chesapeake.net> <20031017162310.GG86551@perrin.nxad.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031017162310.GG86551@perrin.nxad.com> X-PGP-Key: finger seanc@FreeBSD.org X-PGP-Fingerprint: 3849 3760 1AFE 7B17 11A0 83A6 DD99 E31F BC84 B341 X-Web-Homepage: http://sean.chittenden.org/ User-Agent: Mutt/1.5.4i cc: current@freebsd.org Subject: Re: More ULE bugs fixed. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Oct 2003 00:05:19 -0000 > > > > I think you cvsup'd at a bad time. I fixed a bug that would have > > > > caused the system to lock up in this case late last night. On my > > > > system it freezes for a few seconds and then returns. I can stop > > > > that by turning down the interactivity threshold. > > > > > > Hrm, I must concur that while ULE seems a tad snappier on the > > > responsiveness end, it seems to be lacking in terms of real world > > > performance compared to 4BSD. > > > > Thanks for the stats. Is this on SMP or UP? > > UP. -sc The commit to src/sys/kern/kern_switch.c:1.62, would it fix the following crash (can't find my kernel with debugging symbols): Fatal trap 12: page fault while in kernel mode fault virtual address = 0x30 fault code = supervisor write, page not present instruction pointer = 0x8:0xc054699f stack pointer = 0x10:0xd6713b20 frame pointer = 0x10:0xd6713b2c code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 3 (g_up) trap number = 12 panic: page fault syncing disks, buffers remaining... Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0536771 stack pointer = 0x10:0xdb7d4bb4 frame pointer = 0x10:0xdb7d4bc0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 45 (syncer) trap number = 12 panic: page fault #0 0xc052eeeb in doadump () #1 0xc052f579 in boot () #2 0xc052f958 in panic () #3 0xc06e5536 in trap_fatal () #4 0xc06e4b73 in trap () #5 0xc06d53d8 in calltrap () #6 0xc05460bb in sched_switch () #7 0xc05384eb in mi_switch () #8 0xc0537b9f in msleep () #9 0xc058eca3 in sched_sync () #10 0xc0518321 in fork_exit () -sc -- Sean Chittenden