From owner-freebsd-stable@FreeBSD.ORG Fri Sep 26 16:21:03 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 672BD1065687 for ; Fri, 26 Sep 2008 16:21:03 +0000 (UTC) (envelope-from xi@borderworlds.dk) Received: from kazon.borderworlds.dk (kazon.borderworlds.dk [213.239.213.48]) by mx1.freebsd.org (Postfix) with ESMTP id 2B5498FC25 for ; Fri, 26 Sep 2008 16:21:03 +0000 (UTC) (envelope-from xi@borderworlds.dk) Received: from dominion.borderworlds.dk (localhost [127.0.0.1]) by kazon.borderworlds.dk (Postfix) with ESMTP id D0D78170A8 for ; Fri, 26 Sep 2008 18:21:01 +0200 (CEST) Received: by dominion.borderworlds.dk (Postfix, from userid 2000) id 55B5C472; Fri, 26 Sep 2008 18:21:01 +0200 (CEST) To: freebsd-stable@freebsd.org From: Christian Laursen Date: Fri, 26 Sep 2008 18:21:01 +0200 Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: 7.1-PRERELEASE freezes X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Sep 2008 16:21:03 -0000 Hello, I decided to give 7.1-PRERELEASE a try on one of my machines to find out if there might be any problems I should be aware of. I quickly ran into problems. After a while the system freezes completely. It seems to be somehow related to the load of the machine as it doesn't seem to happen when it is idle. I built a kernel with software watchdog enabled and enabled watchdog which had the nice effect of turning the freeze into a panic. Hopefully that will be of some help. I first encountered the problem using SCHED_ULE and then tried if SCHED_4BSD made any difference. But the freeze happens with either scheduler. I have disabled xorg and the nvidia driver but that doesn't help either. I can cut down on various other stuff too, but first I hope that someone here have a more educated guess about what could be the cause of the freezes. I have placed the backtraces from the most recent crashes as well as the demsg output from the most recent boot at this URL: http://borderworlds.dk/~xi/7.1-PRERELEASE.freeze.txt My kernel config is also included. As far as I can tell the two backtraces are identical and look like this: #0 doadump () at pcpu.h:196 #1 0xc05abd03 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418 #2 0xc05abeff in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:572 #3 0xc0570d18 in hardclock (usermode=0, pc=3231434181) at /usr/src/sys/kern/kern_clock.c:642 #4 0xc07d194f in clkintr (frame=0xe38e1c68) at /usr/src/sys/i386/isa/clock.c:164 #5 0xc07c0465 in intr_execute_handlers (isrc=0xc0866700, frame=0xe38e1c68) at /usr/src/sys/i386/i386/intr_machdep.c:366 #6 0xc07d0fa8 in atpic_handle_intr (vector=0, frame=0xe38e1c68) at /usr/src/sys/i386/isa/atpic.c:596 #7 0xc07bbf41 in Xatpic_intr0 () at atpic_vector.s:62 #8 0xc09bc5c5 in acpi_cpu_c1 () at /usr/src/sys/modules/acpi/acpi/../../../i386/acpica/acpi_machdep.c:550 #9 0xc09b54f4 in acpi_cpu_idle () at /usr/src/sys/modules/acpi/acpi/../../../dev/acpica/acpi_cpu.c:945 #10 0xc07c35b6 in cpu_idle () at /usr/src/sys/i386/i386/machdep.c:1183 #11 0xc05c9275 in sched_idletd (dummy=0x0) at /usr/src/sys/kern/sched_4bsd.c:1429 #12 0xc05895d6 in fork_exit (callout=0xc05c9260 , arg=0x0, frame=0xe38e1d38) at /usr/src/sys/kern/kern_fork.c:804 #13 0xc07bbf10 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:264 I can provide more information as needed. Any help will be greatly appreciated. Thanks. -- Christian Laursen