From owner-freebsd-stable Thu Apr 29 13:18:28 1999 Delivered-To: freebsd-stable@freebsd.org Received: from tranq1.tranquility.net (tranq1.tranquility.net [206.156.230.1]) by hub.freebsd.org (Postfix) with ESMTP id 97CE81537B for ; Thu, 29 Apr 1999 13:18:24 -0700 (PDT) (envelope-from stephen@math.missouri.edu) Received: from math.missouri.edu (stephen.tranquility.net [206.156.230.78]) by tranq1.tranquility.net (8.9.2/8.9.2) with ESMTP id PAA25335 for ; Thu, 29 Apr 1999 15:17:53 -0500 (CDT) Message-ID: <3728BE87.54FE350C@math.missouri.edu> Date: Thu, 29 Apr 1999 15:18:15 -0500 From: Stephen Montgomery-Smith X-Mailer: Mozilla 4.05 [en] (X11; I; FreeBSD 3.1-STABLE i386) MIME-Version: 1.0 To: freebsd-stable@freebsd.org Subject: Kernel Panic References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Yesterday I replaced a Cyrix 686 (133Mhz) with a Pentium MMX 223Mhz. Then, when I booted up, I got a panic message (that I enclose below). Then I reboot. Since the panic failed to sync the disks, the kernel goes through the process of rebooting, including fixing the incorrect superblocks, and then everything works fine. Today I found out that my /etc was not up to date. My last make world was March 30 1999, whereas my /etc was last updated March 5 1999. The changes don't seem that significant. Could that have caused the problem? I updated /etc, and the problem seems to have stopped. But the panic seems a tough punishment for having /etc 25 days old. Could it be that I have merely slightly changed an odd set of circumstances that trigger this problem, and that I have not found the true cause? The panic message comes just after the kernel sends out the message saying it has started sendmail, and just before the message: Initial rc.i386 initialization: linux so maybe it is the linux emulation that does this. This action has happened many times, so it seems rather consistant. I had to copy the panic message by hand, since as far as I can figure, this message has not been saved anywhere. All of the times, the message was exactly the same. I never had this message when I booted using kernel.GENERIC. I am using FreeBSD 3.1, last make world March 30 1999. Here is the message: kernel trap 12 with interupts disabled Fatal trap 12: page fault while in kernel mode fault virtual address = 0xeffcd004 fault code = supervisor read, page not present instruction pointer = 0x8:0xf01a5c33 stack pointer = 0x10:0xf33d6d38 frame pointer = 0x10:oxf33d6d50 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IPOL = 0 current process = Idle interrupt mask = net tty bio cam trap number = 12 panic: page fault syncing disks ... By the way, the syncing disks message is a lie - at this point it hangs (although it does echo keyboard responses). -- Stephen Montgomery-Smith stephen@math.missouri.edu 307 Math Science Building stephen@showme.missouri.edu Department of Mathematics stephen@missouri.edu University of Missouri-Columbia Columbia, MO 65211 USA Phone (573) 882 4540 Fax (573) 882 1869 http://math.missouri.edu/~stephen To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message