From owner-freebsd-stable Fri Mar 10 4:59:46 2000 Delivered-To: freebsd-stable@freebsd.org Received: from morpheus.skynet.be (morpheus.skynet.be [195.238.2.39]) by hub.freebsd.org (Postfix) with ESMTP id 2E07637B92C; Fri, 10 Mar 2000 04:59:41 -0800 (PST) (envelope-from blk@skynet.be) Received: from [195.238.1.121] (brad.techos.skynet.be [195.238.1.121]) by morpheus.skynet.be (Postfix) with ESMTP id 42780CDEF; Fri, 10 Mar 2000 13:59:09 +0100 (MET) Mime-Version: 1.0 X-Sender: blk@pop.skynet.be Message-Id: Date: Fri, 10 Mar 2000 13:58:46 +0100 To: FreeBSD-STABLE Mailing List From: Brad Knowles Subject: Weirdest crash I ever saw... Cc: John Baldwin Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Folks, I've seen a few kernel panics in my day (and some pretty weird ones lately), and this one takes the cake. I did a complete CVSup & buildworld last night, and did the installworld this afternoon. All that went fine. I even built and installed a new kernel without a hitch. I was just a step or two away from updating my boot loader, because of code that John had recently fixed in it. Come time to reboot, I get the most whacked-out screen display I've ever seen. The bootloader starts pulling in the kernel, I get down to the "SMP: APIC#1 launched!" (or whatever it is) message, and then almost immediately after that, the disply wigs out (all sorts of high-bit characters flash on screen), and then goes blank for a couple of seconds, and the next thing I see is the following error: PL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 0 (swapper) interrupt mask = net tty <- SMP: XXX trap number = 12 panic: page fault mp_lock = 0100001b; cpuid = 1; lapic.id = 00000000 boot() called on cpu#1 Fatal trap 12: page fault while in kernel mode mp_lock = 0100001c; cpuid = 1; lapic.id = 00000000 fault virtual address = 0xf000f10 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0163417 stack pointer = 0x10:0xc02b7fa8 frame pointer = 0x10:0xc02b7fb4 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 = 0 (swapper) interrupt mask = net tty <- SMP: XXX trap number = 12 panic: page fault mp_lock = 0100001c; cpuid = 1; lapic.id = 00000000 boot( I hope you'll forgive me if I got this slightly wrong -- this is displayed with a really weird wrapping (I'm guessing the text is starting somewhere around line position 60, and then wrapping over to the line below so that the "PL 0, pres 1" stuff is at the beginning of the first visible line), and I had to type it in manually. It actually looks more like this: PL 0, pres 1, def32 1, gran 1 processor eflags = i nterrupt enabled, resume, IOPL = 0 current process = 0 (swapper) interrupt mask = n et tty <- SMP: XXX trap number = 1 Etc.... I think you get the idea. I don't recall whether I've got this thing compiled to support DDB. I'll have to attach a serial line to the machine and see what I can get. Wow. I guess I get to take this opportunity to learn DDB, eh? ;-) Fortunately, I've got another 3.2-RELEASE machine around here that I can use to read the man pages locally, etc.... -- These are my opinions and should not be taken as official Skynet policy ========================================================================= Brad Knowles, Sys. Arch., Mail/News/FTP/Proxy Admin Note: No Microsoft programs were used in the creation or distribution of this message. If you are using a Microsoft program to view this message, be forewarned that I am not responsible for any harm you may encounter as a result. See for details. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message