From owner-freebsd-hackers Tue Nov 16 0:40:33 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from clifford.inch.com (clifford.inch.com [207.240.140.163]) by hub.freebsd.org (Postfix) with ESMTP id C068014CB8 for ; Tue, 16 Nov 1999 00:40:28 -0800 (PST) (envelope-from omar@clifford.inch.com) Received: (from omar@localhost) by clifford.inch.com (8.9.3/8.8.5) id CAA31593 for hackers@FreeBSD.ORG; Tue, 16 Nov 1999 02:57:50 -0500 Message-ID: <19991116025749.A31559@clifford.inch.com> Date: Tue, 16 Nov 1999 02:57:50 -0500 From: Omar Thameen To: hackers@FreeBSD.ORG Subject: panic: page fault - need help with diagnosis Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi, We have a server running 3.2-RELEASE #2 (see dmesg below) which crashed during a period of light activity. It's a dedicated server hosting one large web site (Apache 1.3.4 with php) and a half dozen smaller sites. There's a mysql server as well, though the main db work is done by a separate machine. The server became remotely unresponsive (couldn't ping, couldn't console in) and had nothing in the logs. It was locked with the following on the screen, which I transcribed. I had to hit the reset switch to bring it back. Can anyone offer any insight as to what happened and if there are any problems? Thanks much, Omar ------------------------- Begin included text ------------------------- panic: free: multiple pfrees syncing disks... Fatal trap 12: page fault while in kernel mode fault virtual address = 0xb8 fault code = supervisor read, page not present instruction pointer = 0x8:0xc01492eb stack pointer = 0x10:0xc01ef2cc frame pointer = 0x10:0xc01ef2e0 code segment = base 0x0, limit 0xfffff, type 0x1b = TPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = idle interrupt mask = net tty bio cam trap number = 12 panic: page fault -------------------------- End included text -------------------------- dmesg output: ------------------------- Begin included text ------------------------- Copyright (c) 1992-1999 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.2-RELEASE #2: Mon Aug 2 12:23:54 EDT 1999 spork@:/usr/src/sys/compile/LOCAL_KERN Timecounter "i8254" frequency 1193182 Hz Timecounter "TSC" frequency 350797746 Hz CPU: Pentium II/Xeon/Celeron (350.80-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x652 Stepping=2 Features=0x183f9ff> real memory = 536870912 (524288K bytes) avail memory = 519847936 (507664K bytes) Preloaded elf kernel "kernel" at 0xc0255000. Preloaded userconfig_script "/boot/kernel.conf" at 0xc025509c. Probing for devices on PCI bus 0: chip0: rev 0x02 on pci0.0.0 chip1: rev 0x02 on pci0.1.0 chip2: rev 0x02 on pci0.4.0 chip3: rev 0x02 on pci0.4.3 ahc0: rev 0x00 int a irq 10 on pci0.6.0 ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs fxp0: rev 0x05 int a irq 11 on pci0.7.0 fxp0: Ethernet address 00:e0:18:90:ad:51 vga0: rev 0xd3 int a irq 10 on pci0.9.0 Probing for devices on PCI bus 1: Probing for PnP devices: Probing for devices on the ISA bus: sc0 on isa sc0: VGA color <16 virtual consoles, flags=0x0> atkbdc0 at 0x60-0x6f on motherboard atkbd0 irq 1 on isa sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa sio0: type 16550A sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: FIFO enabled, 8 bytes threshold fd0: 1.44MB 3.5in ppc0 at 0x378 irq 7 flags 0x40 on isa ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/9 bytes threshold lpt0: on ppbus 0 lpt0: Interrupt-driven port ppi0: on ppbus 0 plip0: on ppbus 0 lpt0: on ppbus 0 lpt0: Interrupt-driven port vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa npx0 on motherboard npx0: INT 16 interface Waiting 2 seconds for SCSI devices to settle changing root device to da0s1a da0 at ahc0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 16, 16bit), Tagged Queueing Enabled da0: 4357MB (8923136 512 byte sectors: 255H 63S/T 555C) da1 at ahc0 bus 0 target 0 lun 1 da1: Fixed Direct Access SCSI-2 device da1: 40.000MB/s transfers (20.000MHz, offset 16, 16bit), Tagged Queueing Enabled da1: 8715MB (17848320 512 byte sectors: 255H 63S/T 1111C) WARNING: / was not properly dismounted -------------------------- End included text -------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message