From owner-freebsd-current Tue Oct 6 08:39:40 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA08508 for freebsd-current-outgoing; Tue, 6 Oct 1998 08:39:40 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from echonyc.com (echonyc.com [198.67.15.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA08497 for ; Tue, 6 Oct 1998 08:39:38 -0700 (PDT) (envelope-from benedict@echonyc.com) Received: from localhost by echonyc.com (8.9.1/8.9.1) with SMTP id LAA11044 for ; Tue, 6 Oct 1998 11:39:10 -0400 (EDT) Date: Tue, 6 Oct 1998 11:39:10 -0400 (EDT) From: Snob Art Genre Reply-To: ben@rosengart.com To: current@FreeBSD.ORG Subject: can't dump: fatal trap 12 Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Last night, with a kernel as of yesterday afternoon, I was building world with -j24, cvsup'ing the ports collection, and examining the load with systat, when the console read: /usr/obj: bad dir ino 238127 at offset 2048: mangled entry syncing disks... blah blah blah blah 30 30 30 30 30 30 30 giving up status=0xb, scsi status=0x0 And then the system wouldn't core dump. At DES' suggestion, I compiled up a DDB kernel, booted the system with it, dropped to the debugger, and called panic. The result: syncing disks... Fatal trap 12: page fault while in kernel mode fault virtual address = 0x30 fault code = supervisor read, page not present instruction pointer = 0x8:0xf017af00 stack pointer = 0x10:0xf01d1cdc frame pointer = 0x10:0xf01d1ce0 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 = Idle interrupt mask = tty bio kernel: type 12 trap, code=0 Stopped at _Debugger+0x35: movb $0,_in_Debugger.98 When I called panic again, the system printed a "dumping" message, but simply hung, and eventually printed an I/O error message and offered to reboot. Since the output of nm /kernel | sort is about 175K, rather than spam the list with it, I put it at http://www.interport.net/~float/nm.out. Here is my dmesg.boot: Copyright (c) 1992-1998 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.0-BETA #0: Tue Oct 6 00:07:56 EDT 1998 root@narcissus.net:/usr/src/sys/compile/DSUEVEN Timecounter "i8254" frequency 1193182 Hz cost 3499 ns Timecounter "TSC" frequency 199433076 Hz cost 252 ns CPU: Pentium Pro (199.43-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x617 Stepping=7 Features=0xf9ff real memory = 100663296 (98304K bytes) avail memory = 95535104 (93296K bytes) Probing for devices on PCI bus 0: chip0: rev 0x02 on pci0.0.0 chip1: rev 0x01 on pci0.7.0 vga0: rev 0x06 int a irq 11 on pci0.11.0 bt0: rev 0x08 int a irq 9 on pci0.15.0 bt0: BT-948 FW Rev. 5.05R Ultra Narrow SCSI Host Adapter, SCSI ID 7, 192 CCBs Probing for devices on the ISA bus: sc0 at 0x60-0x6f irq 1 on motherboard sc0: VGA color <16 virtual consoles, flags=0x0> ed0 at 0x300-0x31f irq 10 on isa ed0: address 00:40:05:1e:df:32, type NE2000 (16 bit) sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa sio0: type 16550A sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A lpt0 at 0x378-0x37f irq 7 on isa lpt0: Interrupt-driven port lp0: TCP/IP capable interface pcm0 at 0x220 irq 5 drq 1 on isa WARNING: sb: misconfigured secondary DMA channel fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: FIFO enabled, 8 bytes threshold fd0: 1.44MB 3.5in bt: unit number (1) too high bt1 not found npx0 on motherboard npx0: INT 16 interface changing root device to da0s1a da0 at bt0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI2 device da0: 3.300MB/s transfers, Tagged Queueing Enabled da0: 2048MB (4194304 512 byte sectors: 255H 63S/T 261C) da1 at bt0 bus 0 target 6 lun 0 da1: Fixed Direct Access SCSI2 device da1: 3.300MB/s transfers, Tagged Queueing Enabled da1: 3067MB (6281856 512 byte sectors: 255H 63S/T 391C) WARNING: / was not properly dismounted cd0 at bt0 bus 0 target 2 lun 0 cd0: Removable CD-ROM SCSI2 device cd0: 3.300MB/s transfers cd0: cd present [193127 x 2048 byte records] ffs_mountfs: superblock updated ffs_mountfs: superblock updated ffs_mountfs: superblock updated ffs_mountfs: superblock updated Ben "You have your mind on computers, it seems." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message