From owner-freebsd-stable Wed Oct 23 21:23:15 1996 Return-Path: owner-stable Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id VAA09778 for stable-outgoing; Wed, 23 Oct 1996 21:23:15 -0700 (PDT) Received: from mail.webspan.net (mail.webspan.net [206.154.70.7]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id VAA09769; Wed, 23 Oct 1996 21:23:07 -0700 (PDT) Received: from orion.webspan.net (orion.webspan.net [206.154.70.5]) by mail.webspan.net (8.7.5/8.7.3) with ESMTP id AAA03059; Thu, 24 Oct 1996 00:22:58 -0400 (EDT) Received: from orion.webspan.net (localhost [127.0.0.1]) by orion.webspan.net (8.7.5/8.7.3) with ESMTP id AAA06376; Thu, 24 Oct 1996 00:21:31 -0400 (EDT) To: freebsd-stable@freebsd.org CC: gibbs@freebsd.org From: "Gary Palmer" Subject: Panic (unusual) Date: Thu, 24 Oct 1996 00:21:30 -0400 Message-ID: <6373.846130890@orion.webspan.net> Sender: owner-stable@freebsd.org X-Loop: FreeBSD.org Precedence: bulk One of the servers here just suffered an unusual panic. Machine details: FreeBSD 2.1.5-STABLE #0: Sun Aug 18 06:59:41 EDT 1996 root@mail2.webspan.net:/usr/src/sys/compile/MAIL CPU: 199-MHz unknown (Pentium-class CPU) Origin = "GenuineIntel" Id = 0x617 Stepping=7 Features=0xf9ff,MTRR,PGE,MCA,CMOV> real memory = 67108864 (65536K bytes) avail memory = 64114688 (62612K bytes) Probing for devices on PCI bus 0: chip0 rev 2 on pci0:0 chip1 rev 0 on pci0:7:0 chip2 rev 0 on pci0:7:1 chip3 rev 2 on pci0:11 de0 rev 18 int a irq 3 on pci0:17 de0: DC21140 [10-100Mb/s] pass 1.2 Ethernet address 00:00:c0:d7:df:e3 de0: enabling 100baseTX UTP port Probing for devices on PCI bus 1: ahc0 rev 0 int a irq 4 on pci1:4 ahc0: aic7880 Wide Channel A, SCSI Id=7, 16 SCBs (ahc0:0:0): "Quantum XP34300W L912" type 0 fixed SCSI 2 sd1(ahc0:0:0): Direct-Access 4101MB (8399520 512 byte sectors) ahc1 rev 0 int a irq 7 on pci1:5 ahc1: aic7880 Wide Channel B, SCSI Id=7, 16 SCBs (ahc1:0:0): "HP C3728S 5155" type 0 fixed SCSI 2 sd0(ahc1:0:0): Direct-Access 2047MB (4194058 512 byte sectors) ahc1:A:4: refuses WIDE negotiation. Using 8bit transfers (ahc1:4:0): "NEC CD-ROM DRIVE:222 3.0i" type 5 removable SCSI 2 cd1(ahc1:4:0): CD-ROM cd1(ahc1:4:0): NOT READY asc:4,0 cd1(ahc1:4:0): Logical unit not ready, cause not reportable can't get the size Probing for devices on the ISA bus: sc0 at 0x60-0x6f irq 1 on motherboard sc0: VGA color <16 virtual consoles, flags=0x0> sio0 not found at 0x3f8 sio1 not found at 0x2f8 lpt0 at 0x378-0x37f irq 7 on isa lpt0: Interrupt-driven port lp0: TCP/IP capable interface fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: NEC 72065B fd0: 1.44MB 3.5in npx0 on motherboard npx0: INT 16 interface WARNING: / was not properly dismounted. (aside: for some reason, the com ports don't like the BIOS now, so I had to disable them in the BIOS) I now have an interesting problem: root@mail:/var/crash> gdb kernel.0 vmcore.0 GDB is free software and you are welcome to distribute copies of it under certain conditions; type "show copying" to see the conditions. There is absolutely no warranty for GDB; type "show warranty" for details. GDB 4.13 (i386-unknown-freebsd), Copyright 1994 Free Software Foundation, Inc...(no debugging symbols found)... "/var/crash/vmcore.0" is not a core dump: File format not recognized (gdb) :-( By grubbing through the core file manually, I see: ahc1: ahc_scsi_cmd: more than 256 DMA segs sd0: oops not queued panic: biodone: buffer not busy I thought I hadn't got savecore enabled, so my rough scribblings are (sorry for some bits missing, I needed to get this machine on its feet again): _Debugger _panic _biodone(f373ea68,f015a645,0) _biodone + 0x31 _sdstart(0,0,0f1729d14,f373ea68) _ststart + 0x15f _scsi_strategy(unknown) _scsi_strategy + 0x84 _sdstrategy(unknown) _sdstrategy + 0x10 _spec_strategy(ubkbwon) _spec_strategy + 0x20 _ufs_strategy(efbffe14) _ufs_strategy + 0xba _cluster_read(unknown) _cluster_read + 0x35d _ffs_read(unknown) _ffs_read + 0x21d _vn_read(unknown) _vn_read + 0xa0 _read(f1b6500,efbfff1c,efbfff8c,80b7060,e60bc) _read + 0xa7 _syscall(unknown) _Xsyscall(unknown) ---syscall Anyone know: a) what caused this, and how to prevent it happening again? b) how to get any more info out of that core file? Thanks, Gary -- Gary Palmer FreeBSD Core Team Member FreeBSD: Turning PC's into workstations. See http://www.FreeBSD.ORG/ for info