From owner-freebsd-current Tue Sep 24 09:44:23 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id JAA22062 for current-outgoing; Tue, 24 Sep 1996 09:44:23 -0700 (PDT) Received: from post.io.org (post.io.org [198.133.36.6]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id JAA22027 for ; Tue, 24 Sep 1996 09:44:18 -0700 (PDT) Received: from zap.io.org (taob@zap.io.org [198.133.36.81]) by post.io.org (8.7.5/8.7.3) with SMTP id MAA09023 for ; Tue, 24 Sep 1996 12:44:11 -0400 (EDT) Date: Tue, 24 Sep 1996 12:44:11 -0400 (EDT) From: Brian Tao To: FREEBSD-CURRENT-L Subject: Kernel panic in exit1() in /sys/kern/kern_exit.c Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-current@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I've seen this a couple times on a 2-2960801-SNAP system. It is a shell server, typically with 50+ concurrent logins. The first time, 'uptime' caused the kernel panic. This time, 'vi' caused it. Fatal trap 12: page fault while in kernel mode fault virtual address = 0x429e64 fault code = supervisor write, page not present instruction pointer = 0x8:0xf0105a7d stack pointer = 0x10:0xefbfff3c frame pointer = 0x10:0xefbfff48 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 = 5529 (vi) interrupt mask = panic: page fault # nm -a /kernel | sort | fgrep f0105 f01054a8 T _exec_new_vmspace f0105520 T _exec_extract_strings f01055e8 t _exec_copyout_strings f010573c t _exec_check_permissions f0105850 F kern_exit.o f0105850 T _exit f01058a4 T _exit1 <==== f0105ba4 T _owait f0105bdc T _wait4 f0105bf8 t _wait1 f0105eb0 T _proc_reparent f0105f00 F kern_fork.o f0105f00 T _fork f0105f14 T _vfork f0105f28 T _rfork f0105f4c t _fork1 FreeBSD 2.2-960801-SNAP #0: Sun Aug 25 17:00:05 EDT 1996 taob@feh.io.org:/u/src/sys/compile/SHELL Calibrating clock(s) relative to mc146818A clock... i586 clock: 132618543 Hz, i8254 clock: 1193065 Hz CPU: Pentium (132.62-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x52b Stepping=11 Features=0x1bf real memory = 134217728 (131072K bytes) avail memory = 130273280 (127220K bytes) Probing for devices on PCI bus 0: chip0 rev 2 on pci0:0 chip1 rev 2 on pci0:7:0 pci0:7:1: Intel Corporation, device=0x1230, class=storage (ide) [no driver assigned] ncr0 rev 2 int a irq 11 on pci0:10 ncr0 waiting for scsi devices to settle (ncr0:0:0): "QUANTUM FIREBALL1080S 1Q09" type 0 fixed SCSI 2 sd0(ncr0:0:0): Direct-Access sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8. 1042MB (2134305 512 byte sectors) sd0(ncr0:0:0): with 3835 cyls, 4 heads, and an average 139 sectors/track de0 rev 18 int a irq 14 on pci0:11 de0: SMC 9332 DC21140 [10-100Mb/s] pass 1.2 de0: address 00:00:c0:84:46:c8 de0: enabling 10baseT port vga0 rev 227 int a irq ?? on pci0:12 Probing for devices on the ISA bus: pcvt: doreset() - got KEYB_R_RESEND response ... [one time only msg] pcvt: doreset() - Caution - no PC keyboard detected! vt0 at 0x60-0x6f irq 1 on motherboard vt0: unknown trident, 80 col, color, 8 scr, unknown kbd, [R3.20-b24] sio0 at 0x3f8-0x3ff irq 4 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: NEC 72065B fd0: 1.44MB 3.5in npx0 on motherboard npx0: INT 16 interface machine "i386" cpu "I586_CPU" ident SHELL maxusers 128 options INET options FFS options NFS options MSDOSFS options PROCFS options QUOTA options "COMPAT_43" options "SCSI_DELAY=5" options SCSIDEBUG options SCSI_REPORT_GEOMETRY options UCONSOLE options SYSVSHM options SYSVSEM options SYSVMSG options PROBE_VERBOSE options "NMBCLUSTERS=4096" options "MAXMEM=131072" config kernel root on sd0 controller isa0 controller pci0 controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr disk fd0 at fdc0 drive 0 controller ncr0 controller scbus0 device sd0 device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint options "PCVT_FREEBSD=210" options "PCVT_META_ESC" device npx0 at isa? port "IO_NPX" irq 13 vector npxintr device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr device de0 pseudo-device loop pseudo-device ether pseudo-device log pseudo-device pty 256 pseudo-device bpfilter 4 pseudo-device snp 4 -- Brian Tao (BT300, taob@io.org, taob@ican.net) Senior Systems and Network Administrator, Internet Canada Corp. "Though this be madness, yet there is method in't"