Date: Mon, 28 Apr 1997 10:31:33 +0300 (IDT) From: Mighty Wizard <root@Burka.NetVision.net.il> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/3404: kernel panic Message-ID: <199704280731.KAA00388@Burka.NetVision.net.il> Resent-Message-ID: <199704280740.AAA29126@hub.freebsd.org>
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>Number: 3404
>Category: kern
>Synopsis: frequent kernel panics
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Apr 28 00:40:01 PDT 1997
>Last-Modified:
>Originator: Mighty Wizard
>Organization:
NetVision Ltd.
>Release: FreeBSD 3.0-CURRENT i386
>Environment:
I'm running the latest -current.
Here is my kernel config:
#
# BURKA -- my desktop machine
#
# $Id: BURKA,v 1.1 1995/01/26 11:38:00 gena Exp $
#
machine "i386"
cpu "I586_CPU"
maxusers 20
ident BURKA
options INET #InterNETworking
options FFS #Berkeley Fast File System
options PROCFS #Process File System
options DDB
options "COMPAT_43" #Compatible with BSD 4.3
options SYSVSHM
options SYSVSEM
options SYSVMSG
options UCONSOLE #X Console support
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
config kernel root on sd0
controller isa0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
device npx0 at isa? port "IO_NPX" iosiz 0x0 flags 0x07 irq 13 vector npxintr
device sio0 at isa? port "IO_COM1" tty flags 0x00 irq 4 vector siointr
device sio1 at isa? port "IO_COM2" tty flags 0x00 irq 3 vector siointr
device lpt0 at isa? port? tty irq 7 vector lptintr
device ep0 at isa? port 0x300 net irq 10 vector epintr
controller pci0
controller ahc1
controller scbus0
device vx0
device sd0
pseudo-device snp 1 #Snoop device - to look at pty/vty/etc..
pseudo-device loop
pseudo-device ether
pseudo-device log
pseudo-device tun 1
pseudo-device pty 16
pseudo-device speaker
pseudo-device bpfilter 1 #berkeley packet filter
Dmesg output:
Copyright (c) 1992-1997 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-CURRENT #0: Sun Apr 27 12:29:16 IDT 1997
root@Burka.NetVision.net.il:/usr/src/sys/compile/BURKA
CPU: Pentium (90.00-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x525 Stepping=5
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 41943040 (40960K bytes)
avail memory = 39325696 (38404K bytes)
Probing for devices on PCI bus 0:
chip0 <SiS 85c501> rev 64 on pci0:0:0
chip1 <SiS 85c503> rev 1 on pci0:1:0
pci0:8: CMD, device=0x0640, class=storage (ide) int a irq 14 [no driver assigned]
vga0 <VGA-compatible display device> rev 0 int a irq ?? on pci0:9:0
vx0 <3COM 3C590 Etherlink III PCI> rev 0 int a irq 9 on pci0:11:0
utp[*utp*] address 00:20:af:f7:f2:dd
Warning! Defective early revision adapter!
ahc0 <Adaptec 2940 SCSI host adapter> rev 0 int a irq 11 on pci0:12:0
ahc0: aic7870 Single Channel, SCSI Id=7, 16 SCBs
scbus0 at ahc0 bus 0
sd0 at scbus0 target 0 lun 0
sd0: <HP C3725S 4299> type 0 fixed SCSI 2
sd0: Direct-Access 2069MB (4238836 512 byte sectors)
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 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
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
1 3C5x9 board(s) on ISA found at 0x300
ep0 at 0x300-0x30f irq 10 on isa
ep0: utp[*UTP*] address 00:60:97:23:a2:8b
npx0 flags 0x7 on motherboard
npx0: INT 16 interface
WARNING: / was not properly dismounted.
Mount output:
/dev/sd0a on / (local)
/dev/sd0e on /usr (local)
procfs on /proc (local)
>Description:
My system panics every few hours. I already send bug report about
another panic (in _in_setsockaddr). Not sure if those two are related.
Here is DDB output (copied from the screen):
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x1e
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf010c830
stack pointer = 0x10:0xf4122f30
frame pointer = 0x10:0xf4122f30
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL0 , pres 1 , def 321 , gran 1
processor eflags = interrupt enabled, resum, IOPL = 0
current process = 4 (update)
interrupt mask =
kernel: type 12 trap, code = 0
Stopped at _lockstatus+0x8: cmpw $0,0x10(%edx)
-------------------trace--------------
_ufs_islocked+0x15
_vfs_msync+0x38
_sync+0x4c
_vfs_update+0x3b
_kproc_start+0x32
_fork_trampoline+0x1d
>How-To-Repeat:
There is no reilable way to repeat this...
>Fix:
>Audit-Trail:
>Unformatted:
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