Date: Fri, 7 Aug 1998 13:09:59 -0700 (PDT) From: "Steven G. Kargl" <kargl@troutmask.apl.washington.edu> To: freebsd-current@FreeBSD.ORG Subject: vm panic Message-ID: <199808072009.NAA00348@troutmask.apl.washington.edu>
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Ladies and Gents,
I cvsup'd on Aug 7 at 12:02 pst.
make world survives.
Build a new kernel, and reboot gives (transcribed by hand)
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xeffd300c
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf01d3187
stack pointer = 0x10:0xf4bfeae8
frame pointer = 0x10:0xf4bfeb08
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = idle
interrupt mask = net tty bio cam
kernel: type 12 trap, code = 0
Stopped at _pmap_enter+0x97; movl 0(%ecx), %ecx
The initial part of a trace at the DDB> prompt gives
_pmap_enter
_vm_fault
_trap_pfault
_trap
_calltrap
Sources cvssup'd from Aug 5 at 09:35 pst do not exhibit this
problem. Dmesg output follow sig.
--
Steve
finger kargl@troutmask.apl.washington.edu
http://troutmask.apl.washington.edu/~clesceri/kargl.html
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-CURRENT #7: Fri Jul 31 13:24:39 PDT 1998
root@troutmask.apl.washington.edu:/usr/src/sys/compile/TROUTMASK
Timecounter "i8254" frequency 1193182 Hz cost 2854 ns
Timecounter "TSC" frequency 119752513 Hz cost 225 ns
CPU: Pentium/P54C (119.75-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x525 Stepping=5
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 100663296 (98304K bytes)
avail memory = 95412224 (93176K bytes)
DEVFS: ready for devices
Probing for devices on PCI bus 0:
chip0: <Intel 82437FX PCI cache memory controller> rev 0x02 on pci0.0.0
chip1: <Intel 82371FB PCI to ISA bridge> rev 0x02 on pci0.7.0
vga0: <S3 968 graphics accelerator> rev 0x00 int a irq 12 on pci0.10.0
ahc0: <Adaptec 2940 SCSI host adapter> rev 0x03 int a irq 11 on pci0.12.0
ahc0: aic7870 Single Channel, SCSI Id=7, 16/255 SCBs
ahc0: waiting for scsi devices to settle
scbus0 at ahc0 bus 0
ahc0: target 0 Tagged Queuing Device
sd0 at scbus0 target 0 lun 0
sd0: <QUANTUM XP34550S LXY1> type 0 fixed SCSI 2
sd0: Direct-Access 4341MB (8890760 512 byte sectors)
ahc0: target 1 Tagged Queuing Device
sd1 at scbus0 target 1 lun 0
sd1: <QUANTUM EMPIRE_1080S 1220> type 0 fixed SCSI 2
sd1: Direct-Access 1029MB (2109376 512 byte sectors)
sd2 at scbus0 target 2 lun 0
sd2: <QUANTUM LIGHTNING 730S 241E> type 0 fixed SCSI 2
sd2: Direct-Access 699MB (1431760 512 byte sectors)
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <8 virtual consoles, flags=0x0>
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
gp0 at 0x2c0 irq 5 on isa
gp0: type AT-GPIB/TNT
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
1 3C5x9 board(s) on ISA found at 0x300
ep0 at 0x300-0x30f irq 10 on isa
ep0: aui/utp/bnc[*UTP*] address 00:20:af:28:08:03
npx0 on motherboard
npx0: INT 16 interface
Intel Pentium F00F detected, installing workaround
DEVFS: ready to run
changing root device to sd0s1a
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