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Date: Mon, 6 Oct 1997 20:19:41 +0200
From: Werner Griessl <werner@btp1da.phy.uni-bayreuth.de>
To: stable@freebsd.org
Subject: panic on 2.2-stable from today
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A 2.2-stable kernel after a make world and new kernel-build
from today (Mon Oct 6) panics for me with:

kernel: type 12 trap, code 0
stopped at _pmap_extract+0x28: movl 0(%edx,%eax,4),%edx

Rebooting the system with the old kernel from Oct 1 everything
is fine.

Werner

Here is the dmesg from the old kernel:

Copyright (c) 1992-1997 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.

FreeBSD 2.2-STABLE #0: Wed Oct  1 14:37:38 MEST 1997
    croot@btp1da.phy.uni-bayreuth.de:/spare/F/src/sys/compile/BTP1DA
CPU: Pentium (199.43-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x544  Stepping=4
  Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory  = 33554432 (32768K bytes)
avail memory = 31035392 (30308K bytes)
Probing for devices on PCI bus 0:
chip0 <Intel 82439> rev 1 on pci0:0
chip1 <Intel 82371SB PCI-ISA bridge> rev 1 on pci0:7:0
chip2 <Intel 82371SB IDE interface> rev 0 on pci0:7:1
vga0 <VGA-compatible display device> rev 84 int a irq 11 on pci0:14
ncr0 <ncr 53c810a fast10 scsi> rev 17 int a irq 10 on pci0:15
(ncr0:0:0): 5.0 MB/s (200 ns, offset 8)
(ncr0:0:0): "IBM OEM 0664M1H 7 70" type 0 fixed SCSI 2
sd0(ncr0:0:0): Direct-Access 
sd0(ncr0:0:0): 10.0 MB/s (100 ns, offset 8)
1920MB (3933040 512 byte sectors)
(ncr0:1:0): "DEC DSP3160S 426F" type 0 fixed SCSI 2
sd1(ncr0:1:0): Direct-Access 
sd1(ncr0:1:0): 10.0 MB/s (100 ns, offset 8)
1526MB (3125408 512 byte sectors)
(ncr0:2:0): "TOSHIBA CD-ROM XM-5401TA 3605" type 5 removable SCSI 2
cd0(ncr0:2:0): CD-ROM 
cd0(ncr0:2:0): asynchronous.
can't get the size
(ncr0:3:0): "IBM DCAS-34330 S65A" type 0 fixed SCSI 2
sd2(ncr0:3:0): Direct-Access 
sd2(ncr0:3:0): 10.0 MB/s (100 ns, offset 8)
4134MB (8467200 512 byte sectors)
Probing for devices on the ISA bus:
vt0 at 0x60-0x6f irq 1 on motherboard
vt0: unkown s3, 80 col, color, 8 scr, mf2-kbd, [R3.20-b24]
ed0 at 0x280-0x29f irq 5 maddr 0xd8000 msize 16384 on isa
ed0: address 00:00:c0:ac:a3:61, type WD8013EPC (16 bit) 
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
lpt1 not found at 0xffffffff
mcac0 at 0x340 irq 12 on isa
mca0-63: Bitzer Digital-I/O 0:static (NBPG=4096) 19970812
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 flags 0x80008000 on isa
wdc0: unit 0 (wd0): <QUANTUM FIREBALL1280A>, 32-bit
wd0: 1222MB (2503872 sectors), 2484 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 not found at 0x170
npx0 on motherboard
npx0: INT 16 interface
WARNING: / was not properly dismounted.