Date: Sun, 01 Dec 1996 17:33:14 -0600 From: Chris Csanady <ccsanady@friley216.res.iastate.edu> To: freebsd-smp@freebsd.org Subject: pmap_enter: modified page not writable... Message-ID: <199612012333.RAA00322@friley216.res.iastate.edu>
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I get a bunch of these when running the kernel built today. However,
everything seems to be working ok. This is with APIC_IO.
pmap_enter: modified page not writable: va: 0x58000, pte: 0x881465
pmap_remove: modified page not writable: va: 0x44000, pte: 0xee0465
pmap_remove_all: modified page not writable: va: 0x43000, pte: 0xeb4465
Enclosed is an mptable+dmesg fwiw..
Chris
===============================================================================
MPTable, version 2.0.4
looking for EBDA pointer @ 0x040e, found, searching EBDA @ 0x0009fc00
searching CMOS 'top of mem' @ 0x0009f800 (638K)
searching default 'top of mem' @ 0x0009fc00 (639K)
searching BIOS @ 0x000f0000
MP FPS found in BIOS @ physical addr: 0x000f0c80
-------------------------------------------------------------------------------
MP Floating Pointer Structure:
location: BIOS
physical address: 0x000f0c80
signature: '_MP_'
length: 16 bytes
version: 1.1
checksum: 0xf4
mode: Virtual Wire
-------------------------------------------------------------------------------
MP Config Table Header:
physical address: 0x000f0c94
signature: 'PCMP'
base table length: 292
version: 1.1
checksum: 0x31
OEM ID: 'OEM00000'
Product ID: 'PROD00000000'
OEM table pointer: 0x00000000
OEM table size: 0
entry count: 28
local APIC address: 0xfee00000
extended table length: 0
extended table checksum: 0
-------------------------------------------------------------------------------
MP Config Base Table Entries:
--
Processors: APIC ID Version State Family Model Step Flags
0 0x11 BSP, usable 5 2 1 0x07bf
1 0x11 AP, usable 5 2 1 0x07bf
--
Bus: Bus ID Type
0 ISA
1 PCI
--
I/O APICs: APIC ID Version State Address
2 0x11 usable 0xfec00000
--
I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID INT#
ExtINT conforms conforms 0 0 2 0
INT conforms conforms 0 1 2 1
INT conforms conforms 0 0 2 2
INT conforms conforms 0 3 2 3
INT conforms conforms 0 4 2 4
INT conforms conforms 0 5 2 5
INT conforms conforms 0 6 2 6
INT conforms conforms 0 7 2 7
INT conforms conforms 0 8 2 8
INT conforms conforms 0 9 2 9
INT conforms conforms 0 10 2 10
INT conforms conforms 0 11 2 11
INT conforms conforms 0 12 2 12
INT conforms conforms 0 13 2 13
INT conforms conforms 0 14 2 14
INT conforms conforms 0 15 2 15
INT active-lo level 1 8:A 2 16
INT active-lo level 1 9:A 2 17
INT active-lo level 1 10:A 2 18
INT active-lo level 1 12:A 2 19
SMI conforms conforms 0 0 2 23
--
Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID INT#
ExtINT active-hi edge 0 0 255 0
NMI active-hi edge 0 0 255 1
-------------------------------------------------------------------------------
dmesg output:
init386 done CR0 = 80000011
Copyright (c) 1992-1996 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-SMP #0: Sun Dec 1 17:23:57 CST 1996
root@friley216.res.iastate.edu:/local/sys/compile/SMP
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00030010
cpu1 (AP): apic id: 1, version: 0x00030010
io0 (APIC): apic id: 2, version: 0x00170011
Calibrating clock(s) relative to mc146818A clock ... i8254 clock: 1193527 Hz
CPU: Pentium (586-class CPU)
Origin = "GenuineIntel" Id = 0x52c Stepping=12
Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
real memory = 33554432 (32768K bytes)
avail memory = 30867456 (30144K 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 1 int a irq 18 on pci0:10
Freeing (NOT implimented) irq 11 for ISA cards.
ahc0 <Adaptec aic7880 Ultra SCSI host adapter> rev 0 int a irq 19 on pci0:12
Freeing (NOT implimented) irq 9 for ISA cards.
ahc0: aic7880 Wide Channel, SCSI Id=7, 16/255 SCBs
ahc0: target 0 Tagged Queuing Device
(ahc0:0:0): "MICROP 4110-09NB_Nov18F TN0F" type 0 fixed SCSI 2
sd0(ahc0:0:0): Direct-Access 1002MB (2053880 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
sio2 at 0x3e8-0x3ef irq 5 on isa
sio2: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
psm0 at 0x60-0x64 irq 12 on motherboard
psm0: device ID 0, 3 buttons?
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <ST3491A-XR>
wd0: 408MB (836070 sectors), 899 cyls, 15 heads, 62 S/T, 512 B/S
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:75:70:bc
npx0 on motherboard
npx0: INT 16 interface
Enabled INTs: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 19, imen: 0x00f7aa01
Start pid=2 <pagedaemon>
Start pid=3 <vmdaemon>
Start pid=4 <update>
Start pid=5 <cpuidle0>
SMP: Idle procs online, starting an AP!
SMP: AP CPU #1 LAUNCHED!! Starting Scheduling...
Start pid=6 <cpuidle1>
SMP: TADA! CPU #1 made it into the scheduler!.
SMP: All 2 CPU's are online!
pmap_enter: modified page not writable: va: 0x17000, pte: 0x847465
pmap_enter: modified page not writable: va: 0x58000, pte: 0x881465
pmap_enter: modified page not writable: va: 0x58000, pte: 0x881465
pmap_enter: modified page not writable: va: 0x59000, pte: 0x882465
pmap_enter: modified page not writable: va: 0x58000, pte: 0x881465
pmap_remove: modified page not writable: va: 0x44000, pte: 0xee0465
pmap_remove_all: modified page not writable: va: 0x43000, pte: 0xeb4465
pmap_remove: modified page not writable: va: 0x44000, pte: 0xee0465
pmap_remove_all: modified page not writable: va: 0x43000, pte: 0x1256465
pmap_enter: modified page not writable: va: 0x2c000, pte: 0x17c5465
pmap_enter: modified page not writable: va: 0x2d000, pte: 0x17c6465
pmap_enter: modified page not writable: va: 0x2f000, pte: 0x18b8465
pmap_enter: modified page not writable: va: 0x30000, pte: 0x18b9465
pmap_enter: modified page not writable: va: 0xefbfd000, pte: 0x1b07465
pmap_remove: modified page not writable: va: 0x52000, pte: 0x1d80465
pmap_enter: modified page not writable: va: 0x27000, pte: 0x199c465
pmap_enter: modified page not writable: va: 0xefbfa000, pte: 0x16c1465
pmap_remove_all: modified page not writable: va: 0xefbfd000, pte: 0x1506465
pmap_enter: modified page not writable: va: 0x35000, pte: 0xfe9465
pmap_enter: modified page not writable: va: 0x27000, pte: 0x1b74465
pmap_enter: modified page not writable: va: 0x68000, pte: 0x11d2465
-------------------------------------------------------------------------------
# SMP kernel config file options:
options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
options NCPU=2 # number of CPUs
options NBUS=2 # number of busses
options NAPIC=1 # number of IO APICs
options NINTR=21 # number of INTs
===============================================================================
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