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Date:      Mon, 8 Mar 1999 10:48:27 +0000 (GMT)
From:      Mark Powell <M.S.Powell@ais.salford.ac.uk>
To:        freebsd-stable@freebsd.org
Cc:        freebsd-hardware@freebsd.org
Subject:   3.1-R panic
Message-ID:  <Pine.BSF.4.05.9903081039180.33701-100000@plato.salford.ac.uk>

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I need some help determining why a machine is panicing. Specifically,
whether it's FreeBSD or the hardware that's causing it. I really want to
bring in FreeBSD as the OS of choice to provide our core services, but
this is really hurting my cause.
  When I first installed 3.1 on the machine (an Apricot Shogun), I left
the box in a continuous loop doing "make world" for a couple of days. No
problem. I assumed the hardware was good. It'd also been previously
running NT 3.51 for well over 2 years. However, now it's running inn-2.2
(CNFS with mmapped files), the box keeps panicing (every day or so), with
a page fault. It always does this at exactly the same place in the kernel.
The gdb -k output is:

------
IdlePTD 2551808
initial pcb at 2134a4
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0xc
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xf016f1af
stack pointer           = 0x10:0xf76bcf48
frame pointer           = 0x10:0xf7781c38
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         = 2 (pagedaemon)
interrupt mask          = 
trap number             = 12
panic: page fault

syncing disks... 84 39 29 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24
24 giving up

dumping to dev 20401, offset 1277180
dump 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74
73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 
---
#0  boot (howto=Cannot access memory at address 0x2c.
) at ../../kern/kern_shutdown.c:285
285                     dumppcb.pcb_cr3 = rcr3();
-----

The dmesg output:

-----
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California. All rights reserved.
FreeBSD 3.1-RELEASE #0: Mon Mar  1 17:27:17 GMT 1999
    root@mimas.salford.ac.uk:/usr/src/sys/compile/INN
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 130669405 Hz
CPU: Pentium/P54C (130.67-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x525  Stepping=5
  Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
real memory  = 100663296 (98304K bytes)
avail memory = 95133696 (92904K bytes)
Preloaded elf kernel "kernel" at 0xf0265000.
Probing for devices on PCI bus 0:
chip0: <Intel 824?? host to PCI bridge> rev 0x02 on pci0.0.0
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x04 int a irq 11 on pci0.12.0
fxp0: Ethernet address 00:a0:c9:a4:3a:f2
chip1: <Intel 82375EB PCI-EISA bridge> rev 0x05 on pci0.14.0
Probing for devices on PCI bus 1:
chip3: <Intel 824?? host to PCI bridge> rev 0x02 on pci1.0.0
dpt0: <DPT Caching SCSI RAID Controller> rev 0x02 int a irq 10 on pci1.15.0
dpt0: DPT PM3224A/9X-R  W FW Rev. 07CH, 3 channels, 64 CCBs
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 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
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
ppc0 at 0x378 irq 7 on isa
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
nlpt0: <generic printer> on ppbus 0
nlpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
plip0: <PLIP network interface> on ppbus 0
npx0 on motherboard
npx0: INT 16 interface
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
Intel Pentium detected, installing workaround for F00F bug
sa0 at dpt0 bus 0 target 2 lun 0
sa0: <Quantum DLT4000 CA19> Removable Sequential Access SCSI-2 device 
da0 at dpt0 bus 0 target 0 lun 0
da0: <IBM OEM DFHSS4S 4141> Fixed Direct Access SCSI-2 device 
da0: Tagged Queueing Enabled
da0: 4119MB (8436988 512 byte sectors: 255H 63S/T 525C)
da1 at dpt0 bus 0 target 1 lun 0
da1: <DPT RAID-0 7CH> Fixed Direct Access SCSI-2 device 
da1: 20597MB (42183680 512 byte sectors: 255H 63S/T 2625C)
changing root device to da0s1a
cd0 at dpt0 bus 0 target 5 lun 0
cd0: <SONY CD-ROM CDU-76S 1.1a> Removable CD-ROM SCSI-2 device 
cd0: Attempt to query device size failed: NOT READY, Medium not present
WARNING: / was not properly dismounted
ffs_mountfs: superblock updated for soft updates
ffs_mountfs: superblock updated for soft updates
-----

The kernel config file:

-----
machine		"i386"
cpu		"I586_CPU"
cpu		"I686_CPU"
ident		INN
maxusers	128
options         "NMBCLUSTERS=8192"
options		INET			
options		FFS			
options		FFS_ROOT		
options         "SOFTUPDATES"
options         "AUTO_EOI_1"
options		"COMPAT_43"		
options         SCSI_REPORT_GEOMETRY
options		SCSI_DELAY=0	
options		UCONSOLE		
options		FAILSAFE		
options         "INCLUDE_CONFIG_FILE"
options         DDB
options         DDB_UNATTENDED
config		kernel	root on da0
controller	isa0
controller	pci0
controller	fdc0	at isa? port "IO_FD1" bio irq 6 drq 2
disk		fd0	at fdc0 drive 0
controller      dpt0
options DPT_ALLOW_MEMIO
controller	scbus0
device		da0
device		sa0
device		pass0
device		cd0	
device		npx0	at isa? port IO_NPX irq 13
device		sio0	at isa? port "IO_COM1" flags 0x10 tty irq 4
device		sio1	at isa? port "IO_COM2" tty irq 3
device		sio2	at isa? disable port "IO_COM3" tty irq 5
device		sio3	at isa? disable port "IO_COM4" tty irq 9
controller      atkbdc0 at isa? port IO_KBD tty
device          atkbd0  at isa? tty irq 1
device          vga0    at isa? port ? conflicts
device          sc0     at isa? tty
pseudo-device   splash
device fxp0
# Parallel port
device          ppc0    at isa? port? net irq 7
controller      ppbus0
device          nlpt0   at ppbus?
device          plip0   at ppbus?
device          ppi0    at ppbus?
#controller     vpo0    at ppbus?
pseudo-device	loop
pseudo-device	ether
pseudo-device	pty	16
pseudo-device   speaker         
pseudo-device   vn      1       
pseudo-device   snp     2       
options		KTRACE		
pseudo-device	bpfilter 2	
options         SYSVSHM
options         SYSVSEM
options         SYSVMSG
options         "MD5"
options         "ICMP_BANDLIM"
-----

Mark Powell - System Administrator (UNIX) - Clifford Whitworth Building
A.I.S., University of Salford, Salford, Manchester, UK.
Tel: +44 161 295 5936  Fax: +44 161 295 5888  www.pgp.com for PGP key
M.S.Powell@ais.salfrd.ac.uk (spell salford correctly to reply to me)



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