Date: Tue, 23 Mar 1999 10:34:43 -0500 (EST) From: <seth@freebie.dp.ny.frb.org> To: FreeBSD-gnats-submit@freebsd.org, eivind@freebsd.org, des@flood.ping.uio.no Subject: kern/10752: Kernel panic (?) trap 12: page fault while in kernel mode Message-ID: <199903231534.KAA00619@freebie.dp.ny.frb.org>
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>Number: 10752
>Category: kern
>Synopsis: Kernel panic (?) trap 12: page fault while in kernel mode
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Mar 23 08:00:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: Zippy (seth@freebie.dp.ny.frb.org)
>Release: FreeBSD 3.1-RELEASE i386
>Organization:
>Environment:
Dell dual-processor Xeon 450, 384MB RAM:
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: Fri Mar 12 11:30:08 EST 1999
seth@freebie.dp.ny.frb.org:/usr/src/sys/compile/KERNEL-EF
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (686-class CPU)
Origin = "GenuineIntel" Id = 0x653 Stepping=3
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,MMX,<b24>>
real memory = 402653184 (393216K bytes)
avail memory = 388898816 (379784K bytes)
Programming 24 pins in IOAPIC #0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 1, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xf02c2000.
Probing for devices on PCI bus 0:
chip0: <Host to PCI bridge (vendor=8086 device=71a0)> rev 0x00 on pci0.0.0
chip1: <PCI to PCI bridge (vendor=8086 device=71a1)> rev 0x00 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.7.0
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.7.3
xl0: <3Com 3c905B Fast Etherlink XL 10/100BaseTX> rev 0x30 int a irq 16 on pci0.
13.0
xl0: Ethernet address: 00:10:5a:22:14:82
xl0: autoneg complete, link status good (half-duplex, 100Mbps)
xl1: <3Com 3c905B Fast Etherlink XL 10/100BaseTX> rev 0x24 int a irq 17 on pci0.
17.0
xl1: Ethernet address: 00:c0:4f:68:dc:ec
xl1: autoneg complete, link status good (half-duplex, 100Mbps)
chip4: <PCI to PCI bridge (vendor=1011 device=0024)> rev 0x03 on pci0.19.0
Probing for devices on PCI bus 1:
vga0: <VGA-compatible display device> rev 0x01 int a irq 16 on pci1.0.0
Probing for devices on PCI bus 2:
ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> rev 0x00 int a irq 18 on pci2.10.
0
ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec aic7880 Ultra SCSI adapter> rev 0x01 int a irq 18 on pci2.14.0
ahc1: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=0x0>
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
psm0 irq 12 on isa
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
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
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via pin 2
Waiting 8 seconds for SCSI devices to settle
SMP: AP CPU #1 Launched!
sa0 at ahc1 bus 0 target 6 lun 0
npx0: INT 16 interface
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via pin 2
Waiting 8 seconds for SCSI devices to settle
SMP: AP CPU #1 Launched!
sa0 at ahc1 bus 0 target 6 lun 0
sa0: <ARCHIVE Python 04106-XXX 715G> Removable Sequential Access SCSI-2 device
sa0: 10.0MB/s transfers (10.0MHz, offset 15)
da0 at ahc0 bus 0 target 0 lun 0
da0: <SEAGATE ST39102LW 0004> Fixed Direct Access SCSI-2 device
da0: 80.0MB/s transfers (40.0MHz, offset 15, 16bit), Tagged Queueing Enabled
da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
da1 at ahc0 bus 0 target 1 lun 0
da1: <SEAGATE ST39102LW 0004> Fixed Direct Access SCSI-2 device
da1: 80.0MB/s transfers (40.0MHz, offset 15, 16bit), Tagged Queueing Enabled
da1: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
changing root device to da0s1a
cd0 at ahc1 bus 0 target 5 lun 0
cd0: <NEC CD-ROM DRIVE:465 1.03> Removable CD-ROM SCSI-2 device
cd0: 20.0MB/s transfers (20.0MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present
xl1: selecting MII, 100Mbps, half duplex
xl1: selecting MII, 100Mbps, full duplex
>Description:
From the debug:
Fatal trap 12: page fault while in kernel mode
mp_lock=01000002; cpuid=1; lapic.id=01000000
fault virtual address = 0xf17642ac
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf0171d5c
stack pointer = 0x10:0xf94ffe4c
frame pointer = 0x10:0xf94ffe54
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def321, gran 1
processor eflags = interrupt enabled, resume, IOPL=0
current process = 68658 (xperfmon++)
interrupt mask = <- SMP:XXX
kernel: type 12 trap, code=0
Stopped at ufs_sysctl+0x60 : mov1 0x14 (%edx), %eax
Interesting note: system was stable for 10 days until this happened;
I was using kldload yesterday to load msdos & received this error:
Mar 22 12:05:28 freebie /kernel: module_register_init: module_register(msdos, f0
16efb8, 0xf1780a04) error 17
I've had one other panic (although I didn't get the info) about a month ago;
I suspect it was due to similar things (using kldload on msdos).
>How-To-Repeat:
will try in off-hours to repeat by kldloading msdos.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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