Date: Wed, 10 Mar 1999 14:08:40 +0000 From: Thierry.Besancon@lps.ens.fr (Thierry Besancon) To: freebsd-smp@freebsd.org, dwhite@gdi.uoregon.edu Cc: besancon@lps.ens.fr, Pierre.David@prism.uvsq.fr, jt@ratp.fr Subject: lockmgr() panic Message-ID: <199903101308.NAA24194@excalibur.lps.ens.fr>
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Hello
I have in production a ASUS P2B machine with dual 350 MHz PII
(with Intel 440BX chip ?) and 512 Mb of ram.
It runs FreeBSD 3.1
It paniced last week so I compiled in DDB in order to have more
information. Today it paniced again, with the following messages :
Fatal trap 12: page fault while in kernel mode
mp_lock = 010000002; cpuid = 1; lapic.id = 00000000
fault virtual address = 0xb8
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf01430a7
stack pointer = 0x10:0xff804eb4
frame pointer = 0x10:0xff804ec8
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 = Idle
interrupt mask = net tty bio cam <- SMP : XXX
kernel: type 12 trap, code=0
Stopped at tsleep+0x1b: movl 0xb8(%ebx),%eax
The "trace" command gave :
db> trace
tsleep(f027bab4,4,f023b455,0,f027bab4) at tsleep+0x1b
acquire(f027bab4,1000000,600,f027bab4,c6040000) at acquire+0x91
lockmgr(f027bab4,2,0,0,1) at lockmgr+0x260
kmem_malloc(f027bab4,1000,1,f113f300,ff804f88) at kmem_malloc+0x51
m_clalloc(1,1) ar m_clalloc+0x2e
fxp_add_rfabuf(f1762e00,f11e9980) at fxp_add_rfabuf+0xa5
fxp_intr(f1762e00,0,f0250010,10,0) at fxp_intr+0xe1
Xresume18() at Xresume18+0x51
--- interrupt, eip = 0xf020dfe0, esp = 0xff804ff0, ebp = 0 ---
default_halt() at default_halt
(I rebooted with a new kernel with Alan Cox's path about "update_needed" in
src/sys/i386/i386/pmap.c,v just in case it might help but i don't have any
idea whether this patch relates to my bug)
My machine doesn't panic when running this piece of C code found in the
mailing list :
#include <sys/param.h>
#include <sys/mman.h>
#include <err.h>
#include <stdlib.h>
#define SIZE (32 * 1024 * 1024)
int
main(void)
{
void *p;
char vec[SIZE / PAGE_SIZE];
p = malloc(SIZE);
if (mincore(p, SIZE, vec) != 0)
err(1, "mincore");
return (0);
}
While typing this mail, my machine paniced again with a more explicit message ?
panic: lockmgr: locking against myself
mp_lock = 010000003 ; cpuid = 1; lapic.id = 00000000
Debugger("panic")
Stopped at Debugger+0x37: movl $0,in_Debugger
db> trace
Debugger(f0230f52) at Debugger+0x37
panic() at panic+0xa4
lockmgr() at lockmgr+0x228
vm_map_growstack() at vm_map_growstack+0x29
grow_stack() at grow_stack+0xe
trap_pfault() at trap+0x33e
calltap() at calltrap+0x3c
--- trap 0xc, eip = 0xf020c3a3, esp = 0xfa7f6d6c, ebp = 0xfa7f6d84 ---
pmap_enter() at pmap_enter+0xa7
vm_fault() at vm_fault+0x83a
trap_pfault() at trap_pfault+0xc4
trap() at trap+0x33e
calltrap() at calltrap+0x3c
--- trap 0xc, eip = ..., esp = ..., ebp = ... ---
zalloci() at zalloci+0x33
vm_map_entry_create() at vm_map_entry_create+0x27
_vm_map_clip_end() at _vm_map_clip_end+0x42
vm_map_madvise() at vm_map_madvise+0xc9
madvise() at madvise+0x47
syscall(27,27,2c,2811c000,efbfb9ec) at syscall+0x187
Xint0x80_syscall() at Xint0x80_syscall+0x4c
So, does anybody have an idea about why my problem occurs ?
Any fix ?
Thanks in advance.
A special thanks for all the people that made FreeBSD runnable on SMP.
Thierry
********************************************************************************
********************************************************************************
ps 1 : here's my "mptable" output
===============================================================================
MPTable, version 2.0.15
-------------------------------------------------------------------------------
MP Floating Pointer Structure:
location: BIOS
physical address: 0x000f6df0
signature: '_MP_'
length: 16 bytes
version: 1.1
checksum: 0x3f
mode: Virtual Wire
-------------------------------------------------------------------------------
MP Config Table Header:
physical address: 0x000f69ec
signature: 'PCMP'
base table length: 252
version: 1.1
checksum: 0x5c
OEM ID: 'OEM00000'
Product ID: 'PROD00000000'
OEM table pointer: 0x00000000
OEM table size: 0
entry count: 23
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
1 0x11 BSP, usable 6 5 2 0x183fbff
0 0x11 AP, usable 6 5 2 0x183fbff
--
Bus: Bus ID Type
0 PCI
1 PCI
2 ISA
--
I/O APICs: APIC ID Version State Address
2 0x11 usable 0xfec00000
--
I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
ExtINT conforms conforms 2 0 2 0
INT conforms conforms 2 1 2 1
INT conforms conforms 2 0 2 2
INT conforms conforms 2 3 2 3
INT conforms conforms 2 4 2 4
INT conforms conforms 2 5 2 5
INT conforms conforms 2 6 2 6
INT conforms conforms 2 7 2 7
INT conforms conforms 2 8 2 8
INT conforms conforms 2 9 2 9
INT conforms conforms 2 14 2 14
INT conforms conforms 2 15 2 15
INT active-lo level 2 11 2 16
INT active-lo level 2 10 2 18
INT active-lo level 2 12 2 19
--
Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
ExtINT active-hi edge 2 0 255 0
NMI active-hi edge 2 0 255 1
-------------------------------------------------------------------------------
# SMP kernel config file options:
# Required:
options SMP # Symmetric MultiProcessor Kernel
options APIC_IO # Symmetric (APIC) I/O
# Optional (built-in defaults will work in most cases):
#options NCPU=2 # number of CPUs
#options NBUS=3 # number of busses
#options NAPIC=1 # number of IO APICs
#options NINTR=24 # number of INTs
===============================================================================
********************************************************************************
********************************************************************************
ps 2 : here's my 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 #5: Wed Mar 10 13:12:39 CET 1999
besancon@tournesol.lps.ens.fr:/usr/src/sys/compile/TOURNESOL
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping=2
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,<b24>>
real memory = 536870912 (524288K bytes)
avail memory = 519774208 (507592K bytes)
Programming 24 pins in IOAPIC #0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 1, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 0, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xf02d7000.
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x02 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x02 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.4.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.4.1
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.4.3
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x02 int a irq 18 on pci0.10.0
fxp0: Ethernet address 00:a0:c9:43:9d:99
ncr0: <ncr 53c875 fast20 wide scsi> rev 0x26 int a irq 16 on pci0.12.0
Probing for devices on PCI bus 1:
vga0: <ATI model 4742 graphics accelerator> rev 0x5c int a irq 16 on pci1.0.0
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 not found
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <ST32122A>
wd0: 2014MB (4124736 sectors), 4092 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (atapi): <CD-ROM CDU701/1.0q>, removable, accel, dma, iordis
acd0: drive speed 2412KB/sec, 128KB cache
acd0: supported read types: CD-R, CD-RW, CD-DA, packet track
acd0: Audio: play, 256 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: no/blank disc inside, unlocked
scd0 not found at 0x230
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
SMP: AP CPU #1 Launched!
changing root device to da0s1a
da0 at ncr0 bus 0 target 0 lun 0
da0: <QUANTUM VIKING II 4.5WLS 4110> Fixed Direct Access SCSI-2 device
da0: 40.0MB/s transfers (20.0MHz, offset 16, 16bit), Tagged Queueing Enabled
da0: 4350MB (8910423 512 byte sectors: 255H 63S/T 554C)
********************************************************************************
********************************************************************************
ps 3 : here's my kernel config file :
machine "i386"
cpu "I686_CPU"
ident TOURNESOL-SMP
maxusers 128
options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options MFS #Memory Filesystem
options MFS_ROOT #MFS usable as root device, "MFS" req'ed
options NFS #Network Filesystem
options NFS_ROOT #NFS usable as root device, "NFS" req'ed
options MSDOSFS #MSDOS Filesystem
options "CD9660" #ISO 9660 Filesystem
options "CD9660_ROOT" #CD-ROM usable as root. "CD9660" req'ed
options PROCFS #Process filesystem
options "COMPAT_43" #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=1500 #Be pessimistic about Joe SCSI device
options UCONSOLE #Allow users to grab the console
options FAILSAFE #Be conservative
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
config kernel root on wd0
# To make an SMP kernel, the next two are needed
options SMP # Symmetric MultiProcessor Kernel
options APIC_IO # Symmetric (APIC) I/O
controller isa0
controller eisa0
controller pci0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2
disk fd0 at fdc0 drive 0
options "CMD640" # work around CMD640 chip deficiency
controller wdc0 at isa? port "IO_WD1" bio irq 14
disk wd0 at wdc0 drive 0
disk wd1 at wdc0 drive 1
controller wdc1 at isa? port "IO_WD2" bio irq 15
disk wd2 at wdc1 drive 0
disk wd3 at wdc1 drive 1
#
# ATAPI enables the support for ATAPI-compatible IDE devices
#
options ATAPI #Enable ATAPI support for IDE bus
options ATAPI_STATIC #Don't do it as an LKM
#
# This option allow you to override the default probe time for IDE
# devices, to get a faster probe. Setting this below 10000 violate
# the IDE specs, but may still work for you (it will work for most
# people).
#
options IDE_DELAY=8000 # Be optimistic about Joe IDE device
# IDE CD-ROM & CD-R/RW driver - requires wdc controller and ATAPI option
device acd0
device da0 #SCSI direct access devices (aka disks)
device sa0 #SCSI tapes
device pass0 #CAM passthrough driver
device cd0 #SCSI CD-ROMs
device ch0 #SCSI media changers
device scd0 at isa? port 0x230 bio
# atkbdc0 controlls both the keyboard and the PS/2 mouse
controller atkbdc0 at isa? port IO_KBD tty
device atkbd0 at isa? tty irq 1
device psm0 at isa? tty irq 12
device vga0 at isa? port ? conflicts
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? tty
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device vt0 at isa? tty
#options XSERVER # support for X server
#options FAT_CURSOR # start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
#options PCVT_SCANSET=2 # IBM keyboards are non-std
#
# The Numeric Processing eXtension driver. This should be configured if
# your machine has a math co-processor, unless the coprocessor is very
# buggy. If it is not configured then you *must* configure math emulation
# (see above). If both npx0 and emulation are configured, then only npx0
# is used (provided it works).
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
## 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?
# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.
device de0
device fxp0
pseudo-device loop
pseudo-device ether
pseudo-device pty 256
# Enable the kernel debugger.
options DDB
#options DDB_UNATTENDED
# KTRACE enables the system-call tracing facility ktrace(2).
# This adds 4 KB bloat to your kernel, and slightly increases
# the costs of each syscall.
options KTRACE #kernel tracing
# This provides support for System V shared memory and message queues.
#
options SYSVSHM
options SYSVMSG
options SYSVSEM
# The `bpfilter' pseudo-device enables the Berkeley Packet Filter. Be
# aware of the legal and administrative consequences of enabling this
# option. The number of devices determines the maximum number of
# simultaneous BPF clients programs runnable.
#pseudo-device bpfilter 4 #Berkeley packet filter
#####################################################################
options NETATALK #Appletalk communications protocols
controller ncr0
controller scbus0 at ncr0
disk da0 at scbus0 target 0
disk da1 at scbus0 target 1
disk da2 at scbus0 target 2
disk da3 at scbus0 target 3
disk da4 at scbus0 target 4
disk da5 at scbus0 target 5
disk da6 at scbus0 target 6
options SCSI_REPORT_GEOMETRY
options "MD5"
options "ICMP_BANDLIM"
#
# This allows you to actually store this configuration file into
# the kernel binary itself, where it may be later read by saying:
# strings -aout -n 3 /kernel | grep ^___ | sed -e 's/^___//' > MYKERNEL
#
options INCLUDE_CONFIG_FILE # Include this file in kernel
#
# If you want to disable loadable kernel modules (LKM), you
# might want to use this option.
#
#options NO_LKM
#
# Disable swapping. This option removes all code which actually performs
# swapping, so it's not possible to turn it back on at run-time.
#
# This is sometimes usable for systems which don't have any swap space
# (see also sysctls "vm.defer_swapspace_pageouts" and
# "vm.disable_swapspace_pageouts")
#
#options NO_SWAPPING
#pseudo-device vn #Vnode driver (turns a file into a device)
pseudo-device snp 3 #Snoop device - to look at pty/vty/etc..
#pseudo-device ppp 1
#pseudo-device tun 1
#pseudo-device gzip # Exec gzipped a.out's
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