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Date:      Sat, 01 Dec 2007 10:24:02 -0600
From:      Eric Schuele <e.schuele@computer.org>
To:        freebsd-current@freebsd.org
Subject:   Three "random" panics in two days....
Message-ID:  <47518AA2.1030008@computer.org>

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Hello,

Sending this to current@ since afaik 7.0 has not yet been officially
released?

I've had three panics in the last two days.  Oddly enough they have all
been while I'm at the office (as opposed to home).  The only difference
being a different wireless lan.

I have attached the three backtraces.  I've no idea if they are
enlightening in any way.  I was simply hoping 1) someone might comment
and point out anything that is wrong 2) maybe these could point to
something that should be fixed before release?

iirc, one happened on boot, one on shutdown, and one while my
screensaver was up.

uname -a
FreeBSD fangorn.nxdomain.org 7.0-BETA3 FreeBSD 7.0-BETA3 #0: Thu Nov 22
11:26:35 CST 2007

If there is anything else I can provide please let me know.

Thoughts?

--=20
Regards,
Eric


--------------070803020203090206030803
Content-Type: text/plain;
 name="vmcore.0.txt"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline;
 filename="vmcore.0.txt"

root# kgdb kernel.debug /var/crash/vmcore.0
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.s=
o: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you =
are
welcome to change it and/or distribute copies of it under certain conditi=
ons.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for detail=
s.
This GDB was configured as "i386-marcel-freebsd".

Unread portion of the kernel message buffer:
Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.=

FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.0-BETA3 #0: Thu Nov 22 11:26:35 CST 2007
    me@fangorn.nxdomain.org:/usr/obj/usr/src/sys/CUSTOM7
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.66GHz (2657.83-MHz 686-class CPU)
  Origin =3D "GenuineIntel"  Id =3D 0xf29  Stepping =3D 9
  Features=3D0xbfebf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,M=
CA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=3D0x4400<CNXT-ID,xTPR>
real memory  =3D 805081088 (767 MB)
avail memory =3D 773869568 (738 MB)
kbd1 at kbdmux0
kqemu version 0x00010300
kqemu: KQEMU installed, max_locked_mem=3D386684kB.
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413=
)
acpi0: <DELL CPi R  > on motherboard
acpi0: [ITHREAD]
acpi0: reservation of 0, 9fc00 (3) failed
acpi0: reservation of 100000, 2fef0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
acpi_acad0: <AC Adapter> on acpi0
battery0: <ACPI Control Method Battery> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci_link1: BIOS IRQ 11 for 0.31.INTB is invalid
pci0: <ACPI PCI bus> on pcib0
agp0: <Intel 82845G host to AGP bridge> on hostb0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
vgapci0: <VGA-compatible display> port 0xc000-0xc0ff mem 0xe8000000-0xeff=
fffff,0xfcff0000-0xfcffffff irq 11 at device 0.0 on pci1
drm0: <ATI Radeon LW RV200 Mobility 7500 M7> on vgapci0
info: [drm] AGP at 0xe0000000 128MB
info: [drm] Initialized radeon 1.25.0 20060524
uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xbf80-0xbf9f irq=
 11 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: <Intel 82801DB (ICH4) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801DB (ICH4) USB controller USB-B> port 0xbf40-0xbf5f irq=
 11 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: <Intel 82801DB (ICH4) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801DB (ICH4) USB controller USB-C> port 0xbf20-0xbf3f irq=
 11 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2: <Intel 82801DB (ICH4) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
uhub2: 2 ports with 2 removable, self powered
ehci0: <Intel 82801DB/L/M (ICH4) USB 2.0 controller> mem 0xf4fffc00-0xf4f=
fffff irq 11 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb3: EHCI version 1.0
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
usb3: <Intel 82801DB/L/M (ICH4) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
uhub3: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb3
uhub3: 6 ports with 6 removable, self powered
pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci_link1: BIOS IRQ 11 for 2.1.INTA is invalid
pci2: <ACPI PCI bus> on pcib2
bfe0: <Broadcom BCM4401 Fast Ethernet> mem 0xfaffe000-0xfaffffff irq 9 at=
 device 1.0 on pci2
miibus0: <MII bus> on bfe0
bmtphy0: <BCM4401 10/100baseTX PHY> PHY 1 on miibus0
bmtphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
bfe0: using obsoleted if_watchdog interface
bfe0: Ethernet address: 00:0d:56:b4:f1:50
bfe0: [ITHREAD]
ath0: <Atheros 5212> mem 0xfafe0000-0xfafeffff irq 11 at device 2.0 on pc=
i2
ath0: [ITHREAD]
ath0: using obsoleted if_watchdog interface
ath0: Ethernet address: 00:0e:9b:53:31:9d
ath0: mac 5.9 phy 4.3 radio 3.6
cbb0: <TI4510 PCI-CardBus Bridge> at device 4.0 on pci2
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb0: [ITHREAD]
fwohci0: <1394 Open Host Controller Interface> mem 0xfaffd800-0xfaffdfff,=
0xfaff8000-0xfaffbfff irq 11 at device 4.1 on pci2
fwohci0: [FILTER]
fwohci0: OHCI version 1.10 (ROM=3D0)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 39:4f:c0:00:03:57:18:81
fwohci0: Phy 1394a available S400, 2 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 3a:4f:c0:57:18:81
fwe0: Ethernet address: 3a:4f:c0:57:18:81
fwip0: <IP over FireWire> on firewire0
fwip0: Firewire address: 39:4f:c0:00:03:57:18:81 @ 0xfffe00000000, S400, =
maxrec 2048
sbp0: <SBP-2/SCSI over FireWire> on firewire0
dcons_crom0: <dcons configuration ROM> on firewire0
dcons_crom0: bus_addr 0x2f0e8000
fwohci0: Initiate bus reset
fwohci0: BUS reset
fwohci0: node_id=3D0xc000ffc0, gen=3D1, CYCLEMASTER mode
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH4 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x1=
77,0x376,0xbfa0-0xbfaf at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
pcm0: <Intel ICH4 (82801DB)> port 0xb800-0xb8ff,0xbc40-0xbc7f mem 0xf4fff=
800-0xf4fff9ff,0xf4fff400-0xf4fff4ff irq 9 at device 31.5 on pci0
pcm0: [ITHREAD]
pcm0: <SigmaTel STAC9750/51 AC97 Codec>
pci0: <simple comms, generic modem> at device 31.6 (no driver attached)
acpi_tz0: <Thermal Zone> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64,0x62,0x66 irq 1 on =
acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
psm0: <PS/2 Mouse> flags 0x1000 irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: [ITHREAD]
psm0: model Generic PS/2 mouse, device ID 0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcefff,0xcf000-0xcf7ff,0xcf800-=
0xcffff pnpid ORM0000 on isa0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=3D0x300>
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 8250 or not responding
sio0: [FILTER]
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0=

Timecounter "TSC" frequency 2657829336 Hz quality 800
Timecounters tick every 1.000 msec
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding disable=
d, default to deny, logging limited to 7 packets/entry by default
firewire0: 1 nodes, maxhop <=3D 0, cable IRM =3D 0 (me)
firewire0: bus manager 0 (me)
acd0: CDRW <QSI CD-RW/DVD-ROM SBW-242/UD30> at ata0-master UDMA33
ad2: 114473MB <WDC WD1200VE-00KWT0 01.03K01> at ata1-master UDMA100
Trying to mount root from ufs:/dev/ad2s4a
<118>Loading configuration files.
<118>kernel dumps on /dev/ad2s4b
<118>Entropy harvesting:
<118> interrupts
<118> ethernet
<118> point_to_point
<118> kickstart
<118>.
<118>swapon: adding /dev/ad2s4b as swap device
<118>Starting file system checks:
<118>/dev/ad2s4a: FILE SYSTEM CLEAN; SKIPPING CHECKS
<118>/dev/ad2s4a: clean, 125641 free (1897 frags, 15468 blocks, 0.7% frag=
mentation)
<118>/dev/ad2s4e: FILE SYSTEM CLEAN; SKIPPING CHECKS
<118>/dev/ad2s4e: clean, 253792 free (24 frags, 31721 blocks, 0.0% fragme=
ntation)
<118>/dev/ad2s4f: FILE SYSTEM CLEAN; SKIPPING CHECKS
<118>/dev/ad2s4f: clean, 29894457 free (97377 frags, 3724635 blocks, 0.3%=
 fragmentation)
<118>/dev/ad2s4d: FILE SYSTEM CLEAN; SKIPPING CHECKS
<118>/dev/ad2s4d: clean, 821810 free (3138 frags, 102334 blocks, 0.4% fra=
gmentation)
<118>Setting hostuuid: 44454c4c-3100-1050-8047-b9c04f363431.
<118>Setting hostid: 0x63a7199b.
<118>Mounting local file systems:
<118>.
<118>Setting hostname: fangorn.nxdomain.org.
<118>net.inet6.ip6.auto_linklocal:=20
<118>1
<118> ->=20
<118>0
<118>
<118>debug.cpufreq.lowest:=20
<118>0
<118> ->=20
<118>1327
<118>
<118>net.inet.tcp.blackhole:=20
<118>0
<118> ->=20
<118>2
<118>
<118>net.inet.udp.blackhole:=20
<118>0
<118> ->=20
<118>1
<118>
<118>vfs.usermount:=20
<118>0
<118> ->=20
<118>1
<118>
<118>bfe0: no link ...
<118>.
<118>.
<118>.
<118>.
<118>.
<118>.
<118>.
<118>.
<118>.
<118>.
<118>.
<118> giving up
<118>Starting wpa_supplicant.
<118>DHCPREQUEST on ath0 to 255.255.255.255 port 67
<118>
<118>DHCPREQUEST on ath0 to 255.255.255.255 port 67
<118>
<118>DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 3
<118>
<118>DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 6
<118>
<118>DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 11
<118>
<118>DHCPREQUEST on ath0 to 255.255.255.255 port 67
<118>
<118>DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 6
<118>
<118>DHCPNAK from 192.168.1.1
<118>
<118>DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 5
<118>
<118>DHCPOFFER from 192.168.1.1
<118>
<118>DHCPREQUEST on ath0 to 255.255.255.255 port 67
<118>
<118>DHCPACK from 192.168.1.1
<118>


Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address   =3D 0x8
fault code              =3D supervisor read, page not present
instruction pointer     =3D 0x20:0xc07f111e
stack pointer           =3D 0x28:0xdf928a78
frame pointer           =3D 0x28:0xdf928a7c
code segment            =3D base 0x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, def32 1, gran 1
processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
current process         =3D 398 (ifconfig)
trap number             =3D 12
panic: page fault
cpuid =3D 0
Uptime: 56s
Physical memory: 755 MB
Dumping 44 MB: 29 13

#0  doadump () at pcpu.h:195
195             __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0754282 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c=
:409
#2  0xc075453d in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a0c960 in trap_fatal (frame=3D0xdf928a38, eva=3D8)
    at /usr/src/sys/i386/i386/trap.c:872
#4  0xc0a0cbd0 in trap_pfault (frame=3D0xdf928a38, usermode=3D0, eva=3D8)=

    at /usr/src/sys/i386/i386/trap.c:785
#5  0xc0a0d511 in trap (frame=3D0xdf928a38) at /usr/src/sys/i386/i386/tra=
p.c:463
#6  0xc09f489b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc07f111e in rn_search (v_arg=3D0x0, head=3D0x0)
    at /usr/src/sys/net/radix.c:159
#8  0xc07f1b4a in rn_addmask (n_arg=3D0xc3e98bd8, search=3D1, skip=3DVari=
able "skip" is not available.
)
    at /usr/src/sys/net/radix.c:517
#9  0xc07f2310 in rn_lookup (v_arg=3D0xc3dae418, m_arg=3D0xc3e98bd8,=20
    head=3D0xc3c9d500) at /usr/src/sys/net/radix.c:222
#10 0xc07f4da5 in rtinit (ifa=3D0xc3e98b00, cmd=3D2, flags=3D0)
    at /usr/src/sys/net/route.c:1194
#11 0xc081b1a1 in in_ifscrub (ifp=3D0xc3b7d800, ia=3D0xc3e98b00)
    at /usr/src/sys/netinet/in.c:916
#12 0xc081c7ef in in_control (so=3D0xc3eaaad4, cmd=3D2149607705,=20
    data=3D0xc3e9d380 "ath0", ifp=3D0xc3b7d800, td=3D0xc3c99440)
    at /usr/src/sys/netinet/in.c:467
#13 0xc07e3643 in ifioctl (so=3D0xc3eaaad4, cmd=3D2149607705,=20
    data=3D0xc3e9d380 "ath0", td=3D0xc3c99440) at /usr/src/sys/net/if.c:1=
888
#14 0xc078c881 in soo_ioctl (fp=3D0xc3e1c4c8, cmd=3D2149607705, data=3D0x=
c3e9d380,=20
    active_cred=3D0xc39fad00, td=3D0xc3c99440)
    at /usr/src/sys/kern/sys_socket.c:191
#15 0xc0785ae5 in kern_ioctl (td=3D0xc3c99440, fd=3D3, com=3D2149607705, =

    data=3D0xc3e9d380 "ath0") at file.h:266
#16 0xc0785c2a in ioctl (td=3D0xc3c99440, uap=3D0xdf928cfc)
    at /usr/src/sys/kern/sys_generic.c:570
#17 0xc0a0cf18 in syscall (frame=3D0xdf928d38)
    at /usr/src/sys/i386/i386/trap.c:1008
#18 0xc09f4900 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception=
=2Es:196
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)


--------------070803020203090206030803
Content-Type: text/plain;
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Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline;
 filename="vmcore.1.txt"

root# kgdb kernel.debug /var/crash/vmcore.1
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.s=
o: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you =
are
welcome to change it and/or distribute copies of it under certain conditi=
ons.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for detail=
s.
This GDB was configured as "i386-marcel-freebsd".

Unread portion of the kernel message buffer:
panic: clist reservation botch
cpuid =3D 0
Uptime: 8h19m57s
Physical memory: 755 MB
Dumping 119 MB: 104 88 72 56 40 24 8

#0  doadump () at pcpu.h:195
195             __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
(kgdb) list
190     static __inline struct thread *
191     __curthread(void)
192     {
193             struct thread *td;
194    =20
195             __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
196             return (td);
197     }
198     #define curthread               (__curthread())
199    =20
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0754282 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c=
:409
#2  0xc075453d in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc079b2b7 in cblock_free_cblocks (number=3D22)
    at /usr/src/sys/kern/tty_subr.c:104
#4  0xc079b313 in clist_free_cblocks (clistp=3D0xc3cce038)
    at /usr/src/sys/kern/tty_subr.c:209
#5  0xc0793d9a in tty_close (tp=3D0xc3cce000) at /usr/src/sys/kern/tty.c:=
328
#6  0xc068592e in scclose (dev=3D0xc3cd0200, flag=3D7, mode=3D8192, td=3D=
0xc3f63880)
    at /usr/src/sys/dev/syscons/syscons.c:585
#7  0xc0723287 in giant_close (dev=3D0xc3cd0200, fflag=3D7, devtype=3D819=
2,=20
    td=3D0xc3f63880) at /usr/src/sys/kern/kern_conf.c:327
#8  0xc06eea52 in devfs_close (ap=3D0xdd758b34)
    at /usr/src/sys/fs/devfs/devfs_vnops.c:372
#9  0xc0a20272 in VOP_CLOSE_APV (vop=3D0xc0b3da20, a=3D0xdd758b34)
    at vnode_if.c:424
#10 0xc07d7a32 in vn_close (vp=3D0xc403f550, flags=3D7, file_cred=3D0xc40=
41a00,=20
    td=3D0xc3f63880) at vnode_if.h:228
#11 0xc07d7b56 in vn_closefile (fp=3D0xc3e1d5a0, td=3D0xc3f63880)
    at /usr/src/sys/kern/vfs_vnops.c:868
#12 0xc06edd32 in devfs_close_f (fp=3D0xc3e1d5a0, td=3D0xc3f63880)
    at /usr/src/sys/fs/devfs/devfs_vnops.c:384
#13 0xc07268b8 in fdrop (fp=3D0xc3e1d5a0, td=3D0xc3f63880) at file.h:297
#14 0xc0727f88 in closef (fp=3D0xc3e1d5a0, td=3D0xc3f63880)
    at /usr/src/sys/kern/kern_descrip.c:1958
#15 0xc072846a in kern_close (td=3D0xc3f63880, fd=3D4)
    at /usr/src/sys/kern/kern_descrip.c:1054
#16 0xc0728537 in close (td=3D0xc3f63880, uap=3D0xdd758cfc)
    at /usr/src/sys/kern/kern_descrip.c:1006
#17 0xc0a0cf18 in syscall (frame=3D0xdd758d38)
    at /usr/src/sys/i386/i386/trap.c:1008
#18 0xc09f4900 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception=
=2Es:196
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb)=20


--------------070803020203090206030803
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root# kgdb kernel.debug /var/crash/vmcore.2
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.s=
o: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you =
are
welcome to change it and/or distribute copies of it under certain conditi=
ons.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for detail=
s.
This GDB was configured as "i386-marcel-freebsd".

Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address   =3D 0x78300088
fault code              =3D supervisor read, page not present
instruction pointer     =3D 0x20:0xc093f982
stack pointer           =3D 0x28:0xdf778a88
frame pointer           =3D 0x28:0xdf778b80
code segment            =3D base 0x0, limit 0xfffff, type 0x1b
                        =3D DPL 0, pres 1, def32 1, gran 1
processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
current process         =3D 45 (syncer)
trap number             =3D 12
panic: page fault
cpuid =3D 0
Uptime: 51m36s
Physical memory: 755 MB
Dumping 117 MB: 102 86 70 54 38 22 6

#0  doadump () at pcpu.h:195
195             __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
(kgdb) list
190     static __inline struct thread *
191     __curthread(void)
192     {
193             struct thread *td;
194    =20
195             __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
196             return (td);
197     }
198     #define curthread               (__curthread())
199    =20
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0754282 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c=
:409
#2  0xc075453d in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a0c960 in trap_fatal (frame=3D0xdf778a48, eva=3D2016411784)
    at /usr/src/sys/i386/i386/trap.c:872
#4  0xc0a0cbd0 in trap_pfault (frame=3D0xdf778a48, usermode=3D0, eva=3D20=
16411784)
    at /usr/src/sys/i386/i386/trap.c:785
#5  0xc0a0d511 in trap (frame=3D0xdf778a48) at /usr/src/sys/i386/i386/tra=
p.c:463
#6  0xc09f489b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc093f982 in softdep_disk_io_initiation (bp=3D0xd31b4494)
    at /usr/src/sys/ufs/ffs/ffs_softdep.c:3844
#8  0xc0945efc in ffs_geom_strategy (bo=3D0xc3e40c70, bp=3D0xd31b4494) at=
 buf.h:436
#9  0xc07b802f in bufwrite (bp=3D0xd31b4494) at buf.h:429
#10 0xc0945409 in ffs_bufwrite (bp=3D0xd31b4494)
    at /usr/src/sys/ufs/ffs/ffs_vfsops.c:1803
#11 0xc07b1f90 in vfs_bio_awrite (bp=3D0xd31b4494) at buf.h:417
#12 0xc07bc34c in vop_stdfsync (ap=3D0xdf778cd4)
    at /usr/src/sys/kern/vfs_default.c:437
#13 0xc06eddd2 in devfs_fsync (ap=3D0xdf778cd4)
    at /usr/src/sys/fs/devfs/devfs_vnops.c:394
#14 0xc0a206f2 in VOP_FSYNC_APV (vop=3D0xc0b3da20, a=3D0xdf778cd4)
    at vnode_if.c:1007
#15 0xc07cb62e in sched_sync () at vnode_if.h:538
---Type <return> to continue, or q <return> to quit---
#16 0xc0735e81 in fork_exit (callout=3D0xc07cb1a5 <sched_sync>, arg=3D0x0=
,=20
    frame=3D0xdf778d38) at /usr/src/sys/kern/kern_fork.c:754
#17 0xc09f4910 in fork_trampoline () at /usr/src/sys/i386/i386/exception.=
s:205
(kgdb)=20


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