The following reply was made to PR kern/121298; it has been noted by GNATS.
From: Szymon Roczniak <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Cc:
Subject: Re: kern/121298: [em] [panic] Fatal trap 12: page fault while in
kernel mode (em0 taskq)
Date: Wed, 9 Apr 2008 17:49:00 +0100
A similar problem here (well, at least two out of three kernel dumps look a
bit similar). The hardware is a dell PE2850, running GENERIC (only file name
is different) FreeBSD 7-STABLE as of yesterday (8.04.2008). It's a web/mail
server and it's not under heavy load.
server# dmesg=0D
Copyright (c) 1992-2008 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-STABLE #2: Tue Apr 8 12:04:29 BST 2008
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/VALIUM
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.01-MHz 686-class CPU)
Origin =3D "GenuineIntel" Id =3D 0xf41 Stepping =3D 1
Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=3D0x641d<SSE3,RSVD2,MON,DS_CPL,CNXT-ID,CX16,xTPR>
AMD Features=3D0x20000000<LM>
real memory =3D 2147221504 (2047 MB)
avail memory =3D 2091679744 (1994 MB)
ACPI APIC Table: <DELL PE BKC >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 6
ioapic0: Changing APIC ID to 7
ioapic1: Changing APIC ID to 8
ioapic2: Changing APIC ID to 9
ioapic3: Changing APIC ID to 10
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 32-55 on motherboard
ioapic2 <Version 2.0> irqs 64-87 on motherboard
ioapic3 <Version 2.0> irqs 96-119 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <DELL PE BKC> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acp=
i0
Timecounter "HPET" frequency 14318180 Hz quality 900
cpu0: <ACPI CPU> on acpi0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
p4tcc1: <CPU Frequency Thermal Control> on cpu1
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 0.0 on pci1
pci2: <ACPI PCI bus> on pcib2
amr0: <LSILogic MegaRAID 1.53> mem 0xd80f0000-0xd80fffff,0xdfdc0000-0xdfdff=
fff irq 46 at device 14.0 on pci2
amr0: [ITHREAD]
amr0: delete logical drives supported by controller
amr0: <LSILogic PERC 4e/Di> Firmware 513O, BIOS H418, 256MB RAM
pcib3: <ACPI PCI-PCI bridge> at device 0.2 on pci1
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 4.0 on pci0
pci4: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> at device 5.0 on pci0
pci5: <ACPI PCI bus> on pcib5
pcib6: <ACPI PCI-PCI bridge> at device 0.0 on pci5
pci6: <ACPI PCI bus> on pcib6
em0: <Intel(R) PRO/1000 Network Connection Version - 6.7.3> port 0xecc0-0xe=
cff mem 0xdfae0000-0xdfafffff irq 64 at device 7.0 on pci6
em0: Ethernet address: 00:11:43:36:f3:3c
em0: [FILTER]
pcib7: <ACPI PCI-PCI bridge> at device 0.2 on pci5
pci7: <ACPI PCI bus> on pcib7
em1: <Intel(R) PRO/1000 Network Connection Version - 6.7.3> port 0xdcc0-0xd=
cff mem 0xdf8e0000-0xdf8fffff irq 65 at device 8.0 on pci7
em1: Ethernet address: 00:11:43:36:f3:3d
em1: [FILTER]
pcib8: <ACPI PCI-PCI bridge> at device 6.0 on pci0
pci8: <ACPI PCI bus> on pcib8
pcib9: <ACPI PCI-PCI bridge> at device 0.0 on pci8
pci9: <ACPI PCI bus> on pcib9
pcib10: <ACPI PCI-PCI bridge> at device 0.2 on pci8
pci10: <ACPI PCI bus> on pcib10
uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0xbce0-0xbcff irq 1=
6 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: <Intel 82801EB (ICH5) 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 82801EB (ICH5) USB controller USB-B> port 0xbcc0-0xbcdf irq 1=
9 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: <Intel 82801EB (ICH5) 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 82801EB (ICH5) USB controller USB-C> port 0xbca0-0xbcbf irq 1=
8 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2: <Intel 82801EB (ICH5) 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 82801EB/R (ICH5) USB 2.0 controller> mem 0xdff00000-0xdff003f=
f irq 23 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 82801EB/R (ICH5) 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
uhub4: <vendor 0x413c product 0xa001, class 9/0, rev 2.00/0.00, addr 2> on =
uhub3
uhub4: multiple transaction translators
uhub4: 2 ports with 2 removable, self powered
pcib11: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci11: <ACPI PCI bus> on pcib11
vgapci0: <VGA-compatible display> port 0xcc00-0xccff mem 0xd0000000-0xd7fff=
fff,0xdf4f0000-0xdf4fffff irq 18 at device 13.0 on pci11
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH5 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177=
,0x376,0xfc00-0xfc0f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FILTER]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acp=
i0
sio0: type 16550A
sio0: [FILTER]
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcafff,0xcb000-0xcbfff,0xce800-0x=
cf7ff,0xec000-0xeffff pnpid ORM0000 on isa0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=3D0x300>
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
Timecounters tick every 1.000 msec
acd0: CDROM <TEAC CD-ROM CD-224E/K.9A> at ata0-master UDMA33
amr0: delete logical drives supported by controller
amrd0: <LSILogic MegaRAID logical drive> on amr0
amrd0: 34680MB (71024640 sectors) RAID 1 (optimal)
SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/amrd0s1a
WARNING: / was not properly dismounted
/: mount pending error: blocks 204 files 14
pid 3380 (httpd), uid 65534: exited on signal 11
server# kgdb /boot/kernel/kernel vm=07=0D
vmcore.0 vmcore.1 vmcore.2 =0D
server# kgdb /boot/kernel/kernel vmcore.0=0D
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:=
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 condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
There is no member named pathname.
Reading symbols from /boot/kernel/acpi.ko...Reading symbols from /boot/kern=
el/acpi.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/acpi.ko
Reading symbols from /boot/kernel/fdescfs.ko...Reading symbols from /boot/k=
ernel/fdescfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/fdescfs.ko
Reading symbols from /boot/kernel/pflog.ko...Reading symbols from /boot/ker=
nel/pflog.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pflog.ko
Reading symbols from /boot/kernel/pf.ko...Reading symbols from /boot/kernel=
/pf.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pf.ko
Unread portion of the kernel message buffer:
<6>pid 49337 (megarc), uid 0: exited on signal 11
TPTE at 0xbfc20120 IS ZERO @ VA 08048000
panic: bad pte
cpuid =3D 1
Uptime: 7h21m35s
Physical memory: 2035 MB
Dumping 275 MB: 260 244 228 212 196 180 164 148 132 116 100 84 68 52 36 20 4
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc075b1a7 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:4=
18
#2 0xc075b469 in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:572
#3 0xc0a509e6 in pmap_remove_pages (pmap=3D0xc6579a84) at /usr/src/sys/i38=
6/i386/pmap.c:3093
#4 0xc097e07c in vmspace_exit (td=3D0xc63dc000) at /usr/src/sys/vm/vm_map.=
c:404
#5 0xc0739c3a in exit1 (td=3D0xc63dc000, rv=3D11) at /usr/src/sys/kern/ker=
n_exit.c:294
#6 0xc075d633 in sigexit (td=3DVariable "td" is not available.
) at /usr/src/sys/kern/kern_sig.c:2877
#7 0xc075e8be in postsig (sig=3D11) at /usr/src/sys/kern/kern_sig.c:2749
#8 0xc078cd28 in ast (framep=3D0xe7d82d38) at /usr/src/sys/kern/subr_trap.=
c:250
#9 0xc0a3c3fd in doreti_ast () at /usr/src/sys/i386/i386/exception.s:290
#10 0xe7d82d38 in ?? ()
#11 0x0000003b in ?? ()
#12 0x0000003b in ?? ()
#13 0x0000003b in ?? ()
#14 0xbfbfe834 in ?? ()
#15 0xbfbfe850 in ?? ()
#16 0xbfbfe2e8 in ?? ()
#17 0xe7d82d64 in ?? ()
#18 0x00000006 in ?? ()
#19 0x00000006 in ?? ()
#20 0x00000000 in ?? ()
#21 0x00000000 in ?? ()
#22 0x0000000c in ?? ()
#23 0x00000004 in ?? ()
#24 0x00000000 in ?? ()
#25 0x00000033 in ?? ()
#26 0x00010292 in ?? ()
#27 0xbfbfe280 in ?? ()
#28 0x0000003b in ?? ()
#29 0x00000000 in ?? ()
#30 0x00000004 in ?? ()
#31 0xbfbfedc8 in ?? ()
#32 0x282d6618 in ?? ()
#33 0x49700000 in ?? ()
#34 0xc0bf09c0 in tdq_cpu ()
#35 0xc63dc1e4 in ?? ()
#36 0xe7d8273c in ?? ()
#37 0xe7d82700 in ?? ()
#38 0x01944ce9 in ?? ()
#39 0xc07786bb in sched_switch (td=3DCannot access memory at address 0xbfbf=
e2f0
) at /usr/src/sys/kern/sched_ule.c:1898
Previous frame inner to this frame (corrupt stack?)
(kgdb) server# kgdb /boot/kernel/kernel vmcore.0=08=1B[K1=0D
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:=
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 condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
There is no member named pathname.
Reading symbols from /boot/kernel/acpi.ko...Reading symbols from /boot/kern=
el/acpi.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/acpi.ko
Reading symbols from /boot/kernel/fdescfs.ko...Reading symbols from /boot/k=
ernel/fdescfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/fdescfs.ko
Reading symbols from /boot/kernel/pflog.ko...Reading symbols from /boot/ker=
nel/pflog.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pflog.ko
Reading symbols from /boot/kernel/pf.ko...Reading symbols from /boot/kernel=
/pf.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pf.ko
Unread portion of the kernel message buffer:
<6>pid 8628 (megarc), uid 0: exited on signal 11
Fatal trap 12: page fault while in kernel mode
cpuid =3D 1; apic id =3D 06
fault virtual address =3D 0xbfc00000
fault code =3D supervisor read, page not present
instruction pointer =3D 0x20:0xc0a5096f
stack pointer =3D 0x28:0xe7c74a74
frame pointer =3D 0x28:0xe7c74ab4
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 8628 (megarc)
trap number =3D 12
panic: page fault
cpuid =3D 1
Uptime: 2h14m34s
Physical memory: 2035 MB
Dumping 253 MB: 238 222 206 190 174 158 142 126 110 94 78 62 46 30 14
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc075b1a7 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:4=
18
#2 0xc075b469 in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:572
#3 0xc0a54cdc in trap_fatal (frame=3D0xe7c74a34, eva=3D3217031168) at /usr=
/src/sys/i386/i386/trap.c:899
#4 0xc0a54f60 in trap_pfault (frame=3D0xe7c74a34, usermode=3D0, eva=3D3217=
031168) at /usr/src/sys/i386/i386/trap.c:812
#5 0xc0a5590c in trap (frame=3D0xe7c74a34) at /usr/src/sys/i386/i386/trap.=
c:490
#6 0xc0a3badb in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7 0xc0a5096f in pmap_remove_pages (pmap=3D0xc569db6c) at /usr/src/sys/i38=
6/i386/pmap.c:3086
#8 0xc097e07c in vmspace_exit (td=3D0xc62b6660) at /usr/src/sys/vm/vm_map.=
c:404
#9 0xc0739c3a in exit1 (td=3D0xc62b6660, rv=3D11) at /usr/src/sys/kern/ker=
n_exit.c:294
#10 0xc075d633 in sigexit (td=3DVariable "td" is not available.
) at /usr/src/sys/kern/kern_sig.c:2877
#11 0xc075e8be in postsig (sig=3D11) at /usr/src/sys/kern/kern_sig.c:2749
#12 0xc078cd28 in ast (framep=3D0xe7c74d38) at /usr/src/sys/kern/subr_trap.=
c:250
#13 0xc0a3c3fd in doreti_ast () at /usr/src/sys/i386/i386/exception.s:290
#14 0xe7c74d38 in ?? ()
#15 0x0000003b in ?? ()
#16 0x0000003b in ?? ()
#17 0x0000003b in ?? ()
#18 0xbfbfee90 in ?? ()
#19 0x00000000 in ?? ()
#20 0xbfbfed58 in ?? ()
#21 0xe7c74d64 in ?? ()
#22 0x00000006 in ?? ()
#23 0x00000000 in ?? ()
#24 0x00000000 in ?? ()
#25 0x0809d094 in ?? ()
#26 0x0000000c in ?? ()
#27 0x00000004 in ?? ()
#28 0x0807b261 in ?? ()
#29 0x00000033 in ?? ()
#30 0x00010246 in ?? ()
#31 0xbfbfeb40 in ?? ()
#32 0x0000003b in ?? ()
#33 0x78617270 in ?? ()
#34 0x24007369 in ?? ()
#35 0x78502431 in ?? ()
#36 0x706d4959 in ?? ()
#37 0x17ed4000 in ?? ()
#38 0xc0bf09c0 in tdq_cpu ()
#39 0xc62b6844 in ?? ()
#40 0xe7c746a8 in ?? ()
#41 0xe7c7466c in ?? ()
#42 0x007b355a in ?? ()
#43 0xc07786bb in sched_switch (td=3DCannot access memory at address 0xbfbf=
ed60
) at /usr/src/sys/kern/sched_ule.c:1898
Previous frame inner to this frame (corrupt stack?)
(kgdb) server# kgdb /boot/kernel/kernel vmcore.1=08=1B[K2=0D
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:=
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 condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
There is no member named pathname.
Reading symbols from /boot/kernel/acpi.ko...Reading symbols from /boot/kern=
el/acpi.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/acpi.ko
Reading symbols from /boot/kernel/fdescfs.ko...Reading symbols from /boot/k=
ernel/fdescfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/fdescfs.ko
Reading symbols from /boot/kernel/pflog.ko...Reading symbols from /boot/ker=
nel/pflog.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pflog.ko
Reading symbols from /boot/kernel/pf.ko...Reading symbols from /boot/kernel=
/pf.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pf.ko
Unread portion of the kernel message buffer:
TPTE at 0xbfefeffc IS ZERO @ VA bfbff000
panic: bad pte
cpuid =3D 1
Uptime: 7h43m42s
Physical memory: 2035 MB
Dumping 270 MB: 255 239 223 207 191 175 159 143 127 111 95 79 63 47 31 15
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc075b1a7 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:4=
18
#2 0xc075b469 in panic (fmt=3DVariable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:572
#3 0xc0a509e6 in pmap_remove_pages (pmap=3D0xc62c3d3c) at /usr/src/sys/i38=
6/i386/pmap.c:3093
#4 0xc097e07c in vmspace_exit (td=3D0xc608e660) at /usr/src/sys/vm/vm_map.=
c:404
#5 0xc0739c3a in exit1 (td=3D0xc608e660, rv=3D0) at /usr/src/sys/kern/kern=
_exit.c:294
#6 0xc073af8d in sys_exit (td=3DCould not find the frame base for "sys_exi=
t".
) at /usr/src/sys/kern/kern_exit.c:98
#7 0xc0a552b5 in syscall (frame=3D0xe7c65d38) at /usr/src/sys/i386/i386/tr=
ap.c:1035
#8 0xc0a3bb40 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s=
:196
#9 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
--=20
szymon roczniak=20
simon(a)dischaos.com=20
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