Hi

I had a kernel panic on an Acer TravelMate. I use zfs and this is a i386.
This is 7-stable, built kernel and world yesterday.
I was playing music with mpg321, using X (mozilla) and the panic happened
while (as root) I typed 'sysctl -a|grep recvspace'

[EMAIL PROTECTED] /usr/obj/usr/src/sys/BEE]# uname -a
FreeBSD bee.local.net 7.0-STABLE FreeBSD 7.0-STABLE #20: Sat Mar 22
13:44:12 CET 2008     [EMAIL PROTECTED]:/usr/obj/usr/src/sys/BEE
i386

[EMAIL PROTECTED] /usr/obj/usr/src/sys/BEE]# kgdb kernel.debug 
/usr/crash/vmcore.0
[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 conditions.
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.
(kgdb)
(kgdb) backtrace
#0  doadump () at pcpu.h:195
#1  0xc0742cf8 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2  0xc0742fe3 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a3fa49 in trap_fatal (frame=0xd3ea1b18, eva=273)
    at /usr/src/sys/i386/i386/trap.c:899
#4  0xc0a3fcb9 in trap_pfault (frame=0xd3ea1b18, usermode=0, eva=273)
    at /usr/src/sys/i386/i386/trap.c:812
#5  0xc0a4067b in trap (frame=0xd3ea1b18) at /usr/src/sys/i386/i386/trap.c:490
#6  0xc0a26fcb in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0x00000111 in ?? ()

Previous frame inner to this frame (corrupt stack?)

include GENERIC
ident   BEE
device carp
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=100
options IPFIREWALL_FORWARD
options DUMMYNET
options IPDIVERT
options QUOTA
options KDB
options KDB_UNATTENDED
options DDB

[EMAIL PROTECTED] /usr/obj/usr/src/sys/BEE]# cat /etc/make.conf
CPUTYPE=pentium4
# added by use.perl 2007-12-07 14:27:59
PERL_VER=5.8.8
PERL_VERSION=5.8.8
KERNCONF=BEE


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 #20: Sat Mar 22 13:44:12 CET 2008
    [EMAIL PROTECTED]:/usr/obj/usr/src/sys/BEE
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2800.11-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
  
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x4400<CNXT-ID,xTPR>
real memory  = 469172224 (447 MB)
avail memory = 445128704 (424 MB)
ACPI APIC Table: <PTLTD          APIC  >
ioapic0 <Version 1.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <PTLTD   RSDT> on motherboard
acpi0: Overriding SCI Interrupt from IRQ 9 to IRQ 21
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
unknown: I/O range not supported
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 1bf00000 (3) failed
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x8008-0x800b on acpi0
acpi_ec0: <Embedded Controller: GPE 0x3> port 0x62,0x66 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: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <ATI RS300_200 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 0x9000-0x90ff mem
0xe0000000-0xe7ffffff,0xd8100000-0xd810ffff irq 16 at device 5.0 on
pci1
ohci0: <OHCI (generic) USB controller> mem 0xd8001000-0xd8001fff irq
19 at device 19.0 on pci0
ohci0: [GIANT-LOCKED]
ohci0: [ITHREAD]
usb0: OHCI version 1.0, legacy support
usb0: SMM does not respond, resetting
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: <ATI OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xd8002000-0xd8002fff irq
19 at device 19.1 on pci0
ohci1: [GIANT-LOCKED]
ohci1: [ITHREAD]
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: <ATI OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xd8002000-0xd8002fff irq
19 at device 19.1 on pci0
ohci1: [GIANT-LOCKED]
ohci1: [ITHREAD]
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: <ATI OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 3 ports with 3 removable, self powered
ehci0: <ATI SB200 USB 2.0 controller> mem 0xd8003000-0xd8003fff irq 19
at device 19.2 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb2: EHCI version 1.0
usb2: companion controllers, 3 ports each: usb0 usb1
usb2: <ATI SB200 USB 2.0 controller> on ehci0
usb2: USB revision 2.0
uhub2: <ATI EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb2
uhub2: 6 ports with 6 removable, self powered
pci0: <serial bus, SMBus> at device 20.0 (no driver attached)
atapci0: <ATI IXP200 UDMA100 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x8070-0x807f at device 20.1 on
pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
isab0: <PCI-ISA bridge> at device 20.3 on pci0
isa0: <ISA bus> on isab0
pcib2: <ACPI PCI-PCI bridge> at device 20.4 on pci0
pci2: <ACPI PCI bus> on pcib2
cbb0: <TI1520 PCI-CardBus Bridge> at device 4.0 on pci2
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb0: [ITHREAD]
cbb1: <TI1520 PCI-CardBus Bridge> at device 4.1 on pci2
cardbus1: <CardBus bus> on cbb1
pccard1: <16-bit PCCard bus> on cbb1
cbb1: [ITHREAD]
rl0: <RealTek 8139 10/100BaseTX> port 0xa000-0xa0ff mem
0xd8200000-0xd82000ff irq 16 at device 10.0 on pci2
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> PHY 0 on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:0a:e4:53:a7:98
rl0: [ITHREAD]
pcm0: <ATI IXP 200> mem 0xd8004400-0xd80044ff irq 17 at device 20.5 on pci0
pcm0: [ITHREAD]
pci0: <simple comms, generic modem> at device 20.6 (no driver attached)
acpi_tz0: <Thermal Zone> on acpi0
acpi_tz1: <Thermal Zone> on acpi0
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]
psm0: <PS/2 Mouse> 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,0xdc000-0xdffff pnpid
ORM0000 on isa0
fdc0: <Enhanced floppy controller> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: [FILTER]
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
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
WARNING: ZFS is considered to be an experimental feature in FreeBSD.
Timecounter "TSC" frequency 2800111428 Hz quality 800
Timecounters tick every 1.000 msec
ipfw2 (+ipv6) initialized, divert enabled, nat loadable, rule-based
forwarding enabled, default to deny, logging limited to 100
packets/entry by default
ZFS WARNING: Recommended minimum RAM size is 512MB; expect unstable behavior.
ZFS filesystem version 6
ZFS storage pool version 6
ad0: 38154MB <Seagate ST94019A 3.05> at ata0-master UDMA100
acd0: CDRW <QSI CD-RW/DVD-ROM SBW242C/UQ81> at ata1-master UDMA33
pcm0: <Avance Logic ALC655 AC97 Codec>
GEOM_LABEL: Label for provider acd0 is iso9660/GLENNGOULD3.
Trying to mount root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
Loading configuration files.
kernel dumps on /dev/ad0s1b

If you want me to investigate more please let me know.
Thanks for your help

Valerio Daelli
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