panic with evolution

I reported this a couple of weeks ago, but wasn't able to get a trace 
from serial console.  Every time I start evolution I get the following 
panic shortly after.  Where the definition of shortly is not more than a 
couple of minutes.  Evolution is configured with spamassasin and spamd 
is running.  It seems to occur while it is trying to filter spam messages.

kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x24
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc070b71c
stack pointer           = 0x28:0xe7ad4b80
frame pointer           = 0x28:0xe7ad4ba8
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 0
current process         = 988 (evolution-2.4)
[thread pid 988 tid 100166 ]
Stopped at      propagate_priority+0x68:        movl    0x24(%eax),%eax
db> bt
Tracing pid 988 tid 100166 td 0xc5d1cd00
propagate_priority(c5d1cd00,c5fd4d00,c070bbc9,efa28856,ffc00014) at 
propagate_pr
iority+0x68
turnstile_wait(c5f73b30,c5fd4d00,0,c5f73ac8,c5d1cd00) at 
turnstile_wait+0x32a
_mtx_lock_sleep(c5f73b30,c5d1cd00,0,0,0) at _mtx_lock_sleep+0xf9
thread_single(0,8,c06b9e2d,c5fdec60,0) at thread_single+0x2db
fork1(c5d1cd00,14,0,e7ad4c78,c5f73ac8) at fork1+0x10c
fork(c5d1cd00,e7ad4d04,0,28f33000,7) at fork+0x29
syscall(1062003b,808003b,bfbf003b,4,0) at syscall+0x385
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (2, FreeBSD ELF32, fork), eip = 0x29121f07, esp = 
0xbf8fdb5c, ebp =
0xbf8fdbb8 ---
db>

KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2006 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 7.0-CURRENT #40: Fri Jan  6 23:06:25 EST 2006
    root_at_laptop.xxxx.com:/usr/obj/usr/src/sys/LAPTOP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz (1993.54-MHz 686-class 
CPU)
  Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7
  
Features=0xbfebf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,P
AT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x400<CNTX-ID>
real memory  = 1073618944 (1023 MB)
avail memory = 1037193216 (989 MB)
wlan: mac acl policy registered
ath_hal: 0.9.14.9 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413)
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <DELL CPi R  > on motherboard
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
acpi_perf0: <ACPI CPU Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
acpi_acad0: <AC Adapter> on acpi0
battery0: <ACPI Control Method Battery> on acpi0
battery1: <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 82845 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 
0xe0000000-0xe7ffffff,0
xfcff0000-0xfcffffff irq 11 at device 0.0 on pci1
acpi_video0: <ACPI video extension> on vgapci0
uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port 
0xbf80-0xbf9f irq 11
 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801CA/CAM (ICH3) 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
uhub0: 2 ports with 2 removable, self powered
pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci2: <ACPI PCI bus> on pcib2
xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xec80-0xecff mem 
0xf8fffc00-0xf8ff
fc7f irq 11 at device 0.0 on pci2
miibus0: <MII bus> on xl0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl0: Ethernet address: 00:08:74:9d:9a:91
cbb0: <TI1420 PCI-CardBus Bridge> at device 1.0 on pci2
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb1: <TI1420 PCI-CardBus Bridge> at device 1.1 on pci2
cardbus1: <CardBus bus> on cbb1
pccard1: <16-bit PCCard bus> on cbb1
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH3 UDMA100 controller> port 
0x1f0-0x1f7,0x3f6,0x170-0x177,0x37
6,0xbfa0-0xbfaf at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pcm0: <Intel ICH3 (82801CA)> port 0xd800-0xd8ff,0xdc80-0xdcbf irq 9 at 
device 31
.5 on pci0
pcm0: <Cirrus Logic CS4205 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 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
fdc0: <floppy drive controller (FDE)> port 0x3f2-0x3f5,0x3f7 irq 6 drq 2 
on acpi
0
fdc0: [FAST]
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on 
acpi0
sio0: type 16550A, console
ppc0: <ECP parallel printer port> port 0x378-0x37f,0x778-0x77b irq 7 drq 
3 on ac
pi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 
0xc0000-0xcefff,0xcf000-0xcf7ff,0xcf800-0xcffff
 pnpid ORM0000 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
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 1993542564 Hz quality 800
Timecounters tick every 1.000 msec
ath0: <Atheros 5212> mem 0xf4010000-0xf401ffff at device 0.0 on cardbus1
ath0: Ethernet address: 00:0f:b5:ad:2f:6f
ath0: mac 7.9 phy 4.5 radio 5.6
ad0: 38154MB <HITACHI DK23EB-40 00K0A0C0> at ata0-master UDMA100
acd0: CDROM <SAMSUNG CD-ROM SN-124/S004> at ata1-master PIO4
cd0 at ata1 bus 0 target 0 lun 0
cd0: <SAMSUNG CD-ROM SN-124 S004> Removable CD-ROM SCSI-0 device
cd0: 16.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
Trying to mount root from ufs:/dev/ad0s1a
xl0: link state changed to DOWN
ath0: link state changed to UP
drm0: <ATI Radeon LW RV200 Mobility 7500 M7> on vgapci0
info: [drm] AGP at 0xe8000000 64MB
info: [drm] Initialized radeon 1.19.0 20050911

--- kernel config ---
include         GENERIC

ident           LAPTOP

nocpu           I486_CPU
nocpu           I586_CPU

options         SCHED_ULE
nooptions       SCHED_4BSD

nooptions       GDB
nooptions       INVARIANTS
nooptions       INVARIANT_SUPPORT
nooptions       WITNESS
nooptions       WITNESS_SKIPSPIN

options         ZERO_COPY_SOCKETS

options         ALTQ
options         ALTQ_CBQ
options         ALTQ_RED
options         ALTQ_RIO
options         ALTQ_HFSC
options         ALTQ_CDNR
options         ALTQ_PRIQ

options         SC_PIXEL_MODE

device          cpufreq

device          atapicam

device          wlan_wep
device          wlan_ccmp
device          wlan_tkip
device          wlan_xauth
device          wlan_acl

device          ath
device          ath_hal
device          ath_rate_sample

device          sound
device          snd_ich

nodevice        plip
--- kernel config ---

robert.