Same issue here, different hardware though. I upgraded to the latest snapshot hoping it would help, but after 2 days had another random restart.
Going to roll back to 2.1.5 for now.
I've used the report crash option every time it crashes, I don't know where that goes exactly though. I also don't have that kernel dump to paste here because it's already sent and deleted.
Here is my boot log if that helps:
Copyright (c) 1992-2014 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 10.1-RELEASE-p6 #0 b69ba8f(releng/10.1)-dirty: Thu Mar 12 09:11:37 CDT 2015
root@pfs22-amd64-builder:/usr/obj.amd64/usr/pfSensesrc/src/sys/pfSense_SMP.10 amd64
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
CPU: Intel(R) Atom(TM) CPU 330 @ 1.60GHz (1600.03-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x106c2 Family = 0x6 Model = 0x1c Stepping = 2
Features=0xbfe9fbff <fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,htt,tm,pbe>Features2=0x40e31d <sse3,dtes64,mon,ds_cpl,tm2,ssse3,cx16,xtpr,pdcm,movbe>AMD Features=0x20100800 <syscall,nx,lm>AMD Features2=0x1 <lahf>TSC: P-state invariant, performance statistics
real memory = 4294967296 (4096 MB)
avail memory = 3571712000 (3406 MB)
Event timer "LAPIC" quality 400
ACPI APIC Table: <121009 APIC1510>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 HTT threads
cpu0 (BSP): APIC ID: 0
cpu1 (AP/HT): APIC ID: 1
cpu2 (AP): APIC ID: 2
cpu3 (AP/HT): APIC ID: 3
ioapic0: Changing APIC ID to 4
ioapic0 <version 1.1=""> irqs 0-23 on motherboard
wlan: mac acl policy registered
ipw_bss: You need to read the LICENSE file in /usr/share/doc/legal/intel_ipw/.
ipw_bss: If you agree with the license, set legal.intel_ipw.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (ipw_bss_fw, 0xffffffff8060b270, 0) error 1
ipw_ibss: You need to read the LICENSE file in /usr/share/doc/legal/intel_ipw/.
ipw_ibss: If you agree with the license, set legal.intel_ipw.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (ipw_ibss_fw, 0xffffffff8060b320, 0) error 1
ipw_monitor: You need to read the LICENSE file in /usr/share/doc/legal/intel_ipw/.
ipw_monitor: If you agree with the license, set legal.intel_ipw.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (ipw_monitor_fw, 0xffffffff8060b3d0, 0) error 1
iwi_bss: You need to read the LICENSE file in /usr/share/doc/legal/intel_iwi/.
iwi_bss: If you agree with the license, set legal.intel_iwi.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (iwi_bss_fw, 0xffffffff80632a40, 0) error 1
iwi_ibss: You need to read the LICENSE file in /usr/share/doc/legal/intel_iwi/.
iwi_ibss: If you agree with the license, set legal.intel_iwi.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (iwi_ibss_fw, 0xffffffff80632af0, 0) error 1
iwi_monitor: You need to read the LICENSE file in /usr/share/doc/legal/intel_iwi/.
iwi_monitor: If you agree with the license, set legal.intel_iwi.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (iwi_monitor_fw, 0xffffffff80632ba0, 0) error 1
random: <software, yarrow=""> initialized
kbd1 at kbdmux0
cryptosoft0: <software crypto=""> on motherboard
padlock0: No ACE support.
acpi0: <121009 RSDT1510> on motherboard
acpi0: Power Button (fixed)
acpi0: reservation of fefe1000, 1000 (3) failed
acpi0: reservation of fee01000, ff000 (3) failed
acpi0: reservation of fec00000, 1000 (3) failed
acpi0: reservation of fee00000, 1000 (3) failed
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, dff00000 (3) failed
cpu0: <acpi cpu=""> on acpi0
cpu1: <acpi cpu=""> on acpi0
cpu2: <acpi cpu=""> on acpi0
cpu3: <acpi cpu=""> on acpi0
hpet0: <high precision="" event="" timer=""> iomem 0xfed00000-0xfed00fff irq 2,8 on acpi0
Timecounter "HPET" frequency 25000000 Hz quality 950
attimer0: <at timer=""> port 0x40-0x43 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
atrtc0: <at realtime="" clock=""> port 0x70-0x71 on acpi0
Event timer "RTC" frequency 32768 Hz quality 0
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
pcib0: <acpi host-pci="" bridge=""> port 0xcf8-0xcff on acpi0
pci0: <acpi pci="" bus=""> on pcib0
pci0: <memory, ram=""> at device 0.1 (no driver attached)
isab0: <pci-isa bridge=""> port 0x4f00-0x4fff at device 3.0 on pci0
isa0: <isa bus=""> on isab0
pci0: <memory, ram=""> at device 3.1 (no driver attached)
pci0: <memory, ram=""> at device 3.3 (no driver attached)
pci0: <processor> at device 3.5 (no driver attached)
ohci0: <nvidia nforce="" mcp79="" usb="" controller=""> mem 0xfae7f000-0xfae7ffff irq 22 at device 4.0 on pci0
usbus0 on ohci0
ehci0: <nvidia nforce="" mcp79="" usb="" 2.0="" controller=""> mem 0xfae7ec00-0xfae7ecff irq 23 at device 4.1 on pci0
usbus1: EHCI version 1.0
usbus1 on ehci0
ohci1: <nvidia nforce="" mcp79="" usb="" controller=""> mem 0xfae7d000-0xfae7dfff irq 20 at device 6.0 on pci0
usbus2 on ohci1
ehci1: <nvidia nforce="" mcp79="" usb="" 2.0="" controller=""> mem 0xfae7e800-0xfae7e8ff irq 21 at device 6.1 on pci0
usbus3: EHCI version 1.0
usbus3 on ehci1
pcib1: <acpi pci-pci="" bridge=""> at device 9.0 on pci0
pci1: <acpi pci="" bus=""> on pcib1
nfe0: <nvidia nforce="" mcp79="" networking="" adapter=""> port 0xc080-0xc087 mem 0xfae7c000-0xfae7cfff,0xfae7e400-0xfae7e4ff,0xfae7e000-0xfae7e00f irq 22 at device 10.0 on pci0
miibus0: <mii bus=""> on nfe0
rgephy0: <rtl8169s 8211="" 8110s="" 1000base-t="" media="" interface=""> PHY 3 on miibus0
rgephy0: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
ahci0: <nvidia mcp79="" ahci="" sata="" controller=""> port 0xc000-0xc007,0xbc00-0xbc03,0xb880-0xb887,0xb800-0xb803,0xb480-0xb48f mem 0xfae7a000-0xfae7bfff irq 23 at device 11.0 on pci0
ahci0: AHCI v1.20 with 6 3Gbps ports, Port Multiplier supported
ahci0: quirks=0x200 <noaa>ahcich0: <ahci channel=""> at channel 0 on ahci0
ahcich1: <ahci channel=""> at channel 1 on ahci0
ahcich2: <ahci channel=""> at channel 2 on ahci0
ahcich3: <ahci channel=""> at channel 3 on ahci0
ahcich4: <ahci channel=""> at channel 4 on ahci0
ahcich5: <ahci channel=""> at channel 5 on ahci0
pcib2: <acpi pci-pci="" bridge=""> irq 20 at device 12.0 on pci0
pci2: <acpi pci="" bus=""> on pcib2
pcib3: <acpi pci-pci="" bridge=""> at device 16.0 on pci0
pci3: <acpi pci="" bus=""> on pcib3
vgapci0: <vga-compatible display=""> port 0xdc00-0xdc7f mem 0xfb000000-0xfbffffff,0xe0000000-0xefffffff,0xf6000000-0xf7ffffff irq 21 at device 0.0 on pci3
vgapci0: Boot video device
pcib4: <acpi pci-pci="" bridge=""> irq 21 at device 21.0 on pci0
pci4: <acpi pci="" bus=""> on pcib4
pcib5: <acpi pci-pci="" bridge=""> irq 22 at device 22.0 on pci0
pci5: <acpi pci="" bus=""> on pcib5
re0: <realtek 8111="" 8168="" b="" c="" cp="" d="" dp="" e="" f="" g="" pcie="" gigabit="" ethernet=""> port 0xe800-0xe8ff mem 0xfebff000-0xfebfffff,0xf9ffc000-0xf9ffffff irq 16 at device 0.0 on pci5
re0: Using 1 MSI-X message
re0: Chip rev. 0x2c000000
re0: MAC rev. 0x00200000
miibus1: <mii bus=""> on re0
rgephy1: <rtl8169s 8211="" 8110s="" 1000base-t="" media="" interface=""> PHY 1 on miibus1
rgephy1: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
pcib6: <acpi pci-pci="" bridge=""> irq 23 at device 23.0 on pci0
pci6: <acpi pci="" bus=""> on pcib6
pcib7: <acpi pci-pci="" bridge=""> irq 20 at device 24.0 on pci0
pci7: <acpi pci="" bus=""> on pcib7
acpi_button0: <power button=""> on acpi0
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sc0: <system console=""> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <generic isa="" vga=""> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
atkbdc0: <keyboard controller="" (i8042)=""> at port 0x60,0x64 on isa0
atkbd0: <at keyboard=""> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
ppc0: cannot reserve I/O port range
p4tcc0: <cpu frequency="" thermal="" control=""> on cpu0
p4tcc1: <cpu frequency="" thermal="" control=""> on cpu1
p4tcc2: <cpu frequency="" thermal="" control=""> on cpu2
p4tcc3: <cpu frequency="" thermal="" control=""> on cpu3
Timecounters tick every 1.000 msec
IPsec: Initialized Security Association Processing.
random: unblocking device.
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 480Mbps High Speed USB v2.0
usbus2: 12Mbps Full Speed USB v1.0
usbus3: 480Mbps High Speed USB v2.0
ugen0.1: <nvidia> at usbus0
uhub0: <nvidia 1="" 9="" ohci="" root="" hub,="" class="" 0,="" rev="" 1.00="" 1.00,="" addr=""> on usbus0
ugen3.1: <nvidia> at usbus3
uhub1: <nvidia 1="" 9="" ehci="" root="" hub,="" class="" 0,="" rev="" 2.00="" 1.00,="" addr=""> on usbus3
ugen2.1: <nvidia> at usbus2
uhub2: <nvidia 1="" 9="" ohci="" root="" hub,="" class="" 0,="" rev="" 1.00="" 1.00,="" addr=""> on usbus2
ugen1.1: <nvidia> at usbus1
uhub3: <nvidia 1="" 9="" ehci="" root="" hub,="" class="" 0,="" rev="" 2.00="" 1.00,="" addr=""> on usbus1
uhub0: 6 ports with 6 removable, self powered
uhub2: 6 ports with 6 removable, self powered
uhub1: 6 ports with 6 removable, self powered
uhub3: 6 ports with 6 removable, self powered
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <maxtor 6y080m0="" yar51ew0=""> ATA-7 SATA device
ada0: Serial Number Y2GQ3BEE
ada0: 150.000MB/s transfers (SATA 1.x, UDMA6, PIO 8192bytes)
ada0: 78166MB (160084415 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad4
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
Timecounter "TSC" frequency 1600034292 Hz quality 1000
Trying to mount root from ufs:/dev/ada0s1a [rw]...</maxtor></nvidia></nvidia></nvidia></nvidia></nvidia></nvidia></nvidia></nvidia></cpu></cpu></cpu></cpu></at></keyboard></generic></system></power></acpi></acpi></acpi></acpi></rtl8169s></mii></realtek></acpi></acpi></acpi></acpi></vga-compatible></acpi></acpi></acpi></acpi></ahci></ahci></ahci></ahci></ahci></ahci></noaa></nvidia></rtl8169s></mii></nvidia></acpi></acpi></nvidia></nvidia></nvidia></nvidia></processor></memory,></memory,></isa></pci-isa></memory,></acpi></acpi></at></at></high></acpi></acpi></acpi></acpi></software></software,></version></lahf></syscall,nx,lm></sse3,dtes64,mon,ds_cpl,tm2,ssse3,cx16,xtpr,pdcm,movbe></fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,htt,tm,pbe>