This is just one example of several - any insights would be appreciated. Did a hardware diagnostic and no problems found.

Interval Since Last Panic Report: 36 sec
Panics Since Last Report: 1
Anonymous UUID: F2DED161-E10F-F7FE-3030-E95F73A68D24

Mon Sep 17 22:33:31 2012
panic(cpu 0 caller 0xffffff80178b7bd5): Kernel trap at 0xffffff801782e906, type 12=stack bounds, registers:
CR0: 0x000000008001003b, CR2: 0xffffff808a2ed000, CR3: 0x000000001a5b1000, CR4: 0x0000000000000660
RAX: 0x088bae6161aa007d, RBX: 0xffffff8022bde000, RCX: 0x0000000009000000, RDX: 0xffffff8084280078
RSP: 0xffffff808fa93e40, RBP: 0x01ffff808fa93eb0, RSI: 0xffffff8084280068, RDI: 0x0000000000000000
R8: 0xffffff8017ebec60, R9: 0x0000000000000000, R10: 0xffffff8022c710c0, R11: 0x00000000ffffff80
R12: 0x0000000000000001, R13: 0x0000000000000000, R14: 0xffffff8022ca2000, R15: 0x0000000000000000
RFL: 0x0000000000010046, RIP: 0xffffff801782e906, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0xffffff808a2ed000, Error code: 0x0000000000000000, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address
0xffffff808fa93ae0 : 0xffffff801781d626
0xffffff808fa93b50 : 0xffffff80178b7bd5
0xffffff808fa93d20 : 0xffffff80178ce4ed
0xffffff808fa93d40 : 0xffffff801782e906
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0x1ffff808fa93eb0

BSD process name corresponding to current thread: kernel_task

Mac OS version:
Not yet set

Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide: 0x0000000017600000
Kernel text base: 0xffffff8017800000
System model name: MacBookAir3,1 (Mac-942452F5819B1C1B)

System uptime in nanoseconds: 1384626287
last loaded kext at 443649958: com.apple.driver.XsanFilter 404 (addr 0xffffff7f9958c000, size 20480)
loaded kexts:
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.2.2
com.apple.driver.AppleIntelCPUPowerManagementClien t 196.0.0
com.apple.driver.AppleUSBHub 5.2.5
com.apple.driver.AirPort.Brcm4331 602.15.22
com.apple.driver.AppleAHCIPort 2.4.1
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleUSBEHCI 5.4.0
com.apple.driver.AppleUSBOHCI 5.2.5
com.apple.driver.AppleEFINVRAM 1.6.1
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.7
com.apple.driver.AppleACPIButtons 1.6
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.6
com.apple.driver.AppleAPIC 1.6
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.iokit.IOUSBUserClient 5.2.5
com.apple.iokit.IO80211Family 500.15
com.apple.iokit.IONetworkingFamily 3.0
com.apple.driver.AppleMCP89RootPortPM 1.11
com.apple.iokit.IOAHCIFamily 2.2.1
com.apple.iokit.IOUSBFamily 5.4.0
com.apple.driver.NVSMU 2.2.9
com.apple.driver.AppleEFIRuntime 1.6.1
com.apple.iokit.IOHIDFamily 1.8.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 220
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 344
com.apple.iokit.IOStorageFamily 1.8
com.apple.driver.AppleKeyStore 28.21
com.apple.driver.AppleACPIPlatform 1.6
com.apple.iokit.IOPCIFamily 2.7.1
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
Model: MacBookAir3,1, BootROM MBA31.0061.B07, 2 processors, Intel Core 2 Duo, 1.6 GHz, 4 GB, SMC 1.67f6
Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54333235533642465238412D47372020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54333235533642465238412D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD1), Broadcom BCM43xx 1.0 (5.106.98.81.22)
Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Network Service: Open Garden, Ethernet, tun0
Serial ATA Device: APPLE SSD TS128C, 121.33 GB
USB Device: FaceTime Camera (Built-in), apple_vendor_id, 0x850a, 0x24600000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x04500000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821b, 0x04530000 / 5
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0242, 0x04300000 / 2