Kernel Panics since upgrade

Question

The very day I upgraded my iMac 27" to Mountain Lion, I started getting kernel panics. After enough panics, my disk gets corrupted and I have had to reinstall (thank you Time Machine). I eventually punted and took the machine to my local authorized dealer who also does support (no Apple stores near here). They couldn't help. Their advice was to reinstall the OS, restore from Time Machine with no apps, and reinstall them. Well, I was in the process of doing that. I had erased my disk, reinstalled Mountain Lion (takes forever with no local disk), and restored my data only from Time Machine; no applications.
A few hours later... kernel panic. The panics have nearly all come after I wake the machine from sleep. This last time, the screen saver (just the generic one that ships w/the os) had all kinds of pixellation on it before it went back to the OS, the drive thrashed for about a minute, and then the panic.
I have no kernel extensions now (kextstate | grep -v apple returns no results).
I've copied in the kernel panic log if anybody can help.
nterval Since Last Panic Report:  68654 sec
Panics Since Last Report:          5
Anonymous UUID:                    5D1E0314-C4AB-485B-9CC6-663F6287B35F
Sun Sep  9 07:38:16 2012
panic(cpu 6 caller 0xffffff80050b7b95): Kernel trap at 0xffffff80050a357a, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x00000001c7fea000, CR4: 0x0000000000000660
RAX: 0x000000000148a000, RBX: 0xffffff8012cd90a0, RCX: 0x0000000000000000, RDX: 0x0000000000000000
RSP: 0xffffff80e6c5b7c0, RBP: 0xffffff80e6c5b810, RSI: 0x0000000000000040, RDI: 0x00000000000a4505
R8:  0xffffff8027ee3dd8, R9:  0x0000000000000001, R10: 0xffffff80e6c5b95c, R11: 0x0000000000000000
R12: 0x0000000000000000, R13: 0xffffff8027ee3d80, R14: 0x00000001c6790000, R15: 0xffffffffffffffbf
RFL: 0x0000000000010246, RIP: 0xffffff80050a357a, CS:  0x0000000000000008, SS:  0x0000000000000000
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x6
Backtrace (CPU 6), Frame : Return Address
0xffffff80e6c5b460 : 0xffffff800501d5f6
0xffffff80e6c5b4d0 : 0xffffff80050b7b95
0xffffff80e6c5b6a0 : 0xffffff80050ce4ad
0xffffff80e6c5b6c0 : 0xffffff80050a357a
0xffffff80e6c5b810 : 0xffffff8005083743
0xffffff80e6c5bb30 : 0xffffff800509b2d8
0xffffff80e6c5bc50 : 0xffffff800505eec3
0xffffff80e6c5bdb0 : 0xffffff800506287a
0xffffff80e6c5bf40 : 0xffffff80050b7f69
0xffffff80e6c5bfb0 : 0xffffff80050ce3d1
BSD process name corresponding to current thread: ReportCrash
Mac OS version:
12B19
Kernel version:
Darwin Kernel Version 12.1.0: Tue Aug 14 13:29:55 PDT 2012; root:xnu-2050.9.2~1/RELEASE_X86_64
Kernel UUID: 3005059E-270B-3B9F-940D-7A66C05DDC9D
Kernel slide:     0x0000000004e00000
Kernel text base: 0xffffff8005000000
System model name: iMac11,1 (Mac-F2268DAE)
System uptime in nanoseconds: 14998208650684
last loaded kext at 1038891193439: com.apple.filesystems.smbfs          1.8 (addr 0xffffff7f86dd0000, size 229376)
last unloaded kext at 326507103432: com.apple.filesystems.msdosfs          1.8 (addr 0xffffff7f86dc2000, size 57344)
loaded kexts:
com.apple.filesystems.smbfs          1.8
com.apple.driver.AppleBluetoothMultitouch          75.15
com.apple.iokit.IOBluetoothSerialManager          4.0.9f8
com.apple.driver.AudioAUUC          1.60
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AppleMikeyDriver          2.3.0f2
com.apple.kext.AMDFramebuffer          8.0.0
com.apple.driver.AGPM          100.12.69
com.apple.driver.AppleHDA          2.3.0f2
com.apple.driver.AppleBacklight          170.2.3
com.apple.ATIRadeonX2000          8.0.0
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f8
com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.driver.AirPort.Atheros40          600.70.23
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.ApplePolicyControl          3.2.6
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleIRController          320.15
com.apple.driver.AppleUSBCardReader          3.1.0
com.apple.driver.Oxford_Semi          3.1.0
com.apple.iokit.SCSITaskUserClient          3.5.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.1
com.apple.driver.AppleUSBHub          5.1.6
com.apple.driver.AppleFWOHCI          4.9.5
com.apple.driver.AppleAHCIPort          2.4.0
com.apple.driver.AppleUSBEHCI          5.1.5
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.driver.AppleBluetoothHIDKeyboard          165.5
com.apple.driver.AppleHIDKeyboard          165.5
com.apple.driver.IOBluetoothHIDDriver          4.0.9f8
com.apple.driver.AppleMultitouchDriver          235.27
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.kext.triggers          1.0
com.apple.iokit.IOSurface          86.0.2
com.apple.driver.DspFuncLib          2.3.0f2
com.apple.iokit.IOAudioFamily          1.8.9fc9
com.apple.kext.OSvKernDSPLib          1.6
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IOBluetoothFamily          4.0.9f8
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f8
com.apple.iokit.IOEthernetAVBController          1.0.2b1
com.apple.driver.AppleHDAController          2.3.0f2
com.apple.iokit.IOHDAFamily          2.3.0f2
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IO80211Family          500.15
com.apple.iokit.IONetworkingFamily          3.0
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.kext.AMD4800Controller          8.0.0
com.apple.kext.AMDSupport          8.0.0
com.apple.driver.AppleGraphicsControl          3.2.6
com.apple.iokit.IONDRVSupport          2.3.4
com.apple.iokit.IOGraphicsFamily          2.3.4
com.apple.driver.AppleSMC          3.1.3d11
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.iokit.IOUSBHIDDriver          5.0.0
com.apple.iokit.IOUSBMassStorageClass          3.5.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.1
com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.1.1
com.apple.iokit.IOFireWireSBP2          4.2.0
com.apple.driver.AppleUSBMergeNub          5.1.5
com.apple.driver.AppleUSBComposite          5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOUSBUserClient          5.0.0
com.apple.iokit.IOAHCIFamily          2.2.0
com.apple.iokit.IOUSBFamily          5.1.6
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          28.18
com.apple.driver.AppleACPIPlatform          1.6
com.apple.iokit.IOPCIFamily          2.7
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: iMac11,1, BootROM IM111.0034.B02, 4 processors, Intel Core i7, 2.8 GHz, 8 GB, SMC 1.54f36
Graphics: ATI Radeon HD 4850, ATI Radeon HD 4850, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.70.23-P2P
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: WDC WD10EALX-089BA0, 1 TB
Serial ATA Device: OPTIARC DVD RW AD-5680H
USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Cinergy HT USB PVR (US), 0x0ccd, 0x0075, 0xfa130000 / 6
USB Device: CanoScan, 0x04a9  (Canon Inc.), 0x220e, 0xfa140000 / 5
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa120000 / 4
USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 7
USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 4
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd110000 / 3
FireWire Device: d2 Quadra v3, LaCie, 800mbit_speed
FireWire Device: FA GoFlex Desk, Seagate, 800mbit_speed

Answer 1

Yeah, that's what I started after I posted the kernel panic info this morning. I didn't quite go all the way down to nothing, but after waking it from several sleep sessions, it didn't panic. I had only my external drives attached. However, when waking from sleep, it was thrashing pretty hard. I unmounted the drives, and disconnected the firewire cable, and voila, that went away.
I'll run like this for the rest of the day to see what I get; waking it up periodically as if I were going to use it for something other than browsing :-)
I'm kinda pointing loosely pointing my finger at the d2 Quadra drive. I had problems with that drive when I bought it. I had to open a support issue w/Lacie, and they came out with a firmware upgrade based on what I reported. The issue was that it was not waking from sleep with the rest of the machine. I have to wonder if whatever they changed doesn't play nice with Mountain Lion.
And thinking about it, the only time the techs were able to get this thing to panic was the day after I brought them my Time Machine backup (which is on the Lacie drive) so they could test with my data again. My boot drive had gotten corrupted yet again after the last panic before I took it in.
So, I guess I should ask. Is anybody else running a d2 Quadra v3 2GB Firewire drive on an older iMac with Mountain Lion?