Kernel panic on new mac pro - not impressed

Question

Anyone got any ideas what this means:
Mon Mar 10 16:15:30 2008
Machine-check capabilities (cpu 2) 0x0000000000000806:
6 error-reporting banks
threshold-based error status present
Machine-check status 0x0000000000000005
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32MC0STATUS(0x401): 0xb200004000000800 valid
MCA error code : 0x0800
Model specific error code: 0x0000
Other information : 0x00000040
Threshold-based status : Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
IA32MC1STATUS(0x405): 0x0000000000000000 invalid
IA32MC2STATUS(0x409): 0x0000000000000000 invalid
IA32MC3STATUS(0x40d): 0x0020000000000000 invalid
IA32MC4STATUS(0x411): 0x0000000000000011 invalid
IA32MC5STATUS(0x415): 0xb200220024080400 valid
MCA error code : 0x0400
Model specific error code: 0x2408
Other information : 0x00002200
Threshold-based status : Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
panic(cpu 2 caller 0x001A860C): Machine Check at 0x00b7afb9, thread:0x754e410, trapno:0x12, err:0x0, registers:
CR0: 0x8001003b, CR2: 0x0002a000, CR3: 0x0148d000, CR4: 0x00000660
EAX: 0x00000000, EBX: 0x00000050, ECX: 0x00000001, EDX: 0x074268b0
ESP: 0x5e9cbd40, EBP: 0x5e9cbe38, ESI: 0x074268b0, EDI: 0x00000001
EFL: 0x00000046, EIP: 0x00b7afb9
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x55ba6fb8 : 0x12b0e1 (0x457024 0x55ba6fec 0x13321a 0x0)
0x55ba7008 : 0x1a860c (0x460248 0xb7afb9 0x754e410 0x12)
0x55ba70e8 : 0x19fbe3 (0x55ba7100 0x0 0x0 0x0)
0x5e9cbe38 : 0x1a9b07 (0xffffffff 0x7fffffff 0x5e9cbe98 0x6)
0x5e9cbe58 : 0x1a2a4e (0x0 0x744df80 0xd52fce0d 0x5de)
0x5e9cbe88 : 0x1357b3 (0x55b254bc 0xd52fce0d 0x5de 0x55b254a8)
0x5e9cbee8 : 0x135e53 (0x1 0x754e410 0x7388c34 0x0)
0x5e9cbf38 : 0x136941 (0x754e42c 0x0 0x0 0x5ba834)
0x5e9cbf78 : 0x1369c2 (0x41d602 0x751ff80 0x0 0x751ff80)
0x5e9cbf98 : 0x41d6c1 (0x41d602 0x751ff80 0x76ea090 0x0)
0x5e9cbfc8 : 0x19e93c (0x751ff80 0x0 0x1a20b5 0x7ac43c8)
Backtrace terminated-invalid frame pointer 0
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9C31
Kernel version:
Darwin Kernel Version 9.2.0: Tue Feb 5 16:13:22 PST 2008; root:xnu-1228.3.13~1/RELEASE_I386
System model name: MacPro3,1 (Mac-F42C88C8)

Answer 1

Hard to say. You did upgrade the machine to 10.5.2 so it's possible your upgrade has malfunctioned. It could also be a hardware problem. I would insert the OS X Installer Disc One that came with the computer and restart the computer. After the chime press and hold down the "D" key until the diagnostic screen appears. Run the extended diagnostics. If any errors are reported be sure to note them down, then call AppleCare or your local Apple retailer. If no errors are reported run the extended diagnostics several times. Sometimes it takes a while for the error to occur.
If no hardware errors are reported then it may be a software related problem. In this case you should first repair the hard drive and permissions:
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger and Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now shutdown the computer for a couple of minutes and then restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.1 for Leopard) and/or TechTool Pro (4.6.1 for Leopard) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Now download the 10.5.2 Combo Updater and reinstall it. You should also install the Leopard Graphics Update if you haven't already.
If the above doesn't resolve your problem then you should try an Archive and Install to reinstall OS X:
How to Perform an Archive and Install
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger) and/or TechTool Pro (4.5.2 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.