Mac Book crashing on shutdown

Hello. I've been having this issue with my Mac Book for some time now. Pretty much everytime I try and restart or shutdown, it crashes and I have to hold the Startup button to shutdown. I'm on OS 10.6.6. I have posted the crash log below in the hope somebody who understands these complicated things might be able to give me some advice in how I can fix this problem. I have done a bit of searching and it would seem I'm experiencing a Kernal panic that might be caused by a combination of software running in the background when I try and shutdown.

Thankyou in advance - I really appreciate any advice.
Simon

Interval Since Last Panic Report: 162396 sec
Panics Since Last Report: 5
Anonymous UUID: F27BE390-A8EF-45D8-8B72-64E9C99E9D9B

Mon Mar 7 23:15:54 2011
panic(cpu 0 caller 0x2aab55): Kernel trap at 0x00967005, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0xffffffff, CR3: 0x00100000, CR4: 0x00000668
EAX: 0xffffffff, EBX: 0x05f4c600, ECX: 0x015f0000, EDX: 0x07727500
CR2: 0xffffffff, EBP: 0x2bc0bad8, ESI: 0x05cf8800, EDI: 0x0085f838
EFL: 0x00010086, EIP: 0x00967005, CS: 0x00000008, DS: 0x03130010
Error code: 0x00000002

Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x2bc0b8d8 : 0x21b50c (0x5d4438 0x2bc0b90c 0x223974 0x0)
0x2bc0b928 : 0x2aab55 (0x59623c 0x967005 0xe 0x596406)
0x2bc0ba08 : 0x2a09a8 (0x2bc0ba20 0x246 0x2bc0bad8 0x967005)
0x2bc0ba18 : 0x967005 (0xe 0x48 0x2bc00010 0x230010)
0x2bc0bad8 : 0x188c821 (0x5f4c600 0x0 0x2bc0bb68 0x9f)
0x2bc0baf8 : 0x4ff67e (0x5a8f000 0x85f838 0x1 0x0)
0x2bc0bb18 : 0x50f7b0 (0x5a8f000 0x85f838 0x2bc0bb48 0x4ffa01)
0x2bc0bb48 : 0x50f924 (0x5cf8800 0x0 0x1 0x0)
0x2bc0bb68 : 0x4ff67e (0x5cf8800 0x0 0x1 0x1)
0x2bc0bb88 : 0x4ff699 (0x5cf8800 0x0 0x2bc0bbb8 0x4ff67e)
0x2bc0bba8 : 0x531ee2 (0x5cf8800 0xffff 0x5cf8684 0x4ff699)
0x2bc0bbc8 : 0x531f15 (0x5cf8680 0x246 0x2bc0bc08 0x6ec5e00)
0x2bc0bbe8 : 0x4ff67e (0x5cf8680 0x0 0x1 0x1e)
0x2bc0bc08 : 0x4ff699 (0x5cf8680 0x0 0x2bc0bc58 0x0)
0x2bc0bc28 : 0x2844eb (0x5cf8680 0x6ec5e00 0x1e 0x2bc0bc58)
0x2bc0bc78 : 0x21d8d1 (0x7969a98 0x71375a0 0x610d164 0x1)
0x2bc0bcb8 : 0x210a3a (0x7969a00 0x12 0x2bc0bd18 0x20f45c)
0x2bc0bd18 : 0x21dda0 (0x7969a00 0x10000 0x0 0x2107c2)
0x2bc0bd48 : 0x23f567 (0x2bc0bd6c 0x24 0x6ea1b04 0x0)
0x2bc0bd98 : 0x214f6f (0x6ec5e00 0x1 0x1 0x221bb4)
0x2bc0bde8 : 0x215581 (0x52d675c 0x1d903 0x212fed90 0x5d2b3e8)
0x2bc0be28 : 0x22c521 (0x52d675c 0x6777aa0 0x2bc0be78 0x47a0fc)
0x2bc0be78 : 0x47ab31 (0x5d2b3e8 0x9 0x2 0x6782000)
0x2bc0bec8 : 0x4862b6 (0x61967e0 0x9 0x0 0x61968f0)
0x2bc0bf38 : 0x48915f (0x9 0x533a3f0 0x2bc0bfa8 0x100001f)
0x2bc0bf68 : 0x219107 (0x6782000 0xffffff7f 0x5fbff3d0 0x7fff)
0x2bc0bfa8 : 0x2a9a9a (0xffffffff 0x1 0x0 0x2278c7)
0x2bc0bfc8 : 0x2a08a6 (0x0 0x2 0x10 0x62c24c4)
Kernel Extensions in backtrace (with dependencies):
com.digidesign.mbox2.driver(8.0.3f1)@0x1887000->0x18a6fff
dependency: com.apple.iokit.IOAudioFamily(1.8.0fc1)@0xff0000
dependency: com.apple.iokit.IOUSBFamily(4.1.7)@0x122c000
dependency: com.apple.driver.AppleUSBMergeNub(4.1.5)@0x12bc000
com.apple.NVDAResman(6.2.6)@0x967000->0xc54fff
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x927000
dependency: com.apple.iokit.IONDRVSupport(2.2)@0x95a000
dependency: com.apple.iokit.IOGraphicsFamily(2.2)@0x938000

BSD process name corresponding to current thread: coreaudiod

Mac OS version:
10J567

Kernel version:
Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386
System model name: MacBook7,1 (Mac-F22C89C8)

System uptime in nanoseconds: 15985636475202
unloaded kexts:
com.apple.driver.AppleMCP89RootPortPM 1.11 (addr 0x11c7000, size 0x20480) - last unloaded 98429472536
loaded kexts:
com.digidesign.mbox2.driver 8.0.3f1
com.paceap.kext.pacesupport.snowleopard 5.7.2
com.digidesign.iokit.DigiDal 8.0.3f1
com.apple.driver.AppleHWSensor 1.9.3d0 - last loaded 35905953487
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AGPM 100.12.19
com.apple.driver.AppleMikeyHIDDriver 1.2.0
com.apple.driver.AppleUpstreamUserClient 3.4.5
com.apple.driver.AppleMCCSControl 1.0.17
com.apple.driver.AppleHDA 1.9.9f12
com.apple.driver.AudioAUUC 1.13
com.apple.driver.AppleMikeyDriver 1.9.9f12
com.apple.driver.SMCMotionSensor 3.0.0d4
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AudioIPCDriver 1.1.6
com.apple.driver.AppleIntelPenrynProfile 17
com.apple.driver.ACPI_SMC_PlatformPlugin 4.5.0d5
com.apple.driver.AppleLPC 1.4.12
com.apple.driver.AppleBacklight 170.0.34
com.apple.GeForce 6.2.6
com.apple.driver.AppleUSBTCButtons 200.3.2
com.apple.driver.AppleUSBTCKeyboard 200.3.2
com.apple.iokit.SCSITaskUserClient 2.6.5
com.apple.iokit.IOAHCIBlockStorage 1.6.3
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.driver.AirPortBrcm43224 426.36.1
com.apple.driver.AppleUSBHub 4.1.7
com.apple.driver.AppleAHCIPort 2.1.5
com.apple.nvenet 2.0.15
com.apple.driver.AppleUSBEHCI 4.1.7
com.apple.driver.AppleUSBOHCI 4.1.5
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
com.apple.driver.AppleHPET 1.5
com.apple.driver.AppleACPIButtons 1.3.5
com.apple.driver.AppleSMBIOS 1.6
com.apple.driver.AppleACPIEC 1.3.5
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 105.13.0
com.apple.security.sandbox 1
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.11
com.apple.driver.AppleIntelCPUPowerManagement 105.13.0
com.apple.driver.DspFuncLib 1.9.9f12
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.nvidia.nv50hal 6.2.6
com.apple.driver.AppleUSBAudio 2.7.6f4
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOBluetoothSerialManager 2.3.8f7
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.8.0fc1
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.9.9f12
com.apple.iokit.IOHDAFamily 1.9.9f12
com.apple.driver.AppleSMBusController 1.0.8d0
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.AppleSMC 3.1.0d3
com.apple.driver.IOPlatformPluginFamily 4.5.0d5
com.apple.driver.AppleSMBusPCI 1.0.8d0
com.apple.NVDAResman 6.2.6
com.apple.iokit.IONDRVSupport 2.2
com.apple.iokit.IOGraphicsFamily 2.2
com.apple.driver.BroadcomUSBBluetoothHCIController 2.3.8f7
com.apple.driver.AppleUSBBluetoothHCIController 2.3.8f7
com.apple.iokit.IOBluetoothFamily 2.3.8f7
com.apple.iokit.IOSCSIBlockCommandsDevice 2.6.5
com.apple.iokit.IOUSBMassStorageClass 2.6.5
com.apple.driver.AppleUSBMultitouch 206.6
com.apple.iokit.IOUSBHIDDriver 4.1.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.5
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.AppleUSBMergeNub 4.1.5
com.apple.driver.AppleUSBComposite 3.9.0
com.apple.iokit.IOAHCISerialATAPI 1.2.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.5
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IO80211Family 312
com.apple.iokit.IOUSBUserClient 4.1.5
com.apple.iokit.IOAHCIFamily 2.0.4
com.apple.iokit.IONetworkingFamily 1.9
com.apple.iokit.IOUSBFamily 4.1.7
com.apple.driver.NVSMU 2.2.7
com.apple.driver.AppleEFIRuntime 1.4.0
com.apple.iokit.IOHIDFamily 1.6.5
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 289
com.apple.iokit.IOStorageFamily 1.6.2
com.apple.driver.AppleACPIPlatform 1.3.5
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacBook7,1, BootROM MB71.0039.B0B, 2 processors, Intel Core 2 Duo, 2.4 GHz, 2 GB, SMC 1.60f5
Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.10.131.36.1)
Bluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS545025B9SA02, 232.89 GB
Serial ATA Device: HL-DT-ST DVDRW GS23N
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0x24600000
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06600000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8218, 0x06630000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0237, 0x06300000

Welcome to the Mac Forums.

Here's where it's crashing at:

BSD process name corresponding to current thread: coreaudiod

Click to expand...

The official definition of that process: From 'man coreaudiod':

coreaudiod is a mach_init.d daemon used for CoreAudio related purposes.
This daemon hosts the SystemSoundServer and is used as the Master process for HAL device management. coreaudiod was introduced with OSX version 10.4.

The process that's running in the background is the "coreaudio". Try opening up your Activity Monitor.app and look for the process. If it's eating up the CPU, shut it down. You know your system better than we do, so look for anything that might be tasking the sound system heavily.

Let us know.

Thanks chscag. Coreaudio is a driver for my USB audio interface. It is an MBox made by a company called Digidesign/Avid. It is actually well known to have lots of issues so I kind of half expected it to have something to do with this. Digidesign/Avid are well known for taking two years to react to OS updates.

The problem is is that I need to have this installed as I use my Mac Book to do live shows using this audio interface. Is there anything I can do before shutting down that might stop the crashes?

Thanks again.
Simon

Quit the application using the device and if that by itself does not work, disconnect the Mbox prior to shutting down.

Or wait for 2 years for them to fix it.

bobtomay said:

Or wait for 2 years for them to fix it.

Click to expand...

*snigger*

While I'm not into this type of equipment, I'm amazed how their stuff is continually recommended as the best around while simultaneously seeing reports over and over again about them taking forever to fix practically any and every issue related to their drivers and software. And how you practically have to stay a minimum of a version behind in the OS if you want their software to work.

And how you practically have to stay a minimum of a version behind in the OS if you want their software to work.

Click to expand...

Now where have I heard that before? Symantec?