Hey, I've look around the whole of the internet for help and I couldn't find a fix for this problem. So sorry if this has already been covered.
Basically when I run Avid - ProTools 8 on my iMac and the music session gets quite heavy for the mac to run it drops to the "you need to restart your computer" screen. I've tried repairing the mac files with the Snow Leopard disk and it still crashes.
Any ideas on how to fix this problem?
Spec
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM91.008D.B08
SMC Version (system): 1.44f0
Report
Interval Since Last Panic Report: 25402 sec
Panics Since Last Report: 3
Anonymous UUID: 00EE7907-8796-4F14-92CA-211484403090
Sat Dec 18 23:48:43 2010
panic(cpu 1 caller 0x557f1d): "complete() while dma active"@/SourceCache/xnu/xnu-1504.9.17/iokit/Kernel/IOMemoryDescriptor.cpp:2273
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x6cda3b78 : 0x21b50c (0x5d42fc 0x6cda3bac 0x223974 0x0)
0x6cda3bc8 : 0x557f1d (0x5dd808 0x0 0x6cda3c38 0x13ebc0a)
0x6cda3c08 : 0x5592bb (0xabb8000 0x0 0x984d 0x5e80)
0x6cda3c98 : 0x1afad34 (0xabb8000 0x6cda3cf4 0x1 0x0)
0x6cda3d28 : 0x1afaefb (0x9e0b000 0x120 0x320 0x8f00940)
0x6cda3d88 : 0x1afb09a (0x9e0b000 0x9f50000 0x966 0x960)
0x6cda3da8 : 0x1af6531 (0x9e0b000 0x9f50000 0x190 0x191)
0x6cda3e08 : 0x128b7d8 (0xaaf8600 0x6cf1d000 0x6ce66000 0x191)
0x6cda3e58 : 0x128b9fe (0xaaf8600 0x191 0x800 0x1)
0x6cda3e88 : 0x128c06b (0xaaf8600 0x52d1d000 0x6cda3ef8 0x224fc1)
0x6cda3ef8 : 0x1288a48 (0xaaf8600 0xf44e788 0x191 0x181d)
0x6cda3f48 : 0x1287086 (0x89b0600 0x8ef6680 0xe20e 0x29f54e)
0x6cda3f78 : 0x22fd09 (0x8ef6680 0xe20e 0x6cda3fc8 0x227966)
0x6cda3fc8 : 0x2a06cc (0x863ea0 0x0 0x10 0x0)
Kernel Extensions in backtrace (with dependencies):
com.digidesign.mbox2.driver(8.0.3f1)@0x1aec000->0x1b0bfff
dependency: com.apple.iokit.IOAudioFamily(1.7.9fc4)@0x127e000
dependency: com.apple.iokit.IOUSBFamily(4.1.7)@0x13e3000
dependency: com.apple.driver.AppleUSBMergeNub(4.1.5)@0x1554000
com.apple.iokit.IOAudioFamily(1.7.9fc4)@0x127e000->0x1295fff
dependency: com.apple.kext.OSvKernDSPLib(1.3)@0x127a000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10H574
Kernel version:
Darwin Kernel Version 10.5.0: Fri Nov 5 23:20:39 PDT 2010; root:xnu-1504.9.17~1/RELEASE_I386
System model name: iMac9,1 (Mac-F2218EA9)
System uptime in nanoseconds: 8673773173480
unloaded kexts:
com.apple.driver.AirPortBrcm43xx 423.91.27 (addr 0xee1000, size 0x1900544) - last unloaded 217770631808
loaded kexts:
com.digidesign.mbox2.driver 8.0.3f1 - last loaded 22644058221
com.paceap.kext.pacesupport.snowleopard 5.7.2
com.caiaq.driver.NIUSBMaschineControllerDriver 2.4.12
com.digidesign.iokit.DigiIO 8.0.3f1
com.digidesign.iokit.DigiDal 8.0.3f1
com.digidesign.mbox2.boot.driver 8.0.3f1
com.apple.driver.AppleHWSensor 1.9.3d0
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.AppleMikeyDriver 1.9.9f12
com.apple.driver.AudioAUUC 1.13
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 6.2.4
com.apple.driver.AppleIRController 303.8
com.apple.iokit.SCSITaskUserClient 2.6.5
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.6.3
com.apple.driver.AppleHPET 1.5
com.apple.driver.AppleFWOHCI 4.7.1
com.apple.driver.AppleUSBHub 4.1.7
com.apple.driver.AirPortBrcm43224 426.36.1
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.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
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.AppleHIDKeyboard 141
com.apple.driver.AppleBluetoothHIDMouse 162
com.apple.driver.AppleHIDMouse 162
com.apple.driver.IOBluetoothHIDDriver 2.3.8f7
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.driver.AppleSMBusController 1.0.8d0
com.apple.nvidia.nv50hal 6.2.4
com.apple.driver.AppleUSBAudio 2.7.6f4
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOBluetoothSerialManager 2.3.8f7
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.7.9fc4
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.9.9f12
com.apple.iokit.IOHDAFamily 1.9.9f12
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 6.2.4
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.IOUSBHIDDriver 4.1.5
com.apple.driver.AppleUSBMergeNub 4.1.5
com.apple.driver.AppleUSBComposite 3.9.0
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.XsanFilter 402.1
com.apple.iokit.IOAHCISerialATAPI 1.2.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.5
com.apple.iokit.IOFireWireFamily 4.2.6
com.apple.iokit.IOUSBUserClient 4.1.5
com.apple.iokit.IO80211Family 312
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: iMac9,1, BootROM IM91.008D.B08, 2 processors, Intel Core 2 Duo, 2.66 GHz, 4 GB, SMC 1.44f0
Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.10.131.36.1)
Bluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: WDC WD3200AAJS-40H3A0, 298.09 GB
Serial ATA Device: HL-DT-ST DVDRW GA11N
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0x24400000
USB Device: USB2.0 Hub, 0x05e3 (Genesys Logic, Inc.), 0x0608, 0x24300000
USB Device: Maschine Controller, 0x17cc, 0x0808, 0x24310000
USB Device: USB Keystation 49e, 0x0a4d, 0x0090, 0x24320000
USB Device: Mbox 2, 0x0dba, 0x3000, 0x04100000
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x04500000
USB Device: iLok, 0x088e, 0x5036, 0x06400000
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8215, 0x06110000
Basically when I run Avid - ProTools 8 on my iMac and the music session gets quite heavy for the mac to run it drops to the "you need to restart your computer" screen. I've tried repairing the mac files with the Snow Leopard disk and it still crashes.
Any ideas on how to fix this problem?
Spec
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM91.008D.B08
SMC Version (system): 1.44f0
Report
Interval Since Last Panic Report: 25402 sec
Panics Since Last Report: 3
Anonymous UUID: 00EE7907-8796-4F14-92CA-211484403090
Sat Dec 18 23:48:43 2010
panic(cpu 1 caller 0x557f1d): "complete() while dma active"@/SourceCache/xnu/xnu-1504.9.17/iokit/Kernel/IOMemoryDescriptor.cpp:2273
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x6cda3b78 : 0x21b50c (0x5d42fc 0x6cda3bac 0x223974 0x0)
0x6cda3bc8 : 0x557f1d (0x5dd808 0x0 0x6cda3c38 0x13ebc0a)
0x6cda3c08 : 0x5592bb (0xabb8000 0x0 0x984d 0x5e80)
0x6cda3c98 : 0x1afad34 (0xabb8000 0x6cda3cf4 0x1 0x0)
0x6cda3d28 : 0x1afaefb (0x9e0b000 0x120 0x320 0x8f00940)
0x6cda3d88 : 0x1afb09a (0x9e0b000 0x9f50000 0x966 0x960)
0x6cda3da8 : 0x1af6531 (0x9e0b000 0x9f50000 0x190 0x191)
0x6cda3e08 : 0x128b7d8 (0xaaf8600 0x6cf1d000 0x6ce66000 0x191)
0x6cda3e58 : 0x128b9fe (0xaaf8600 0x191 0x800 0x1)
0x6cda3e88 : 0x128c06b (0xaaf8600 0x52d1d000 0x6cda3ef8 0x224fc1)
0x6cda3ef8 : 0x1288a48 (0xaaf8600 0xf44e788 0x191 0x181d)
0x6cda3f48 : 0x1287086 (0x89b0600 0x8ef6680 0xe20e 0x29f54e)
0x6cda3f78 : 0x22fd09 (0x8ef6680 0xe20e 0x6cda3fc8 0x227966)
0x6cda3fc8 : 0x2a06cc (0x863ea0 0x0 0x10 0x0)
Kernel Extensions in backtrace (with dependencies):
com.digidesign.mbox2.driver(8.0.3f1)@0x1aec000->0x1b0bfff
dependency: com.apple.iokit.IOAudioFamily(1.7.9fc4)@0x127e000
dependency: com.apple.iokit.IOUSBFamily(4.1.7)@0x13e3000
dependency: com.apple.driver.AppleUSBMergeNub(4.1.5)@0x1554000
com.apple.iokit.IOAudioFamily(1.7.9fc4)@0x127e000->0x1295fff
dependency: com.apple.kext.OSvKernDSPLib(1.3)@0x127a000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10H574
Kernel version:
Darwin Kernel Version 10.5.0: Fri Nov 5 23:20:39 PDT 2010; root:xnu-1504.9.17~1/RELEASE_I386
System model name: iMac9,1 (Mac-F2218EA9)
System uptime in nanoseconds: 8673773173480
unloaded kexts:
com.apple.driver.AirPortBrcm43xx 423.91.27 (addr 0xee1000, size 0x1900544) - last unloaded 217770631808
loaded kexts:
com.digidesign.mbox2.driver 8.0.3f1 - last loaded 22644058221
com.paceap.kext.pacesupport.snowleopard 5.7.2
com.caiaq.driver.NIUSBMaschineControllerDriver 2.4.12
com.digidesign.iokit.DigiIO 8.0.3f1
com.digidesign.iokit.DigiDal 8.0.3f1
com.digidesign.mbox2.boot.driver 8.0.3f1
com.apple.driver.AppleHWSensor 1.9.3d0
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.AppleMikeyDriver 1.9.9f12
com.apple.driver.AudioAUUC 1.13
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 6.2.4
com.apple.driver.AppleIRController 303.8
com.apple.iokit.SCSITaskUserClient 2.6.5
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.6.3
com.apple.driver.AppleHPET 1.5
com.apple.driver.AppleFWOHCI 4.7.1
com.apple.driver.AppleUSBHub 4.1.7
com.apple.driver.AirPortBrcm43224 426.36.1
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.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
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.AppleHIDKeyboard 141
com.apple.driver.AppleBluetoothHIDMouse 162
com.apple.driver.AppleHIDMouse 162
com.apple.driver.IOBluetoothHIDDriver 2.3.8f7
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.driver.AppleSMBusController 1.0.8d0
com.apple.nvidia.nv50hal 6.2.4
com.apple.driver.AppleUSBAudio 2.7.6f4
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOBluetoothSerialManager 2.3.8f7
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.7.9fc4
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.9.9f12
com.apple.iokit.IOHDAFamily 1.9.9f12
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 6.2.4
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.IOUSBHIDDriver 4.1.5
com.apple.driver.AppleUSBMergeNub 4.1.5
com.apple.driver.AppleUSBComposite 3.9.0
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.XsanFilter 402.1
com.apple.iokit.IOAHCISerialATAPI 1.2.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.5
com.apple.iokit.IOFireWireFamily 4.2.6
com.apple.iokit.IOUSBUserClient 4.1.5
com.apple.iokit.IO80211Family 312
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: iMac9,1, BootROM IM91.008D.B08, 2 processors, Intel Core 2 Duo, 2.66 GHz, 4 GB, SMC 1.44f0
Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.10.131.36.1)
Bluetooth: Version 2.3.8f7, 2 service, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: WDC WD3200AAJS-40H3A0, 298.09 GB
Serial ATA Device: HL-DT-ST DVDRW GA11N
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0x24400000
USB Device: USB2.0 Hub, 0x05e3 (Genesys Logic, Inc.), 0x0608, 0x24300000
USB Device: Maschine Controller, 0x17cc, 0x0808, 0x24310000
USB Device: USB Keystation 49e, 0x0a4d, 0x0090, 0x24320000
USB Device: Mbox 2, 0x0dba, 0x3000, 0x04100000
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x04500000
USB Device: iLok, 0x088e, 0x5036, 0x06400000
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8215, 0x06110000