Kernel panic in 10.6.8 on MacBook Pro 3,1 any time a USB device is plugged in

Question

I updated my MacBook Pro 3,1 (late 2007) from 10.6.7 to 10.6.8, and when the update was completed, any time any USB device was plugged in to either USB port, there was an instant kernel panic.I checked carefully to confirm that this also happened after booting into Safe Mode to disable any extensions or login items.So I had no choice but to revert to 10.6.7 and apply a few updates and patches short of 10.6.8.I&#x27;m writing this to report this bug to Apple. I hope they address this issue. If anybody can tell me how to access the correct system log recording the kernel panics and submit it to Apple, I&#x27;d be willing to do that.

CMCSK · Answer

Mac OS X: How to log a kernel panic

Wheat Williams · Answer

CMCSK: Thanks for the link, but you provided no further instructions, such as exactly WHERE to report the problem. So for now I&#x27;m just going to post the information right here.MacBook Pro 15-inch, 3,1, Core 2 Duo 2.2GHz, 6GB RAM, 500GB hard drive with about 300GB free. Main hard drive is Hitachi HTS725050A9A364:  Capacity:500.11 GB (500,107,862,016 bytes)    S.M.A.R.T. status:VerifiedBoots up normally with no perpherals attached, but crashes the instant that anything is plugged into any USB port. Here are two kernel panic logs.Anonymous UUID:                    BF74836E-B8BC-48E9-96CA-0BA9705D26A5Fri Jun 24 01:01:36 2011panic(cpu 1 caller 0x5054a6): "OSCollection::_RESERVEDOSCollection6 called."@/SourceCache/xnu/xnu-1504.15.3/libkern/c++/OSMetaClass.cpp:906Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)0x79abb9c8 : 0x21b837 (0x5dd7fc 0x79abb9fc 0x223ce1 0x0) 0x79abba18 : 0x5054a6 (0x5de36c 0x5def46 0x5def46 0x6) 0x79abba38 : 0x50834e (0x85f858 0x6 0x79abba78 0x507001) 0x79abba58 : 0x9bb59b (0xb983400 0x0 0x24 0xb99ecc0) 0x79abbab8 : 0x9bb9c2 (0xbaa5e00 0xb99ecc0 0x2 0x9bb9e6) 0x79abbaf8 : 0x987720 (0xbaa5e00 0xb96c500 0x79abbb28 0x0) 0x79abbb48 : 0x543f60 (0xbaa5e00 0xb96c500 0x1 0x506b76) 0x79abbba8 : 0x542137 (0xb96c500 0xbaa5e00 0xb94c3e0 0xb94cba0) 0x79abbc58 : 0x5426e9 (0xb96c500 0xaf0d300 0x0 0xffffffff) 0x79abbca8 : 0x5439b9 (0xb96c500 0x0 0x79abbcd8 0xaebbc20) 0x79abbce8 : 0x542d91 (0xb96c500 0x0 0x79abbd18 0x85f8f8) 0x79abbd28 : 0x984441 (0xb96c500 0x0 0xba45ac0 0xba3d580) 0x79abbd48 : 0x97ce86 (0xb96c500 0xb983000 0x0 0x79abbda8) 0x79abbd88 : 0x9b6d8a (0xb983000 0xaf57200 0x0 0xba478c0) 0x79abbe18 : 0x543f60 (0xb983000 0xaf57200 0x1 0x506b76) 0x79abbe78 : 0x542137 (0xaf57200 0xb983000 0xba47820 0xba4d960) 0x79abbf28 : 0x5426e9 (0xaf57200 0xb8cfc40 0x0 0x516766) 0x79abbf78 : 0x5443d5 (0xaf57200 0x8 0x79abbfac 0x1) 0x79abbfc8 : 0x2a179c (0xba2a0c0 0x0 0x34324e5a 0x48414f49)       Kernel Extensions in backtrace (with dependencies):         com.Mouse.driver.MouseSetting(1.0.1)@0x9ba000-&gt;0x9c1fff            dependency: com.apple.iokit.IOUSBFamily(4.2.4)@0x941000            dependency: com.apple.iokit.IOUSBHIDDriver(4.2.0)@0x9b3000            dependency: com.apple.iokit.IOHIDFamily(1.6.6)@0x977000            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x92a000         com.apple.iokit.IOUSBHIDDriver(4.2.0)@0x9b3000-&gt;0x9b9fff            dependency: com.apple.iokit.IOHIDFamily(1.6.6)@0x977000            dependency: com.apple.iokit.IOUSBFamily(4.2.4)@0x941000         com.apple.iokit.IOHIDFamily(1.6.6)@0x977000-&gt;0x9b2fffBSD process name corresponding to current thread: kernel_taskMac OS version:10K540Kernel version:Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386System model name: MacBookPro3,1 (Mac-F4238BC8)System uptime in nanoseconds: 29865026156unloaded kexts:(none)loaded kexts:com.Cycling74.driver.Soundflower          1.5.2com.rogueamoeba.HermesAudio          3.0.2com.digidesign.iokit.DigiDal          8.0.3f1com.Mouse.driver.MouseSetting          1.0.1com.apple.driver.AppleUpstreamUserClient          3.5.7 - last loaded 29000861372com.apple.driver.AppleMCCSControl          1.0.20com.apple.driver.AppleHDA          2.0.5f13com.apple.driver.InternalModemSupport          2.6.2com.apple.GeForce          6.3.6com.apple.driver.SMCMotionSensor          3.0.1d2com.apple.driver.AudioAUUC          1.57com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AudioIPCDriver          1.1.6com.apple.driver.AirPort.Atheros          411.19.4com.apple.driver.AirPort.Atheros21          425.14.7com.apple.driver.AppleIntelYonahProfile          14com.apple.driver.AppleIntelPenrynProfile          17com.apple.driver.AppleIntelNehalemProfile          11com.apple.driver.AppleIntelMeromProfile          19com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.0a1com.apple.driver.AppleLPC          1.5.1com.apple.driver.AppleGraphicsControl          2.10.6com.apple.driver.AppleBacklight          170.0.46com.apple.kext.AppleSMCLMU          1.5.2d10com.apple.driver.AppleUSBTrackpad          201.6com.apple.driver.AppleUSBTCKeyEventDriver          201.6com.apple.driver.AppleUSBTCKeyboard          201.6com.apple.driver.AppleIRController          303.8com.apple.driver.CSRHIDTransitionDriver          2.4.5f3com.apple.iokit.SCSITaskUserClient          2.6.8com.apple.BootCache          31.1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.iokit.IOAHCIBlockStorage          1.6.4com.apple.driver.AppleFWOHCI          4.7.3com.apple.iokit.AppleYukon2          3.2.1b1com.apple.driver.AppleUSBHub          4.2.4com.apple.driver.AppleAHCIPort          2.1.7com.apple.driver.AppleIntelPIIXATA          2.5.1com.apple.driver.AppleUSBEHCI          4.2.4com.apple.driver.AppleSmartBatteryManager          160.0.0com.apple.driver.AppleEFINVRAM          1.4.0com.apple.driver.AppleRTC          1.3.1com.apple.driver.AppleHPET          1.5com.apple.driver.AppleUSBUHCI          4.2.0com.apple.driver.AppleACPIButtons          1.3.6com.apple.driver.AppleSMBIOS          1.7com.apple.driver.AppleACPIEC          1.3.6com.apple.driver.AppleAPIC          1.4com.apple.driver.AppleIntelCPUPowerManagementClient          142.6.0com.apple.security.sandbox          1com.apple.security.quarantine          0com.apple.nke.applicationfirewall          2.1.12com.apple.driver.AppleIntelCPUPowerManagement          142.6.0com.apple.driver.DspFuncLib          2.0.5f13com.apple.driver.AppleProfileReadCounterAction          17com.apple.nvidia.nv50hal          6.3.6com.apple.NVDAResman          6.3.6com.apple.driver.AppleProfileTimestampAction          10com.apple.driver.AppleProfileThreadInfoAction          14com.apple.driver.AppleProfileRegisterStateAction          10com.apple.driver.AppleProfileKEventAction          10com.apple.driver.AppleProfileCallstackAction          20com.apple.iokit.IOFireWireIP          2.0.3com.apple.iokit.IOSurface          74.2com.apple.iokit.IOBluetoothSerialManager          2.4.5f3com.apple.iokit.IOSerialFamily          10.0.3com.apple.iokit.IOAudioFamily          1.8.3fc2com.apple.kext.OSvKernDSPLib          1.3com.apple.driver.AppleHDAController          2.0.5f13com.apple.iokit.IOHDAFamily          2.0.5f13com.apple.iokit.IO80211Family          320.1com.apple.iokit.AppleProfileFamily          41com.apple.driver.IOPlatformPluginFamily          4.7.0a1com.apple.driver.AppleSMBusPCI          1.0.10d0com.apple.driver.AppleBacklightExpert          1.0.1com.apple.iokit.IONDRVSupport          2.2com.apple.driver.AppleSMC          3.1.0d5com.apple.iokit.IOGraphicsFamily          2.2com.apple.driver.CSRUSBBluetoothHCIController          2.4.5f3com.apple.driver.AppleUSBBluetoothHCIController          2.4.5f3com.apple.iokit.IOBluetoothFamily          2.4.5f3com.apple.iokit.IOUSBHIDDriver          4.2.0com.apple.driver.AppleUSBMergeNub          4.2.4com.apple.driver.AppleUSBComposite          3.9.0com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.8com.apple.iokit.IOBDStorageFamily          1.6com.apple.iokit.IODVDStorageFamily          1.6com.apple.iokit.IOCDStorageFamily          1.6.1com.apple.driver.XsanFilter          402.1com.apple.driver.AppleFileSystemDriver          2.0com.apple.iokit.IOATAPIProtocolTransport          2.5.1com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.8com.apple.iokit.IOFireWireFamily          4.2.6com.apple.iokit.IONetworkingFamily          1.10com.apple.iokit.IOUSBUserClient          4.2.4com.apple.iokit.IOAHCIFamily          2.0.6com.apple.iokit.IOATAFamily          2.5.1com.apple.driver.AppleEFIRuntime          1.4.0com.apple.iokit.IOUSBFamily          4.2.4com.apple.iokit.IOHIDFamily          1.6.6com.apple.iokit.IOSMBusFamily          1.1com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          6com.apple.driver.DiskImages          289com.apple.iokit.IOStorageFamily          1.6.3com.apple.driver.AppleACPIPlatform          1.3.6com.apple.iokit.IOPCIFamily          2.6.5com.apple.iokit.IOACPIFamily          1.3.0System Profile:Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.2 GHz, 6 GB, SMC 1.16f11Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 128 MBMemory Module: global_nameAirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x87), Atheros 5416: 2.0.19.4Bluetooth: Version 2.2.0f18, 2 service, 1 devices, 1 incoming serial portsNetwork Service: Ethernet, Ethernet, en0PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5Serial ATA Device: Hitachi HTS725050A9A364, 465.76 GBParallel ATA Device: HL-DT-ST DVDRW  GSA-S10N, 7.24 GBUSB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8502, 0xfd400000USB Device: Hub, 0x0424  (SMSC), 0x2507, 0xfd100000USB Device: Generic USB K/B Hub, 0x05c7, 0x7002, 0xfd130000USB Device: USB OPTICAL MOUSE, 0x093a  (Pixart Imaging, Inc.), 0x2510, 0xfd131000USB Device: Generic USB K/B Hub, 0x05c7, 0x7001, 0xfd133000USB Device: Apple Internal Keyboard / Trackpad, 0x05ac  (Apple Inc.), 0x021a, 0x5d200000USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0x5d100000USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8205, 0x1a100000&lt;&lt;END&gt;&gt;Fri Jun 24 00:57:16 2011panic(cpu 1 caller 0x5054a6): "OSCollection::_RESERVEDOSCollection6 called."@/SourceCache/xnu/xnu-1504.15.3/libkern/c++/OSMetaClass.cpp:906Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)0x800cb9c8 : 0x21b837 (0x5dd7fc 0x800cb9fc 0x223ce1 0x0) 0x800cba18 : 0x5054a6 (0x5de36c 0x5def46 0x5def46 0x6) 0x800cba38 : 0x50834e (0x85f858 0x6 0x800cba78 0x507001) 0x800cba58 : 0x9bb59b (0xba41b00 0x0 0x24 0xb91fdc0) 0x800cbab8 : 0x9bb9c2 (0xba6a700 0xb91fdc0 0x2 0x9bb9e6) 0x800cbaf8 : 0x987720 (0xba6a700 0xba44c00 0x800cbb28 0x0) 0x800cbb48 : 0x543f60 (0xba6a700 0xba44c00 0x1 0x506b76) 0x800cbba8 : 0x542137 (0xba44c00 0xba6a700 0xb8c8c40 0xb92f580) 0x800cbc58 : 0x5426e9 (0xba44c00 0xb92cc00 0x0 0xffffffff) 0x800cbca8 : 0x5439b9 (0xba44c00 0x0 0x800cbcd8 0xaf7b7a0) 0x800cbce8 : 0x542d91 (0xba44c00 0x0 0x800cbd18 0x85f8f8) 0x800cbd28 : 0x984441 (0xba44c00 0x0 0xb9c4ac0 0xb8e3be0) 0x800cbd48 : 0x97ce86 (0xba44c00 0xba41f00 0x0 0x800cbda8) 0x800cbd88 : 0x9b6d8a (0xba41f00 0xb086d00 0x0 0xb8ee3c0) 0x800cbe18 : 0x543f60 (0xba41f00 0xb086d00 0x1 0x506b76) 0x800cbe78 : 0x542137 (0xb086d00 0xba41f00 0xb8ee400 0xb8ee700) 0x800cbf28 : 0x5426e9 (0xb086d00 0xb9d6e80 0x0 0x516766) 0x800cbf78 : 0x5443d5 (0xb086d00 0x8 0x800cbfac 0x1) 0x800cbfc8 : 0x2a179c (0xb972260 0x0 0x37326567 0x5f007645)       Kernel Extensions in backtrace (with dependencies):         com.Mouse.driver.MouseSetting(1.0.1)@0x9ba000-&gt;0x9c1fff            dependency: com.apple.iokit.IOUSBFamily(4.2.4)@0x941000            dependency: com.apple.iokit.IOUSBHIDDriver(4.2.0)@0x9b3000            dependency: com.apple.iokit.IOHIDFamily(1.6.6)@0x977000            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x92a000         com.apple.iokit.IOUSBHIDDriver(4.2.0)@0x9b3000-&gt;0x9b9fff            dependency: com.apple.iokit.IOHIDFamily(1.6.6)@0x977000            dependency: com.apple.iokit.IOUSBFamily(4.2.4)@0x941000         com.apple.iokit.IOHIDFamily(1.6.6)@0x977000-&gt;0x9b2fffBSD process name corresponding to current thread: kernel_taskMac OS version:10K540Kernel version:Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386System model name: MacBookPro3,1 (Mac-F4238BC8)System uptime in nanoseconds: 14542624005unloaded kexts:(none)loaded kexts:com.Cycling74.driver.Soundflower          1.5.2com.rogueamoeba.HermesAudio          3.0.2com.digidesign.iokit.DigiDal          8.0.3f1com.Mouse.driver.MouseSetting          1.0.1com.apple.driver.AppleUpstreamUserClient          3.5.7 - last loaded 14232543593com.apple.driver.AppleMCCSControl          1.0.20com.apple.driver.InternalModemSupport          2.6.2com.apple.driver.AppleHDA          2.0.5f13com.apple.driver.AppleLPC          1.5.1com.apple.kext.AppleSMCLMU          1.5.2d10com.apple.driver.AppleGraphicsControl          2.10.6com.apple.driver.AppleBacklight          170.0.46com.apple.GeForce          6.3.6com.apple.driver.SMCMotionSensor          3.0.1d2com.apple.driver.AudioAUUC          1.57com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.AudioIPCDriver          1.1.6com.apple.driver.AirPort.Atheros          411.19.4com.apple.driver.AirPort.Atheros21          425.14.7com.apple.driver.AppleIntelYonahProfile          14com.apple.driver.AppleIntelPenrynProfile          17com.apple.driver.AppleIntelNehalemProfile          11com.apple.driver.AppleIntelMeromProfile          19com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.0a1com.apple.driver.AppleUSBTrackpad          201.6com.apple.driver.AppleUSBTCKeyEventDriver          201.6com.apple.driver.AppleUSBTCKeyboard          201.6com.apple.driver.AppleIRController          303.8com.apple.driver.CSRHIDTransitionDriver          2.4.5f3com.apple.iokit.SCSITaskUserClient          2.6.8com.apple.BootCache          31.1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.iokit.IOAHCIBlockStorage          1.6.4com.apple.driver.AppleAHCIPort          2.1.7com.apple.driver.AppleIntelPIIXATA          2.5.1com.apple.driver.AppleUSBHub          4.2.4com.apple.iokit.AppleYukon2          3.2.1b1com.apple.driver.AppleUSBEHCI          4.2.4com.apple.driver.AppleUSBUHCI          4.2.0com.apple.driver.AppleSmartBatteryManager          160.0.0com.apple.driver.AppleEFINVRAM          1.4.0com.apple.driver.AppleRTC          1.3.1com.apple.driver.AppleHPET          1.5com.apple.driver.AppleFWOHCI          4.7.3com.apple.driver.AppleACPIButtons          1.3.6com.apple.driver.AppleSMBIOS          1.7com.apple.driver.AppleACPIEC          1.3.6com.apple.driver.AppleAPIC          1.4com.apple.driver.AppleIntelCPUPowerManagementClient          142.6.0com.apple.security.sandbox          1com.apple.security.quarantine          0com.apple.nke.applicationfirewall          2.1.12com.apple.driver.AppleIntelCPUPowerManagement          142.6.0com.apple.driver.AppleHDAHardwareConfigDriver          2.0.5f13com.apple.driver.DspFuncLib          2.0.5f13com.apple.driver.AppleProfileReadCounterAction          17com.apple.iokit.IOFireWireIP          2.0.3com.apple.driver.AppleBacklightExpert          1.0.1com.apple.nvidia.nv50hal          6.3.6com.apple.NVDAResman          6.3.6com.apple.iokit.IONDRVSupport          2.2com.apple.driver.AppleProfileTimestampAction          10com.apple.driver.AppleProfileThreadInfoAction          14com.apple.driver.AppleProfileRegisterStateAction          10com.apple.driver.AppleProfileKEventAction          10com.apple.driver.AppleProfileCallstackAction          20com.apple.iokit.IOSurface          74.2com.apple.iokit.IOBluetoothSerialManager          2.4.5f3com.apple.iokit.IOSerialFamily          10.0.3com.apple.iokit.IOAudioFamily          1.8.3fc2com.apple.kext.OSvKernDSPLib          1.3com.apple.driver.AppleHDAController          2.0.5f13com.apple.iokit.IOGraphicsFamily          2.2com.apple.iokit.IOHDAFamily          2.0.5f13com.apple.iokit.IO80211Family          320.1com.apple.iokit.AppleProfileFamily          41com.apple.driver.AppleSMC          3.1.0d5com.apple.driver.IOPlatformPluginFamily          4.7.0a1com.apple.driver.AppleSMBusPCI          1.0.10d0com.apple.driver.CSRUSBBluetoothHCIController          2.4.5f3com.apple.driver.AppleUSBBluetoothHCIController          2.4.5f3com.apple.iokit.IOBluetoothFamily          2.4.5f3com.apple.iokit.IOUSBHIDDriver          4.2.0com.apple.driver.AppleUSBMergeNub          4.2.4com.apple.driver.AppleUSBComposite          3.9.0com.apple.iokit.IOSCSIMultimediaCommandsDevice          2.6.8com.apple.iokit.IOBDStorageFamily          1.6com.apple.iokit.IODVDStorageFamily          1.6com.apple.iokit.IOCDStorageFamily          1.6.1com.apple.driver.AppleFileSystemDriver          2.0com.apple.driver.XsanFilter          402.1com.apple.iokit.IOATAPIProtocolTransport          2.5.1com.apple.iokit.IOSCSIArchitectureModelFamily          2.6.8com.apple.iokit.IOAHCIFamily          2.0.6com.apple.iokit.IOATAFamily          2.5.1com.apple.iokit.IOUSBUserClient          4.2.4com.apple.iokit.IONetworkingFamily          1.10com.apple.iokit.IOUSBFamily          4.2.4com.apple.driver.AppleEFIRuntime          1.4.0com.apple.iokit.IOFireWireFamily          4.2.6com.apple.iokit.IOHIDFamily          1.6.6com.apple.iokit.IOSMBusFamily          1.1com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          6com.apple.driver.DiskImages          289com.apple.iokit.IOStorageFamily          1.6.3com.apple.driver.AppleACPIPlatform          1.3.6com.apple.iokit.IOPCIFamily          2.6.5com.apple.iokit.IOACPIFamily          1.3.0&lt;&lt;END&gt;&gt;

CMCSK · Answer

Mac OS X 10.6 Help: Reporting problems to AppleMac OS X 10.6 Help: Sending problem reports to Apple

damarkian · Answer

I have the same problem. It only happens with 3rd party USB mice, though.The same kernel panic happens when I try to connect a bluetooth mouse as well. Do you happen to have Virtualbox or Parallels installed?

Barney-15E · Answer

You&#x27;ve got a ton of third-party drivers for various things. Any one of the those may be causing the issue.The drivers may have prevented or corrupted the update of the USB kexts.I have heard that some drivers will still load in Safe mode, so that doesn&#x27;t necessarily rule them out.

Wheat Williams · Answer

I am running VMWare Fusion to run Windows 7 in a virtual machine. That might have some effect on drivers loaded at startup.All of these observations you guys have made are valid, but upsetting. I have some third-party drivers. I use a Matias third-party mouse and keyboard, because I&#x27;ve been a Mac user since 1987 and I never have liked Apple mice or keyboards. I have always use third-party mice and keyboards since about 1995.On this MacBook Pro, I&#x27;ve run Tiger, Leopard and Snow Leopard, every single update version, and up through 10.6.7, I never encountered any conflicts or kernel panics from USB peripherals.Now Apple comes out with 10.6.8 and all of a sudden it seems like a third-party mouse or keyboard causes an instant kernel panic. This must mean that Apple has introduced an incompatibility.I can only hope that Apple is aware of this and will investigate the incompatibilities that they have introduced, and that they will issue a patch that corrects them. But since 10.6.8 is widely regarded as the "last" update until Lion, perhaps I will simply never update this MacBook Pro beyond 10.6.7.I will also report this to the Matias company and see if they know about it.

Barney-15E · Answer

Well, you haven&#x27;t ruled any of the extensions out, yet. It may not be the extensions for the keyboard and mouse.There&#x27;s a whole lot more there than just the keyboard and mouse drivers.You should uninstall them all and only install one at a time. Who knows, maybe reinstalling each one will fix the problem.Just because things break when a new update is released doesn&#x27;t mean Apple did something wrong. The company making the driver may have been doing something wrong the whole time, but it was never an issue until now.If the driver was taking a shortcut and accessing some memory location directly instead of issuing a call to the API, and now Apple changed the memory location, the driver is going to break and likely take the system with it.Apple likely won&#x27;t know anything about it unless you tell them. We don&#x27;t have anything to do with reporting bugs. We just try to help the best we can.

Wheat Williams · Answer

Barney:Thanks for the technical details in your explanation.Because damarkian reports that he also gets an instant kernel panic with 10.6.8 when plugging in a third-party USB mouse, or even a third-party Bluetooth mouse, I think that&#x27;s an indication that there may be a clear cause-and-effect going on.As far as I know, my Matias (OEM Pixart) USB mouse is fully class-compliant. I am certain that it does not use any third-party driver whatsoever.I&#x27;m an Apple-certified tech support technician so I appreciate what you say about all the various drivers that might be contributing to the problem, and the need to carefully troubleshoot one at a time. However, for me, I already spent several hours reverting from 10.6.8 to 10.6.7. This included downloading all the necessary stuff, re-installing 10.6.0 from my install DVD, running the 1.25GB 10.6.7 update combo installer, then manually downloading and re-installing Safari, iTunes, and various Apple updates short of 10.6.8, so I am not inclined to give the 10.6.8 updater another try at this moment. I suspect Apple has erred, and hope that bug fixes will be forthcoming.I have also reported this to the Matias keyboard and mouse company, and I will await to hear what they have to say on the matter.Thanks again to you all!

Barney-15E · Answer

Well, I&#x27;ve got no problems plugging anything USB into 10.6.8. Maybe I got the only good copy.

danshier · Answer

Semi off-topic, but how does one revert from 10.6.8 to .7? I&#x27;m having issues with my Macbook Pro not sleeping and would like to just go back to 7 until Lion/a stable .8 comes out.

Wheat Williams · Answer

Reverting to an earlier version, assuming you didn&#x27;t make a backup before you updated to the new version, is a multi-step process that takes many hours and a lot of waiting.First you get your original Mac OS X 10.6 Snow Leopard installer DVD. Boot from it and install a completely new copy of 10.6.0 on your main hard drive, over your existing Mac OS installation. This reverts you from 10.6.8 to 10.6.0, but you&#x27;ll want to then update to 10.6.7.Then go to apple.com to the support section, find the Mac OS X 10.6.7 Update Combo installer (1.12GB in size), download it, and run it and install it.Then run Software Update and install anything that it offers you other than the 10.6.8 updater. This may take several iterations of running Software Update, selecting and installing things, rebooting, and running Software Update again, etc.In my case I also discovered that I was left with 10.6.7 but an older version of Safari and iTunes, and an out-of-date version of Adobe Flash Player, so I had to separately download the latest versions of those and install them also.