iMac Keeps Randomly Crashing - I Get The Message: Press and Hold Power Button..etc.

Discussion in 'iMac' started by rs14smith, Oct 6, 2010.

  1. rs14smith macrumors regular

    Joined:
    Dec 7, 2009
    #1
    Hi everyone,

    I'm hoping someone here can help me figure out why my iMac all of a sudden is starting to freeze up and displays a message on the screen that tells me in like 5 languages to hold the power button and reboot the computer.

    This has happened 3 times this week.

    The 1st and 2nd time that it happened, I had plugged in my USB Flash Drive, and as soon as I did, I got the Mac screen of death is what I'm going to call it :)

    The 3rd time that it happened, I was playing L4D2 (Mac version) while inside one of the solo campagins. I noticed L4D2 appeared to be having a slow FPS (I didn't see the FPS value) but the game was hardly playable, but I can play it just fine via Boot Camp.

    Lastly, when I rebooted my computer, I got a popup that informed me of a Problem Report for Mac OSX, and it had a lot of stuff under "Problem Details and System Configuration". Here is what it gave, if it helps any:

    Code:
    Interval Since Last Panic Report:  393824 sec
    Panics Since Last Report:          3
    Anonymous UUID:                    81C2C5DE-B0F0-4EF5-9B44-621039516BC1
    
    Wed Oct  6 19:25:38 2010
    panic(cpu 1 caller 0x2269f0): "thread_invoke: preemption_level -1, possible cause: unlocking an unlocked mutex or spinlock"@/SourceCache/xnu/xnu-1504.7.4/osfmk/kern/sched_prim.c:1476
    Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
    0x82b5be28 : 0x21b455 (0x5cf328 0x82b5be5c 0x2238b1 0x0) 
    0x82b5be78 : 0x2269f0 (0x58712c 0xffffffff 0x5870c4 0x225fd1) 
    0x82b5bef8 : 0x2270f6 (0xe335b98 0xf46da80 0xebb5d90 0x0) 
    0x82b5bf68 : 0x219012 (0x0 0x0 0x5 0x0) 
    0x82b5bfa8 : 0x2a79f7 (0xffffffff 0x1 0x0 0xdc73a20) 
    0x82b5bfc8 : 0x29e8a6 (0x0 0x0 0x10 0xdc73a20) 
    
    BSD process name corresponding to current thread: LCCDaemon
    
    Mac OS version:
    10F569
    
    Kernel version:
    Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386
    System model name: iMac11,1 (Mac-F2268DAE)
    
    System uptime in nanoseconds: 104979390916336
    unloaded kexts:
    com.apple.filesystems.ntfs	3.2 (addr 0x1178000, size 0x393216) - last unloaded 34459564635709
    loaded kexts:
    com.parallels.kext.vmmain	3.0
    com.parallels.kext.hypervisor	3.0
    com.vmware.kext.vmnet	3.0.0
    com.vmware.kext.vmioplug	3.0.0
    com.vmware.kext.vmci	3.0.0
    com.vmware.kext.vmx86	3.0.0
    xxx.qnation.PeerGuardian	1.1.9
    com.vara.driver.VaraAudio	1.0.2
    com.Cycling74.driver.Soundflower	1.5.0
    com.parallels.kext.Pvsnet	3.0
    com.pctools.iantivirus.kfs	1.0.1
    com.parallels.kext.ConnectUSB	3.0.0
    com.Logitech.Control Center.HID Driver	2.6.2
    com.apple.filesystems.ntfs	3.2 - last loaded 40777632353295
    com.apple.filesystems.msdosfs	1.6.1
    com.apple.driver.AGPM	100.12.12
    com.apple.driver.AppleHWSensor	1.9.3d0
    com.apple.driver.AppleMikeyHIDDriver	1.2.0
    com.apple.driver.AppleUpstreamUserClient	3.3.2
    com.apple.kext.ATIFramebuffer	6.1.8
    com.apple.driver.AppleHDA	1.8.7f1
    com.apple.driver.AppleMikeyDriver	1.8.7f1
    com.apple.driver.AudioAUUC	1.4
    com.apple.ATIRadeonX2000	6.1.8
    com.apple.Dont_Steal_Mac_OS_X	7.0.0
    com.apple.driver.AudioIPCDriver	1.1.2
    com.apple.driver.AirPort.Atheros21	423.9.9
    com.apple.driver.ACPI_SMC_PlatformPlugin	4.1.2b1
    com.apple.driver.AppleLPC	1.4.12
    com.apple.driver.AppleBacklight	170.0.24
    com.apple.filesystems.autofs	2.1.0
    com.apple.driver.AppleUSBCardReader	2.5.4
    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	1.6.2
    com.apple.driver.AppleFWOHCI	4.7.1
    com.apple.driver.AppleUSBHub	4.0.0
    com.apple.iokit.AppleBCM5701Ethernet	2.3.8b2
    com.apple.driver.AppleEFINVRAM	1.3.0
    com.apple.driver.AppleUSBEHCI	4.0.2
    com.apple.driver.AppleUSBUHCI	4.0.2
    com.apple.driver.AppleAHCIPort	2.1.2
    com.apple.driver.AppleACPIButtons	1.3.2
    com.apple.driver.AppleRTC	1.3.1
    com.apple.driver.AppleHPET	1.5
    com.apple.driver.AppleSMBIOS	1.6
    com.apple.driver.AppleACPIEC	1.3.2
    com.apple.driver.AppleAPIC	1.4
    com.apple.driver.AppleIntelCPUPowerManagementClient	105.10.0
    com.apple.security.sandbox	0
    com.apple.security.quarantine	0
    com.apple.nke.applicationfirewall	2.1.11
    com.apple.driver.AppleIntelCPUPowerManagement	105.10.0
    com.apple.driver.IOBluetoothHIDDriver	2.3.3f8
    com.apple.driver.AppleProfileReadCounterAction	17
    com.apple.driver.DspFuncLib	1.8.7f1
    com.apple.driver.AppleProfileTimestampAction	10
    com.apple.driver.AppleProfileThreadInfoAction	14
    com.apple.driver.AppleProfileRegisterStateAction	10
    com.apple.driver.AppleProfileKEventAction	10
    com.apple.driver.AppleSMBusController	1.0.8d0
    com.apple.driver.AppleProfileCallstackAction	20
    com.apple.iokit.IOFireWireIP	2.0.3
    com.apple.kext.ATI4800Controller	6.1.8
    com.apple.kext.ATISupport	6.1.8
    com.apple.iokit.IOSurface	74.0
    com.apple.iokit.IOBluetoothSerialManager	2.3.3f8
    com.apple.iokit.IOSerialFamily	10.0.3
    com.apple.driver.AppleHDAController	1.8.7f1
    com.apple.iokit.IOHDAFamily	1.8.7f1
    com.apple.iokit.IO80211Family	311.1
    com.apple.driver.AppleSMC	3.0.1d2
    com.apple.driver.IOPlatformPluginFamily	4.1.2b1
    com.apple.driver.AppleSMBusPCI	1.0.8d0
    com.apple.iokit.IONDRVSupport	2.1
    com.apple.iokit.IOGraphicsFamily	2.1
    com.apple.driver.AppleUSBAudio	2.7.3f1
    com.apple.iokit.IOAudioFamily	1.7.6fc2
    com.apple.kext.OSvKernDSPLib	1.3
    com.apple.iokit.AppleProfileFamily	41
    com.apple.driver.BroadcomUSBBluetoothHCIController	2.3.3f8
    com.apple.driver.AppleUSBBluetoothHCIController	2.3.3f8
    com.apple.iokit.IOBluetoothFamily	2.3.3f8
    com.apple.iokit.IOSCSIBlockCommandsDevice	2.6.5
    com.apple.iokit.IOUSBMassStorageClass	2.6.1
    com.apple.iokit.IOUSBHIDDriver	4.0.2
    com.apple.driver.AppleUSBMergeNub	4.0.0
    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	1.2.4
    com.apple.iokit.IOSCSIArchitectureModelFamily	2.6.5
    com.apple.iokit.IOFireWireFamily	4.2.6
    com.apple.iokit.IOUSBUserClient	4.0.0
    com.apple.iokit.IONetworkingFamily	1.9
    com.apple.iokit.IOUSBFamily	4.0.2
    com.apple.iokit.IOAHCIFamily	2.0.4
    com.apple.driver.AppleEFIRuntime	1.3.0
    com.apple.iokit.IOHIDFamily	1.6.4
    com.apple.iokit.IOSMBusFamily	1.1
    com.apple.kext.AppleMatch	1.0.0d1
    com.apple.security.TMSafetyNet	6
    com.apple.driver.DiskImages	283
    com.apple.iokit.IOStorageFamily	1.6.1
    com.apple.driver.AppleACPIPlatform	1.3.2
    com.apple.iokit.IOPCIFamily	2.6
    com.apple.iokit.IOACPIFamily	1.3.0
    Model: iMac11,1, BootROM IM111.0034.B02, 4 processors, Intel Core i5, 2.66 GHz, 8 GB, SMC 1.54f36
    Graphics: ATI Radeon HD 4850, ATI Radeon HD 4850, PCIe, 512 MB
    Memory Module: global_name
    AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 2.1.9.8.1
    Bluetooth: Version 2.3.3f8, 2 service, 19 devices, 1 incoming serial ports
    Network Service: AirPort, AirPort, en1
    Serial ATA Device: ST31000528ASQ, 931.51 GB
    Serial ATA Device: HL-DT-ST DVDRW  GA11N
    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfd100000
    USB Device: USB2.0 Hub, 0x05e3  (Genesys Logic, Inc.), 0x0608, 0xfd140000
    USB Device: Plantronics .Audio 626 DSP, 0x047f  (Plantronics, Inc.), 0xc006, 0xfd144000
    USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0xfd120000
    USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8502, 0xfd110000
    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfa100000
    USB Device: External HDD, 0x1058  (Western Digital Technologies, Inc.), 0x1003, 0xfa140000
    USB Device: USB Optical Mouse, 0x0461  (Primax Electronics), 0x4d0f, 0xfa130000
    USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000
    USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8215, 0xfa111000
    USB Device: Internal Memory Card Reader, 0x05ac  (Apple Inc.), 0x8403, 0xfa120000
    
    I hope someone here has had this issue and knows how to fix it, if not I'll just contact Apple Care.

    Thanks!
     
  2. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
  3. rs14smith thread starter macrumors regular

    Joined:
    Dec 7, 2009
    #3
  4. emptyCup macrumors 65816

    emptyCup

    Joined:
    Jan 5, 2005
    #4
    If this is a new iMac, call Apple. If it is an old iMac, what has changed since it started having problems? Did your flash drive work until now? Any new hardware? Did you run Disk Utility? Do you have a backup you can restore from?
     
  5. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #5
  6. rs14smith thread starter macrumors regular

    Joined:
    Dec 7, 2009
    #6
    This is the late 2009 27" iMac edition. I haven't added or changed anything that I know of. My plans are to call Apple Care if no one here can see from the System Configuration details provided what the issue is. The flash drive worked fine before this week, so I have no idea what is causing this.

    This problem has happened in the pass, but it was a rare occasion, but this week it's happening way to often.
     
  7. rs14smith thread starter macrumors regular

    Joined:
    Dec 7, 2009
    #7
    Oh really :eek:, okay, I wish I had a spare keyboard up here at school with me so I could just disconnect this one completely to see how it does.

    Guess I'll have to pay a trip to Best Buy tomorrow, as it seems to be up to date I guess, but then again, I don't see where in the System Preferences there is a button to check to see if any updates are available, and the Software Update isn't showing any new updates available either.
     
  8. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #8
  9. rs14smith thread starter macrumors regular

    Joined:
    Dec 7, 2009
    #9
    Will do. I just found out how to check for updates within the Configuration mode, and it does say there are no updates at this time, but I'll still download the update file from Logitech and give it a shot.

    I still think either way I'm going to go buy the Apple keyboard with the numpad from BB as I miss the numpad badly! :eek: And to also have a spare keyboard around :)
     

    Attached Files:

  10. rs14smith thread starter macrumors regular

    Joined:
    Dec 7, 2009
    #10
    Well, I applied the update, and restarted my iMac, and then started playing L4D2 for about an hour just fine, then out of no where when I was about to charge someone in the game, I got the Mac screen of death (press and hold the power button to restart computer...)

    So I'm thinking it's a combination of Steam maybe, and the Logitech, as I've owned this Logitech keyboard for almost 4 or 5 months now, and my iMac has never crashed this much (4 times in one week) as you can see from the new report:

    Code:
    Interval Since Last Panic Report:  396762 sec
    Panics Since Last Report:          4
    Anonymous UUID:                    81C2C5DE-B0F0-4EF5-9B44-621039516BC1
    
    Wed Oct  6 21:21:11 2010
    panic(cpu 3 caller 0x2269f0): "thread_invoke: preemption_level -1, possible cause: unlocking an unlocked mutex or spinlock"@/SourceCache/xnu/xnu-1504.7.4/osfmk/kern/sched_prim.c:1476
    Backtrace (CPU 3), Frame : Return Address (4 potential args on stack)
    0x8210bd08 : 0x21b455 (0x5cf328 0x8210bd3c 0x2238b1 0x0) 
    0x8210bd58 : 0x2269f0 (0x58712c 0xffffffff 0x5870c4 0x2265d1) 
    0x8210bdd8 : 0x2270f6 (0xee777c4 0x0 0xf0430e0 0xffffffff) 
    0x8210be48 : 0x227184 (0x210c2f 0x0 0x0 0xee777a8) 
    0x8210be68 : 0x211a9c (0x210c2f 0x7000006 0x800 0x0) 
    0x8210be98 : 0x216d1e (0xef77f50 0x7000006 0x800 0x0) 
    0x8210bf18 : 0x293b71 (0x8210bf44 0x0 0x0 0x0) 
    0x8210bfc8 : 0x29f018 (0xede0720 0x0 0x10 0xede0720) 
    
    BSD process name corresponding to current thread: LCCDaemon
    
    Mac OS version:
    10F569
    
    Kernel version:
    Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386
    System model name: iMac11,1 (Mac-F2268DAE)
    
    System uptime in nanoseconds: 3551122875689
    unloaded kexts:
    com.apple.driver.AppleFileSystemDriver	2.0 (addr 0x7ab44000, size 0x12288) - last unloaded 362166618879
    loaded kexts:
    com.parallels.kext.vmmain	3.0
    com.parallels.kext.hypervisor	3.0
    com.vmware.kext.vmnet	3.0.0
    com.vmware.kext.vmioplug	3.0.0
    com.vmware.kext.vmci	3.0.0
    com.vmware.kext.vmx86	3.0.0
    xxx.qnation.PeerGuardian	1.1.9
    com.vara.driver.VaraAudio	1.0.2
    com.Cycling74.driver.Soundflower	1.5.0
    com.parallels.kext.Pvsnet	3.0
    com.pctools.iantivirus.kfs	1.0.1
    com.parallels.kext.ConnectUSB	3.0.0
    com.Logitech.Control Center.HID Driver	3.3.0
    com.apple.filesystems.msdosfs	1.6.1 - last loaded 50528914158
    com.apple.filesystems.ntfs	3.2
    com.apple.filesystems.autofs	2.1.0
    com.apple.driver.AGPM	100.12.12
    com.apple.driver.AppleHWSensor	1.9.3d0
    com.apple.driver.AudioAUUC	1.4
    com.apple.driver.AppleUpstreamUserClient	3.3.2
    com.apple.driver.AppleMikeyHIDDriver	1.2.0
    com.apple.kext.ATIFramebuffer	6.1.8
    com.apple.Dont_Steal_Mac_OS_X	7.0.0
    com.apple.driver.AppleMikeyDriver	1.8.7f1
    com.apple.ATIRadeonX2000	6.1.8
    com.apple.driver.AppleHDA	1.8.7f1
    com.apple.driver.AudioIPCDriver	1.1.2
    com.apple.iokit.AppleBCM5701Ethernet	2.3.8b2
    com.apple.driver.AirPort.Atheros21	423.9.9
    com.apple.driver.ACPI_SMC_PlatformPlugin	4.1.2b1
    com.apple.driver.AppleLPC	1.4.12
    com.apple.driver.AppleBacklight	170.0.24
    com.apple.driver.AppleIRController	303.8
    com.apple.driver.AppleUSBCardReader	2.5.4
    com.apple.iokit.SCSITaskUserClient	2.6.5
    com.apple.iokit.IOAHCIBlockStorage	1.6.2
    com.apple.BootCache	31
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib	1.0.0d1
    com.apple.driver.AppleUSBHub	4.0.0
    com.apple.driver.AppleFWOHCI	4.7.1
    com.apple.driver.AppleEFINVRAM	1.3.0
    com.apple.driver.AppleUSBEHCI	4.0.2
    com.apple.driver.AppleUSBUHCI	4.0.2
    com.apple.driver.AppleAHCIPort	2.1.2
    com.apple.driver.AppleACPIButtons	1.3.2
    com.apple.driver.AppleRTC	1.3.1
    com.apple.driver.AppleHPET	1.5
    com.apple.driver.AppleSMBIOS	1.6
    com.apple.driver.AppleACPIEC	1.3.2
    com.apple.driver.AppleAPIC	1.4
    com.apple.driver.AppleIntelCPUPowerManagementClient	105.10.0
    com.apple.security.sandbox	0
    com.apple.security.quarantine	0
    com.apple.nke.applicationfirewall	2.1.11
    com.apple.driver.AppleIntelCPUPowerManagement	105.10.0
    com.apple.driver.IOBluetoothHIDDriver	2.3.3f8
    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.iokit.IOSurface	74.0
    com.apple.iokit.IOBluetoothSerialManager	2.3.3f8
    com.apple.iokit.IOSerialFamily	10.0.3
    com.apple.driver.DspFuncLib	1.8.7f1
    com.apple.driver.AppleSMBusController	1.0.8d0
    com.apple.driver.AppleUSBAudio	2.7.3f1
    com.apple.iokit.IOAudioFamily	1.7.6fc2
    com.apple.kext.OSvKernDSPLib	1.3
    com.apple.kext.ATI4800Controller	6.1.8
    com.apple.kext.ATISupport	6.1.8
    com.apple.iokit.IOFireWireIP	2.0.3
    com.apple.iokit.AppleProfileFamily	41
    com.apple.driver.AppleHDAController	1.8.7f1
    com.apple.iokit.IOHDAFamily	1.8.7f1
    com.apple.iokit.IO80211Family	311.1
    com.apple.iokit.IONetworkingFamily	1.9
    com.apple.driver.AppleSMC	3.0.1d2
    com.apple.driver.IOPlatformPluginFamily	4.1.2b1
    com.apple.driver.AppleSMBusPCI	1.0.8d0
    com.apple.iokit.IONDRVSupport	2.1
    com.apple.iokit.IOGraphicsFamily	2.1
    com.apple.driver.BroadcomUSBBluetoothHCIController	2.3.3f8
    com.apple.driver.AppleUSBBluetoothHCIController	2.3.3f8
    com.apple.iokit.IOBluetoothFamily	2.3.3f8
    com.apple.iokit.IOUSBHIDDriver	4.0.2
    com.apple.iokit.IOUSBMassStorageClass	2.6.1
    com.apple.iokit.IOSCSIBlockCommandsDevice	2.6.5
    com.apple.driver.AppleUSBMergeNub	4.0.0
    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	1.2.4
    com.apple.iokit.IOSCSIArchitectureModelFamily	2.6.5
    com.apple.iokit.IOUSBUserClient	4.0.0
    com.apple.iokit.IOFireWireFamily	4.2.6
    com.apple.iokit.IOUSBFamily	4.0.2
    com.apple.iokit.IOAHCIFamily	2.0.4
    com.apple.driver.AppleEFIRuntime	1.3.0
    com.apple.iokit.IOHIDFamily	1.6.4
    com.apple.iokit.IOSMBusFamily	1.1
    com.apple.security.TMSafetyNet	6
    com.apple.kext.AppleMatch	1.0.0d1
    com.apple.driver.DiskImages	283
    com.apple.iokit.IOStorageFamily	1.6.1
    com.apple.driver.AppleACPIPlatform	1.3.2
    com.apple.iokit.IOPCIFamily	2.6
    com.apple.iokit.IOACPIFamily	1.3.0
    Model: iMac11,1, BootROM IM111.0034.B02, 4 processors, Intel Core i5, 2.66 GHz, 8 GB, SMC 1.54f36
    Graphics: ATI Radeon HD 4850, ATI Radeon HD 4850, PCIe, 512 MB
    Memory Module: global_name
    AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 2.1.9.8.1
    Bluetooth: Version 2.3.3f8, 2 service, 19 devices, 1 incoming serial ports
    Network Service: AirPort, AirPort, en1
    Serial ATA Device: ST31000528ASQ, 931.51 GB
    Serial ATA Device: HL-DT-ST DVDRW  GA11N
    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfa100000
    USB Device: External HDD, 0x1058  (Western Digital Technologies, Inc.), 0x1003, 0xfa140000
    USB Device: USB Optical Mouse, 0x0461  (Primax Electronics), 0x4d0f, 0xfa130000
    USB Device: Internal Memory Card Reader, 0x05ac  (Apple Inc.), 0x8403, 0xfa120000
    USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000
    USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8215, 0xfa111000
    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfd100000
    USB Device: USB2.0 Hub, 0x05e3  (Genesys Logic, Inc.), 0x0608, 0xfd140000
    USB Device: Plantronics .Audio 626 DSP, 0x047f  (Plantronics, Inc.), 0xc006, 0xfd144000
    USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8502, 0xfd110000
    USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0xfd120000
    
    The application Steam has crashed from time to time when trying to download the game (installing cache..or preparing to download I should say), or apply updates to the Steam application, but I didn't really pay it much attention since the Mac version of Steam didn't have many games I cared to play.
     

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