Kernal Panics and how to understand them

[Stubakka]

Hello All, Recently i have been troubleshooting an issue with a 24 inch iMac running 10.9.2 Originally the issue was that the system would not wake from sleep if usb devices (hard drives)were connected to it, I ran Apple ASD on it and it would indeed Fail with these drives connected via USB on the interactive Sleep test. However all other automated hardware and memory tests passed.

Recently the user reported that the system shut down and went "WHITE" and rebooted. I looked in console and found that the system had a kernel Panic, Usually in the backtrace it would point me toward a process or App that caused it but this time its different. Any help is appreciated

****
Anonymous UUID: 7F92CF9E-A85C-E801-99EA-6718508125DA

Thu Apr 17 11:17:04 2014
panic(cpu 2 caller 0xffffff801aadbe2e): Kernel trap at 0xffffff801aac6674, type 13=general protection, registers:
CR0: 0x000000008001003b, CR2: 0x00000000013491f0, CR3: 0x000000001d676000, CR4: 0x00000000000206e0
RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0x2000000000000000, RDX: 0xffffff802342d000
RSP: 0xffffff809a1dbd50, RBP: 0xffffff809a1dbdb0, RSI: 0x0000000000000020, RDI: 0x0000000000042fd0
R8: 0x0000000000000000, R9: 0x000000000006a546, R10: 0xffffff801b0fdbb8, R11: 0xffffffffffffffff
R12: 0x0000000110422000, R13: 0xffffffffffffffdf, R14: 0xffffff8023c8ca00, R15: 0x000000000000002b
RFL: 0x0000000000010246, RIP: 0xffffff801aac6674, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0x00000000013491f0, Error code: 0x0000000000000000, Fault CPU: 0x2

Backtrace (CPU 2), Frame : Return Address
0xffffff80946dddf0 : 0xffffff801aa22fa9 0xffffff80946dde70 : 0xffffff801aadbe2e 0xffffff80946de040 : 0xffffff801aaf3326 0xffffff80946de060 : 0xffffff801aac6674 0xffffff809a1dbdb0 : 0xffffff801aa96460 0xffffff809a1dbf70 : 0xffffff801aa98e22 0xffffff809a1dbfb0 : 0xffffff801aad6ff7

BSD process name corresponding to current thread: kernel_task

Mac OS version:
13C64

Kernel version:
Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64
Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953
Kernel slide: 0x000000001a800000
Kernel text base: 0xffffff801aa00000
System model name: iMac11,3 (Mac-F2238BAE)

System uptime in nanoseconds: 7864043900136
last loaded kext at 4827840140231: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f9d009000, size 20480)
last unloaded kext at 4905808103324: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f9d009000, size 16384)
loaded kexts:
com.apple.filesystems.smbfs 2.0.1
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 100.14.15
com.apple.driver.AppleBluetoothMultitouch 80.14
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.2.3f10
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 2.6.0f1
com.apple.driver.AppleHDA 2.6.0f1
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleBacklight 170.3.5
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleMCCSControl 1.1.12
com.apple.kext.AMDFramebuffer 1.2.0
com.apple.AMDRadeonX3000 1.2.0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.3f10
com.apple.kext.AMD5000Controller 1.2.0
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.5.1
com.apple.iokit.SCSITaskUserClient 3.6.6
com.apple.driver.AppleUSBCardReader 3.4.1
com.apple.driver.AppleIRController 325.7
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.AppleUSBHub 666.4.0
com.apple.driver.AppleFWOHCI 4.9.9
com.apple.driver.AirPort.Atheros40 700.74.5
com.apple.driver.AppleAHCIPort 3.0.0
com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2
com.apple.driver.AppleUSBEHCI 660.4.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 216.0.0
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 216.0.0
com.apple.driver.AppleBluetoothHIDKeyboard 170.15
com.apple.driver.AppleHIDKeyboard 170.15
com.apple.driver.IOBluetoothHIDDriver 4.2.3f10
com.apple.driver.AppleMultitouchDriver 245.13
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.driver.DspFuncLib 2.6.0f1
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOAudioFamily 1.9.5fc2
com.apple.kext.OSvKernDSPLib 1.14
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.IOPlatformPluginFamily 5.7.0d10
com.apple.driver.AppleSMBusController 1.0.11d1
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOAcceleratorFamily 98.14
com.apple.iokit.IOSurface 91
com.apple.iokit.IOBluetoothFamily 4.2.3f10
com.apple.driver.AppleSMC 3.1.8
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.3f10
com.apple.driver.AppleHDAController 2.6.0f1
com.apple.iokit.IOHDAFamily 2.6.0f1
com.apple.kext.AMDSupport 1.2.0
com.apple.AppleGraphicsDeviceControl 3.4.35
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.6
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.6.1
com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.6
com.apple.iokit.IOUSBMassStorageClass 3.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.6
com.apple.iokit.IOUSBHIDDriver 660.4.0
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.driver.AppleUSBComposite 656.4.1
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IO80211Family 630.35
com.apple.iokit.IOUSBUserClient 660.4.2
com.apple.iokit.IOAHCIFamily 2.6.5
com.apple.iokit.IOEthernetAVBController 1.0.3b4
com.apple.driver.mDNSOffloadUserClient 1.0.1b5
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOUSBFamily 675.4.0
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 278.11
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 23
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0 *

[ClassicII]

st loaded kext at 4827840140231: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f9d009000, size 20480)
last unloaded kext at 4905808103324: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f9d009000, size 16384)

Looks like its that drive again did you say that when it panicked it had the drive plugged in ?

[Stubakka]

It did. Since that panic I have installed a seagate storage driver and ran a ram test. Waiting to see of it happens again.