What Cause my Kernel Panic?

[Ralphalph]

I had a serious kernal panic this morning on my late 2008 Macbook Pro, running OSX Mountain Lion (10.8.2). Below is the log. Any input on what caused this problem would be greatly appreciated. I use this computer for business, so if I can mitigate an impending failure I will need to do so. The error occurred after I restarted my machine because Safari was perfornign slowly, and cursor and text input had become laggy and less responsive. The computer booted to the login screen, but then upon login I was twice confronted with a string of white text on black background generated over the login screen, and followed by an automatic reboot. On the third reboot the computer started normally, after I declined a prompt to reopen open programs.

Thanks:

Kernel Panic Log:

Wed Dec 12 09:40:43 2012
panic(cpu 0 caller 0xffffff800d6b7bd5): Kernel trap at 0xffffff800da00c2d, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff8027951ca8, CR3: 0x0000000010369000, CR4: 0x0000000000000660
RAX: 0xffffff800da30930, RBX: 0xffffff801f8bca00, RCX: 0x0000000001000001, RDX: 0xffffff801f70a280
RSP: 0xffffff80f4c2bed0, RBP: 0xffffff80f4c2bef0, RSI: 0xffffff801f951ca0, RDI: 0x0000000000000000
R8: 0x0000000000000000, R9: 0x0000000000000006, R10: 0xffffff801f72d7c0, R11: 0x00000000ffffffff
R12: 0xffffff7f8dd51138, R13: 0xffffff801f8bca00, R14: 0xffffff801f732940, R15: 0x0000000001000001
RFL: 0x0000000000010286, RIP: 0xffffff800da00c2d, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0xffffff8027951ca8, Error code: 0x0000000000000000, Fault CPU: 0x0


Backtrace (CPU 0), Frame : Return Address
0xffffff80f4c2bb70 : 0xffffff800d61d626
0xffffff80f4c2bbe0 : 0xffffff800d6b7bd5
0xffffff80f4c2bdb0 : 0xffffff800d6ce4ed
0xffffff80f4c2bdd0 : 0xffffff800da00c2d
0xffffff80f4c2bef0 : 0xffffff800da42430
0xffffff80f4c2bf30 : 0xffffff800da2d166
0xffffff80f4c2bf70 : 0xffffff800da31e99
0xffffff80f4c2bfb0 : 0xffffff800d6b26b7


BSD process name corresponding to current thread: kernel_task


Mac OS version:
Not yet set


Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide: 0x000000000d400000
Kernel text base: 0xffffff800d600000
System model name: MacBookPro5,1 (Mac-F42D86C8)


System uptime in nanoseconds: 2749817125
last loaded kext at 2439044076: com.apple.iokit.IOAHCIBlockStorage 2.2.2 (addr 0xffffff7f8eaf7000, size 126976)
loaded kexts:
com.apple.iokit.IOAHCIBlockStorage 2.2.2
com.apple.driver.AppleAHCIPort 2.4.1
com.apple.nvenet 2.0.19
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.driver.AirPort.B
MacBook Pro (15-inch Late 2008), OS X Mountain Lion (10.8.2), 8GB RAM, aftermarket SSD + 500GB HD

 

[Ralphalph]

Another One

Got another one this am. Any thoughts?

Tue Dec 18 08:42:14 2012
panic(cpu 0 caller 0xffffff8005eb7bd5): Kernel trap at 0xffffff7f86e99578, type 13=general protection, registers:
CR0: 0x000000008001003b, CR2: 0xffffff80e7add000, CR3: 0x0000000008b2d000, CR4: 0x0000000000000660
RAX: 0x00000000163a7b4e, RBX: 0x01ffff8017fd3000, RCX: 0x000000006b33dce4, RDX: 0x0000000000000000
RSP: 0xffffff80ed2e3e50, RBP: 0xffffff80ed2e3e60, RSI: 0x0000000000000002, RDI: 0xffffff8006401ef0
R8: 0x0000000000000001, R9: 0x00000000000003ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff
R12: 0xffffff8017fd3000, R13: 0xffffff8017bece00, R14: 0xffffff8017f92500, R15: 0x0000000000000001
RFL: 0x0000000000010246, RIP: 0xffffff7f86e99578, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0xffffff80e7add000, Error code: 0x0000000000000000, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address
0xffffff80ed2e3af0 : 0xffffff8005e1d626
0xffffff80ed2e3b60 : 0xffffff8005eb7bd5
0xffffff80ed2e3d30 : 0xffffff8005ece4ed
0xffffff80ed2e3d50 : 0xffffff7f86e99578
0xffffff80ed2e3e60 : 0xffffff800623181b
0xffffff80ed2e3ea0 : 0xffffff800623133e
0xffffff80ed2e3f30 : 0xffffff800622d2d0
0xffffff80ed2e3f70 : 0xffffff8006231e99
0xffffff80ed2e3fb0 : 0xffffff8005eb26b7
Kernel Extensions in backtrace:
com.apple.driver.AppleUSBOHCI(5.2.5)[1C94C4BC-B05C-36D4-B1A2-B0BE04A5C620]@0xffffff7f86e98000->0xffffff7f86eaafff
dependency: com.apple.iokit.IOUSBFamily(5.4.0)[C3094550-7F58-3933-A4F7-CD33AE83F8B9]@0xffffff7f86d42000
dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffffff7f864f9000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
Not yet set

Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide: 0x0000000005c00000
Kernel text base: 0xffffff8005e00000
System model name: MacBookPro5,1 (Mac-F42D86C8)

System uptime in nanoseconds: 1759372411
last loaded kext at 344406141: com.apple.iokit.IOAHCIBlockStorage 2.2.2 (addr 0xffffff7f872ab000, size 126976)
loaded kexts:
com.apple.iokit.IOAHCIBlockStorage 2.2.2
com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.driver.AirPort.Brcm4331 602.15.22
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleUSBHub 5.2.5
com.apple.driver.AppleEFINVRAM 1.6.1
com.apple.driver.AppleAHCIPort 2.4.1
com.apple.nvenet 2.0.19
com.apple.driver.AppleUSBEHCI 5.4.0
com.apple.driver.AppleUSBOHCI 5.2.5
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.7
com.apple.driver.AppleACPIButtons 1.6
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.6
com.apple.driver.AppleAPIC 1.6
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IO80211Family 500.15
com.apple.iokit.IOUSBUserClient 5.2.5
com.apple.iokit.IOAHCIFamily 2.2.1
com.apple.iokit.IONetworkingFamily 3.0
com.apple.iokit.IOUSBFamily 5.4.0
com.apple.driver.NVSMU 2.2.9
com.apple.driver.AppleEFIRuntime 1.6.1
com.apple.iokit.IOHIDFamily 1.8.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 220
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.DiskImages 344
com.apple.iokit.IOStorageFamily 1.8
com.apple.driver.AppleKeyStore 28.21
com.apple.driver.AppleACPIPlatform 1.6
com.apple.iokit.IOPCIFamily 2.7.2
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0

 

[Ralphalph]

The Macbook Pro 15" 5,1 officially supports only 4GB of RAM, but will accept 8GB. This appears to be what was causing the issues I identify above. When I switched the RAM modules out for the 4GB (2x2) ones, no more errors!