MacBook Pro restarted by itself?

i was just using my laptop and the whole screen turned grey and then it restarted.

it then had a message that said something like, there was an issue with the computer and it had to restart.

i'v never experienced this before, i have a base model 15 inch 2011 macbook pro.

i did a google, i think its a 'panic'?

i believe i'v got the report here, could anyone tell me if this is a hardware problem or just a software freak out?

Sun Nov 25 05:13:48 2012
panic(cpu 6 caller 0xffffff8024af8e19): "mount_common(): mount of udf filesystem failed with 6, but vnode list is not empty."@/SourceCache/xnu/xnu-2050.18.24/bsd/vfs/vfs_syscalls.c:936
Backtrace (CPU 6), Frame : Return Address
0xffffff803b61b720 : 0xffffff8024a1d626
0xffffff803b61b790 : 0xffffff8024af8e19
0xffffff803b61bae0 : 0xffffff8024af97fa
0xffffff803b61bf10 : 0xffffff8024af8fd9
0xffffff803b61bf50 : 0xffffff8024de182a
0xffffff803b61bfb0 : 0xffffff8024aced33

BSD process name corresponding to current thread: mount_udf

Mac OS version:
12C60

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: 0x0000000024800000
Kernel text base: 0xffffff8024a00000
System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 44856360605915
last loaded kext at 44843677720259: com.apple.driver.AppleUSBCDC 4.1.22 (addr 0xffffff7fa7074000, size 16384)
last unloaded kext at 41861970602459: com.Logitech.Control Center.HID Driver 3.6.0 (addr 0xffffff7fa7074000, size 286720)
loaded kexts:
com.parallels.kext.prl_vnic 7.0 15107.796624
com.parallels.kext.prl_netbridge 7.0 15107.796624
com.parallels.kext.prl_hid_hook 7.0 15107.796624
com.parallels.kext.prl_hypervisor 7.0 15107.796624
com.parallels.kext.prl_usb_connect 7.0 15107.796624
net.telestream.driver.TelestreamAudio 1.0.6
com.apple.driver.AppleUSBCDC 4.1.22
com.apple.driver.AppleIntelProfile 97
com.apple.filesystems.udf 2.3
com.apple.filesystems.smbfs 1.8
com.apple.filesystems.afpfs 10.0
com.apple.nke.asp_tcp 7.0.0
com.apple.driver.AppleBluetoothMultitouch 75.15
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.0.9f33
com.apple.filesystems.ntfs 3.10
com.apple.driver.AGPM 100.12.69
com.apple.driver.AppleMikeyHIDDriver 122
com.apple.driver.AudioAUUC 1.60
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleMikeyDriver 2.3.1f2
com.apple.driver.AppleHDA 2.3.1f2
com.apple.driver.SMCMotionSensor 3.0.2d6
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleLPC 1.6.0
com.apple.driver.AppleSMCLMU 2.0.2d0
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.2.11
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.0.9f33
com.apple.driver.AppleMuxControl 3.2.11
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMCCSControl 1.0.33
com.apple.kext.AMDFramebuffer 8.0.0
com.apple.driver.AppleIntelHD3000Graphics 8.0.0
com.apple.driver.AppleIntelSNBGraphicsFB 8.0.0
com.apple.AMDRadeonAccelerator 1.0.0
com.apple.driver.AppleUSBTCButtons 235.4
com.apple.driver.AppleIRController 320.15
com.apple.driver.AppleUSBTCKeyboard 235.4
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.iokit.SCSITaskUserClient 3.5.1
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.2.2
com.apple.driver.AppleUSBHub 5.2.5
com.apple.driver.AppleSDXC 1.2.2
com.apple.driver.AppleFWOHCI 4.9.6
com.apple.iokit.AppleBCM5701Ethernet 3.2.5b3
com.apple.driver.AirPort.Brcm4331 602.15.22
com.apple.driver.AppleAHCIPort 2.4.1
com.apple.driver.AppleUSBEHCI 5.4.0
com.apple.driver.AppleEFINVRAM 1.6.1
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 1.6
com.apple.driver.AppleRTC 1.5
com.apple.driver.AppleHPET 1.7
com.apple.driver.AppleSMBIOS 1.9
com.apple.driver.AppleACPIEC 1.6
com.apple.driver.AppleAPIC 1.6
com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
com.apple.nke.applicationfirewall 4.0.39
com.apple.security.quarantine 2
com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
com.apple.driver.AppleProfileTimestampAction 97
com.apple.driver.AppleProfileThreadInfoAction 97
com.apple.driver.AppleProfileRegisterStateAction 97
com.apple.driver.AppleProfileReadCounterAction 97
com.apple.driver.AppleProfileKEventAction 97
com.apple.driver.AppleProfileCallstackAction 97
com.apple.iokit.AppleProfileFamily 97
com.apple.iokit.IOUSBMassStorageClass 3.5.0
com.apple.security.SecureRemotePassword 1.0
com.apple.driver.AppleMultitouchDriver 235.28
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 10.0.6
com.apple.iokit.IOSurface 86.0.3
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.DspFuncLib 2.3.1f2
com.apple.iokit.IOAudioFamily 1.8.9fc10
com.apple.kext.OSvKernDSPLib 1.6
com.apple.driver.AppleSMC 3.1.4d2
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.2.0d16
com.apple.driver.AppleSMBusPCI 1.0.10d0
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.0.9f33
com.apple.driver.AppleGraphicsControl 3.2.11
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.AppleSMBusController 1.0.10d0
com.apple.iokit.IOAcceleratorFamily 19.0.26
com.apple.iokit.IONDRVSupport 2.3.5
com.apple.kext.AMD6000Controller 8.0.0
com.apple.kext.AMDSupport 8.0.0
com.apple.driver.AppleHDAController 2.3.1f2
com.apple.iokit.IOGraphicsFamily 2.3.5
com.apple.iokit.IOHDAFamily 2.3.1f2
com.apple.driver.AppleThunderboltDPInAdapter 1.8.5
com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.5
com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.5
com.apple.driver.AppleUSBMultitouch 235.7
com.apple.driver.IOBluetoothHIDDriver 4.0.9f33
com.apple.iokit.IOBluetoothFamily 4.0.9f33
com.apple.iokit.IOUSBHIDDriver 5.2.5
com.apple.driver.AppleUSBMergeNub 5.2.5
com.apple.driver.AppleUSBComposite 5.2.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.1
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1
com.apple.driver.AppleThunderboltNHI 1.6.0
com.apple.iokit.IOThunderboltFamily 2.1.1
com.apple.iokit.IOUSBUserClient 5.2.5
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOEthernetAVBController 1.0.2b1
com.apple.iokit.IO80211Family 500.15
com.apple.iokit.IONetworkingFamily 3.0
com.apple.iokit.IOAHCIFamily 2.2.1
com.apple.iokit.IOUSBFamily 5.4.0
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

i was using handbrake to initiate a new conversion of an mkv, i did one not long before, i am aware that handbrake leaks my 16gigs of ram to 0 free after a conversion (takes a few hours). usually i purge my ram before a compression but not always, this time i didn't.

after i did that, i went to eject the disc out of my external blu-ray drive, by dragging the disc to the trash can. but my blu ray drive did not eject. so i tried unplugging the 2nd usb (power only) and plugging it back in to re recognise the disc & device, to then try ejecting it. didnt work, so i tried unplugging the data usb and plugging it back in, which worked. then i could eject this disc. i cant actually remember if i did this first or started the compression first. im not sure which the panic occurred during.

im wondering if it was the ram that freaked out or if my mbp is physically dying?

thanks to anyone in advance who can help me.

yusukeaoki said:

Its called Kernel Panic.
It sometimes occurs so I wouldnt be too worried.
If it continues to do it over and over, go to the genius.

Click to expand...

well, its the first time iv experienced it, i got this laptop in March '12,

and i am a very active user.

T5BRICK said:

Have you updated any hardware or software very recently?

Click to expand...

no, not to my knowledge, its atleast been a week i believe since iv updated anything. and those updates were likely from the macapp store, some minor one maybe, but whatever update it is, i don't believe iv been using the app that it wouldve updated.

my app usage has been very repetitive for a long time:

mail
itunes
dropbox
safari
adium
notes
Handbrake
make mkv
subler
metaz

others on off:

calander
contacts
reminders
iphoto.
mac app store

my last hardware updates were months ago. (ssd, 16gb ram)

when i first upgraded to mountain lion, throughout 10.8.1, i was experiencing a known freeze issue for some users, but it seems to have dissappeared since 10.8.2. or atleast over time. the last time i experienced that freeze was probably september.

i was running steam during the panic, which i dont use often, i know they updated that within a month ago.