It's not only applied to any specific activity, that's the tricky part. For example right now, it was related to me putting a header image on my wordpress blog.
Here's the crash log, maybe you are better at understanding this than me?
Anonymous UUID: 82318534-7C07-73F7-C68B-4EEE7F1CE09B
Thu Aug 20 11:28:48 2015
*** Panic Report ***
panic(cpu 1 caller 0xffffff7f8a64fc1b): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff8123ae9000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.10.25/src/AppleMuxControl/kext/GPUPanic.cpp:127
Backtrace (CPU 1), Frame : Return Address
0xffffff811170aca0 : 0xffffff800792ad21
0xffffff811170ad20 : 0xffffff7f8a64fc1b
0xffffff811170ae00 : 0xffffff7f88584b9f
0xffffff811170aec0 : 0xffffff7f8864e18e
0xffffff811170af00 : 0xffffff7f8864e1fe
0xffffff811170af70 : 0xffffff7f888cd056
0xffffff811170b0a0 : 0xffffff7f8867182d
0xffffff811170b0c0 : 0xffffff7f8858b5f1
0xffffff811170b170 : 0xffffff7f885890fc
0xffffff811170b370 : 0xffffff7f8858aa4b
0xffffff811170b440 : 0xffffff7f89c287aa
0xffffff811170b520 : 0xffffff7f89c25a7c
0xffffff811170b5a0 : 0xffffff7f89c267df
0xffffff811170b620 : 0xffffff7f89c26e56
0xffffff811170b760 : 0xffffff7f89c278fb
0xffffff811170b890 : 0xffffff7f89c5abce
0xffffff811170b8d0 : 0xffffff7f89c5b923
0xffffff811170b910 : 0xffffff7f89c5534c
0xffffff811170ba70 : 0xffffff7f89c55c5c
0xffffff811170bab0 : 0xffffff7f89c51213
0xffffff811170bae0 : 0xffffff7f89c343a4
0xffffff811170bb30 : 0xffffff8007f00a12
0xffffff811170bb60 : 0xffffff8007f01609
0xffffff811170bbc0 : 0xffffff8007efed83
0xffffff811170bd00 : 0xffffff80079e1307
0xffffff811170be10 : 0xffffff800792ef8c
0xffffff811170be40 : 0xffffff80079139f3
0xffffff811170be90 : 0xffffff800792429d
0xffffff811170bf10 : 0xffffff8007a0231a
0xffffff811170bfb0 : 0xffffff8007a344c6
Kernel Extensions in backtrace:
com.apple.nvidia.classic.NVDAResmanTesla(10.0)[796AE430-39FB-3255-8161-D52AFA28EE2B]@0xffffff7f88534000->0xffffff7f8879dfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[BDA92C3B-AD86-33E5-A7F1-1603465350A7]@0xffffff7f88124000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[7372D580-6DDE-3457-B043-49B8447FC9D2]@0xffffff7f88524000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[8922721D-5517-3883-BD3A-57422D0244A0]@0xffffff7f884dd000
com.apple.nvidia.classic.NVDANV50HalTesla(10.0)[7FE40648-F15F-3E18-91E2-FDDDF4CDA355]@0xffffff7f887a8000->0xffffff7f88a51fff
dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[796AE430-39FB-3255-8161-D52AFA28EE2B]@0xffffff7f88534000
dependency: com.apple.iokit.IOPCIFamily(2.9)[BDA92C3B-AD86-33E5-A7F1-1603465350A7]@0xffffff7f88124000
com.apple.GeForceTesla(10.0)[59758864-B0B8-3ED7-B4B9-DBBFAC568F35]@0xffffff7f89bf7000->0xffffff7f89cc4fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[BDA92C3B-AD86-33E5-A7F1-1603465350A7]@0xffffff7f88124000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[7372D580-6DDE-3457-B043-49B8447FC9D2]@0xffffff7f88524000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[8922721D-5517-3883-BD3A-57422D0244A0]@0xffffff7f884dd000
dependency: com.apple.nvidia.classic.NVDAResmanTesla(10.0.0)[796AE430-39FB-3255-8161-D52AFA28EE2B]@0xffffff7f88534000
com.apple.driver.AppleMuxControl(3.10.25)[752C63EA-73E8-39BC-8225-3A97D0C403BF]@0xffffff7f8a641000->0xffffff7f8a654fff
dependency: com.apple.driver.AppleGraphicsControl(3.10.25)[3DC2F93F-5197-3B16-8975-0142E7A0474B]@0xffffff7f8a639000
dependency: com.apple.iokit.IOACPIFamily(1.4)[70E2B65E-A91A-3522-A1A0-79FD63EABB4C]@0xffffff7f8846b000
dependency: com.apple.iokit.IOPCIFamily(2.9)[BDA92C3B-AD86-33E5-A7F1-1603465350A7]@0xffffff7f88124000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[8922721D-5517-3883-BD3A-57422D0244A0]@0xffffff7f884dd000
dependency: com.apple.driver.AppleBacklightExpert(1.1.0)[65E3187E-949B-36E9-BA33-1B13ABB0581A]@0xffffff7f8a63c000
BSD process name corresponding to current thread: com.apple.WebKit
Mac OS version:
14F27
Kernel version:
Darwin Kernel Version 14.5.0: Wed Jul 29 02:26:53 PDT 2015; root:xnu-2782.40.9~1/RELEASE_X86_64
Kernel UUID: 58F06365-45C7-3CA7-B80D-173AFD1A03C4
Kernel slide: 0x0000000007600000
Kernel text base: 0xffffff8007800000
__HIB text base: 0xffffff8007700000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 420021928658
last loaded kext at 7979063609: com.apple.filesystems.autofs 3.0 (addr 0xffffff7f89e32000, size 45056)
loaded kexts:
com.radiosilenceapp.nke.PrivateEye 1
com.globaldelight.driver.Boom2Device 1.1
com.globaldelight.driver.BoomDevice 1.1
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.iokit.IOBluetoothSerialManager 4.3.6f3
com.apple.driver.AGPM 110.19.6
com.apple.driver.AppleTyMCEDriver 1.0.2d2
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 272.18.1
com.apple.driver.AppleHDAHardwareConfigDriver 272.18.1
com.apple.driver.AppleHDA 272.18.1
com.apple.driver.AudioAUUC 1.70
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.iokit.IOBluetoothUSBDFU 4.3.6f3
com.apple.driver.AppleHV 1
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleFIVRDriver 4.1.0
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.6f3
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleMuxControl 3.10.25
com.apple.driver.AppleBacklight 170.7.4
com.apple.driver.AppleMCCSControl 1.2.12
com.apple.GeForceTesla 10.0.0
com.apple.driver.AppleIntelHDGraphics 10.0.0
com.apple.driver.AppleIntelHDGraphicsFB 10.0.0
com.apple.nvidia.NVDAStartup 10.0.4
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBTCKeyEventDriver 240.2
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.driver.AppleIRController 327.5
com.apple.driver.CoreStorageFsck 471.30.1
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 36
com.apple.driver.AppleUSBCardReader 3.5.5
com.apple.iokit.SCSITaskUserClient 3.7.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.iokit.IOAHCIPassThrough 1.0.3
com.apple.driver.AirPort.Brcm4331 800.20.24
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.AppleFWOHCI 5.5.2
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AirPort.Brcm4360 930.37.3
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AppleUSBUHCI 656.4.1
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.AppleGraphicsDeviceControl 3.10.25
com.apple.driver.DspFuncLib 272.18.1
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IOSurface 97.4
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.6f3
com.apple.iokit.IOBluetoothFamily 4.3.6f3
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.AppleGraphicsControl 3.10.25
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0
com.apple.nvidia.classic.NVDAResmanTesla 10.0.0
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.AppleHDAController 272.18.1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 272.18.1
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.AppleUSBMultitouch 245.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.CoreStorage 471.30.1
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.5
com.apple.iokit.IOUSBMassStorageClass 3.7.2
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5
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.IOSCSIArchitectureModelFamily 3.7.5
com.apple.iokit.IOFireWireFamily 4.5.8
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IO80211Family 730.60
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IOUSBFamily 720.4.4
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 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 398
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
com.apple.kec.Libm 1
Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i5, 2.4 GHz, 8 GB, SMC 1.58f17
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x859B, 0x435435313236344243313036372E4D313646
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x859B, 0x435435313236344243313036372E4D313646
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.24)
Bluetooth: Version 4.3.6f3 16238, 3 services, 27 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: OWC Mercury EXTREME Pro SSD, 480,1 GB
Serial ATA Device: MATSHITADVD-R UJ-898
USB Device: Hub
USB Device: BRCM2070 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Internal Memory Card Reader
USB Device: Apple Internal Keyboard / Trackpad
USB Device: Hub
USB Device: IR Receiver
USB Device: Built-in iSight
Thunderbolt Bus: