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Panic (system crashes) log: Source: /Library/Logs/DiagnosticReports/Kernel_2016-01-28-142043_Mikes-MacBook-Pro.panic Size: 10 KB (10,478 bytes) Last Modified: 1/28/16, 2:22 PM Recent Contents: Anonymous UUID: 147634F0-D2B6-051F-48A9-E1AF53C0F299 Thu Jan 28 14:20:39 2016 *** Panic Report *** panic(cpu 0 caller 0xffffff7fa284dbd5): "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 0xffffff90cac87000 0x0a5480a2, D0, P3/4\n"@/Library/Caches/com.apple.xbs/Sources/AppleGraphicsControl/AppleGraphicsControl-3.12.6/src/AppleMuxControl/kext/GPUPanic.cpp:127 Backtrace (CPU 0), Frame : Return Address 0xffffff80b896b0a0 : 0xffffff801f6df792 0xffffff80b896b120 : 0xffffff7fa284dbd5 0xffffff80b896b200 : 0xffffff7fa03ebfa4 0xffffff80b896b2c0 : 0xffffff7fa04b8add 0xffffff80b896b300 : 0xffffff7fa04b8b48 0xffffff80b896b380 : 0xffffff7fa073da23