Macbook Pro suddenly shuts down! Help interpret System Logs

Hi all,

My macbook Pro is mid 2012 model with 4 gb ram. I bought it this May, and since July i have noticed it randomly switch off (with sometime restart but not always). This takes place anytime, with or without the charger, and with no heavy software running.

I did some research online and ran the AHT. the results said hardware is fine. I also should mention that it doesnt not excessively heat up at this point and neither can i hear the fans. Im quite baffled as to why this is happening.

I did some scouting around and found my console system logs. I think iv found the moment it shut off and i am attaching those logs below.

03/08/15 6:38:48.846 pm WindowServer[133]: Session 257 released (1 references)

03/08/15 6:38:48.000 pm kernel[0]: en2: promiscuous mode enable succeeded

03/08/15 6:38:48.000 pm kernel[0]: en1: BSSID changed to 00:18:02:8e:3e:74

03/08/15 6:38:48.000 pm kernel[0]: en1: channel changed to 8

03/08/15 6:38:48.867 pm WindowServer[133]: Session 257 retained (2 references)

03/08/15 6:38:48.869 pm WindowServer[133]: init_page_flip: page flip mode is on

03/08/15 6:38:49.069 pm WindowServer[133]: Found 1 modes for display 0x00000000 [1, 0]

03/08/15 6:38:49.073 pm WindowServer[133]: Found 1 modes for display 0x00000000 [1, 0]

03/08/15 6:38:49.075 pm WindowServer[133]: Found 1 modes for display 0x00000000 [1, 0]

03/08/15 6:38:49.079 pm WindowServer[133]: Found 15 modes for display 0x00000000 [15, 0]

03/08/15 6:38:49.080 pm WindowServer[133]: mux_initialize: Couldn't find any matches

03/08/15 6:38:49.085 pm WindowServer[133]: Found 15 modes for display 0x00000000 [15, 0]

03/08/15 6:38:49.088 pm WindowServer[133]: Found 1 modes for display 0x00000000 [1, 0]

03/08/15 6:38:49.089 pm WindowServer[133]: Found 1 modes for display 0x00000000 [1, 0]

03/08/15 6:38:49.089 pm WindowServer[133]: Found 1 modes for display 0x00000000 [1, 0]

03/08/15 6:38:49.123 pm WindowServer[133]: WSMachineUsesNewStyleMirroring: true

03/08/15 6:38:49.123 pm WindowServer[133]: Display 0x042730c0: GL mask 0x1; bounds (0, 0)[1280 x 800], 15 modes available

Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model 9cc3, S/N 0, Unit 0, Rotation 0

UUID 0x68fe312b5ef0e0a1bcd88890b73c7b3a

03/08/15 6:38:49.123 pm WindowServer[133]: Display 0x003f0040: GL mask 0x10; bounds (0, 0)[4096 x 2160], 2 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.123 pm WindowServer[133]: Display 0x003f003f: GL mask 0x8; bounds (0, 0)[0 x 0], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.124 pm WindowServer[133]: Display 0x003f003e: GL mask 0x4; bounds (0, 0)[0 x 0], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.124 pm WindowServer[133]: Display 0x003f003d: GL mask 0x2; bounds (0, 0)[0 x 0], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.124 pm WindowServer[133]: Set a breakpoint at CGSLogError to catch errors as they are logged.

03/08/15 6:38:49.124 pm WindowServer[133]: WSSetWindowTransform: Singular matrix

03/08/15 6:38:49.125 pm WindowServer[133]: WSSetWindowTransform: Singular matrix

03/08/15 6:38:49.125 pm WindowServer[133]: WSSetWindowTransform: Singular matrix

03/08/15 6:38:49.128 pm WindowServer[133]: Display 0x042730c0: GL mask 0x1; bounds (0, 0)[1280 x 800], 15 modes available

Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model 9cc3, S/N 0, Unit 0, Rotation 0

UUID 0x68fe312b5ef0e0a1bcd88890b73c7b3a

03/08/15 6:38:49.128 pm WindowServer[133]: Display 0x003f0040: GL mask 0x10; bounds (2304, 0)[1 x 1], 2 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.128 pm WindowServer[133]: Display 0x003f003f: GL mask 0x8; bounds (2305, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.128 pm WindowServer[133]: Display 0x003f003e: GL mask 0x4; bounds (2306, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.129 pm WindowServer[133]: Display 0x003f003d: GL mask 0x2; bounds (2307, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

03/08/15 6:38:49.129 pm WindowServer[133]: CGXPerformInitialDisplayConfiguration

03/08/15 6:38:49.129 pm WindowServer[133]: Display 0x042730c0: Unit 0; Vendor 0x610 Model 0x9cc3 S/N 0 Dimensions 11.26 x 7.05; online enabled built-in, Bounds (0,0)[1280 x 800], Rotation 0, Resolution 1

03/08/15 6:38:49.129 pm WindowServer[133]: Display 0x003f0040: Unit 4; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2304,0)[1 x 1], Rotation 0, Resolution 1

03/08/15 6:38:49.129 pm WindowServer[133]: Display 0x003f003f: Unit 3; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2305,0)[1 x 1], Rotation 0, Resolution 1

03/08/15 6:38:49.129 pm WindowServer[133]: Display 0x003f003e: Unit 2; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2306,0)[1 x 1], Rotation 0, Resolution 1

03/08/15 6:38:49.129 pm WindowServer[133]: Display 0x003f003d: Unit 1; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2307,0)[1 x 1], Rotation 0, Resolution 1

03/08/15 6:38:50.000 pm kernel[0]: IO80211AWDLPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from SUSPENDED to AUTO

03/08/15 6:38:50.000 pm kernel[0]: IO80211AWDLPeerManager::setAwdlAutoMode Resuming AWDL

03/08/15 6:38:50.853 pm com.apple.xpc.launchd[1]: (com.apple.FileSyncAgent.PHD.isRunning) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:38:50.855 pm com.apple.xpc.launchd[1]: (com.apple.mbloginhelper.user) This key does not do anything: OnDemand

03/08/15 6:38:50.855 pm com.apple.xpc.launchd[1]: (com.apple.mbpluginhost.user) This key does not do anything: OnDemand

03/08/15 6:38:50.859 pm com.apple.xpc.launchd[1]: (com.apple.secd) This key does not do anything: OnDemand

03/08/15 6:38:50.859 pm com.apple.xpc.launchd[1]: (com.apple.secd) The ServiceIPC key is no longer respected. Please remove it.

03/08/15 6:38:50.860 pm com.apple.xpc.launchd[1]: (com.apple.speech.speechsynthesisd) This key does not do anything: OnDemand

03/08/15 6:38:50.861 pm com.apple.xpc.launchd[1]: (com.apple.TrustEvaluationAgent) This key does not do anything: OnDemand

03/08/15 6:38:50.862 pm WindowServer[133]: GLCompositor: GL renderer id 0x01024400, GL mask 0x0000001f, accelerator 0x00002f53, unit 0, caps QEX|MIPMAP, vram 1024 MB

03/08/15 6:38:50.862 pm WindowServer[133]: GLCompositor: GL renderer id 0x01024400, GL mask 0x0000001f, texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

03/08/15 6:38:50.862 pm WindowServer[133]: GLCompositor enabled for tile size [256 x 256]

03/08/15 6:38:50.863 pm WindowServer[133]: CGXGLInitMipMap: mip map mode is on

03/08/15 6:38:51.125 pm WindowServer[133]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

03/08/15 6:38:51.650 pm mds[55]: (Volume.Normal:2464) volume:0x7fd9a2001000 ********** Bootstrapped Creating a default store:0 SpotLoc:(null) SpotVerLoc:(null) occlude:0 /Volumes/Recovery HD

03/08/15 6:38:53.867 pm WindowServer[133]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x042730c0 device: 0x7f8ce3e0bc70 isBackBuffered: 1 numComp: 3 numDisp: 3

03/08/15 6:38:53.867 pm WindowServer[133]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7f8ce3e0bc70) - enabling OpenGL

03/08/15 6:39:01.392 pm SymDaemon[73]: Version of Kernel Extension is: 14

03/08/15 6:39:01.392 pm SymDaemon[73]: Unsigned Kernel Extension will lead to warning if loaded

03/08/15 6:39:01.392 pm SymDaemon[73]: Loading Signed version of Kext in 10.9 OS X: /Library/Application Support/Symantec/AntiVirus/Signed/SymAPComm.kext

03/08/15 6:39:03.274 pm SymDaemon[73]: Version of Kernel Extension is: 14

03/08/15 6:39:03.274 pm SymDaemon[73]: Unsigned Kernel Extension will lead to warning if loaded

03/08/15 6:39:03.274 pm SymDaemon[73]: Initializing ndc engine signed version of Kext in 10.9 OS X: /Library/Extensions/ndcengine.kext

03/08/15 6:39:04.517 pm com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

03/08/15 6:39:04.522 pm com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

03/08/15 6:39:04.000 pm kernel[0]: hfs: unmount initiated on Recovery HD on device disk0s3

03/08/15 6:39:04.537 pm WindowServer[133]: CGXSetDisplayColorProfileAndTransfer: Display 0x042730c0: Unit 0; ColorProfile { 1313887619 }; TransferTable (256, 12)

03/08/15 6:39:04.538 pm com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

03/08/15 6:39:04.542 pm com.apple.xpc.launchd[1]: (com.apple.AssistiveControl.running) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:39:04.542 pm com.apple.xpc.launchd[1]: (com.apple.btsa) This key does not do anything: OnDemand

03/08/15 6:39:04.544 pm com.apple.xpc.launchd[1]: (com.apple.coreservices.lsactivity) Unknown key for Boolean: DrainMessagesAfterFailedInit

03/08/15 6:39:04.546 pm com.apple.xpc.launchd[1]: (com.apple.helpd) This key does not do anything: OnDemand

03/08/15 6:39:04.549 pm com.apple.xpc.launchd[1]: (com.apple.noticeboard.agent) This key does not do anything: OnDemand

03/08/15 6:39:04.553 pm com.apple.xpc.launchd[1]: (com.apple.speech.speechsynthesisd) This key does not do anything: OnDemand

03/08/15 6:39:04.555 pm com.apple.xpc.launchd[1]: (com.apple.inputswitcher.running) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:39:04.555 pm com.apple.xpc.launchd[1]: (com.apple.universalaccesscontrol.running) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:39:04.555 pm com.apple.xpc.launchd[1]: (com.apple.universalaccessd.running) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:39:04.556 pm com.apple.xpc.launchd[1]: (com.apple.UserEventAgent-LoginWindow) This service is defined to be constantly running and is inherently inefficient.

03/08/15 6:39:04.556 pm com.apple.xpc.launchd[1]: (com.apple.VoiceOver.running) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:39:04.557 pm com.apple.xpc.launchd[1]: (com.apple.ZoomWindow.running) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.

03/08/15 6:39:04.582 pm PowerChime[206]: objc[206]: Class BUIPowerSource is implemented in both /System/Library/PrivateFrameworks/BatteryUIKit.framework/Versions/A/BatteryUIKi t and /System/Library/CoreServices/PowerChime.app/Contents/MacOS/PowerChime. One of the two will be used. Which one is undefined.

03/08/15 6:39:04.620 pm WindowServer[133]: CGXSetDisplayColorProfileAndTransfer: Display 0x042730c0: Unit 0; ColorProfile { 1313887619 }; TransferTable (256, 12)

03/08/15 6:39:04.621 pm com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

03/08/15 6:39:04.651 pm DMProxy[194]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

Please let me know if any of you can help me out! Thanks!

Nivi