Early 2011 MacBook Pro randomly shutting off after Yosemite update 10.10.4

Try restarting your Mac in Safe mode:

- Shut down your Mac

- Wait until your computer turns off and after that press the Power button

- Right after you hear the startup tone, press and hold the Shift key

- Release the Shift key when you see a grey Apple sign and the progress bar below this sign

- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)

- Click on Verify Disk and then, if asked to fix problems, on Repair Disk

- After this, click on Verify Disk Permissions and then on Repair Disk Permissions

- After the process is finished, shut down your Mac and turn it back on after about 30 seconds

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

Launch the Console application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

In the Console window, select

DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports

(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select

View ▹ Show Log List

from the menu bar.

There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.

If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.

In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)

Please don’t post other kinds of diagnostic report.

I know the report is long, maybe several hundred lines. Please post all of it anyway.

When you post the report, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

I have a similar issue. This week after updating to 10.10.4, my mid-2011 17" MBP started randomly shutting down.

At first the incidents seemed limited to when operating on battery power (even though battery was fully charged), but in the last two days it started shutting down about every 10 minutes or so, even when connected to AC power. I reset the SMC and ran diagnostics to no avail. Felt hot, though, and the fans were running hard.

Took to Genius Bar today after reading about the graphics issue repair program for 2011 models, but it passed that test (along with all the other standard hardware tests). Had to leave it with them for further diagnostics...

Wed Jul 22 09:35:06 2015

*** Panic Report ***

panic(cpu 2 caller 0xffffff800dc17cc2): Kernel trap at 0xffffff800dbcf283, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x0000000000000030, CR3: 0x00000001bd0c20a9, CR4: 0x00000000000626e0

RAX: 0x0000000000000030, RBX: 0xffffff8017622a00, RCX: 0x0000000000000030, RDX: 0x0000000000000000

RSP: 0xffffff811874b550, RBP: 0xffffff811874b580, RSI: 0x000000005048887f, RDI: 0xffffff80117dc080

R8: 0x0000000000000023, R9: 0xffffff80dea1c000, R10: 0x000ffffffffff000, R11: 0xffffff8030e48ae0

R12: 0x000000000002410f, R13: 0xffffff8010fca000, R14: 0xffffff80117dc080, R15: 0xffffff7f80000000

RFL: 0x0000000000010207, RIP: 0xffffff800dbcf283, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000000000030, Error code: 0x0000000000000000, Fault CPU: 0x2

Backtrace (CPU 2), Frame : Return Address

0xffffff811874b200 : 0xffffff800db2bda1

0xffffff811874b280 : 0xffffff800dc17cc2

0xffffff811874b440 : 0xffffff800dc34b73

0xffffff811874b460 : 0xffffff800dbcf283

0xffffff811874b580 : 0xffffff800dbd19b8

0xffffff811874b5a0 : 0xffffff800dbd1b36

0xffffff811874b600 : 0xffffff800dbb5a23

0xffffff811874b680 : 0xffffff800dbbccaa

0xffffff811874b6c0 : 0xffffff800dbbca3e

0xffffff811874b6f0 : 0xffffff800dbb3e75

0xffffff811874b730 : 0xffffff800dbde195

0xffffff811874b750 : 0xffffff800db1ba6f

0xffffff811874b7e0 : 0xffffff800db3024e

0xffffff811874b800 : 0xffffff800db30031

0xffffff811874b830 : 0xffffff800db149f3

0xffffff811874b880 : 0xffffff800db303d6

0xffffff811874b8b0 : 0xffffff800db1c303

0xffffff811874b910 : 0xffffff800e0e566d

0xffffff811874b950 : 0xffffff7f8fe4707b

0xffffff811874b980 : 0xffffff7f8fe46f08

0xffffff811874b9d0 : 0xffffff7f8fe46dd0

0xffffff811874ba20 : 0xffffff7f8fe4596e

0xffffff811874ba40 : 0xffffff7f8fe45898

0xffffff811874ba70 : 0xffffff7f8fe367ea

0xffffff811874baa0 : 0xffffff7f8fe6e105

0xffffff811874bad0 : 0xffffff7f8fe36bc5

0xffffff811874baf0 : 0xffffff800e0f9cf9

0xffffff811874bb20 : 0xffffff800dbdf912

0xffffff811874bb70 : 0xffffff800db30031

0xffffff811874bba0 : 0xffffff800db149f3

0xffffff811874bbf0 : 0xffffff800db303d6

0xffffff811874bc20 : 0xffffff800db1da6d

0xffffff811874bcc0 : 0xffffff800db2078c

0xffffff811874bd00 : 0xffffff800db4e624

0xffffff811874bd40 : 0xffffff800dfc1f19

0xffffff811874bdb0 : 0xffffff800dfd9742

0xffffff811874be30 : 0xffffff800dfd9c17

0xffffff811874be70 : 0xffffff800db282d6

0xffffff811874bea0 : 0xffffff800dc1843e

0xffffff811874bec0 : 0xffffff800dc34b3f

Kernel Extensions in backtrace:

com.apple.driver.AppleIntelHD3000Graphics(10.0)[37C5201E-31F8-314C-9609-B36C374 63E22]@0xffffff7f8fe2b000->0xffffff7f8fe91fff

dependency: com.apple.iokit.IOPCIFamily(2.9)[D8F585E8-2EE9-3135-8E37-A034123FE45C]@0xffffff 7f8e324000

dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[6F7F093D-DBEA-356A-9A08-D8EAC7F767DE]@0 xffffff7f8ec94000

BSD process name corresponding to current thread: Google Chrome He

Mac OS version:

14E46

Kernel version:

Darwin Kernel Version 14.4.0: Thu May 28 11:35:04 PDT 2015; root:xnu-2782.30.5~1/RELEASE_X86_64

Kernel UUID: E3C26B2F-8B97-3F1D-B193-690F7E34F830

Kernel slide: 0x000000000d800000

Kernel text base: 0xffffff800da00000

__HIB text base: 0xffffff800d900000

System model name: MacBookPro8,1 (Mac-94245B3640C91C81)

System uptime in nanoseconds: 8386861879757

last loaded kext at 8501660767: com.apple.driver.AudioAUUC 1.70 (addr 0xffffff7f8fa49000, size 32768)

last unloaded kext at 258572349802: com.apple.driver.AppleUSBUHCI 656.4.1 (addr 0xffffff7f8e9e4000, size 65536)

loaded kexts:

com.apple.driver.AudioAUUC 1.70

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AGPM 110.19.6

com.apple.iokit.IOBluetoothSerialManager 4.3.5f8

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleHDA 272.18.1

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.5f8

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.ApplePolicyControl 3.10.24

com.apple.driver.AppleLPC 1.7.3

com.apple.driver.AppleIntelHD3000Graphics 10.0.0

com.apple.driver.AppleIntelSNBGraphicsFB 10.0.0

com.apple.driver.AppleSMCLMU 2.0.7d0

com.apple.driver.AppleMikeyDriver 272.18.1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleHV 1

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleBacklight 170.7.4

com.apple.driver.AppleMCCSControl 1.2.12

com.apple.driver.AppleThunderboltIP 2.0.2

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.driver.AppleUSBTCButtons 240.2

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.driver.AppleIRController 327.5

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 36

com.apple.iokit.SCSITaskUserClient 3.7.5

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.7.1

com.apple.driver.AppleUSBHub 705.4.2

com.apple.iokit.AppleBCM5701Ethernet 10.1.3

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AppleSDXC 1.6.5

com.apple.driver.AppleFWOHCI 5.5.2

com.apple.driver.AppleAHCIPort 3.1.2

com.apple.driver.AppleUSBEHCI 705.4.14

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 3.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

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.AppleGraphicsDeviceControl 3.10.24

com.apple.iokit.IOSerialFamily 11

com.apple.driver.DspFuncLib 272.18.1

com.apple.kext.OSvKernDSPLib 1.15

com.apple.driver.AppleHDAController 272.18.1

com.apple.iokit.IOHDAFamily 272.18.1

com.apple.iokit.IOAudioFamily 203.3

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.5f8

com.apple.iokit.IOFireWireIP 2.2.6

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.iokit.IOSurface 97.4

com.apple.iokit.IOBluetoothFamily 4.3.5f8

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleGraphicsControl 3.10.24

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.AppleSMBusController 1.0.13d1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOUSBUserClient 705.4.0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

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.AppleUSBMergeNub 705.4.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.driver.CoreStorage 471.30.1

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.driver.AppleThunderboltDPInAdapter 4.0.6

com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.iokit.IOAHCISerialATAPI 2.6.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5

com.apple.driver.AppleThunderboltNHI 3.1.7

com.apple.iokit.IOThunderboltFamily 4.2.2

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.IOFireWireFamily 4.5.7

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 397

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.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

System Profile:

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)

Bluetooth: Version 4.3.5f8 15969, 3 services, 18 devices, 1 incoming serial ports

Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x85F7, 0x483634353155363746393333334700000000

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x85F7, 0x483634353155363746393333334700000000

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Apple Internal Keyboard / Trackpad

USB Device: Hub

USB Device: IR Receiver

Serial ATA Device: Samsung SSD 840 PRO Series, 256.06 GB

Serial ATA Device: MATSHITADVD-R UJ-8A8

Model: MacBookPro8,1, BootROM MBP81.0047.B27, 2 processors, Intel Core i7, 2.7 GHz, 8 GB, SMC 1.68f99

Network Service: Wi-Fi, AirPort, en1

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In

I am having a similar problem that I thought would be corrected once I updated to Yosemite but it hasn't seemed to make a difference. Below is what I am seeing in the report:

Sat Oct 31 16:33:46 2015

*** Panic Report ***

panic(cpu 2 caller 0xffffff802a18e50f): "vm_page_check_pageable_safe: trying to add page" "from compressor object (0xffffff802a8c35c0) to pageable queue"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3247.10.11/osfmk/vm/vm_res ident.c:7074

Backtrace (CPU 2), Frame : Return Address

0xffffff9134b4b2a0 : 0xffffff802a0e5307

0xffffff9134b4b320 : 0xffffff802a18e50f

0xffffff9134b4b340 : 0xffffff802a15366d

0xffffff9134b4b4c0 : 0xffffff802a15760b

0xffffff9134b4b6e0 : 0xffffff802a1d671d

0xffffff9134b4b8c0 : 0xffffff802a1f4313

0xffffff9134b4b8e0 : 0xffffff7fad6a0277

0xffffff9134b4b9f0 : 0xffffff7fad6d61f3

0xffffff9134b4ba20 : 0xffffff7fad69f4be

0xffffff9134b4bb00 : 0xffffff7fad69da77

0xffffff9134b4bb50 : 0xffffff802a6e3016

0xffffff9134b4bb80 : 0xffffff802a6e48e0

0xffffff9134b4bbe0 : 0xffffff802a6e1967

0xffffff9134b4bd20 : 0xffffff802a1a07d0

0xffffff9134b4be30 : 0xffffff802a0e9aa3

0xffffff9134b4be60 : 0xffffff802a0cd478

0xffffff9134b4bea0 : 0xffffff802a0dcfd5

0xffffff9134b4bf10 : 0xffffff802a1c13aa

0xffffff9134b4bfb0 : 0xffffff802a1f4b36

BSD process name corresponding to current thread: firefox

Mac OS version:

15B42

Kernel version:

Darwin Kernel Version 15.0.0: Sat Sep 19 15:53:46 PDT 2015; root:xnu-3247.10.11~1/RELEASE_X86_64

Kernel UUID: AB5FC1B4-12E7-311E-8E6F-9023985D8C1D

Kernel text base: 0xffffff802a000000

__HIB text base: 0xffffff8029f00000

System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 2149734145150

last loaded kext at 1937278698632: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7fabf14000, size 32768)

last unloaded kext at 2114436769310: com.apple.driver.DiskImages.KernelBacked 415 (addr 0xffffff7fabf23000, size 73728)

loaded kexts:

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AppleBluetoothMultitouch 90.3

com.apple.driver.AudioAUUC 1.70

com.apple.driver.pmtelemetry 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 4.4.2f1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.kext.AMDFramebuffer 1.3.8

com.apple.driver.AGPM 110.20.21

com.apple.driver.AppleIntelHD3000Graphics 10.0.0

com.apple.driver.AppleMikeyDriver 272.50.31

com.apple.AMDRadeonX3000 1.3.8

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleHDA 272.50.31

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AppleHV 1

com.apple.driver.AppleThunderboltIP 3.0.8

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.2f1

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.iokit.AppleBCM5701Ethernet 10.1.11

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleSMCLMU 208

com.apple.kext.AMD6000Controller 1.3.8

com.apple.driver.AppleMuxControl 3.11.33b1

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleIntelSNBGraphicsFB 10.0.0

com.apple.driver.AppleMCCSControl 1.2.13

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleUSBTCButtons 245.4

com.apple.driver.AppleUSBTCKeyboard 245.4

com.apple.driver.AppleIRController 327.5

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 37

com.apple.iokit.SCSITaskUserClient 3.7.7

com.apple.iokit.IOAHCIBlockStorage 2.8.0

com.apple.driver.AppleSDXC 1.7.0

com.apple.driver.AppleFWOHCI 5.5.2

com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1

com.apple.driver.AppleAHCIPort 3.1.5

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 4.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 4.0

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 163

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.driver.IOBluetoothHIDDriver 4.4.2f1

com.apple.driver.AppleMultitouchDriver 304.9

com.apple.driver.AppleHIDTransport 5

com.apple.iokit.IOSurface 108.0.1

com.apple.iokit.IOSerialFamily 11

com.apple.driver.CoreCaptureResponder 1

com.apple.iokit.IOAcceleratorFamily2 203.10

com.apple.driver.DspFuncLib 272.50.31

com.apple.kext.OSvKernDSPLib 525

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.2f1

com.apple.iokit.IOBluetoothFamily 4.4.2f1

com.apple.iokit.IOEthernetAVBController 1.0.3b3

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.kext.AMDSupport 1.3.8

com.apple.AppleGraphicsDeviceControl 3.11.33b1

com.apple.iokit.IOFireWireIP 2.2.6

com.apple.driver.AppleHDAController 272.50.31

com.apple.iokit.IOHDAFamily 272.50.31

com.apple.iokit.IOAudioFamily 204.1

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IO80211Family 1101.24

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.driver.corecapture 1.0.4

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.AppleGraphicsControl 3.11.33b1

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d7

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleSMBusController 1.0.14d1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.driver.AppleSMC 3.1.9

com.apple.kext.triggers 1.0

com.apple.driver.AppleUSBMultitouch 250.4

com.apple.iokit.IOUSBHIDDriver 900.4.1

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

com.apple.driver.CoreStorage 517

com.apple.iokit.IONetworkingFamily 3.2

com.apple.driver.usb.AppleUSBHub 1.0.1

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.7

com.apple.iokit.IOBDStorageFamily 1.8

com.apple.iokit.IODVDStorageFamily 1.8

com.apple.iokit.IOCDStorageFamily 1.8

com.apple.driver.AppleThunderboltDPInAdapter 4.1.2

com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.2

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.iokit.IOAHCISerialATAPI 2.6.2

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

com.apple.driver.AppleThunderboltNHI 4.0.4

com.apple.iokit.IOThunderboltFamily 5.0.6

com.apple.iokit.IOFireWireFamily 4.5.8

com.apple.iokit.IOAHCIFamily 2.8.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.driver.usb.AppleUSBEHCI 1.0.1

com.apple.iokit.IOUSBHostFamily 1.0.1

com.apple.driver.AppleUSBHostMergeProperties 1.0.1

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 415

com.apple.iokit.IOStorageFamily 2.1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 4.0

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

Unable to gather system configuration information.Model: MacBookPro8,2, BootROM MBP81.0047.B2A, 4 processors, Intel Core i7, 2 GHz, 8 GB, SMC 1.69f4

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In

Graphics: AMD Radeon HD 6490M, AMD Radeon HD 6490M, PCIe, 256 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0000, -

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0000, -

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)

Bluetooth: Version 4.4.2f1 16391, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: TOSHIBA MK5065GSXF, 500.11 GB

Serial ATA Device: MATSHITADVD-R UJ-898

USB Device: USB 2.0 Bus

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: IR Receiver

Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1

I thank anyone who can answer this. It happens when I visit one particular site - a real estate site. I don't think that it is a problem with their site and have emailed them about the issue.