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Connecting network cable to Thunderbolt display causes MBA to crash

When plugging my MBA into my Thunderbolt screen I noticed that it often causes my MBA to crash - very frustrating! I have since discovered that this only happens when my wired network lead is connected to the Thunderbolt display. Does anyone have any suggestions? I have checked the firmware for the monitor and it is apparently up to date. I would like to be able to use the wired network through the connection on the back of the Thunderbolt screen so it really is quite inconvenient.

Thanks for any help/advice.

MBA (c. late 2012) running under Yosemite, new (late 2014) 27" Thunderbolt display.

MacBook, OS X Yosemite (10.10.1)

Posted on Jan 26, 2015 8:20 AM

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3 replies

Jan 28, 2015 3:40 AM in response to SJS73

This is the report that was captured after the most recent crash (it means nothing to me!):


Anonymous UUID: 822F27BF-3E21-E25D-7633-8F8CFFE82DDA



Wed Jan 28 09:10:54 2015



*** Panic Report ***

Machine-check capabilities: 0x0000000000000c07

family: 6 model: 58 stepping: 9 microcode: 21

signature: 0x306a9

Intel(R) Core(TM) i7-3667U CPU @ 2.00GHz

7 error-reporting banks

Processor 0: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC3_STATUS(0x40d): 0xbe00000000800400

IA32_MC3_ADDR(0x40e): 0x00003f7fa326f37c

IA32_MC3_MISC(0x40f): 0x000000000003ffff

Processor 1: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC3_STATUS(0x40d): 0xbe00000000800400

IA32_MC3_ADDR(0x40e): 0x00003f7fa326f37c

IA32_MC3_MISC(0x40f): 0x000000000003ffff

Processor 2: IA32_MCG_STATUS: 0x0000000000000004

IA32_MC3_STATUS(0x40d): 0xbe00000000800400

IA32_MC3_ADDR(0x40e): 0x00003f7fa383cd6d

IA32_MC3_MISC(0x40f): 0x000000000003ffff

Processor 3: IA32_MCG_STATUS: 0x0000000000000005

IA32_MC3_STATUS(0x40d): 0xbe00000000800400

IA32_MC3_ADDR(0x40e): 0x00003f7fa383cd6d

IA32_MC3_MISC(0x40f): 0x000000000003ffff

panic(cpu 1 caller 0xffffff802241f12a): "Machine Check at 0xffffff7fa326f37c, registers:\n" "CR0: 0x000000008001003b, CR2: 0x000000010a35d000, CR3: 0x0000000025272000, CR4: 0x00000000001626e0\n" "RAX: 0xffffff812b25e010, RBX: 0x0000000000000000, RCX: 0x38d4d359698d0037, RDX: 0xffffff81239fc088\n" "RSP: 0xffffff814b943b40, RBP: 0xffffff814b943b80, RSI: 0xffffff81239fc068, RDI: 0x0000000000000000\n" "R8: 0x00000000009891e0, R9: 0xffffff81239fc068, R10: 0x00001821f6529797, R11: 0x00001821f5ba05b7\n" "R12: 0xffffff80f3939000, R13: 0x00000000ffffffff, R14: 0x0000000000000000, R15: 0xffffff8022b0ae74\n" "RFL: 0x0000000000010202, RIP: 0xffffff7fa326f37c, CS: 0x0000000000000008, SS: 0x0000000000000000\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2782.1.97/osfmk/i386/trap_native.c:1 68

Backtrace (CPU 1), Frame : Return Address

0xffffff8123965e90 : 0xffffff802233a811

0xffffff8123965f10 : 0xffffff802241f12a

0xffffff8123966070 : 0xffffff802243acef

0xffffff814b943b80 : 0xffffff7fa3271a68

0xffffff814b943bb0 : 0xffffff7fa326e261

0xffffff814b943c00 : 0xffffff7fa30ad4b0

0xffffff814b943ce0 : 0xffffff7fa326f830

0xffffff814b943da0 : 0xffffff7fa32719dd

0xffffff814b943e00 : 0xffffff7fa3274973

0xffffff814b943e50 : 0xffffff7fa3274aa6

0xffffff814b943ea0 : 0xffffff80228db3cd

0xffffff814b943f00 : 0xffffff802236be13

0xffffff814b943fb0 : 0xffffff80224192c7

Kernel Extensions in backtrace:

com.apple.iokit.IOUSBFamily(705.4.14)[E15E9DC8-410F-3612-8371-E5FECD939E0D]@0xf fffff7fa30ab000->0xffffff7fa310ffff

dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7fa2b24000

com.apple.driver.AppleUSBEHCI(705.4.14)[8DF38F62-9C2F-3A62-B6AD





Model: MacBookAir5,2, BootROM MBA51.00EF.B02, 2 processors, Intel Core i7, 2 GHz, 8 GB, SMC 2.5f7

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, -

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, -

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xE9), Broadcom BCM43xx 1.0 (7.15.124.12.10)

Bluetooth: Version 4.3.1f2 15015, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en0

Network Service: Display Ethernet, Ethernet, en2

PCI Card: Apple 57761-B0, Ethernet Controller, Thunderbolt@191,0,0

PCI Card: pci11c1,5901, IEEE 1394 Open HCI, Thunderbolt@190,0,0

PCI Card: pci12d8,400e, USB Open Host Controller, Thunderbolt@196,0,0

PCI Card: pci12d8,400e, USB Open Host Controller, Thunderbolt@196,0,1

PCI Card: pci12d8,400f, USB Enhanced Host Controller, Thunderbolt@196,0,2

Serial ATA Device: APPLE SSD SM512E, 500.28 GB

USB Device: Hub

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Hub

USB Device: HP LaserJet 400 color M451dn

USB Device: Apple Thunderbolt Display

USB Device: Display Audio

USB Device: FaceTime HD Camera (Display)

Thunderbolt Bus: MacBook Air, Apple Inc., 23.4

Thunderbolt Device: Thunderbolt Display, Apple Inc., 1, 26.2

Connecting network cable to Thunderbolt display causes MBA to crash

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