Ask Different Asked by ijustwanttousemymac on January 2, 2022
I’ve had my 13 inch 2019 MacBook Pro for almost a year now. Over the 3 weeks or so, it has begun randomly restarting or crashing every once and a while. I haven’t changed my usage habits, or downloaded any new programs, however, I did recently start using my external hard drive again so I can have daily Time Machine backups. (I had bought it in January and used it at my office daily, but then didn’t have access to it for 3 months due to COVID restrictions.) It seems unlikely to me that that could be the cause, as I bought the hard drive from Target and it doesn’t seem suspicious.
Over the last 3 weeks or so, occasionally when I am working the screen will just go black, and the haptic feedback from 3D touch will stop, as if it ran out of battery, but it didn’t. Then, when I start it back up, I will get a Problem Report for macOS popup that says my computer restarted because of a problem. At first I assumed this was possibly related to the fact that I hadn’t updated my macOS in far too long, so I updated to Catalina, but the issue keeps happening.
I am including the error report here in the hopes someone smarter than me can help me figure out what’s wrong and how to fix it. Thank you so much for your help in advance:
panic(cpu 6 caller 0xffffff7f94bd9d17): @/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/IOUSBHostFamily_Drivers/IOUSBHostFamily-800.141.1/AppleUSBXHCI/AppleUSBXHCITransferRing.cpp:139
Backtrace (CPU 6), Frame : Return Address
0xffffff92245c37f0 : 0xffffff801151a65d
0xffffff92245c3840 : 0xffffff8011654a75
0xffffff92245c3880 : 0xffffff80116465fe
0xffffff92245c38d0 : 0xffffff80114c0a40
0xffffff92245c38f0 : 0xffffff8011519d27
0xffffff92245c39f0 : 0xffffff801151a117
0xffffff92245c3a40 : 0xffffff8011cc1abc
0xffffff92245c3ab0 : 0xffffff7f94bd9d17
0xffffff92245c3ac0 : 0xffffff7f94bbc734
0xffffff92245c3b00 : 0xffffff7f94bd33c8
0xffffff92245c3b20 : 0xffffff7f94bd9aa5
0xffffff92245c3b40 : 0xffffff7f94bd93fc
0xffffff92245c3b80 : 0xffffff7f94e61958
0xffffff92245c3bb0 : 0xffffff8011c2ea28
0xffffff92245c3c10 : 0xffffff7f91ffdaea
0xffffff92245c3c60 : 0xffffff7f920319f9
0xffffff92245c3c80 : 0xffffff8011c2ea28
0xffffff92245c3ce0 : 0xffffff7f92012d52
0xffffff92245c3d30 : 0xffffff8011c2ea28
0xffffff92245c3d90 : 0xffffff7f9200f23d
0xffffff92245c3db0 : 0xffffff8011bfe0b5
0xffffff92245c3de0 : 0xffffff8011c059e3
0xffffff92245c3e60 : 0xffffff7f9201d69d
0xffffff92245c3ea0 : 0xffffff7f92009c04
0xffffff92245c3ec0 : 0xffffff801155c605
0xffffff92245c3f40 : 0xffffff801155c131
0xffffff92245c3fa0 : 0xffffff80114c013e
Kernel Extensions in backtrace:
com.apple.iokit.IOUSBHostFamily(1.2)[46B74D4B-F96A-3C3D-9373-CA956389608C]@0xffffff7f91fe4000->0xffffff7f920ddfff
dependency: com.apple.driver.AppleBusPowerController(1.0)[FF1BAE1C-CA7A-3DF2-810C-D5372B240604]@0xffffff7f91fca000
dependency: com.apple.driver.AppleUSBHostMergeProperties(1.2)[77AA2487-AE0D-364A-BD0A-6361747DAB91]@0xffffff7f91fd2000
dependency: com.apple.driver.usb.AppleUSBCommon(1.0)[FD7E16C9-CC6D-3595-8E03-291F9DA0397E]@0xffffff7f91fd6000
com.apple.driver.usb.AppleUSBXHCI(1.2)[1F700485-12DC-38D7-A500-E110FE1EFE3C]@0xffffff7f94ba3000->0xffffff7f94bfafff
dependency: com.apple.iokit.IOACPIFamily(1.4)[68557A36-4EE1-372A-983B-BB2769FDB8E0]@0xffffff7f91f09000
dependency: com.apple.iokit.IOUSBHostFamily(1.2)[46B74D4B-F96A-3C3D-9373-CA956389608C]@0xffffff7f91fe4000
dependency: com.apple.driver.usb.AppleUSBCommon(1.0)[FD7E16C9-CC6D-3595-8E03-291F9DA0397E]@0xffffff7f91fd6000
com.apple.driver.usb.AppleUSBXHCIPCI(1.2)[F792C041-4B00-3AA8-ADBC-01D43D648A68]@0xffffff7f94e59000->0xffffff7f94e8dfff
dependency: com.apple.iokit.IOACPIFamily(1.4)[68557A36-4EE1-372A-983B-BB2769FDB8E0]@0xffffff7f91f09000
dependency: com.apple.iokit.IOPCIFamily(2.9)[B130A8B7-967F-330E-942F-E0BB93C71C56]@0xffffff7f91f12000
dependency: com.apple.iokit.IOUSBHostFamily(1.2)[46B74D4B-F96A-3C3D-9373-CA956389608C]@0xffffff7f91fe4000
dependency: com.apple.driver.usb.AppleUSBCommon(1.0)[FD7E16C9-CC6D-3595-8E03-291F9DA0397E]@0xffffff7f91fd6000
dependency: com.apple.driver.usb.AppleUSBXHCI(1.2)[1F700485-12DC-38D7-A500-E110FE1EFE3C]@0xffffff7f94ba3000
BSD process name corresponding to current thread: kernel_task
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev
Mac OS version:
19G73
Kernel version:
Darwin Kernel Version 19.6.0: Sun Jul 5 00:43:10 PDT 2020; root:xnu-6153.141.1~9/RELEASE_X86_64
Kernel UUID: 783946EA-6F11-3647-BF90-787AEA14B954
Kernel slide: 0x0000000011200000
Kernel text base: 0xffffff8011400000
__HIB text base: 0xffffff8011300000
System model name: MacBookPro15,4 (Mac-53FDB3D8DB8CA971)
System shutdown begun: NO
System uptime in nanoseconds: 6151369211758
last loaded kext at 6024279518694: >Core!SFsck 551 (addr 0xffffff7f956ef000, size 106496)
last unloaded kext at 2030655064956: >usb.IOUSBHostHIDDevice 1.2 (addr 0xffffff7f955d6000, size 45056)
loaded kexts:
>Core!SFsck 551
>AudioAUUC 1.70
|SCSITaskUserClient 422.120.3
@fileutil 20.036.15
>!AGraphicsDevicePolicy 5.2.6
@AGDCPluginDisplayMetrics 5.2.6
>!AHV 1
|IOUserEthernet 1.0.1
|IO!BSerialManager 7.0.6f7
>AGPM 111.4.4
>!APlatformEnabler 2.7.0d0
>X86PlatformShim 1.0.0
>!AUpstreamUserClient 3.6.8
>pmtelemetry 1
>!A!IKBLGraphics 14.0.7
@Dont_Steal_Mac_OS_X 7.0.0
>!ABacklight 180.3
>!AThunderboltIP 3.1.4
>BridgeAudioCommunication 6.70.7
>!AMCCSControl 1.14
>!ABridgeAudio!C 6.70.7
>!AGFXHDA 100.1.429
>!ATopCaseHIDEventDriver 3430.1
>!AHIDALSService 1
>!A!ICFLGraphicsFramebuffer 14.0.7
>!AAVEBridge 6.1
>!A!ISlowAdaptiveClocking 4.0.0
>!A!IPCHPMC 2.0.1
@filesystems.autofs 3.0
>usb.realtek8153patcher 5.0.0
@filesystems.apfs 1412.141.1
>BCMWLANFirmware4355.Hashstore 1
>BCMWLANFirmware4364.Hashstore 1
>BCMWLANFirmware4377.Hashstore 1
@filesystems.hfs.kext 522.100.5
@BootCache 40
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
>!AVirtIO 1.0
>!A!BModule 1
@private.KextAudit 1.0
>!ASmartBatteryManager 161.0.0
>!ABCMWLANBusInterfacePCIe 1
>!AACPIButtons 6.1
>!ASMBIOS 2.1
>!AACPIEC 6.1
>!AAPIC 1.7
$!AImage4 1
@nke.applicationfirewall 303
$TMSafetyNet 8
@!ASystemPolicy 2.0.0
|EndpointSecurity 1
>!AXsanScheme 3
>usb.cdc.acm 5.0.0
>usb.serial 6.0.0
>usb.cdc.ecm 5.0.0
>usb.IOUSBHostHIDDevice 1.2
>!AGraphicsControl 5.2.6
|IOAVB!F 850.1
>!ABacklightExpert 1.1.0
@!AGPUWrangler 5.2.6
>!UAudio 323.4
>X86PlatformPlugin 1.0.0
>!ASMBus!C 1.0.18d1
>!AActuatorDriver 3440.1
|IONDRVSupport 576.1
>!AHIDKeyboard 209
>!AHS!BDriver 3430.1
>IO!BHIDDriver 7.0.6f7
>!AMultitouchDriver 3440.1
>!AInputDeviceSupport 3440.8
>!A!ILpssUARTv1 3.0.60
>!A!ILpssUARTCommon 3.0.60
>!AOnboardSerial 1.0
@!AGraphicsDeviceControl 5.2.6
|IOAccelerator!F2 438.7.3
|IOGraphics!F 576.1
|IOSlowAdaptiveClocking!F 1.0.0
>IOPlatformPlugin!F 6.0.0d8
@plugin.IOgPTPPlugin 840.3
|IOEthernetAVB!C 1.1.0
@kext.triggers 1.0
>Core!S 551
>usb.cdc.ncm 5.0.0
>usb.!UHub 1.2
>usb.cdc 5.0.0
>usb.networking 5.0.0
>usb.!UHostCompositeDevice 1.2
|IONVMe!F 2.1.0
>usb.!UVHCIBCE 1.2
>usb.!UVHCI 1.2
>usb.!UVHCICommonBCE 1.0
>usb.!UVHCICommon 1.0
>!AEffaceableNOR 1.0
|IOBufferCopy!C 1.1.0
|IOBufferCopyEngine!F 1
>!AThunderboltPCIDownAdapter 2.5.4
>!AThunderboltDPInAdapter 6.2.6
>!AThunderboltDPAdapter!F 6.2.6
>!AHPM 3.4.4
>!A!ILpssI2C!C 3.0.60
>!A!ILpssDmac 3.0.60
|IOSurface 269.11
@filesystems.hfs.encodings.kext 1
|IOAudio!F 300.2
@vecLib.kext 1.2.0
>!AThunderboltNHI 5.8.6
|IOThunderbolt!F 7.6.1
>IO!BHost!CPCIeTransport 7.0.6f7
|IO!BHost!CTransport 7.0.6f7
>!A!BDebug 1
>!AConvergedIPCOLYBTControl 1
>!A!BDebugService 1
>!AConvergedPCI 1
|IOUSB!F 900.4.2
>!A!ILpssI2C 3.0.60
>usb.!UXHCIPCI 1.2
>usb.!UXHCI 1.2
>!AEFINVRAM 2.1
>!AEFIRuntime 2.1
>!AMultiFunctionManager 1
>!ABCMWLANCore 1.0.0
>mDNSOffloadUserClient 1.0.1b8
>IOImageLoader 1.0.0
|IOSerial!F 11
|IO80211!FV2 1200.12.2b1
>corecapture 1.0.4
|IOSkywalk!F 1
>!ASMCRTC 1.0
|IOSMBus!F 1.1
|IOHID!F 2.0.0
$quarantine 4
$sandbox 300.0
@kext.!AMatch 1.0.0d1
>!AKeyStore 2
>!UTDM 489.120.1
|IOSCSIBlockCommandsDevice 422.120.3
>!ACredentialManager 1.0
>!AFDEKeyStore 28.30
>!AEffaceable!S 1.0
>!AMobileFileIntegrity 1.0.5
@kext.CoreTrust 1
|CoreAnalytics!F 1
|IOTimeSync!F 840.3
|IONetworking!F 3.4
>DiskImages 493.0.0
|IO!B!F 7.0.6f7
|IO!BPacketLogger 7.0.6f7
>!ASSE 1.0
>KernelRelayHost 1
>!ASEPManager 1.0.1
>IOSlaveProcessor 1
|IOUSBMass!SDriver 157.140.1
|IOSCSIArchitectureModel!F 422.120.3
|IO!S!F 2.1
|IOUSBHost!F 1.2
>usb.!UCommon 1.0
>!UHostMergeProperties 1.2
>!ABusPower!C 1.0
|IOReport!F 47
>!AACPIPlatform 6.1
>!ASMC 3.1.9
>watchdog 1
|IOPCI!F 2.9
|IOACPI!F 1.4
@kec.pthread 1
@kec.corecrypto 1.0
@kec.Libm 1
Kernel panics are usually caused by hardware problems. The report you posted suggests it is a problem with a USB device, but it could be anything, really.
I suggest running Apple Hardware Diagnostics (be sure to unplug all your USB devices etc. as it says in the instructions). If it fails, call Apple about getting your MacBook repaired. If it succeeds, run it a second time just to be sure.
If no hardware problems are found, then stop using your external drive and see if the panics stop. It might be the drive, or it might be the drive's power connector, or it might be the USB cable connecting the drive, or it might be some other USB device attached (like an external keyboard), or it could be something else entirely. It's pretty much trial and error if the hardware diagnostics do not turn up anything.
Answered by Old Pro on January 2, 2022
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