Mac restarting itself

[Jix]

Hello, I would appreciate help understanding what might be causing the following situation and how significant the problem might be. I have a MacBook Pro running OS 10.11.6. It recently has begun restarting itself when idle, and a message will appear on the screen saying that the computer is restarting because of a problem. The start of the report data is as follows:
Anonymous UUID: 8DD776CA-FC44-3627-6429-490EC26B64DA

*** Panic Report ***
panic(cpu 3 caller 0xffffff8003a3995e): "A kext releasing a IOUSBMassStorageInterfaceNub has corrupted the registry."@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.60.11/libkern/c++/OSObject.cpp:200
Backtrace (CPU 3), Frame : Return Address
0xffffff91ed6fbdc0 : 0xffffff80034dab52
0xffffff91ed6fbe40 : 0xffffff8003a3995e
0xffffff91ed6fbe60 : 0xffffff7f86098e08
0xffffff91ed6fbe90 : 0xffffff8003a90768
0xffffff91ed6fbed0 : 0xffffff8003ab372e
0xffffff91ed6fbf10 : 0xffffff8003a8f8c4
0xffffff91ed6fbf90 : 0xffffff8003a8fb47
0xffffff91ed6fbfb0 : 0xffffff80035c9117

I have the rest of the report data saved, if that would be of help.

Other than the restarting, the computer does not seem to have any performance problems; everything works fine. Should I just live with it? Is it fixable? Can it be caused by a virus?

Thanks for any help.
Joyce

 

[ferrarr]

You didn't tell us what model and year your MBP is? This information will be very helpful. It looks, to me, that the issue is with one of the USB ports, or if you are using a hub, that is causing the issue. Do you have any USB peripherals being used with your MBP?

 

[Jix]

It is a 2011 MBP
Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro8,1
Processor Name: Intel Core i5
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 16 GB

I am not using a hub, and the only USB peripheral is the Huawei mobile wifi. I will try using just the other USB port and see if the problem continues.

Thanks Bob.

 

[gsahli]

Seems like something else related to USB might be the cause. Can you give us more of the panic report? Especially the section that says "last kext loaded" and the next 6-8 lines.
For Macs, kext means kernel extensions - the rest of the world calls those "drivers."

 

[Jix]

Thanks for your response, gsahil. Please see below:
Anonymous UUID: 8DD776CA-FC44-3627-6429-490EC26B64DA

*** Panic Report ***
panic(cpu 3 caller 0xffffff8003a3995e): "A kext releasing a IOUSBMassStorageInterfaceNub has corrupted the registry."@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.60.11/libkern/c++/OSObject.cpp:200
Backtrace (CPU 3), Frame : Return Address
0xffffff91ed6fbdc0 : 0xffffff80034dab52
0xffffff91ed6fbe40 : 0xffffff8003a3995e
0xffffff91ed6fbe60 : 0xffffff7f86098e08
0xffffff91ed6fbe90 : 0xffffff8003a90768
0xffffff91ed6fbed0 : 0xffffff8003ab372e
0xffffff91ed6fbf10 : 0xffffff8003a8f8c4
0xffffff91ed6fbf90 : 0xffffff8003a8fb47
0xffffff91ed6fbfb0 : 0xffffff80035c9117
Kernel Extensions in backtrace:
com.apple.iokit.IOUSBMassStorageDriver(1.0)[33F56811-6866-320F-90A5-06CD12BAE867]@0xffffff7f86097000->0xffffff7f860c3fff
dependency: com.apple.iokit.IOUSBHostFamily(1.0.1)[79D250A3-843A-3750-BE64-A252CF17A148]@0xffffff7f84202000
dependency: com.apple.iokit.IOStorageFamily(2.1)[DC1AAB7C-F417-3238-BB3F-2A5B84D67B90]@0xffffff7f83c4c000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(3.7.7)[07D953DC-7B94-3AE8-A379-2B02F5D538F9]@0xffffff7f83ce9000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
15G1004

Kernel version:
Darwin Kernel Version 15.6.0: Mon Aug 29 20:21:34 PDT 2016; root:xnu-3248.60.11~1/RELEASE_X86_64
Kernel UUID: E349749B-3303-3DDF-959C-B5885A0E1F6E
Kernel slide: 0x0000000003200000
Kernel text base: 0xffffff8003400000
__HIB text base: 0xffffff8003300000
System model name: MacBookPro8,1 (Mac-94245B3640C91C81)

System uptime in nanoseconds: 54645350397369
last loaded kext at 54178194958567: com.apple.driver.AppleUSBODD 3.7.1 (addr 0xffffff7f860c4000, size 20480)
last unloaded kext at 47689791820177: com.apple.driver.AppleUSBMergeNub 900.4.1 (addr 0xffffff7f86094000, size 12288)
loaded kexts:
com.apple.driver.AppleUSBODD 3.7.1
com.apple.driver.AudioAUUC 1.70
com.apple.iokit.IOBluetoothSerialManager 4.4.6f1
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 110.22.0
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyHIDDriver 124

 

[gsahli]

Process name kernel_task doesn't tell us much because kernel_task is the scheduler of other tasks.
com.apple.driver.AGPM is related to problematic graphics on some MacBook Pros. You should check if your MBP is covered in this repair program:
https://www.apple.com/support/macbookpro-videoissues/

 

[Jix]

Thank you, gsahil. No, my 13 inch MBP is not covered in that repair program, only 15 and 17 inch MBPs are covered.

 

[gsahli]

Bummer.
I think you should take it to an Apple Store for free diagnostics.

 

[Jix]

Will do. Thanks for your help.