Mac Restart when using Time Machine

Paul1977

macrumors newbie
Original poster
Feb 28, 2019
2
0
Hi,

I have 2 MBPs. One from 2018 with Mojave and one from 2014 with Sierra.

For both I backup to a Synology NAS, using TimeMachine. Previously both were running Sierra and backup-ing was no problem. Life was good ;)

I updated the 2018 MBP to Mojave in December 2018. Everything worked like a charm, but suddenly my MBP keeps on restarting.

I pinpointed the problem to TM. When I run TimeMachine on the 2018 MBP; I get a black screen with and the mac is rebooting.

Any-one any ideas how to fix this because i didn't make a backup since december 5th.
 

Honza1

macrumors 6502
Nov 30, 2013
437
145
US
I have poor experience with NAS TM disks.
They cannot be fixed and even properly managed. If they are needed for complete reinstall, they are slow if they work at all...
You can try Disk tools and run them on the TM sparse disk - and see, if you can fix it... But I suspect to fix this you may need to start again - delete the TM sparse disk from NAS and start again. At least that is all what I was ever able to do myself when this happened before to me. To be fair, OSX always came and said that the TM disk is bad and it needs to start again. I lost all prior backups and it took unreasonable amount of time to do "first backup" again.
I suggest you get external (USB3) disk (or docking station/enclosure+disk) and use that for TM. It does not have to be connected all the time, I pull mine out once a week or so, let computer finish one or two TM backups and store it again. You can also use one (large enough) TM disk for multiple computers. Disks today are ridiculously cheap.
Such disks are much faster to use - and also more reliable and easier to use.
Also, it may be helpful to get at the same time another external disk and do routine (one a week?) backup to that disk using Carbon Copy Cloner. That can be made to be bootable, so if something fails, just boot on that CCC backup and your life is much easier for recovery...
 

harriska2

macrumors 65816
Mar 16, 2011
1,133
572
Oregon
I have poor experience with NAS TM disks.
They cannot be fixed and even properly managed. If they are needed for complete reinstall, they are slow if they work at all...
You can try Disk tools and run them on the TM sparse disk - and see, if you can fix it... But I suspect to fix this you may need to start again - delete the TM sparse disk from NAS and start again. At least that is all what I was ever able to do myself when this happened before to me. To be fair, OSX always came and said that the TM disk is bad and it needs to start again. I lost all prior backups and it took unreasonable amount of time to do "first backup" again.
I suggest you get external (USB3) disk (or docking station/enclosure+disk) and use that for TM. It does not have to be connected all the time, I pull mine out once a week or so, let computer finish one or two TM backups and store it again. You can also use one (large enough) TM disk for multiple computers. Disks today are ridiculously cheap.
Such disks are much faster to use - and also more reliable and easier to use.
Also, it may be helpful to get at the same time another external disk and do routine (one a week?) backup to that disk using Carbon Copy Cloner. That can be made to be bootable, so if something fails, just boot on that CCC backup and your life is much easier for recovery...
This is what I do, run a second WD 10tb external usb3 drive for time machine. It cost $180 during black friday at bestbuy.com. Another macrumors person tipped me off. We bought 3 of them and they work a treat.
 

treekram

macrumors 68000
Nov 9, 2015
1,849
401
Honolulu HI
If you had a MBP "from 2018" running Sierra, it wouldn't be a 2018-model, more likely a 2017 model bought in 2018?

Check to see if you have kernel panic logs from the restarts. In the Console app, look under "System Reports" on the left, in the middle section, see if you have a log that starts with "Kernel_" and ends in ".panic". If it does, if you can post one of these files that originate from the restart, there may be information there on what's going on.
 

Paul1977

macrumors newbie
Original poster
Feb 28, 2019
2
0
If you had a MBP "from 2018" running Sierra, it wouldn't be a 2018-model, more likely a 2017 model bought in 2018?

Check to see if you have kernel panic logs from the restarts. In the Console app, look under "System Reports" on the left, in the middle section, see if you have a log that starts with "Kernel_" and ends in ".panic". If it does, if you can post one of these files that originate from the restart, there may be information there on what's going on.
True -> 2017 model bought in 2018...

Below the Kernel file. Thanks in advance!




Thu Feb 28 15:20:13 2019

*** Panic Report ***
panic(cpu 0 caller 0xffffff801a9bb2c9): "overflow detected"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4903.241.1/osfmk/mach/vm_param.h:364
Backtrace (CPU 0), Frame : Return Address
0xffffff92462ab080 : 0xffffff801a9aeb0d
0xffffff92462ab0d0 : 0xffffff801aae8653
0xffffff92462ab110 : 0xffffff801aada07a
0xffffff92462ab180 : 0xffffff801a95bca0
0xffffff92462ab1a0 : 0xffffff801a9ae527
0xffffff92462ab2c0 : 0xffffff801a9ae373
0xffffff92462ab330 : 0xffffff801a9bb2c9
0xffffff92462ab3a0 : 0xffffff801a9bb321
0xffffff92462ab3c0 : 0xffffff7fa09a4135
0xffffff92462ab540 : 0xffffff7fa09dbed2
0xffffff92462ab600 : 0xffffff7fa09c965c
0xffffff92462ab820 : 0xffffff7fa09c1cdc
0xffffff92462ab8c0 : 0xffffff801ac04086
0xffffff92462abb00 : 0xffffff801ac05dce
0xffffff92462abf00 : 0xffffff801ac053b6
0xffffff92462abf40 : 0xffffff801afb62bb
0xffffff92462abfa0 : 0xffffff801a95c466
Kernel Extensions in backtrace:
com.apple.filesystems.hfs.kext(407.200.4)[C802AB49-117F-3215-868B-CDC96BB3D1CF]@0xffffff7fa098f000->0xffffff7fa09f7fff
dependency: com.apple.filesystems.hfs.encodings.kext(1)[A5FC0D67-8BFA-3B5B-AB73-1A07DDF2C200]@0xffffff7f9ba5e000

BSD process name corresponding to current thread: mount_hfs

Mac OS version:
18D109

Kernel version:
Darwin Kernel Version 18.2.0: Thu Dec 20 20:46:53 PST 2018; root:xnu-4903.241.1~1/RELEASE_X86_64
Kernel UUID: 1970B070-E53F-3178-83F3-1B95FA340695
Kernel slide: 0x000000001a600000
Kernel text base: 0xffffff801a800000
__HIB text base: 0xffffff801a700000
System model name: MacBookPro14,3 (Mac-551B86E5744E2388)

System uptime in nanoseconds: 5981702747075
last loaded kext at 4015543695797: com.apple.filesystems.afpfs 11.1 (addr 0xffffff7fa1870000, size 356352)
loaded kexts:
com.bitdefender.TMProtection 5.0.0
com.bitdefender.FileProtect 1
com.avg.PacketForwarder 2.1
com.avg.FileShield 4.0.0
com.logitech.driver.LogiGamingMouseFilter 1
com.driver.LogJoystick 2.0
com.bitdefender.SelfProtect 1.2.12
com.logitech.driver.LogiWheelDriver 1
com.apple.filesystems.afpfs 11.1
com.apple.nke.asp-tcp 8.0.2
com.apple.filesystems.smbfs 3.3.1
com.apple.filesystems.msdosfs 1.10
com.apple.fileutil 18.306.12
com.apple.driver.AudioAUUC 1.70
com.apple.filesystems.autofs 3.0
com.apple.driver.AGPM 110.23.46
com.apple.driver.ApplePlatformEnabler 2.7.0d0
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.AppleUpstreamUserClient 3.6.5
com.apple.kext.AMDFramebuffer 2.0.4
com.apple.kext.AMDRadeonX4000 2.0.4
com.apple.driver.AppleHIDALSService 1
com.apple.driver.AppleGraphicsDevicePolicy 3.28.4
com.apple.AGDCPluginDisplayMetrics 3.28.4
com.apple.driver.AppleHDAHardwareConfigDriver 282.10
com.apple.driver.AppleHDA 282.10
com.apple.driver.AppleHV 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 6.0.10f1
com.apple.driver.pmtelemetry 1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleIntelKBLGraphics 12.0.4
com.apple.driver.AGDCBacklightControl 3.28.4
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleIntelPCHPMC 2.0.1
com.apple.driver.AppleFIVRDriver 4.1.0
com.apple.driver.AppleBacklight 170.12.11
com.apple.kext.AMD9500Controller 2.0.4
com.apple.driver.eficheck 1
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com.apple.driver.AppleIntelKBLGraphicsFramebuffer 12.0.4
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com.apple.driver.SMCMotionSensor 3.0.4d1
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com.apple.filesystems.hfs.kext 407.200.4
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.BootCache 40
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com.apple.driver.DspFuncLib 282.10
com.apple.kext.OSvKernDSPLib 527
com.apple.iokit.IOAVBFamily 710.1
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com.apple.iokit.IOEthernetAVBController 1.1.0
com.apple.driver.AppleSSE 1.0
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com.apple.AppleGPUWrangler 3.28.4
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EOF

System Profile:
Network Service: Wi-Fi, AirPort, en0
Boot Volume File System Type: apfs
Memory Module: BANK 0/DIMM0, 8 GB, LPDDR3, 2133 MHz, 0x802C, 0x4D5435324C31473332443450472D30393320
Memory Module: BANK 1/DIMM0, 8 GB, LPDDR3, 2133 MHz, 0x802C, 0x4D5435324C31473332443450472D30393320
USB Device: USB 3.0 Bus
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: USB Receiver
USB Device: Keyboard Hub
USB Device: Apple Keyboard
USB Device: iBridge
USB Device: USB3.0 Hub
Thunderbolt Bus: MacBook Pro, Apple Inc., 39.2
Thunderbolt Bus: MacBook Pro, Apple Inc., 39.2
Model: MacBookPro14,3, BootROM 185.0.0.0.0, 4 processors, Intel Core i7, 2,8 GHz, 16 GB, SMC 2.45f0
Graphics: Radeon Pro 555, Radeon Pro 555, PCIe
Graphics: Intel HD Graphics 630, Intel HD Graphics 630, Built-In
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x173), Broadcom BCM43xx 1.0 (7.77.61.1 AirPortDriverBrcmNIC-1305.2)
Bluetooth: Version 6.0.10f1, 3 services, 27 devices, 1 incoming serial ports
 

treekram

macrumors 68000
Nov 9, 2015
1,849
401
Honolulu HI
I would try starting the computer in safe mode.
https://support.apple.com/en-us/HT201262

There are various things you should try:
1) In safe mode, see if you have access to your NAS.
2) If you have access to your NAS in safe mode, try doing a TM backup.
3) If the TM backup works in safe mode, reboot the computer so it's in the regular mode and see if you can do another backup to the NAS.

Report back the results of these tests.