High Sierra freeze

Thanks for the article--good read. However, I have no evidence or reason to believe that the freezes I was experiencing while using High Sierra were the result of any kind of hack of my EFI. I think that in all likelihood, High Sierra just has a few lingering kinks that need to be worked out for certain system configurations. Rather than waiting for Apple to perhaps patch these at some future date, I opted instead to start fresh with a clean install of an older, less demanding OS. For me and my 2012 iMac, at any rate, this has proven to be a great workaround.

I have, however, submitted all my console logs and crash reports to Apple through the developer bug reporter, along with a description of what happened when I was running High Sierra, so hopefully they will be looking into the freezing issue(s) soon.

I have experienced the same lockup, and - my new MacBook Pro (15-inch, 2017) was installed by recovering from a time-machine backup of a MacBook Pro (15-inch, 2013) also running high-sierra.

Given that, explanation that this might be related to extensions (had the same extensions on the old mac) or something specific to my account settings, is less than convinecing

christopherxenyo wrote:

Thanks for the article--good read. However, I have no evidence or reason to believe that the freezes I was experiencing while using High Sierra were the result of any kind of hack of my EFI. I think that in all likelihood, High Sierra just has a few lingering kinks that need to be worked out for certain system configurations. Rather than waiting for Apple to perhaps patch these at some future date, I opted instead to start fresh with a clean install of an older, less demanding OS. For me and my 2012 iMac, at any rate, this has proven to be a great workaround.

I have, however, submitted all my console logs and crash reports to Apple through the developer bug reporter, along with a description of what happened when I was running High Sierra, so hopefully they will be looking into the freezing issue(s) soon.

No I'm not suggesting you were hacked

There's apparently a rampant epidemic of mismatched EFI's throughout the mac kingdom and wiping your drive completely would have forced a fresh install of it

Unfortunately I've tried your options. And no positive result. Still freezes.

And another problem is when opening a file from the server a pop-up screen appears and states an iconlike Filevault with the message '... is controlling the file.' After a while the file opens.

If all else fails, back up your critical files, wipe your hard drive and do a clean install of Sierra or El Capitan. I did, and as you can see from my other posts in this thread, I do not regret it for one instant. It solves the freezes, and it runs faster since it is a less demanding OS.

I started my MacBook in SafeBoot Thursday night, with among other things, clears out system (and font) cache. Restarted and it hasn't froze since. I still have graphic glitches and the windowserver memory is still high though.

Hi, I have had a similar problem. It usually occurred when I was using more than one app at a time or switching user. The apps stop responding and then when I try to close down I got a black screen with an enlarged pointer and nothing happened, the machine had to be shut down by hard reset of the on/off button. I have tried many fixes from deleting and all internet plugins to only working in privacy mode. None worked. I am sending this after Apple support suggested reinstalling High Sierra. So far so good but if it crashes again I will let you know. I have had 4 calls to Apple and everyone has been most supportive but so far have not resolved the issue.

Hi, I have had a similar problem. It usually occurred when I was using more than one app at a time or switching user. The apps stop responding and then when I try to close down I got a black screen with an enlarged pointer and nothing happened, the machine had to be shut down by hard reset of the on/off button. I have tried many fixes from deleting and all internet plugins to only working in privacy mode. None worked. I am sending this after Apple support suggested reinstalling High Sierra. So far so good but if it crashes again I will let you know. I have had 4 calls to Apple and everyone has been most supportive but so far have not resolved the issue.

I have a MacBook Pro retina 2012, too, and i can confirm that external monitors are the main reason for the freezes. But it seems not every monitor but 4k in particular. I switched to an older non 4k monitor and had no issues since.

I updated to the High Sierra three days ago, and in addition to the Adobe CC package not working properly, my MacPro freezes several times a day, typically if it has been left unused for more than 10-15 minutes. I have tried to turn the screen saver on and off - no difference there.

If iTunes is running, the music plays on, so it's typically only the freezing screens, but there are no courses, neither mouse nor keyboard seems to work. The only option is to restart on the power button.

I have tried to reinstall High Sierra again, but it is the same problem.

It's really a big problem - and I hope Apple is working on a quick fix as it's impossible to work on such an unstable machine :-(

MacPro 3,5 GHz 6-Core Intel Xeon E5

64 GB 1866 Max DDR3

2 x AMD FirePro D700 6 GB

1 TB Apple SSD SM1024F

Pegasus2 R4 RAID

3 x Apple LED Cinema Display

Mark,

There seems to be a specific issue with the Mac Pro, I have the same system spec. but without raid and with different monitors - check your system log for "com.apple.DumpGPURestart" for confirmation and, please report it to Apple, we need as many voices as possible as we're all loosing many working hours restarting and re-doing work. Thanks.

I suspect there's two different issues:

1. All Apple computers occasionally freeze with High Sierra - seems to be MacBook and iMac as far as I can tell. I'd love to see the system log at the time of the failure. Perhaps this is file system related?

2. Mac Pro suffers from screen freeze after a period of inactivity. -> log fills with com.apple.DumpGPURestart. This is a GPU driver issue - I'd bet on it.

My Mac Pro runs all day without issue (other than slow iCloud updates, spinny-beachball, etc.) but when left for a few hours without activity, the screen freezes and the log fills with com.apple.DumpGPURestart. The machine is still accessible via SSH and can be safely shutdown, though not powered off.

I have the same problem. Started immediately after I upgraded to High Sierra. I reset the ram, started up in safe mode, tried using the guest account, upgraded and reinstalled my apps... aaaand nothing worked. Thanks to the person who posted that downgrading didn't resolve the issue, and to the other person who suggested that the firmware upgrade, that's part of the High Sierra OS upgrade, may be part of the reason why the downgrade didn't work. That saved me a lot of time downgrading my machine.

It seems to happen on a wide variety of Macs and the newer ones appear to be affected as well. My MacBook pro is a 2013 model, and prerequisites for High Sierra say that it's supported.

So I guess now we wait and hopefully enough of us post on here that Apples takes note of the issue.

Apple: You could at least acknowledge that there is an issue. We promise to still to love you..

2 times today, my MacPro has restarted after it has been unused for a shorter period of time.

This is the problem report that appears - after involuntary restart:

Notice this line:

BSD process name corresponding to current thread: WindowServer

Anonymous UUID: 0DF5D103-B7C8-8DC9-4ED9-447D6094578F

Mon Oct 16 16:33:15 2017

*** Panic Report ***

panic(cpu 2 caller 0xffffff800538a611): Kernel trap at 0xffffff7f87ea82f4, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0xffffff8726157000, CR3: 0x0000000fe7df8060, CR4: 0x00000000001626e0

RAX: 0x0000000000000000, RBX: 0xffffff869bccc000, RCX: 0xffffff7f8832a068, RDX: 0x0000000000000360

RSP: 0xffffff874d153498, RBP: 0xffffff874d1534a0, RSI: 0xffffff8726157000, RDI: 0xffffff80a8dbe000

R8: 0x0000000000000360, R9: 0x0000000000000000, R10: 0x0000000000000010, R11: 0x0000000000000000

R12: 0xffffff7f87ea5a4c, R13: 0xffffff874d1535e8, R14: 0x0000000000000360, R15: 0xffffff8726157000

RFL: 0x0000000000010246, RIP: 0xffffff7f87ea82f4, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0xffffff8726157000, Error code: 0x0000000000000000, Fault CPU: 0x2, PL: 0, VF: 1

Backtrace (CPU 2), Frame : Return Address

0xffffff874d152f50 : 0xffffff800526d366

0xffffff874d152f90 : 0xffffff8005398494

0xffffff874d152fd0 : 0xffffff800538a429

0xffffff874d153050 : 0xffffff800521f190

0xffffff874d153070 : 0xffffff800526cd8c

0xffffff874d1531a0 : 0xffffff800526cafc

0xffffff874d153200 : 0xffffff800538a611

0xffffff874d153380 : 0xffffff800521f190

0xffffff874d1533a0 : 0xffffff7f87ea82f4

0xffffff874d1534a0 : 0xffffff7f87e45110

0xffffff874d153510 : 0xffffff7f87e44e0d

0xffffff874d153590 : 0xffffff7f87e4313c

0xffffff874d1535d0 : 0xffffff7f87e447e1

0xffffff874d153620 : 0xffffff7f87d9cb63

0xffffff874d153670 : 0xffffff7f87da6769

0xffffff874d1536b0 : 0xffffff7f87da6664

0xffffff874d1536e0 : 0xffffff7f87db9d1c

0xffffff874d153750 : 0xffffff7f87e4c31a

0xffffff874d153780 : 0xffffff7f87dd555b

0xffffff874d1537d0 : 0xffffff80058a5878

0xffffff874d153840 : 0xffffff7f87dd0afa

0xffffff874d153870 : 0xffffff7f87dd298e

0xffffff874d1538e0 : 0xffffff7f87da43ff

0xffffff874d153920 : 0xffffff7f87dd04e2

0xffffff874d153960 : 0xffffff7f862558b9

0xffffff874d153a00 : 0xffffff7f8624304e

0xffffff874d153a40 : 0xffffff7f8625334a

0xffffff874d153a80 : 0xffffff7f86252fe2

0xffffff874d153ac0 : 0xffffff7f86259573

0xffffff874d153ae0 : 0xffffff80058cf278

0xffffff874d153b10 : 0xffffff800533fc6b

0xffffff874d153b50 : 0xffffff8005272655

0xffffff874d153ba0 : 0xffffff800524fbdd

0xffffff874d153bf0 : 0xffffff8005272d20

0xffffff874d153c30 : 0xffffff800525a27e

0xffffff874d153cb0 : 0xffffff800525d1cc

0xffffff874d153cf0 : 0xffffff80052979ac

0xffffff874d153d30 : 0xffffff8005728188

0xffffff874d153da0 : 0xffffff8005727ee3

0xffffff874d153e10 : 0xffffff80057419dd

0xffffff874d153e90 : 0xffffff8005741e37

0xffffff874d153ee0 : 0xffffff8005265b4f

0xffffff874d153f30 : 0xffffff800521f15c

Kernel Extensions in backtrace:

com.apple.iokit.IOGraphicsFamily(517.17)[05FC87E8-B78E-319E-AF08-0EBDA16094CE]@ 0xffffff7f8623a000->0xffffff7f8627ffff

dependency: com.apple.iokit.IOPCIFamily(2.9)[DF1517A2-32C4-328E-9890-03E6C546604A]@0xffffff 7f85a94000

com.apple.iokit.IOAcceleratorFamily2(373.0)[AC1A34E9-9E45-3D8E-BE76-C420370D285 2]@0xffffff7f87d99000->0xffffff7f87e2efff

dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[E7A0455F-CB75-3470-9447-EFBBC3 E13D02]@0xffffff7f86200000

dependency: com.apple.iokit.IOSurface(209)[9D4ADF2A-E6F7-3BFE-B5FF-8C7317DF164B]@0xffffff7f 87d7d000

dependency: com.apple.iokit.IOPCIFamily(2.9)[DF1517A2-32C4-328E-9890-03E6C546604A]@0xffffff 7f85a94000

dependency: com.apple.iokit.IOGraphicsFamily(517.17)[05FC87E8-B78E-319E-AF08-0EBDA16094CE]@ 0xffffff7f8623a000

com.apple.kext.AMDRadeonX4000(1.5.8)[368DFF48-4ED5-3146-86A9-CED7F8FE70D4]@0xff ffff7f87e3f000->0xffffff7f886bcfff

dependency: com.apple.iokit.IOSurface(209)[9D4ADF2A-E6F7-3BFE-B5FF-8C7317DF164B]@0xffffff7f 87d7d000

dependency: com.apple.iokit.IOPCIFamily(2.9)[DF1517A2-32C4-328E-9890-03E6C546604A]@0xffffff 7f85a94000

dependency: com.apple.iokit.IOGraphicsFamily(517.17)[05FC87E8-B78E-319E-AF08-0EBDA16094CE]@ 0xffffff7f8623a000

dependency: com.apple.iokit.IOAcceleratorFamily2(373)[AC1A34E9-9E45-3D8E-BE76-C420370D2852] @0xffffff7f87d99000

BSD process name corresponding to current thread: WindowServer

Mac OS version:

17A405

Kernel version:

Darwin Kernel Version 17.0.0: Thu Aug 24 21:48:19 PDT 2017; root:xnu-4570.1.46~2/RELEASE_X86_64

Kernel UUID: B84FDEFC-9081-35CE-8C51-25A9583AACDE

Kernel slide: 0x0000000005000000

Kernel text base: 0xffffff8005200000

__HIB text base: 0xffffff8005100000

System model name: MacPro6,1 (Mac-F60DEB81FF30ACF6)

System uptime in nanoseconds: 8674572609825

last loaded kext at 8274515125562: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7f8b780000, size 32768)

last unloaded kext at 8434888684499: com.apple.driver.AppleXsanScheme 3 (addr 0xffffff7f8b780000, size 32768)

loaded kexts:

com.kensington.trackballworks.driver 1.2.0

com.promise.driver.stex 6.2.9

com.apple.filesystems.afpfs 11.1

com.apple.nke.asp-tcp 8.0.2

com.apple.driver.AppleTopCaseHIDEventDriver 127

com.apple.driver.ApplePlatformEnabler 2.7.0d0

com.apple.driver.AGPM 110.23.24

com.apple.driver.X86PlatformShim 1.0.0

com.apple.filesystems.autofs 3.0

com.apple.iokit.SCSITaskUserClient 404

com.apple.driver.AppleHDA 280.12

com.apple.driver.AppleGraphicsDevicePolicy 3.16.19

com.apple.AGDCPluginDisplayMetrics 3.16.19

com.apple.driver.AppleUpstreamUserClient 3.6.4

com.apple.driver.AppleMCCSControl 1.5.3

com.apple.driver.AppleHV 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.kext.AMDFramebuffer 1.5.8

com.apple.iokit.IOBluetoothSerialManager 6.0.0f7

com.apple.driver.pmtelemetry 1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.eficheck 1

com.apple.kext.AMDRadeonX4000 1.5.8

com.apple.AVEBridge 1.0.0

com.apple.driver.AppleLPC 3.1

com.apple.kext.AMD7000Controller 1.5.8

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleMGPUPowerControl 3.16.19

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleIntelMCEReporter 107

com.apple.driver.AppleThunderboltIP 3.1.0

com.apple.driver.AppleUSBDisplays 380

com.apple.driver.AppleRAID 5.1.0

com.apple.filesystems.apfs 748.1.47

com.apple.filesystems.hfs.kext 407.1.3

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.BootCache 40

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.driver.AppleFWOHCI 5.5.8

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.driver.AirPort.BrcmNIC 1200.25.1a1

com.apple.driver.AppleAHCIPort 329

com.apple.driver.AppleACPIEC 6.1

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 220.0.0

com.apple.nke.applicationfirewall 183

com.apple.security.TMSafetyNet 8

com.apple.security.quarantine 3

com.apple.IOBufferCopyEngineTest 1

com.apple.driver.AppleIntelCPUPowerManagement 220.0.0

com.apple.security.SecureRemotePassword 1.0

com.apple.driver.AppleHIDKeyboard 203

com.apple.driver.AppleActuatorDriver 1004.1

com.apple.driver.AppleMultitouchDriver 1004.1

com.apple.driver.AppleInputDeviceSupport 1000

com.apple.driver.AppleHSBluetoothDriver 127

com.apple.driver.IOBluetoothHIDDriver 6.0.0f7

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 280.12

com.apple.kext.OSvKernDSPLib 526

com.apple.iokit.IOTimeSyncFamily 600.15

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.driver.AppleSSE 1.0

com.apple.iokit.IOSerialFamily 11

com.apple.iokit.IOAcceleratorFamily2 373

com.apple.iokit.IOSurface 209

com.apple.AppleGPUWrangler 3.16.19

com.apple.driver.AppleHDAController 280.12

com.apple.iokit.IOHDAFamily 280.12

com.apple.kext.AMDSupport 1.5.8

com.apple.AppleGraphicsDeviceControl 3.16.19

com.apple.iokit.IOFireWireIP 2.2.8

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleGraphicsControl 3.16.19

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 517.17

com.apple.iokit.IOGraphicsFamily 517.17

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.iokit.IOUSBHIDDriver 900.4.1

com.apple.driver.AppleUSBAudio 310.35

com.apple.iokit.IOAudioFamily 206.5

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleThunderboltDPOutAdapter 5.0.2

com.apple.driver.AppleThunderboltPCIUpAdapter 2.1.3

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.0f7

com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.0f7

com.apple.iokit.IOBluetoothHostControllerTransport 6.0.0f7

com.apple.iokit.IOBluetoothFamily 6.0.0f7

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.driver.usb.AppleUSBHub 1.2

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.filesystems.hfs.encodings.kext 1

com.apple.driver.AppleThunderboltDPInAdapter 5.0.2

com.apple.driver.AppleThunderboltDPAdapterFamily 5.0.2

com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3

com.apple.iokit.IOFireWireFamily 4.6.8

com.apple.iokit.IOSCSIParallelFamily 3.0.0

com.apple.driver.AppleThunderboltNHI 4.5.6

com.apple.iokit.IOThunderboltFamily 6.5.8

com.apple.iokit.IOAHCIBlockStorage 301.1.2

com.apple.driver.usb.AppleUSBXHCIPCI 1.2

com.apple.driver.usb.AppleUSBXHCI 1.2

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.3

com.apple.driver.corecapture 1.0.4

com.apple.driver.usb.AppleUSBEHCIPCI 1.2

com.apple.driver.usb.AppleUSBEHCI 1.2

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.driver.AppleUSBHostMergeProperties 1.2

com.apple.iokit.IOSMBusFamily 1.1

com.apple.driver.AppleEFINVRAM 2.1

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.driver.AppleEFIRuntime 2.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.iokit.IOBufferCopyEngineFamily 1

com.apple.driver.DiskImages 480.1.2

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleUSBTDM 439

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.iokit.IOUSBMassStorageDriver 140

com.apple.iokit.IOSCSIBlockCommandsDevice 404

com.apple.iokit.IOSCSIArchitectureModelFamily 404

com.apple.iokit.IOStorageFamily 2.1

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.KernelRelayHost 1

com.apple.iokit.IOUSBHostFamily 1.2

com.apple.driver.usb.AppleUSBCommon 1.0

com.apple.driver.AppleBusPowerController 1.0

com.apple.driver.AppleSEPManager 1.0.1

com.apple.driver.IOSlaveProcessor 1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 6.1

com.apple.driver.AppleSMCRTC 1.0

com.apple.driver.AppleSMC 3.1.9

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.pthread 1

com.apple.kec.Libm 1

com.apple.kec.corecrypto 1.0

EOF

Model: MacPro6,1, BootROM MP61.0120.B00, 6 processors, 6-Core Intel Xeon E5, 3,5 GHz, 64 GB, SMC 2.20f18

Graphics: AMD FirePro D700, AMD FirePro D700, PCIe, 6 GB

Graphics: AMD FirePro D700, AMD FirePro D700, PCIe, 6 GB

Memory Module: DIMM1, 16 GB, DDR3 ECC, 1866 MHz, 0x80AD, 0x484D54343247523741465234432D52442020

Memory Module: DIMM2, 16 GB, DDR3 ECC, 1866 MHz, 0x80AD, 0x484D54343247523741465234432D52442020

Memory Module: DIMM3, 16 GB, DDR3 ECC, 1866 MHz, 0x80AD, 0x484D54343247523741465234432D52442020

Memory Module: DIMM4, 16 GB, DDR3 ECC, 1866 MHz, 0x80AD, 0x484D54343247523741465234432D52442020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x135), Broadcom BCM43xx 1.0 (7.77.37.0.1a1)

Bluetooth: Version 6.0.0f7, 3 services, 27 devices, 1 incoming serial ports

Network Service: Ethernet 1, Ethernet, en0

PCI Card: AMD FirePro D700, Display Controller, Slot-1

PCI Card: AMD FirePro D700, Display Controller, Slot-2

PCI Card: pci105a,8760, RAID Controller, Thunderbolt@231,0,0

PCI Card: pci1b21,612, AHCI Controller, Thunderbolt@235,0,0

PCI Card: pci11c1,5901, IEEE 1394 Open HCI, Thunderbolt@239,0,0

Serial ATA Device: APPLE SSD SM1024F, 1 TB

Serial ATA Device: WDC WD40EFRX-68WT0N0, 4 TB

Serial ATA Device: WDC WD40EFRX-68WT0N0, 4 TB

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: USB 3.0 Bus

USB Device: USB 2.0 Hub [MTT]

USB Device: USB 2.0 Hub [MTT]

USB Device: Bose USB Audio

USB Device: Hub

USB Device: Kensington Expert Mouse

USB Device: Apple LED Cinema Display

USB Device: Display iSight

USB Device: Display Audio

USB Device: Hub

USB Device: Apple LED Cinema Display

USB Device: Display iSight

USB Device: Display Audio

USB Device: Hub

USB Device: Apple LED Cinema Display

USB Device: Display iSight

USB Device: Display Audio

FireWire Device: unknown_device, Unknown

Thunderbolt Bus: Mac Pro, Apple Inc., 19.2

Thunderbolt Bus: Mac Pro, Apple Inc., 19.2

Thunderbolt Bus: Mac Pro, Apple Inc., 19.2

Thunderbolt Device: Pegasus2-R, Promise Technology, Inc., 1, 19.2

com.apple.DumpGPURestart can be found in system.log. I read it using Console app but it's located in /private/var/log/system.log

You can also look at the old system.log in the console app too under /var/log