Level 1

42 points

iMac Pro restarting because of a problem?

iMac Pro intially booted as a Mac Pro backup, then reverted and reinstalled fresh High Sierra because of some compatibility issues, now getting forced restarts with this error code, thank you for any help!

{"caused_by":"macos","macos_system_state":"running","bug_type":"210","os_version ":"Bridge OS 2.0 (15P2064)","timestamp":"2018-01-12 06:47:28.38 +0000","incident_id":"3D1765A6-5583-44EF-9F16-BABB863EF278"}

{

"build" : "Bridge OS 2.0 (15P2064)",

"product" : "iBridge2,1",

"kernel" : "Darwin Kernel Version 17.3.0: Thu Nov 30 19:54:28 PST 2017; root:xnu-4570.37.11~2\/RELEASE_ARM64_T8010",

"incident" : "3D1765A6-5583-44EF-9F16-BABB863EF278",

"crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",

"date" : "2018-01-12 06:47:28.05 +0000",

"panicString" : "panic(cpu 0 caller 0xfffffff0070fb3ec): macOS panic detected\nDebugger message: panic\nMemory ID: 0x6\nOS version: 15P2064\nKernel version: Darwin Kernel Version 17.3.0: Thu Nov 30 19:54:28 PST 2017; root:xnu-4570.37.11~2\/RELEASE_ARM64_T8010\nKernelCache UUID: D342183B0DC346B22ADABA5BB3219178\niBoot version: iBoot-4076.37.9\nsecure boot?: YES\nx86 EFI Boot State: 0xe\nx86 System State: 0x0\nx86 Power State: 0x0\nPaniclog version: 9\nKernel slide: 0x0000000000800000\nKernel text base: 0xfffffff007804000\nEpoch Time: sec usec\n
Boot : 0x5a57ac79 0x00085f05\n
Sleep
: 0x00000000 0x00000000\n
Wake : 0x00000000 0x00000000\n
Calendar: 0x5a5859ed 0x000e98dd\n\nPanicked task 0xffffffe0002eb610: 3545 pages, 156 threads: pid 0: kernel_task\nPanicked thread: 0xffffffe000314000, backtrace: 0xffffffe017f43550, tid: 334\n\t\t
lr: 0xfffffff0079f32e0
fp: 0xffffffe017f43690\n\t\t
lr: 0xfffffff0078dd588
fp: 0xffffffe017f436a0\n\t\t
lr: 0xfffffff00790dce4
fp: 0xffffffe017f43a10\n\t\t
lr: 0xfffffff00790dff4
fp: 0xffffffe017f43a50\n\t\t
lr: 0xfffffff00790f874
fp: 0xffffffe017f43a70\n\t\t
lr: 0xfffffff0070fb3ec
fp: 0xffffffe017f43ae0\n\t\t
lr: 0xfffffff0070fd674
fp: 0xffffffe017f43b80\n\t\t
lr: 0xfffffff0070fabac
fp: 0xffffffe017f43c00\n\t\t
lr: 0xfffffff0070bab08
fp: 0xffffffe017f43c30\n\t\t
lr: 0xfffffff007d56064
fp: 0xffffffe017f43c60\n\t\t
lr: 0xfffffff007d559b0
fp: 0xffffffe017f43c90\n\t\t
lr: 0xfffffff0078e84e0
fp: 0x0000000000000000\n\n",

"panicFlags" : "0x102",

"otherString" : "\n** Stackshot Succeeded ** Bytes Traced 73568 **\n",

"macOSPanicFlags" : "0x4",

"macOSPanicString" : "panic(cpu 0 caller 0xffffff8008f4bd7f): \"TLB invalidation IPI timeout, unresponsive CPU bitmap: 0x40, NMIPI acks: 0x0, now: 0x0, deadline: 9665438133613\"@\/BuildRoot\/Library\/Caches\/com.apple.xbs\/Sources\/xnu\/xnu- 4570.37.11\/osfmk\/x86_64\/pmap.c:2797\nBacktrace (CPU 0), Frame : Return Address\n0xffffffce4ac3af70 : 0xffffff8008e4f5f6 \n0xffffffce4ac3afc0 : 0xffffff8008f7c6f4 \n0xffffffce4ac3b000 : 0xffffff8008f6e109 \n0xffffffce4ac3b080 : 0xffffff8008e01120 \n0xffffffce4ac3b0a0 : 0xffffff8008e4f02c \n0xffffffce4ac3b1d0 : 0xffffff8008e4edac \n0xffffffce4ac3b230 : 0xffffff8008f79db8 \n0xffffffce4ac3b280 : 0xffffff8008e4f15a \n0xffffffce4ac3b2d0 : 0xffffff8008f7c6f4 \n0xffffffce4ac3b310 : 0xffffff8008f6e109 \n0xffffffce4ac3b390 : 0xffffff8008e01120 \n0xffffffce4ac3b3b0 : 0xffffff8008e4f02c \n0xffffffce4ac3b4e0 : 0xffffff8008e4edac \n0xffffffce4ac3b540 : 0xffffff8008f4bd7f \n0xffffffce4ac3b5e0 : 0xffffff8008f52ac4 \n0xffffffce4ac3b6c0 : 0xffffff8008f53a94 \n0xffffffce4ac3b720 : 0xffffff8008edbb1f \n0xffffffce4ac3b850 : 0xffffff8008edb402 \n0xffffffce4ac3b890 : 0xffffff8008f03e5b \n0xffffffce4ac3b8d0 : 0xffffff800906d4d9 \n0xffffffce4ac3b8e0 : 0xffffff7f8e27a49c \n0xffffffce4ac3b970 : 0xffffff8009076622 \n0xffffffce4ac3bab0 : 0xffffff800907a2d6 \n0xffffffce4ac3bb50 : 0xffffff8009079c97 \n0xffffffce4ac3bc90 : 0xffffff800907e2c4 \n0xffffffce4ac3bd00 : 0xffffff7f8e278e7e \n0xffffffce4ac3bd90 : 0xffffff80090ada64 \n0xffffffce4ac3be40 : 0xffffff8009341d8a \n0xffffffce4ac3bee0 : 0xffffff8009341efe \n0xffffffce4ac3bf40 : 0xffffff80093fa0b8 \n0xffffffce4ac3bfa0 : 0xffffff8008e01906 \n Kernel Extensions in backtrace:\n com.apple.filesystems.afpfs(11.1)[18924E77-CD8C-34F7-9C9F-D11EACF8A795]@0xffffff 7f8e272000->0xffffff7f8e2c1fff\n dependency: com.apple.filesystems.hfs.encodings.kext(1)[F1862033-F96A-398C-8231-DC48CC99056 7]@0xffffff7f8a5ad000\n dependency: com.apple.security.SecureRemotePassword(1.0)[347C3F6A-3E70-3DA1-B3B8-CD3746576C E7]@0xffffff7f8e261000\n\nBSD process name corresponding to current thread: diskimages-helpe\n\nMac OS version:\n17C2205\n\nKernel version:\nDarwin Kernel Version 17.3.0: Thu Nov 30 16:32:47 PST 2017; root:xnu-4570.37.11~1\/RELEASE_X86_64\nKernel UUID: AB211A98-9AA0-3640-9478-D16ABD4093BB\nKernel slide: 0x0000000008a00000\nKernel text base: 0xffffff8008c00000\n__HIB
text base: 0xffffff8008b00000\nSystem model name: iMacPro1,1 (Mac-7BA5B2D9E42DDD94)\n\nSystem uptime in nanoseconds: 9666940877554\nlast loaded kext at 1987187667816: @filesystems.smbfs\t3.2 (addr 0xffffff7f8e2c2000, size 434176)\nloaded kexts:\ncom.uaudio.driver.UAFWAudio\t4.3.1 47542\ncom.uaudio.driver.UAD2System\t9.4.0\n@filesystems.smbfs\t3.2\n@filesyste ms.afpfs\t11.1\n@nke.asp-tcp\t8.0.2\n@filesystems.msdosfs\t1.10\n>!ATopCaseHIDEv entDriver\t127.1\n>!AUpstreamUserClient\t3.6.4\n@kext.AMDFramebuffer\t1.6.4\n@ke xt.AMDRadeonX5000\t1.6.4\n>!AGraphicsDevicePolicy\t3.16.21\n@AGDCPluginDisplayMe trics\t3.16.2\n>!AHV\t1\n|IOUserEthernet\t1.0.1\n|IO!BSerialManager\t6.0.3f4\n>p mtelemetry\t1\n>AGPM\t110.23.24\n>!APlatformEnabler\t2.7.0d0\n>X86PlatformShim\t 1.0.0\n@Dont_Steal_Mac_OS_X\t7.0.0\n>AudioAUUC\t1.70\n@kext.AMD10000!C\t1.6.4\n> AGDCBacklightControl\t3.16.2\n>ACPI_SMC_PlatformPlugin\t1.0.0\n>!ABacklight\t170 .10.2\n>!AThunderboltIP\t3.1.1\n>!ABridgeAudio!C\t3.97\n>!AGFXHDA\t100.1.4\n>!A! ISlowAdaptiveClocking\t4.0.0\n>!AFIVRDriver\t4.1.0\n>!A!IPCHPMC\t2.0.1\n>!AOSXWa tchdog\t1\n>BridgeAudioCommunication\t3.97\n>!AMCCSControl\t1.5.3\n@filesystems. autofs\t3.0\n>!AHIDALSService\t1\n>!U!SCoexistentDriver\t439.37.1\n>!UCardReader \t439.37.1\n>usb.!UHostBillboardDevice\t1.0\n|SCSITaskUserClient\t404.30.2\n@!AE thernetAquantiaAqtionFirmwareDev\t1.0.34\n@!AEthernetAquantiaAqtionFirmware\t1.0 .34\n>BCMWLANFirmware4364.Datastore\t1\n>!ABCMWLANCoreV3.Datastore\t1\n@filesyst ems.apfs\t748.37.18\n>!AFileSystemDriver\t3.0.1\n@filesystems.hfs.kext\t407.30.1 \n@BootCache\t40\n@!AFSCompression.!AFSCompressionTypeDataless\t1.0.0d1\n@!AFSCo mpression.!AFSCompressionTypeZlib\t1.0.0\n>!AAHCIPort\t329\n>!ABCMWLANBusInterfa cePCIe\t1\n>!AACPIButtons\t6.1\n>!ASMBIOS\t2.1\n>!AACPIEC\t6.1\n>!AAPIC\t1.7\n@n ke.applicationfirewall\t183\n$TMSafetyNet\t8\n$quarantine\t3\n@IOBufferCopyEngin eTest\t1\n$SecureRemotePassword\t1.0\n>usb.cdc.acm\t5.0.0\n>!AHIDKeyboard\t203\n >!AMultitouchDriver\t1204.13\n>!AInputDeviceSupport\t1201.8\n>!AHS!BDriver\t127. 1\n>IO!BHIDDriver\t6.0.3f4\n|IOAccelerator!F2\t376.6\n@kext.AMDRadeonX5000AccelL ibs\t1.4.4\n>!AGraphicsControl\t3.16.21\n>!ASSE\t1.0\n|IOSurface\t209.2.2\n@kext .AMDRadeonX5100HWLibs\t1.0\n>!AHDA!C\t280.12\n|IOHDA!F\t280.12\n@!AGPUWrangler\t 3.16.2\n>IOPlatformPluginLegacy\t1.0.0\n@kext.AMDSupport\t1.6.4\n@!AGraphicsDevi ceControl\t3.16.21\n>!ABacklightExpert\t1.1.0\n|IONDRVSupport\t517.22\n|IOFireWi re!F\t4.6.8\n>!UAudio\t311.9\n|IOAudio!F\t206.5\n@vecLib.kext\t1.2.0\n>!ASMBusPC I\t1.0.14d1\n|IO!BHost!CUARTTransport\t6.0.3f4\n|IO!BHost!CTransport\t6.0.3f4\n> !A!ILpssUARTv1\t3.0.60\n>!A!ILpssUARTCommon\t3.0.60\n>!AOnboardSerial\t1.0\n|IOS kywalk!F\t1\n|IOSlowAdaptiveClocking!F\t1.0.0\n>X86PlatformPlugin\t1.0.0\n>IOPla tformPlugin!F\t6.0.0d8\n@kext.AMDRadeonX5000HWServices\t1.6.4\n>!ASMBus!C\t1.0.1 8d1\n|IOGraphics!F\t517.22\n>!AThunderboltEDMSink\t4.1.2\n@kext.triggers\t1.0\n> usb.IOUSBHostHIDDevice\t1.2\n>usb.cdc.ecm\t5.0.0\n>usb.cdc.ncm\t5.0.0\n|IOUSBMas s!SClass\t4.0.4\n>usb.cdc\t5.0.0\n>usb.networking\t5.0.0\n>usb.!UHostCompositeDe vice\t1.2\n|IOAHCISerialATAPI\t267\n@filesystems.hfs.encodings.kext\t1\n>!AThund erboltDPOutAdapter\t5.0.2\n>!AThunderboltPCIUpAdapter\t2.1.3\n>!AHPM\t3.1.3\n>!A !ILpssI2C!C\t3.0.60\n>!A!ILpssDmac\t3.0.60\n>!A!ILpssI2C\t3.0.60\n>!AThunderbolt PCIDownAdapter\t2.1.3\n>!AThunderboltDPInAdapter\t5.0.2\n>!AThunderboltDPAdapter !F\t5.0.2\n|IOAHCIBlock!S\t301.20.1\n|IOAHCI!F\t288\n>!AXsanScheme\t3\n>!AThunde rboltNHI\t4.5.6\n|IOThunderbolt!F\t6.6.4\n>!UVHCI\t1.2\n>usb.!UVHCICommon\t1.0\n >!AEffaceableNOR\t1.0\n|IOBufferCopy!C\t1.0.0\n|IONVMe!F\t2.1.0\n>!ABCMWLANCore\ t1.0.0\n>IOImageLoader\t1.0.0\n|IOSerial!F\t11\n|IO80211!FV2\t1200.12.2\n>coreca pture\t1.0.4\n>!AEthernetAquantiaAqtion\t1.3.43\n>mDNSOffloadUserClient\t1.0.1b8 \n>!UMergeNub\t900.4.1\n>!UHostMergeProperties\t1.2\n>usb.!UXHCIPCI\t1.2\n>usb.! UXHCI\t1.2\n>usb.!UHostPacketFilter\t1.0\n|IOUSB!F\t900.4.1\n>!AEFINVRAM\t2.1\n| IOHID!F\t2.0.0\n>!AEFIRuntime\t2.1\n>!ASMCRTC\t1.0\n|IOSMBus!F\t1.1\n$sandbox\t3 00.0\n@kext.!AMatch\t1.0.0d1\n|IOBufferCopyEngine!F\t1\n>!AKeyStore\t2\n>!UTDM\t 439.37.1\n>!AMobileFileIntegrity\t1.0.5\n|IOUSBMass!SDriver\t140.30.1\n|IOSCSIBl ockCommandsDevice\t404.30.2\n|IOSCSIArchitectureModel!F\t404.30.2\n>!ACredential Manager\t1.0\n>KernelRelayHost\t1\n>!ASEPManager\t1.0.1\n>IOSlaveProcessor\t1\n> !AFDEKeyStore\t28.30\n>!AEffaceable!S\t1.0\n|IOTimeSync!F\t650.7\n|IONetworking! F\t3.4\n>DiskImages\t480.30.2\n|IO!S!F\t2.1\n|IO!B!F\t6.0.3f4\n|IOUSBHost!F\t1.2 \n>usb.!UCommon\t1.0\n>!ABusPower!C\t1.0\n|IOReport!F\t31\n>!AACPIPlatform\t6.1\ n>!ASMC\t3.1.9\n|IOPCI!F\t2.9\n|IOACPI!F\t1.4\n@kec.Libm\t1\n@kec.pthread\t1\n@k ec.corecrypto\t1.0\n",

"macOSOtherString" : "\n** In Memory Panic Stackshot Succeeded ** Bytes Traced 607744 **\n",

"macOSRawStackshotData" : "AAEEACAAAAAAA\/

"binaryImages" : [["d342183b-0dc3-46b2-2ada-ba5bb3219178",18446743936270598144,"U"],["00000000-0 000-0000-0000-000000000000",0,"A"],["d34499bb-a808-3dbb-8766-9aa38ce89f35",64424 50944,"S"]],

"notes" : ["Source: \/dev\/rdisk1","28 unindexed user-stack frames from 17 pids: 26,27,28,29,30,31,36,37,38,39,41,42,44,46,47,51,58"]

}

Model: iMacPro1,1, BootROM , 10 processors, Intel Xeon W, 3 GHz, 128 GB, SMC

Graphics: Radeon Pro Vega 64, Radeon Pro Vega 64, PCIe, 16 GB

Memory Module: NODE 1/CPU1_DIMM_A0, 32 GB, DDR4, 2666 MHz, Micron, 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2

Memory Module: NODE 1/CPU1_DIMM_B0, 32 GB, DDR4, 2666 MHz, Micron, 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2

Memory Module: NODE 1/CPU1_DIMM_C0, 32 GB, DDR4, 2666 MHz, Micron, 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2

Memory Module: NODE 1/CPU1_DIMM_D0, 32 GB, DDR4, 2666 MHz, Micron, 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2 36ASF4G72PZ-2G6D2

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x7BF), wl0: Nov
9 2017 09:46:34 version 9.100.30.0.32.1.18 FWID 01-57236d12

Bluetooth: Version 6.0.3f4, 3 services, 27 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Network Service: Wi-Fi, AirPort, en1

PCI Card: pci1b4b,9220, AHCI Controller, Thunderbolt@184,0,0

PCI Card: Universal Audio Apollo Twin - SOLO, Other Multimedia, Thunderbolt@68,0,0

Serial ATA Device: LaCie
2big v2 THB USB3 Raid 0, 6 TB

Serial ATA Device: MARVELL VIRTUAL

USB Device: USB 3.0 Bus

USB Device: Card Reader

USB Device: Logitech Webcam C930e

USB Device: Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter

USB Device: Gaming Mouse G502

USB Device: AppleUSBVHCIBCE

USB Device: Headset

USB Device: iBridge ALS

USB Device: iBridge FaceTime HD Camera (Built-in)

USB Device: iBridge

Thunderbolt Bus: iMac Pro, Apple Inc., 25.4

Thunderbolt Device: Apollo Twin, Universal Audio, Inc., 3, 7.1

Thunderbolt Bus: iMac Pro, Apple Inc., 25.4

Thunderbolt Device: 2big TBT2 USB3, LaCie, 1, 22.1

iMac Pro (2017), iOS 11.2.2, Restart / Crashing

Posted on Jan 12, 2018 4:02 PM

Top-ranking reply

dfpsmith

Level 1

4 points

Posted on Jan 23, 2019 10:51 AM

I was getting kernel panics, mostly while using Premiere/After Effects, also my wifi would sometimes freak out.

Took to apple care, they replaced the logic board, didn't help. After chatting with Apple support technicians and giving them all kinds of logs from the computer, they said it was related to the software on the computer not being able to contact a server and freaking out, making it kernel panic and restart.

I have little snitch installed on my computer to monitor internet traffic, I uninstalled it and changed over to the open source software Lulu instead and it completely fixed my problem. The computer has not had a single kernel panic in over a week, it used to have a panic 2-3 times per day while doing video editing.

Other things that helped reduce panics before I got to this solution:

Disconnected a USB-C iMac Pro Hub

Turned off Filevault

Turned off power saving features

Hope that helps someone else.

View in context

252 replies

Apr 11, 2018 7:18 AM in response to nickatnyte_

Same here...and I'm on my second iMacPro - the first one I returned and the new one have the same issue. And notice: I have this issue with ONLY macOS installed and running and NOTHING connected except electricity and LAN. It's TOTALLY "clean".

Some are on their THIRD iMacPro now with same issue, so I strongly suspect macOS/firmware bug. The only other theory is that Apple produce many, many, many hardware default iMacPro's - that there is some serious problem with the motherboard design and/or assembly line. This sounds less probably to me. But---IF most have NO problems like this with their new iMacPro, why do some have it...it's the same macOS!???

This is the most f'ed up situation I've ever had with a product from Apple. What to do? It's a serious issue (to have a computer that suddenly randomly restarts is very, very, very bad in most professional situations).

I will wait ONE week for a bug fix from Apple, if nothing comes I will return this iMacPro too and take money refund and forget about iMacPro for a year.

zedv

Level 1

4 points

Apr 11, 2018 6:54 PM in response to Jorgen Gustafson

I have been dealing with this problem since late February with no solution in sight. This problem occurs with nothing connected to iMac Pro and even after the SSD was reformatted (APFS), system restored and updated to OS 10.13.4 and nothing else installed or migrated to the iMac Pro and no email services activated. My computer was thoroughly checked by authorised Apple Service Centre two weeks ago and passed all the tests thrown at it. However the problem persists with kernel panics occurring when the unit is in sleep mode. This problem is out-of-box problem with many (if not all) iMac Pros affected. There is some evidence that attempts were made to address the issue in OS 10.13.4. (Eg. Bridge OS 2.0.1 (15P2542) was upgraded to Bridge OS 2.3 (15P3169) in OS 10.13.4.)

In OS 10.13.3: {"caused_by":"macos","macos_system_state":"running","bug_type":"210","os_versio n":"Bridge OS 2.0.1 (15P2542)","timestamp":"2018-03-28 00:33:46.63 +0000" …

In OS 10.13.4: {"caused_by":"macos","macos_system_state":"running","bug_type":"210","os_versio n":"Bridge OS 2.3 (15P3169)","timestamp":"2018-04-05 12:51:01.05 +0000" …

After over a month of sheer frustration and several sessions with Apple Support senior advisors I returned the computer for full refund. I may reconsider buying iMac Pro after the problem is fixed.

Apr 12, 2018 6:26 AM in response to zedv

Hardware test never show any problems. I'm confused that Apple have problem to fix this issue. Very strange. Don't they really understand their new iMacPro mother board design? :-D I believe it's not harware anyway, it's something in macOS that don't play clean with this new mother board. I put my money on firmware & hope for a specific update for iMac Pro soon, probably a strange firmware update with many restarts meanwhile updating. :-)

I'm i a better mood today & give Apple 2 weeks for this, if not I return the macine and say goodbuy to iMacPro for this time.

lienffur

Level 1

4 points

Apr 13, 2018 10:08 AM in response to Jorgen Gustafson

Just wanted to add to the list really - same issue. Brand new base model iMac Pro, less than a week old. Took maybe three days to install all my Adobe CC software, video editing apps, Logic Pro etc etc (including creating templates for various bits of work). Long & short - lots of installs, reboots, full overnight shutdowns before I had it up and running and started to use 'sleep'. Seeing the same panic crashes as everyone else, even with nothing running before putting the thing to sleep.

I do have a LaCie D2 plugged in, using a thunderbolt 3 adapter (Apple branded). What I've also seen is that the LaCie is repeatedly spinning up during sleep (whereas with my old iMac 2012, it would stay asleep with the Mac). It knows the iMac is sleeping, so does its own power down cycle, and the blue light goes off. In less than 5 seconds, it gets woken by what can only be some activity on the thunderbolt port, and it spins back up again ... then goes straight back into its power off cycle. Once off, 5 seconds pass, then it's back on again ... and so on, and so on.

So I'm not only bothered about an almost £5,000 new computer that constantly crashes in sleep, but also my main external drive which is being spun up and down in an endless cycle during sleep too.

I'm having to power down every time now; this pains me, as this thing is a workstation-class bit of hardware that should be good to leave on (rendering animation for example) for long periods without worry of any issues. I want to be excited by having got one of there expensive new Pro models, but I'm disappointed within the first week.

Not good form, Apple ...

Apr 21, 2018 10:05 AM in response to nickatnyte_

Add me to the list. The crashes happen constantly for me--pretty much every time the system sleeps, perhaps 8 times yesterday. I tried unplugging everything and reinstalling the os in place to no avail. Reading this list, it seems that no-one has successfully "cured" the issue.

It's discouraging that @Jorgen says they have the same issue with their 2nd iMac Pro and nothing installed! That implies that this is a fairly common problem. Anyone had luck getting through to a team at Apple that knows anything?

Apr 21, 2018 4:00 PM in response to dave_rosenthal

I'm on my third computer - same problem.

FWIW, I've had feedback from Apple support, they say that I've got 4 Multi Stream Technology (MST) displays plugged in, but it only supports 2 MST, or 4 Single Stream (SST).

This is news to me, and something to follow up with Dell (they said it was SST).

However, I still get the same rebooting problem with two displays plugged in (contrary to the Apple tech engineers prediction). When I sent off the logs to the engineering team they said, good news - it didn't kernel panic! What a stupid statement though - I don't care what you call it, it reboots for no reason - maybe explain why it rebooted than fixating on whether it kernel paniced or not.

I must say, I'm very frustrated in dealing with Apple. The service reps I'm speaking to are really friendly, but there's a firewall between me and the engineering team, and I feel as though the message of what I've tried isn't being communicated to them properly (probably not reading through the call logs from the reps).

They're aware of this thread, but each feedback I get it's like I'm the only one experiencing the problem. I worry there's just not enough units of the iMac out there for them to worry too much about. They've got loads of reports, but no one seems to be following up.

If this continues I think I'll have to return the computer and wait for newer models...

May 3, 2018 8:33 AM in response to sugaraspa

My iMac Pro (second one) don't randomly shut down/restart sinece I started to choose "no sleep" in energy settings (it's on 24/7). I'm in production now and I will use this one 11 month (still can get a new one first year) - IF Apple havn't fixed this issue untill then. I will get a new one...and do the same with that one, use it for 11 month. Maybe I can get a new iMacPro every year for a decade...just because they are to lazy to fix the problem. :-D

May 11, 2018 4:03 AM in response to nickatnyte_

Same exact problem. I was fine for the 1st month -- now anytime I walk away from the iMac Pro -- the darn thing crashes and restarts. Very frustrating. I have tried various things to troubleshoot -- but convinced it is. hardware issue. What should I do?

May 13, 2018 10:38 AM in response to nickatnyte_

Sunday, May 13, 2018

Same problem here, since last update to 10.13.4.

Now installing the Security Update 20018-001.

Perhaps this will help.

High Sierra v10.13.4 (17E199) on a new (late 2017) iMac Pro, 3.2 HGz Intel Xeon W, 1Tb SSD (APFS)

May 13, 2018 11:18 PM in response to nickatnyte_

I had the same problem, with the same error codes. Disabling "put hard disks to sleep", as suggested by our local mac admin, and in another reply here, has stopped it from happening.

Our theory is that it has to do with the SSD encryption not playing well with hard disk sleep. One idea is that the operating system wakes up quicker than the security hardware, and accesses the disk before it has been "unlocked". The system sees random garbage and crashes.

So waiting for an Apple fix, it would seem that some users can stop it from happening by disabling "put hard disks to sleep". Since it's an SSD, putting it "to sleep" is gibberish anyways.

May 14, 2018 12:30 AM in response to Viktor Fougstedt1

I got really excited by your response as it's one of the first suggestions that seems to make sense.

Unfortunately though, I realized that I've already disabled the feature that puts the SSD to sleep, and it's not done the trick (I'm on my third iMac Pro 😟)

I have noticed though that it goes through phases of rebooting multiple times per day, to not doing it at all for days on end, maybe that's what you're in now?

Let us know how it works out your side though, and if this solves it, or if you have any other thoughts/suggestions - most of us are willing to try just about anything by now.

May 17, 2018 8:30 AM in response to sugaraspa

I unticked "Put hard disks to sleep when possible" seven days ago today, and have not had a single restart since then. My other Energy Saver settings are "Prevent computer from sleeping" active, the other four inactive.

High Sierra 10.13.4.

If nothing else this should give Apple something to go on. With the "Put hard disks to sleep" option ticked, I had a crash as soon as I left my mac alone for too long, since I unticked it I haven't had a single crash.

My gut feeling is that this is a software-correctable bug, but possibly one which is triggered by hardware being at the edge of specs. Maybe my hardware is slightly closer to average and only triggered the bug on hard disk sleep, while others' hardware is a little closer to the spec edge and trigger the bug on other events as well...

If I have a new crash I will post here immediately again.

May 17, 2018 8:48 AM in response to newmediagroup

I likewise have not had the put hard disks to sleep box checked and still have the random restarts with the same error.

I use Final Cut Pro a great deal with this unit -- and it seems to occur less frequently when I have that program shut down. It also never happens when I manually put the iMac Pro to sleep.

What is maddening to me is the lack of feedback from Apple. Obviously many people are experiencing this issue. I have sent it in several times, and don't have the time in my work day to sit on the phone with support. Each of us invested big money into not just these units -- but to whole homes and offices chalk full of Apple products. A simple "We see the problem and we are working on a solution" would do a lot to assuage my disappointment - which is turning to anger.

$7,000 computers should not randomly crash and restart. Fix it.

lienffur

Level 1

4 points

May 17, 2018 10:28 AM in response to Sean O'Bryan

I’m willing to be that if all of us that are experiencing this issue start openly posting about it on Twitter, Facebook etc, copying Apple in on messages, things might start moving.

Something along the lines of ‘Don’t spend your money on one of these, all the time they have crashing issues which Apple won’t acknowledge ...’

May 20, 2018 11:55 AM in response to newmediagroup

Alas, nothing has worked for me.

I do notice that there are days, even about a week or more, where nothing happens and I think/hope all has been corrected, but nothing.

Would love to hear if you experience any more problems, or if indeed they're gone for good, please keep in touch.

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iMac Pro restarting because of a problem?