Constant Kernel panics and Mac crashing because of SSD?

[TP18]

Does anyone know whats causing the crash. I ran Disk Utility and all ran fine in the end but snapshots (backup?) give an error. Startup in Diagnostics said all is fine.. and Safe Mode also runs fine.
Thanks for your help!
I have a 1TB SSD
I have Added 3 reports..

----

Disk Utility report:





Running First Aid on “Container disk1”

NOTE: First Aid will temporarily lock the startup volume.

Verifying storage system

Using live mode.

Performing fsck_apfs -n -x -l /dev/disk0s2

Checking the container superblock.

Checking the EFI jumpstart record.

Checking the space manager.

Checking the space manager free queue trees.

Checking the object map.

Checking volume.

Checking the APFS volume superblock.

The volume Macintosh HD was formatted by hfs_convert (748.1.36) and last modified by apfs_kext (945.230.6).

Checking the object map.

Checking the snapshot metadata tree.

Checking the snapshot metadata.

Checking snapshot 1 of 1.

warning: inode_val: object (oid 0x1a85bd): invalid bsd_flags (0x10)

Checking the extent ref tree.

Checking the fsroot tree.

warning: inode_val: object (oid 0x1a85bd): invalid bsd_flags (0x10)

Checking volume.

Checking the APFS volume superblock.

The volume Preboot was formatted by newfs_apfs (748.1.36) and last modified by apfs_kext (945.230.6).

Checking the object map.

Checking the snapshot metadata tree.

Checking the snapshot metadata.

Checking the extent ref tree.

Checking the fsroot tree.

Checking volume.

Checking the APFS volume superblock.

The volume Recovery was formatted by newfs_apfs (748.1.36) and last modified by apfs_kext (945.230.6).

Checking the object map.

Checking the snapshot metadata tree.

Checking the snapshot metadata.

Checking the extent ref tree.

Checking the fsroot tree.

Checking volume.

Checking the APFS volume superblock.

The volume VM was formatted by newfs_apfs (748.1.36) and last modified by apfs_kext (945.230.6).

Checking the object map.

Checking the snapshot metadata tree.

Checking the snapshot metadata.

Checking the extent ref tree.

Checking the fsroot tree.

Verifying allocated space.

Performing deferred repairs.

The volume /dev/disk0s2 appears to be OK.

Storage system check exit code is 0.

Operation successful.





-----

The Kernel Panic Report

LOG:



Tue Jan 15 19:17:46 2019



*** Panic Report ***

panic(cpu 0 caller 0xffffff8004ab86cf): initproc exited -- exit reason namespace 2 subcode 0xa description: none



uuid info:

0x11f3a8000 uuid = <289ab27e-f09f-3384-a14a-100431139559>

0x10f6df000 uuid = <81c04efd-b06a-32aa-bf73-51f4d442fc58>



Thread 2 crashed



RAX: 0x0000000000000000, RBX: 0x000000010f72d060, RCX: 0x000000010f72a000, RDX: 0x000000010f72d080

RSP: 0x00007000050b13f0, RBP: 0x00007000050b1490, RSI: 0x000000010f72d070, RDI: 0x000000010f6df000

R8: 0x000000010f6dfae8, R9: 0x000000000000000e, R10: 0x0000000000000010, R11: 0x0000000000000202

R12: 0x0000000100021b0a, R13: 0x0000000000001ea8, R14: 0x000000010f72f728, R15: 0x000000010f6df000

RFL: 0x0000000000010246, RIP: 0x00007fff72394647, CS: 0x000000000000002b, SS: 0x0000000000000023



Thread 0: 0xffffff8027ebfcc0

0x00007fff724d30a2

0x00007fff723578a0

0x0000000000000000



Thread 1: 0xffffff804d175a20

0x00007fff724ee2a6

0x00007fff7234a5dc

0x00007fff723598ed

0x00007fff7234dfc9

0x00007fff7234ebdc

0x00007fff72357090

0x00007fff7258860b

0x00007fff72588405

0x0000000000000000



Thread 2: 0xffffff802fcc6b20

0x00007fff72394647

0x00007fff723944cd

0x00007fff72394397

0x00007fff723f3e74

0x000000010f700b0a

0x000000010f71146f

0x00007fff72347dcf

0x00007fff7234a5dc

0x00007fff723598ed

0x00007fff7234dfc9

0x00007fff7234ebdc

0x00007fff72357090

0x00007fff7258860b

0x00007fff72588405

0x00007ff79803fc00



Thread 3: 0xffffff804b38ca50

0x00007fff725883f8



Thread 4: 0xffffff80283df510

0x00007fff725883f8





Mac OS version:

18C54



Kernel version:

Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64

Kernel UUID: 56B30885-F9BA-30E8-AD1C-5D59EC243BA9

System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)

Root disk errors: "Could not recover SATA HDD after 5 attempts. Terminating."



EOF

Model: MacBookPro11,3, BootROM 149.0.0.0.0, 4 processors, Intel Core i7, 2.3 GHz, 16 GB, SMC 2.19f12

Graphics: Intel Iris Pro, Intel Iris Pro, Built-In

Graphics: NVIDIA GeForce GT 750M, NVIDIA GeForce GT 750M, PCIe

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, -

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, -

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x134), Broadcom BCM43xx 1.0 (7.77.61.1AirPortDriverBrcmNIC-1305.2)

Bluetooth: Version 6.0.9f2, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en0

Serial ATA Device: APPLE SSD SM1024F, 1 TB

USB Device: USB 3.0 Bus

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

Thunderbolt Bus: MacBook Pro, Apple Inc., 17.1

----



Another one:Â



Wed Jan 2 13:56:51 2019

*** Panic Report ***

panic(cpu 2 caller 0xffffff80046da1ed): Kernel trap at 0xffffff7f87004c66, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0xffffff9234f3f004, CR3: 0x0000000008b2a000, CR4: 0x00000000001626e0

RAX: 0x0000000000000040, RBX: 0xffffff8049ae4560, RCX: 0x0000000000040004, RDX: 0x0000000000000004

RSP: 0xffffff81e3793cb0, RBP: 0xffffff81e3793cb0, RSI: 0x0000000000040004, RDI: 0xffffff80283b5000

R8: 0xffffff8027a15000, R9: 0xffffff9234eff000, R10: 0xffffff802913d000, R11: 0x0000000025ce1041

R12: 0xffffff7f87058ff0, R13: 0xffffff8027a15000, R14: 0xffffff802939bd00, R15: 0x0000000010001000

RFL: 0x0000000000010206, RIP: 0xffffff7f87004c66, CS: 0x0000000000000008, SS: 0x0000000000000000

Fault CR2: 0xffffff9234f3f004, Error code: 0x0000000000000002, Fault CPU: 0x2, PL: 0, VF: 10

Backtrace (CPU 2), Frame : Return Address

0xffffff81e3793780 : 0xffffff80045aeafdÂ

0xffffff81e37937d0 : 0xffffff80046e85a3Â

0xffffff81e3793810 : 0xffffff80046d9fcaÂ

0xffffff81e3793880 : 0xffffff800455bca0Â

0xffffff81e37938a0 : 0xffffff80045ae517Â

0xffffff81e37939c0 : 0xffffff80045ae363Â

0xffffff81e3793a30 : 0xffffff80046da1edÂ

0xffffff81e3793ba0 : 0xffffff800455bca0Â

0xffffff81e3793bc0 : 0xffffff7f87004c66Â

0xffffff81e3793cb0 : 0xffffff7f86ff3d30Â

0xffffff81e3793d10 : 0xffffff7f85679860Â

0xffffff81e3793d30 : 0xffffff7f8567976fÂ

0xffffff81e3793d50 : 0xffffff7f86feed22Â

0xffffff81e3793d70 : 0xffffff7f86ff8645Â

0xffffff81e3793d90 : 0xffffff7f85661448Â

0xffffff81e3793dd0 : 0xffffff7f85651728Â

0xffffff81e3793e10 : 0xffffff7f8565498aÂ

0xffffff81e3793e30 : 0xffffff7f85652acdÂ

0xffffff81e3793e60 : 0xffffff8004c293bdÂ

0xffffff81e3793ea0 : 0xffffff8004c5546eÂ

0xffffff81e3793ee0 : 0xffffff8004c28479Â

0xffffff81e3793f60 : 0xffffff8004c32e67Â

0xffffff81e3793fa0 : 0xffffff800455b0ceÂ

Kernel Extensions in backtrace:

com.apple.iokit.IOAcceleratorFamily2(404.2.2)[FA92A03C-F113-384A-9B1F-B2C52DE7F4D2]@0xffffff7f85635000->0xffffff7f856d9fff

dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[A69BF990-ABB3-3731-A7A2-9C1FB76BCF6F]@0xffffff7f855ed000

dependency: com.apple.iokit.IOSurface(255.1)[CAF77C5D-98FF-33D0-B31C-FC327D7AD4F6]@0xffffff7f8560a000

dependency: com.apple.iokit.IOPCIFamily(2.9)[7EA30FDD-A2FB-390F-99DD-42BC19691BB4]@0xffffff7f84e95000

dependency: com.apple.iokit.IOGraphicsFamily(530.14)[C5617AC3-A68D-36CE-AC22-7C7C81318961]@0xffffff7f851d1000

dependency: com.apple.iokit.IOReportFamily(47)[75A625B5-0DEB-343A-A723-9D72533F098C]@0xffffff7f8562e000

com.apple.driver.AppleIntelHD5000Graphics(12.0.4)[EA314A1D-F92A-3337-B267-88BEF64FE717]@0xffffff7f86fe0000->0xffffff7f8705afff

dependency: com.apple.iokit.IOSurface(255.1)[CAF77C5D-98FF-33D0-B31C-FC327D7AD4F6]@0xffffff7f8560a000

dependency: com.apple.iokit.IOPCIFamily(2.9)[7EA30FDD-A2FB-390F-99DD-42BC19691BB4]@0xffffff7f84e95000

dependency: com.apple.iokit.IOGraphicsFamily(530.14)[C5617AC3-A68D-36CE-AC22-7C7C81318961]@0xffffff7f851d1000

dependency: com.apple.iokit.IOAcceleratorFamily2(404.2.2)[FA92A03C-F113-384A-9B1F-B2C52DE7F4D2]@0xffffff7f85635000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

18C54

Kernel version:

Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64

Kernel UUID: 56B30885-F9BA-30E8-AD1C-5D59EC243BA9

Kernel slide: 0x0000000004200000

Kernel text base: 0xffffff8004400000

__HIB text base: 0xffffff8004300000

System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)

Root disk errors: "Could not recover SATA HDD after 5 attempts. Terminating."

System uptime in nanoseconds: 158012411124091

last loaded kext at 108543283083079: com.apple.iokit.IOBluetoothUSBDFU 6.0.9f2 (addr 0xffffff7f882a2000, size 12288)

last unloaded kext at 81774230140283: com.apple.driver.usb.cdc 5.0.0 (addr 0xffffff7f8822c000, size 28672)

loaded kexts:

com.apple.iokit.IOBluetoothUSBDFU 6.0.9f2

com.apple.driver.AppleUSBTCKeyEventDriver 254

com.apple.filesystems.afpfs 11.1

com.apple.nke.asp-tcp 8.0.2

com.apple.filesystems.smbfs 3.3.1

com.apple.driver.AudioAUUC 1.70

com.apple.fileutil 18.306.12

com.apple.driver.AppleHWSensor 1.9.5d0

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.filesystems.ntfs 3.13

com.apple.driver.AppleHDA 282.10

com.apple.driver.AppleGraphicsDevicePolicy 3.28.4

com.apple.AGDCPluginDisplayMetrics 3.28.4

com.apple.driver.AppleHV 1

com.apple.driver.AppleUpstreamUserClient 3.6.5

com.apple.driver.AGDCBacklightControl 3.28.4

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 6.0.9f2

com.apple.driver.AppleIntelHD5000Graphics 12.0.4

com.apple.GeForce 12.0.0

com.apple.driver.eficheck 1

com.apple.driver.pmtelemetry 1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleThunderboltIP 3.1.2

com.apple.driver.AppleIntelFramebufferAzul 12.0.4

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleMuxControl 3.28.4

com.apple.driver.AppleSMCLMU 212

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMCCSControl 1.5.6

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleCameraInterface 6.8.0

com.apple.driver.AppleUSBCardReader 456.230.1

com.apple.driver.AppleUSBTCButtons 254

com.apple.driver.AppleUSBTCKeyboard 254

com.apple.driver.AppleVirtIO 2.1.2

com.apple.filesystems.hfs.kext 407.200.4

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.BootCache 40

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.AppleSystemPolicy 1.0

com.apple.filesystems.apfs 945.230.6

com.apple.driver.AppleAHCIPort 329.200.2

com.apple.private.KextAudit 1.0

com.apple.driver.AirPort.BrcmNIC 1400.1.1

com.apple.driver.AppleSmartBatteryManager 161.0.0

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.AppleACPIEC 6.1

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 190

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleXsanScheme 3

com.apple.driver.AppleUSBAudio 315.6

com.apple.driver.usb.cdc 5.0.0

com.apple.security.SecureRemotePassword 1.0

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 282.10

com.apple.kext.OSvKernDSPLib 527

com.apple.iokit.IOAVBFamily 710.1

com.apple.plugin.IOgPTPPlugin 700.7

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.driver.AppleSSE 1.0

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.nvidia.driver.NVDAGK100Hal 12.0.0

com.apple.nvidia.driver.NVDAResman 12.0.0

com.apple.driver.AppleHDAController 282.10

com.apple.iokit.IOHDAFamily 282.10

com.apple.iokit.IOAcceleratorFamily2 404.2.2

com.apple.iokit.IOSurface 255.1

com.apple.driver.AppleGraphicsControl 3.28.4

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.iokit.IONDRVSupport 530

com.apple.AppleGPUWrangler 3.28.4

com.apple.AppleGraphicsDeviceControl 3.28.4

com.apple.iokit.IOGraphicsFamily 530.14

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.9f2

com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.9f2

com.apple.iokit.IOBluetoothHostControllerTransport 6.0.9f2

com.apple.iokit.IOBluetoothFamily 6.0.9f2

com.apple.driver.AppleUSBMultitouch 263

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.iokit.IOAudioFamily 206.5

com.apple.vecLib.kext 1.2.0

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.driver.usb.AppleUSBHub 1.2

com.apple.iokit.IOSerialFamily 11

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

com.apple.iokit.IOAHCIBlockStorage 301.200.2

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.AppleThunderboltDPInAdapter 5.5.8

com.apple.driver.AppleThunderboltDPAdapterFamily 5.5.8

com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.4

com.apple.driver.AppleThunderboltNHI 4.7.6

com.apple.iokit.IOThunderboltFamily 6.8.1

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.driver.corecapture 1.0.4

com.apple.driver.usb.AppleUSBXHCIPCI 1.2

com.apple.driver.usb.AppleUSBXHCI 1.2

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.2

com.apple.driver.AppleUSBHostMergeProperties 1.2

com.apple.driver.AppleEFINVRAM 2.1

com.apple.driver.AppleEFIRuntime 2.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.security.quarantine 3

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.DiskImages 493.0.0

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleUSBTDM 456.230.1

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.kext.CoreTrust 1

com.apple.iokit.IOUSBMassStorageDriver 145.200.2

com.apple.iokit.IOSCSIBlockCommandsDevice 408.200.1

com.apple.iokit.IOSCSIArchitectureModelFamily 408.200.1

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.IOTimeSyncFamily 700.7

com.apple.iokit.IONetworkingFamily 3.4

com.apple.iokit.IOReportFamily 47

com.apple.driver.AppleACPIPlatform 6.1

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: MacBookPro11,3, BootROM 149.0.0.0.0, 4 processors, Intel Core i7, 2.3 GHz, 16 GB, SMC 2.19f12

Graphics: Intel Iris Pro, Intel Iris Pro, Built-In

Graphics: NVIDIA GeForce GT 750M, NVIDIA GeForce GT 750M, PCIe

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, -

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, -

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x134), Broadcom BCM43xx 1.0 (7.77.61.1 AirPortDriverBrcmNIC-1305.2)

Bluetooth: Version 6.0.9f2, 3 services, 27 devices, 1 incoming serial ports

Serial ATA Device: APPLE SSD SM1024F, 1 TB

USB Device: USB 3.0 Bus

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

Thunderbolt Bus: MacBook Pro, Apple Inc., 17.1

 

[Fishrrman]

"Does anyone know whats causing the crash. I ran Disk Utility and all ran fine in the end but snapshots (backup?) give an error. Startup in Diagnostics said all is fine.. and Safe Mode also runs fine."

If a Mac boots and runs fine "in safe mode"...
but
DOES NOT run properly when booted into the "regular" user account...
then
"the problem" generally lies with something the user may have installed into his user account.

It could be an app, an extension (kext), perhaps a startup item, something else.

Try downloading and running an app named EtreCheck.
It's free.
That may (or may not) find some "irregularities".

 

[TP18]

"Does anyone know whats causing the crash. I ran Disk Utility and all ran fine in the end but snapshots (backup?) give an error. Startup in Diagnostics said all is fine.. and Safe Mode also runs fine."

If a Mac boots and runs fine "in safe mode"...
but
DOES NOT run properly when booted into the "regular" user account...
then
"the problem" generally lies with something the user may have installed into his user account.

It could be an app, an extension (kext), perhaps a startup item, something else.

Try downloading and running an app named EtreCheck.
It's free.
That may (or may not) find some "irregularities".

ok thanks will do. problem is the error only happens every 2-3 days..Should I run it in safe mode a couple of days?

 

[BLUEDOG314]

Given the specific kernel extensions in the backtrace, I would say you are going to need a clean install of your OS followed by, ideally, manually migrating data and reinstalling apps.

 

[TP18]

Given the specific kernel extensions in the backtrace, I would say you are going to need a clean install of your OS followed by, ideally, manually migrating data and reinstalling apps.

thanks! Do you know what these mean? In general?

 

[BLUEDOG314]

thanks! Do you know what these mean? In general?

Nope, not particularly, but in my experience IOkit and NVMe kernel extensions are storage related and almost strictly software issues.

 

[kohlson]

I have nearly the same 11,3 model you have, with a 1TB drive (late 2013). The disk was always "problematic" even in the first year or so of use. I ran Disk First Aid, Techtool, and some command line operations to try and resolve. It would always get fixed in the short term, and then a few months later, seem to be a problem. About 20 months ago it started randomly rebooting, and over the next 6 months with increasing frequency. At the end it wouldn't boot. I should note that right before that it passed AHT without issues. I took it into Apple and they replaced everything except the display (logic, top case, and 1TB SSD). It was $600 IIRC. Whatever it was, it is now rock solid.

 

[TP18]

I have nearly the same 11,3 model you have, with a 1TB drive (late 2013). The disk was always "problematic" even in the first year or so of use. I ran Disk First Aid, Techtool, and some command line operations to try and resolve. It would always get fixed in the short term, and then a few months later, seem to be a problem. About 20 months ago it started randomly rebooting, and over the next 6 months with increasing frequency. At the end it wouldn't boot. I should note that right before that it passed AHT without issues. I took it into Apple and they replaced everything except the display (logic, top case, and 1TB SSD). It was $600 IIRC. Whatever it was, it is now rock solid.

wow 600$ to replace all of those stuff. they must have been very generous.. when was this?

 

[kohlson]

when was this?

Sept 2017. The estimate was for that amount, but for just the logic board (which was a guess on their part). When I saw everything that was replaced, I asked how were they able to do that for the same amount. Their response was that there was a "maximum charge" to fix this MBP, and once that amount was reached there was no charge for additional work.
This makes sense to me in my experience with professional power tools. If you have the pro version of a Makita drill, it's pretty much a flat charge (at the factory repair center) to fix anything and everything except the battery. At any rate, the repairs were covered by a not-so-great 90 day warranty.
Whether this is how Apple repairs works, or whether this is a repeatable experience -- dunno.

 

[jeffb53]

Suddenly started getting this error on my Mac Pro Late 2013 after 45 min use, then more and more frequently. S.M.A.R.T status good, DiskUtil (when it would complete) good.

After several false leads, I opened up the case (see iFixit for tools and help), removed the battery connector and SSD, then put everything back together. Ten minute job once you have the P5 pentalobe and T6 torx drivers. Problem solved.