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iMac 27'' (Late 2013) - Kernel Panic Problems.

X

xfusejc

macrumors 6502
Original poster
Dec 29, 2006
442
468
Bit of a backstory: got it from a family member that wasn't using it because it would be either too slow, or it would hang on booting up. I got it primarily to use as a download station/Plex server. It's a 3.2GHz Intel Core i5, and I did a clean install of Catalina when I got it (it was already installed), assuming the problems were software related. It would work fine for a day or two but at some point, it would hang at the login window after I entered my password and there would be no way to go further. I tried a couple of things:

- reset PRAM
- Diagnostics found nothing wrong with it
- verbose booting didn't show it getting "stuck" on anything
- booted up in Safe Mode, which would get me past the login window, but then it would freeze when the Finder was trying to open
- because of the above, I tried deleting the Finder preferences through Terminal/Recovery but it didn't make a difference
- tried another reinstall of Catalina, not a clean install, but just to see if there were any files that weren't working properly that could get replaced

Nothing worked, so I decided to try a different track.

Two days ago, I upgraded the RAM from 8GB to 32GB, and did a reinstall through internet recovery, which brought me back to Mavericks (the original OS). Once I booted up on Mavericks, I downloaded/installed Mojave, and I had been using it with no problem for the past few days, except that I just got a random shutdown while transferring a file and while I was writing this up, it happened again (thank you MacRumors for saving messages as I type). These were the problem reports that came up after the restart:

Code: 
Wed May 13 20:28:34 2020

*** Panic Report ***
panic(cpu 2 caller 0xffffff80090dbadd): Kernel trap at 0xffffff80090d15d0, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0xffffff005d7f3208, CR3: 0x000000043c55b173, CR4: 0x00000000001626e0
RAX: 0xffffff806379da40, RBX: 0xffffff005d7f3208, RCX: 0x0000000000000000, RDX: 0x0000000000000000
RSP: 0xffffff802b0036c0, RBP: 0xffffff802b003710, RSI: 0x0000000000000001, RDI: 0xffffff005d7f3208
R8:  0x000000000000000e, R9:  0xffffff805cb58070, R10: 0xffffff80098a36a8, R11: 0x0000000000000000
R12: 0xffffff80641a8d48, R13: 0x000000000100e004, R14: 0xffffff80641a8d48, R15: 0xffffff005d7f3208
RFL: 0x0000000000010206, RIP: 0xffffff80090d15d0, CS:  0x0000000000000008, SS:  0x0000000000000010
Fault CR2: 0xffffff005d7f3208, Error code: 0x0000000000000000, Fault CPU: 0x2, PL: 0, VF: 1

Backtrace (CPU 2), Frame : Return Address
0xffffff802b003190 : 0xffffff8008fae6ed
0xffffff802b0031e0 : 0xffffff80090ea185
0xffffff802b003220 : 0xffffff80090db8ba
0xffffff802b003290 : 0xffffff8008f5bb40
0xffffff802b0032b0 : 0xffffff8008fae107
0xffffff802b0033d0 : 0xffffff8008fadf53
0xffffff802b003440 : 0xffffff80090dbadd
0xffffff802b0035b0 : 0xffffff8008f5bb40
0xffffff802b0035d0 : 0xffffff80090d15d0
0xffffff802b003710 : 0xffffff800905f0af
0xffffff802b003740 : 0xffffff80091f9490
0xffffff802b0037c0 : 0xffffff80091f8c87
0xffffff802b003800 : 0xffffff80091fa151
0xffffff802b003830 : 0xffffff80091fc20e
0xffffff802b0038c0 : 0xffffff7f8a338a0d
0xffffff802b003a10 : 0xffffff7f8a3409af
0xffffff802b003ae0 : 0xffffff80091f35de
0xffffff802b003c40 : 0xffffff80091f2821
0xffffff802b003d60 : 0xffffff80092198b0
0xffffff802b003f40 : 0xffffff80095ba5ed
0xffffff802b003fa0 : 0xffffff8008f5c306
      Kernel Extensions in backtrace:
         com.apple.filesystems.apfs(945.275.7)[ACFDCC84-EBFD-376E-8361-B16CC6CAF740]@0xffffff7f8a30f000->0xffffff7f8a410fff
            dependency: com.apple.kec.corecrypto(1.0)[16D0DE4A-4774-32C4-B05D-D35601D9FC39]@0xffffff7f89c5e000
            dependency: com.apple.driver.AppleEffaceableStorage(1.0)[10658FF3-EB34-3240-9E63-3FB47B9700FF]@0xffffff7f8a279000
            dependency: com.apple.iokit.IOStorageFamily(2.1)[71BB22B0-3075-35A1-B04E-FBAC574DA80D]@0xffffff7f89b83000

BSD process name corresponding to current thread: mdworker_shared

Mac OS version:
18G103

Kernel version:
Darwin Kernel Version 18.7.0: Tue Aug 20 16:57:14 PDT 2019; root:xnu-4903.271.2~2/RELEASE_X86_64
Kernel UUID: C41337A1-0EC3-3896-A954-A1F85E849D53
Kernel slide:     0x0000000008c00000
Kernel text base: 0xffffff8008e00000
__HIB  text base: 0xffffff8008d00000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 14286178646422
last loaded kext at 5239085257135: com.apple.driver.AppleXsanScheme    3 (addr 0xffffff7f8bc3a000, size 32768)
last unloaded kext at 12840093600346: com.apple.driver.AppleXsanScheme    3 (addr 0xffffff7f8bc3a000, size 32768)
loaded kexts:
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.driver.AudioAUUC    1.70
com.apple.AGDCPluginDisplayMetrics    3.50.12
com.apple.driver.AppleHV    1
com.apple.iokit.IOUserEthernet    1.0.1
com.apple.fileutil    20.036.15
com.apple.filesystems.autofs    3.0
com.apple.iokit.IOBluetoothSerialManager    6.0.14d3
com.apple.driver.pmtelemetry    1
com.apple.driver.AppleUpstreamUserClient    3.6.5
com.apple.driver.AppleMikeyHIDDriver    131
com.apple.driver.AGPM    110.25.11
com.apple.driver.ApplePlatformEnabler    2.7.0d0
com.apple.driver.X86PlatformShim    1.0.0
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.GeForce    12.0.0
com.apple.driver.AppleIntelHD5000Graphics    12.1.0
com.apple.driver.AppleMikeyDriver    282.54
com.apple.driver.AppleThunderboltIP    3.1.2
com.apple.driver.AppleBacklight    170.12.12
com.apple.driver.AppleHDA    282.54
com.apple.driver.eficheck    1
com.apple.driver.AppleIntelSlowAdaptiveClocking    4.0.0
com.apple.driver.AppleIntelFramebufferAzul    12.1.0
com.apple.driver.AppleMCCSControl    1.5.9
com.apple.iokit.AppleBCM5701Ethernet    10.3.3
com.apple.driver.AppleLPC    3.1
com.apple.driver.AppleOSXWatchdog    1
com.apple.driver.AppleSMCLMU    212
com.apple.driver.AirPort.BrcmNIC    1400.1.1
com.apple.iokit.SCSITaskUserClient    408.250.3
com.apple.driver.AppleUSBStorageCoexistentDriver    456.260.3
com.apple.driver.AppleVirtIO    2.1.3
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    945.275.7
com.apple.private.KextAudit    1.0
com.apple.driver.AppleSDXC    1.7.6
com.apple.driver.AppleAHCIPort    329.260.5
com.apple.driver.AppleRTC    2.0
com.apple.driver.AppleACPIButtons    6.1
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    201
com.apple.security.TMSafetyNet    8
com.apple.iokit.IOAVBFamily    760.6
com.apple.plugin.IOgPTPPlugin    740.2
com.apple.iokit.IOSkywalkFamily    1
com.apple.driver.AppleSSE    1.0
com.apple.kext.triggers    1.0
com.apple.nvidia.driver.NVDAGK100Hal    12.0.0
com.apple.nvidia.driver.NVDAResman    12.0.0
com.apple.AppleGPUWrangler    3.50.12
com.apple.driver.AppleBacklightExpert    1.1.0
com.apple.driver.DspFuncLib    282.54
com.apple.kext.OSvKernDSPLib    528
com.apple.iokit.IONDRVSupport    530.51
com.apple.iokit.IOSlowAdaptiveClockingFamily    1.0.0
com.apple.driver.AppleThunderboltEDMSink    4.2.0
com.apple.AppleGraphicsDeviceControl    3.50.12
com.apple.iokit.IOAcceleratorFamily2    404.14
com.apple.iokit.IOSurface    255.6.1
com.apple.driver.AppleSMBusController    1.0.18d1
com.apple.driver.AppleHDAController    282.54
com.apple.iokit.IOHDAFamily    282.54
com.apple.iokit.IOAudioFamily    206.5
com.apple.vecLib.kext    1.2.0
com.apple.iokit.IOEthernetAVBController    1.1.0
com.apple.iokit.IOGraphicsFamily    530.66
com.apple.driver.AppleSMBusPCI    1.0.14d1
com.apple.iokit.IO80211Family    1200.12.2
com.apple.driver.mDNSOffloadUserClient    1.0.1b8
com.apple.driver.corecapture    1.0.4
com.apple.driver.X86PlatformPlugin    1.0.0
com.apple.driver.IOPlatformPluginFamily    6.0.0d8
com.apple.iokit.IOUSBHIDDriver    900.4.2
com.apple.iokit.IOUSBMassStorageClass    4.0.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport    6.0.14d3
com.apple.iokit.IOBluetoothHostControllerUSBTransport    6.0.14d3
com.apple.iokit.IOBluetoothHostControllerTransport    6.0.14d3
com.apple.iokit.IOBluetoothFamily    6.0.14d3
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.iokit.IOSerialFamily    11
com.apple.filesystems.hfs.encodings.kext    1
com.apple.driver.AppleThunderboltDPInAdapter    5.6.9
com.apple.driver.AppleThunderboltDPOutAdapter    5.6.9
com.apple.driver.AppleThunderboltDPAdapterFamily    5.6.9
com.apple.driver.AppleThunderboltPCIDownAdapter    2.1.5
com.apple.iokit.IOAHCIBlockStorage    301.270.1
com.apple.driver.AppleThunderboltNHI    4.7.9
com.apple.iokit.IOThunderboltFamily    6.8.6
com.apple.driver.usb.AppleUSBHostPacketFilter    1.0
com.apple.iokit.IOUSBFamily    900.4.2
com.apple.iokit.IOAHCIFamily    288
com.apple.driver.usb.AppleUSBXHCIPCI    1.2
com.apple.driver.usb.AppleUSBXHCI    1.2
com.apple.driver.AppleEFINVRAM    2.1
com.apple.driver.AppleUSBHostMergeProperties    1.2
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    456.260.3
com.apple.driver.AppleMobileFileIntegrity    1.0.5
com.apple.iokit.IOUSBMassStorageDriver    145.200.2
com.apple.iokit.IOSCSIBlockCommandsDevice    408.250.3
com.apple.iokit.IOSCSIArchitectureModelFamily    408.250.3
com.apple.iokit.IOStorageFamily    2.1
com.apple.kext.CoreTrust    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    740.2
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: iMac14,2, BootROM 142.0.0.0.0, 4 processors, Intel Core i5, 3.2 GHz, 32 GB, SMC 2.15f7
Graphics: kHW_NVidiaGeForceGT755MItem, NVIDIA GeForce GT 755M, spdisplays_pcie_device, 1 GB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.77.61.2 AirPortDriverBrcmNIC-1305.8)
Bluetooth: Version 6.0.14d3, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE SSD SD0128F, 121.33 GB
Serial ATA Device: APPLE HDD ST3000DM001, 3 TB
USB Device: USB 3.0 Bus
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: Elements 25A3
USB Device: easystore 25FB
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: Composite Device
USB Device: USB Receiver
Thunderbolt Bus: iMac, Apple Inc., 23.10

Code: 
Wed May 13 21:00:51 2020

*** Panic Report ***
panic(cpu 3 caller 0xffffff801fedbadd): Kernel trap at 0xffffff801feb9eeb, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x00000000000007f8, CR3: 0x000000084ba140bc, CR4: 0x00000000001626e0
RAX: 0x00000000000007f8, RBX: 0x0000000000000000, RCX: 0x00000008102eb000, RDX: 0xffffff8048822cc0
RSP: 0xffffffa3d0c4bae0, RBP: 0xffffffa3d0c4bb10, RSI: 0x00007f8a9169d000, RDI: 0xffffff805d58e0c0
R8:  0xffffff8073c5ed00, R9:  0xffffff802eb8b3b0, R10: 0x000000002eb8b300, R11: 0x0000000000000003
R12: 0xffffff805d58e0c0, R13: 0x00000008102eb000, R14: 0x00007f8a9169d000, R15: 0x0000000000000000
RFL: 0x0000000000010206, RIP: 0xffffff801feb9eeb, CS:  0x0000000000000008, SS:  0x0000000000000010
Fault CR2: 0x00000000000007f8, Error code: 0x0000000000000000, Fault CPU: 0x3, PL: 1, VF: 0

Backtrace (CPU 3), Frame : Return Address
0xffffffa3d0c4b5b0 : 0xffffff801fdae6ed
0xffffffa3d0c4b600 : 0xffffff801feea185
0xffffffa3d0c4b640 : 0xffffff801fedb8ba
0xffffffa3d0c4b6b0 : 0xffffff801fd5bb40
0xffffffa3d0c4b6d0 : 0xffffff801fdae107
0xffffffa3d0c4b7f0 : 0xffffff801fdadf53
0xffffffa3d0c4b860 : 0xffffff801fedbadd
0xffffffa3d0c4b9d0 : 0xffffff801fd5bb40
0xffffffa3d0c4b9f0 : 0xffffff801feb9eeb
0xffffffa3d0c4bb10 : 0xffffff801febe2be
0xffffffa3d0c4bb90 : 0xffffff801fe5f464
0xffffffa3d0c4be70 : 0xffffff801fe56eb8
0xffffffa3d0c4bf20 : 0xffffff80202c592a
0xffffffa3d0c4bf40 : 0xffffff80203ba5ed
0xffffffa3d0c4bfa0 : 0xffffff801fd5c306

BSD process name corresponding to current thread: mdworker_shared

Mac OS version:
18G103

Kernel version:
Darwin Kernel Version 18.7.0: Tue Aug 20 16:57:14 PDT 2019; root:xnu-4903.271.2~2/RELEASE_X86_64
Kernel UUID: C41337A1-0EC3-3896-A954-A1F85E849D53
Kernel slide:     0x000000001fa00000
Kernel text base: 0xffffff801fc00000
__HIB  text base: 0xffffff801fb00000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 1932474071221
last loaded kext at 248490335190: com.apple.filesystems.msdosfs    1.10 (addr 0xffffff7fa398b000, size 69632)
last unloaded kext at 315435542835: com.apple.filesystems.msdosfs    1.10 (addr 0xffffff7fa398b000, size 61440)
loaded kexts:
com.apple.driver.AudioAUUC    1.70
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.fileutil    20.036.15
com.apple.filesystems.autofs    3.0
com.apple.driver.AppleMikeyHIDDriver    131
com.apple.driver.AppleMikeyDriver    282.54
com.apple.driver.ApplePlatformEnabler    2.7.0d0
com.apple.driver.AGPM    110.25.11
com.apple.driver.X86PlatformShim    1.0.0
com.apple.AGDCPluginDisplayMetrics    3.50.12
com.apple.driver.AppleHDA    282.54
com.apple.driver.AppleHV    1
com.apple.iokit.IOUserEthernet    1.0.1
com.apple.iokit.IOBluetoothSerialManager    6.0.14d3
com.apple.driver.pmtelemetry    1
com.apple.driver.AppleUpstreamUserClient    3.6.5
com.apple.driver.AppleIntelHD5000Graphics    12.1.0
com.apple.driver.AppleBacklight    170.12.12
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.GeForce    12.0.0
com.apple.driver.AppleIntelSlowAdaptiveClocking    4.0.0
com.apple.driver.AppleIntelFramebufferAzul    12.1.0
com.apple.driver.AppleMCCSControl    1.5.9
com.apple.driver.eficheck    1
com.apple.driver.AppleThunderboltIP    3.1.2
com.apple.driver.AppleOSXWatchdog    1
com.apple.driver.AppleLPC    3.1
com.apple.driver.AppleSMCLMU    212
com.apple.iokit.SCSITaskUserClient    408.250.3
com.apple.driver.AppleUSBStorageCoexistentDriver    456.260.3
com.apple.driver.AppleVirtIO    2.1.3
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    945.275.7
com.apple.private.KextAudit    1.0
com.apple.driver.AppleSDXC    1.7.6
com.apple.iokit.AppleBCM5701Ethernet    10.3.3
com.apple.driver.AirPort.BrcmNIC    1400.1.1
com.apple.driver.AppleAHCIPort    329.260.5
com.apple.driver.AppleRTC    2.0
com.apple.driver.AppleACPIButtons    6.1
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    201
com.apple.security.TMSafetyNet    8
com.apple.kext.triggers    1.0
com.apple.iokit.IOAVBFamily    760.6
com.apple.plugin.IOgPTPPlugin    740.2
com.apple.iokit.IOSkywalkFamily    1
com.apple.driver.DspFuncLib    282.54
com.apple.kext.OSvKernDSPLib    528
com.apple.driver.AppleSSE    1.0
com.apple.driver.AppleBacklightExpert    1.1.0
com.apple.AppleGPUWrangler    3.50.12
com.apple.nvidia.driver.NVDAGK100Hal    12.0.0
com.apple.nvidia.driver.NVDAResman    12.0.0
com.apple.iokit.IOSlowAdaptiveClockingFamily    1.0.0
com.apple.AppleGraphicsDeviceControl    3.50.12
com.apple.iokit.IOAcceleratorFamily2    404.14
com.apple.iokit.IOSurface    255.6.1
com.apple.driver.AppleSMBusController    1.0.18d1
com.apple.driver.AppleSMBusPCI    1.0.14d1
com.apple.iokit.IONDRVSupport    530.51
com.apple.driver.AppleThunderboltEDMSink    4.2.0
com.apple.driver.X86PlatformPlugin    1.0.0
com.apple.driver.IOPlatformPluginFamily    6.0.0d8
com.apple.driver.AppleHDAController    282.54
com.apple.iokit.IOHDAFamily    282.54
com.apple.iokit.IOGraphicsFamily    530.66
com.apple.iokit.IOUSBHIDDriver    900.4.2
com.apple.iokit.IOUSBMassStorageClass    4.0.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport    6.0.14d3
com.apple.iokit.IOBluetoothHostControllerUSBTransport    6.0.14d3
com.apple.iokit.IOBluetoothHostControllerTransport    6.0.14d3
com.apple.iokit.IOBluetoothFamily    6.0.14d3
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.driver.AppleThunderboltDPInAdapter    5.6.9
com.apple.driver.AppleThunderboltDPOutAdapter    5.6.9
com.apple.driver.AppleThunderboltDPAdapterFamily    5.6.9
com.apple.driver.AppleThunderboltPCIDownAdapter    2.1.5
com.apple.iokit.IOAHCIBlockStorage    301.270.1
com.apple.iokit.IOEthernetAVBController    1.1.0
com.apple.driver.AppleThunderboltNHI    4.7.9
com.apple.iokit.IOThunderboltFamily    6.8.6
com.apple.iokit.IO80211Family    1200.12.2
com.apple.driver.mDNSOffloadUserClient    1.0.1b8
com.apple.driver.corecapture    1.0.4
com.apple.iokit.IOAHCIFamily    288
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    456.260.3
com.apple.driver.AppleMobileFileIntegrity    1.0.5
com.apple.iokit.IOUSBMassStorageDriver    145.200.2
com.apple.iokit.IOSCSIBlockCommandsDevice    408.250.3
com.apple.iokit.IOSCSIArchitectureModelFamily    408.250.3
com.apple.iokit.IOStorageFamily    2.1
com.apple.kext.CoreTrust    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    740.2
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: iMac14,2, BootROM 142.0.0.0.0, 4 processors, Intel Core i5, 3.2 GHz, 32 GB, SMC 2.15f7
Graphics: kHW_NVidiaGeForceGT755MItem, NVIDIA GeForce GT 755M, spdisplays_pcie_device, 1 GB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.77.61.2 AirPortDriverBrcmNIC-1305.8)
Bluetooth: Version 6.0.14d3, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE SSD SD0128F, 121.33 GB
Serial ATA Device: APPLE HDD ST3000DM001, 3 TB
USB Device: USB 3.0 Bus
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: Elements 25A3
USB Device: easystore 25FB
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: Composite Device
USB Device: USB Receiver
Thunderbolt Bus: iMac, Apple Inc., 23.10

I haven't had the problem with it stalling after login, or stalling at all, since I went back to Mojave. Just these two random shutdowns now.

Any ideas?
 
Last edited:
One last thing I forgot: I originally assumed the problems were with the Catalina installation, since the Fusion Drive that came installed with this particular iMac wasn't configured/had been erased. When I did the Internet Recovery and went back to Mavericks, the first thing Disk Utility asked was if I wanted to repair/restore the Fusion Drive, which I did, before reinstalling Mavericks and later updating to Mojave.

It happened a third time just now, so they are getting more frequent.

Code: 
Wed May 13 21:50:36 2020

*** Panic Report ***
panic(cpu 3 caller 0xffffff8010ebd721): "Invalid queue element linkage for 0xffffff80781b3300: next 0xffffff8079748c60 next->prev 0xffffff00781b3300 prev 0xffffff8078074ea0 prev->next 0xffffff80781b3300"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4903.278.28/osfmk/kern/queue.h:246
Backtrace (CPU 3), Frame : Return Address
0xffffffa3c0c438c0 : 0xffffff8010daf58d
0xffffffa3c0c43910 : 0xffffff8010eeb145
0xffffffa3c0c43950 : 0xffffff8010edc87a
0xffffffa3c0c439c0 : 0xffffff8010d5c9d0
0xffffffa3c0c439e0 : 0xffffff8010daefa7
0xffffffa3c0c43b00 : 0xffffff8010daedf3
0xffffffa3c0c43b70 : 0xffffff8010ebd721
0xffffffa3c0c43c50 : 0xffffff8010ebe306
0xffffffa3c0c43cc0 : 0xffffff8010e47a29
0xffffffa3c0c43e20 : 0xffffff8010e4f625
0xffffffa3c0c43e60 : 0xffffff8010ddd9e4
0xffffffa3c0c43ea0 : 0xffffff80112b9fcc
0xffffffa3c0c43f10 : 0xffffff80112b9d43
0xffffffa3c0c43f30 : 0xffffff80112b9d19
0xffffffa3c0c43f40 : 0xffffff80113b8eed
0xffffffa3c0c43fa0 : 0xffffff8010d5d196

BSD process name corresponding to current thread: mdworker_shared

Mac OS version:
18G4032

Kernel version:
Darwin Kernel Version 18.7.0: Mon Feb 10 21:08:45 PST 2020; root:xnu-4903.278.28~1/RELEASE_X86_64
Kernel UUID: A52CF11D-A733-3E77-832B-D42063739C84
Kernel slide:     0x0000000010a00000
Kernel text base: 0xffffff8010c00000
__HIB  text base: 0xffffff8010b00000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 2054280666110
last loaded kext at 1281791980707: com.apple.driver.AppleXsanScheme    3 (addr 0xffffff7f93a48000, size 32768)
last unloaded kext at 1350514172757: com.apple.driver.usb.cdc    5.0.0 (addr 0xffffff7f93a41000, size 28672)
loaded kexts:
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.driver.AudioAUUC    1.70
com.apple.AGDCPluginDisplayMetrics    3.50.15
com.apple.driver.AppleHV    1
com.apple.fileutil    20.036.15
com.apple.filesystems.autofs    3.0
com.apple.iokit.IOUserEthernet    1.0.1
com.apple.iokit.IOBluetoothSerialManager    6.0.14d6
com.apple.driver.pmtelemetry    1
com.apple.driver.AppleUpstreamUserClient    3.6.5
com.apple.driver.AppleMikeyHIDDriver    131
com.apple.driver.AGPM    110.25.11
com.apple.driver.X86PlatformShim    1.0.0
com.apple.driver.ApplePlatformEnabler    2.7.0d0
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.GeForce    12.0.0
com.apple.driver.AppleIntelHD5000Graphics    12.1.0
com.apple.driver.AppleMikeyDriver    282.54
com.apple.driver.AppleBacklight    170.12.12
com.apple.driver.AppleThunderboltIP    3.1.2
com.apple.driver.AppleHDA    282.54
com.apple.driver.eficheck    1
com.apple.driver.AppleIntelSlowAdaptiveClocking    4.0.0
com.apple.driver.AppleMCCSControl    1.5.9
com.apple.driver.AppleIntelFramebufferAzul    12.1.0
com.apple.iokit.AppleBCM5701Ethernet    10.3.3
com.apple.driver.AppleLPC    3.1
com.apple.driver.AppleOSXWatchdog    1
com.apple.driver.AppleSMCLMU    212
com.apple.driver.AirPort.BrcmNIC    1400.1.1
com.apple.iokit.SCSITaskUserClient    408.250.3
com.apple.driver.AppleUSBStorageCoexistentDriver    456.260.3
com.apple.driver.AppleVirtIO    2.1.3
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    945.275.8
com.apple.private.KextAudit    1.0
com.apple.driver.AppleSDXC    1.7.6
com.apple.driver.AppleAHCIPort    329.260.5
com.apple.driver.AppleRTC    2.0
com.apple.driver.AppleACPIButtons    6.1
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    202
com.apple.security.TMSafetyNet    8
com.apple.iokit.IOAVBFamily    760.6
com.apple.plugin.IOgPTPPlugin    740.2
com.apple.iokit.IOSkywalkFamily    1
com.apple.kext.triggers    1.0
com.apple.driver.AppleSSE    1.0
com.apple.nvidia.driver.NVDAGK100Hal    12.0.0
com.apple.nvidia.driver.NVDAResman    12.0.0
com.apple.AppleGPUWrangler    3.50.15
com.apple.driver.AppleBacklightExpert    1.1.0
com.apple.driver.DspFuncLib    282.54
com.apple.kext.OSvKernDSPLib    528
com.apple.iokit.IONDRVSupport    530.51
com.apple.iokit.IOSlowAdaptiveClockingFamily    1.0.0
com.apple.driver.AppleSMBusController    1.0.18d1
com.apple.driver.AppleThunderboltEDMSink    4.2.0
com.apple.AppleGraphicsDeviceControl    3.50.15
com.apple.iokit.IOAcceleratorFamily2    404.14
com.apple.iokit.IOSurface    255.6.1
com.apple.driver.AppleHDAController    282.54
com.apple.iokit.IOHDAFamily    282.54
com.apple.iokit.IOAudioFamily    206.5
com.apple.vecLib.kext    1.2.0
com.apple.iokit.IOEthernetAVBController    1.1.0
com.apple.iokit.IOGraphicsFamily    530.68
com.apple.driver.AppleSMBusPCI    1.0.14d1
com.apple.iokit.IO80211Family    1200.12.2
com.apple.driver.mDNSOffloadUserClient    1.0.1b8
com.apple.driver.corecapture    1.0.4
com.apple.driver.X86PlatformPlugin    1.0.0
com.apple.driver.IOPlatformPluginFamily    6.0.0d8
com.apple.iokit.IOUSBHIDDriver    900.4.2
com.apple.iokit.IOUSBMassStorageClass    4.0.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport    6.0.14d6
com.apple.iokit.IOBluetoothHostControllerUSBTransport    6.0.14d6
com.apple.iokit.IOBluetoothHostControllerTransport    6.0.14d6
com.apple.iokit.IOBluetoothFamily    6.0.14d6
com.apple.driver.usb.AppleUSBHub    1.2
com.apple.driver.usb.IOUSBHostHIDDevice    1.2
com.apple.driver.usb.networking    5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice    1.2
com.apple.iokit.IOSerialFamily    11
com.apple.filesystems.hfs.encodings.kext    1
com.apple.driver.AppleThunderboltDPInAdapter    5.6.9
com.apple.driver.AppleThunderboltDPOutAdapter    5.6.9
com.apple.driver.AppleThunderboltDPAdapterFamily    5.6.9
com.apple.driver.AppleThunderboltPCIDownAdapter    2.1.5
com.apple.iokit.IOAHCIBlockStorage    301.270.1
com.apple.driver.AppleThunderboltNHI    4.7.9
com.apple.iokit.IOThunderboltFamily    6.8.7
com.apple.iokit.IOAHCIFamily    288
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    456.260.3
com.apple.driver.AppleMobileFileIntegrity    1.0.5
com.apple.iokit.IOUSBMassStorageDriver    145.200.2
com.apple.iokit.IOSCSIBlockCommandsDevice    408.250.3
com.apple.iokit.IOSCSIArchitectureModelFamily    408.250.3
com.apple.iokit.IOStorageFamily    2.1
com.apple.kext.CoreTrust    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    740.2
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: iMac14,2, BootROM 142.0.0.0.0, 4 processors, Intel Core i5, 3.2 GHz, 32 GB, SMC 2.15f7
Graphics: kHW_NVidiaGeForceGT755MItem, NVIDIA GeForce GT 755M, spdisplays_pcie_device, 1 GB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.77.61.3 AirPortDriverBrcmNIC-1305.9)
Bluetooth: Version 6.0.14d6, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE SSD SD0128F, 121.33 GB
Serial ATA Device: APPLE HDD ST3000DM001, 3 TB
USB Device: USB 3.0 Bus
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: Elements 25A3
USB Device: easystore 25FB
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: Composite Device
USB Device: USB Receiver
Thunderbolt Bus: iMac, Apple Inc., 23.10

ETA

4th...

Code: 
Wed May 13 22:37:15 2020

*** Panic Report ***
panic(cpu 0 caller 0xffffff8014adca9d): Kernel trap at 0xffffff8014be3bb2, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff0070c228f8, CR3: 0x0000000610f7f131, CR4: 0x00000000001626e0
RAX: 0xffffff0070c228f8, RBX: 0xffffff8065e20fc0, RCX: 0x0000000025000000, RDX: 0x0000000000000000
RSP: 0xffffff83c3f93b00, RBP: 0xffffff83c3f93b20, RSI: 0x0000000000000001, RDI: 0xffffff8065e20fc0
R8:  0x0000000000000000, R9:  0x000000000000000b, R10: 0xffffff80152a82f8, R11: 0xffffff801e8e02c0
R12: 0xffffff8070c228b8, R13: 0x0000000000000000, R14: 0x0000000000000001, R15: 0xffffff8065e20fe0
RFL: 0x0000000000010246, RIP: 0xffffff8014be3bb2, CS:  0x0000000000000008, SS:  0x0000000000000010
Fault CR2: 0xffffff0070c228f8, Error code: 0x0000000000000000, Fault CPU: 0x0, PL: 0, VF: 1

Backtrace (CPU 0), Frame : Return Address
0xffffff83c3f935d0 : 0xffffff80149af58d
0xffffff83c3f93620 : 0xffffff8014aeb145
0xffffff83c3f93660 : 0xffffff8014adc87a
0xffffff83c3f936d0 : 0xffffff801495c9d0
0xffffff83c3f936f0 : 0xffffff80149aefa7
0xffffff83c3f93810 : 0xffffff80149aedf3
0xffffff83c3f93880 : 0xffffff8014adca9d
0xffffff83c3f939f0 : 0xffffff801495c9d0
0xffffff83c3f93a10 : 0xffffff8014be3bb2
0xffffff83c3f93b20 : 0xffffff8014be342a
0xffffff83c3f93b80 : 0xffffff8014bfa543
0xffffff83c3f93c00 : 0xffffff8014bf9c57
0xffffff83c3f93c40 : 0xffffff8014bfe490
0xffffff83c3f93cc0 : 0xffffff8014c09cec
0xffffff83c3f93d60 : 0xffffff8014c09827
0xffffff83c3f93f40 : 0xffffff8014fb8eed
0xffffff83c3f93fa0 : 0xffffff801495d196

BSD process name corresponding to current thread: umount

Mac OS version:
18G4032

Kernel version:
Darwin Kernel Version 18.7.0: Mon Feb 10 21:08:45 PST 2020; root:xnu-4903.278.28~1/RELEASE_X86_64
Kernel UUID: A52CF11D-A733-3E77-832B-D42063739C84
Kernel slide:     0x0000000014600000
Kernel text base: 0xffffff8014800000
__HIB  text base: 0xffffff8014700000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 2472096818140
last loaded kext at 250795378943: com.apple.filesystems.msdosfs    1.10 (addr 0xffffff7f985a4000, size 69632)
last unloaded kext at 316722834734: com.apple.filesystems.msdosfs    1.10 (addr 0xffffff7f985a4000, size 61440)
loaded kexts:
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.driver.AudioAUUC    1.70
com.apple.fileutil    20.036.15
com.apple.filesystems.autofs    3.0
com.apple.driver.AppleMikeyHIDDriver    131
com.apple.driver.AGPM    110.25.11
com.apple.driver.ApplePlatformEnabler    2.7.0d0
com.apple.driver.X86PlatformShim    1.0.0
com.apple.driver.AppleHDA    282.54
com.apple.AGDCPluginDisplayMetrics    3.50.15
com.apple.driver.AppleHV    1
com.apple.iokit.IOUserEthernet    1.0.1
com.apple.driver.AppleUpstreamUserClient    3.6.5
com.apple.GeForce    12.0.0
com.apple.iokit.IOBluetoothSerialManager    6.0.14d6
com.apple.driver.pmtelemetry    1
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AppleIntelHD5000Graphics    12.1.0
com.apple.driver.eficheck    1
com.apple.driver.AppleBacklight    170.12.12
com.apple.driver.AppleLPC    3.1
com.apple.driver.AppleIntelSlowAdaptiveClocking    4.0.0
com.apple.driver.AppleOSXWatchdog    1
com.apple.driver.AppleMikeyDriver    282.54
com.apple.driver.AppleThunderboltIP    3.1.2
com.apple.driver.AppleIntelFramebufferAzul    12.1.0
com.apple.driver.AppleSMCLMU    212
com.apple.driver.AppleMCCSControl    1.5.9
com.apple.iokit.SCSITaskUserClient    408.250.3
com.apple.driver.AppleUSBStorageCoexistentDriver    456.260.3
com.apple.driver.AppleVirtIO    2.1.3
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    945.275.8
com.apple.private.KextAudit    1.0
com.apple.iokit.AppleBCM5701Ethernet    10.3.3
com.apple.driver.AppleSDXC    1.7.6
com.apple.driver.AirPort.BrcmNIC    1400.1.1
com.apple.driver.AppleAHCIPort    329.260.5
com.apple.driver.AppleRTC    2.0
com.apple.driver.AppleACPIButtons    6.1
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    202
com.apple.security.TMSafetyNet    8
com.apple.kext.triggers    1.0
com.apple.driver.DspFuncLib    282.54
com.apple.kext.OSvKernDSPLib    528
com.apple.iokit.IOAVBFamily    760.6
com.apple.plugin.IOgPTPPlugin    740.2
com.apple.iokit.IOSkywalkFamily    1
com.apple.driver.AppleSSE    1.0
com.apple.nvidia.driver.NVDAGK100Hal    12.0.0
com.apple.nvidia.driver.NVDAResman    12.0.0
com.apple.AppleGPUWrangler    3.50.15
com.apple.driver.AppleBacklightExpert    1.1.0
com.apple.iokit.IOSlowAdaptiveClockingFamily    1.0.0
com.apple.iokit.IONDRVSupport    530.51
com.apple.driver.X86PlatformPlugin    1.0.0
com.apple.driver.IOPlatformPluginFamily    6.0.0d8
com.apple.driver.AppleThunderboltEDMSink    4.2.0
com.apple.AppleGraphicsDeviceControl    3.50.15
com.apple.iokit.IOAcceleratorFamily2    404.14
com.apple.iokit.IOSurface    255.6.1
com.apple.driver.AppleHDAController    282.54
com.apple.iokit.IOHDAFamily    282.54
com.apple.iokit.IOGraphicsFamily    530.68
com.apple.driver.AppleSMBusController    1.0.18d1
com.apple.driver.AppleSMBusPCI    1.0.14d1
com.apple.iokit.IOUSBHIDDriver    900.4.2
com.apple.iokit.IOUSBMassStorageClass    4.0.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport    6.0.14d6
com.apple.iokit.IOBluetoothHostControllerUSBTransport    6.0.14d6
com.apple.iokit.IOBluetoothHostControllerTransport    6.0.14d6
com.apple.iokit.IOBluetoothFamily    6.0.14d6
com.apple.driver.usb.AppleUSBHub    1.2
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.iokit.IOSerialFamily    11
com.apple.filesystems.hfs.encodings.kext    1
com.apple.driver.AppleThunderboltDPInAdapter    5.6.9
com.apple.driver.AppleThunderboltDPOutAdapter    5.6.9
com.apple.driver.AppleThunderboltDPAdapterFamily    5.6.9
com.apple.driver.AppleThunderboltPCIDownAdapter    2.1.5
com.apple.driver.AppleThunderboltNHI    4.7.9
com.apple.iokit.IOThunderboltFamily    6.8.7
com.apple.iokit.IOAHCIBlockStorage    301.270.1
com.apple.iokit.IOEthernetAVBController    1.1.0
com.apple.iokit.IO80211Family    1200.12.2
com.apple.driver.mDNSOffloadUserClient    1.0.1b8
com.apple.driver.corecapture    1.0.4
com.apple.iokit.IOAHCIFamily    288
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    456.260.3
com.apple.driver.AppleMobileFileIntegrity    1.0.5
com.apple.iokit.IOUSBMassStorageDriver    145.200.2
com.apple.iokit.IOSCSIBlockCommandsDevice    408.250.3
com.apple.iokit.IOSCSIArchitectureModelFamily    408.250.3
com.apple.iokit.IOStorageFamily    2.1
com.apple.kext.CoreTrust    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    740.2
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: iMac14,2, BootROM 142.0.0.0.0, 4 processors, Intel Core i5, 3.2 GHz, 32 GB, SMC 2.15f7
Graphics: kHW_NVidiaGeForceGT755MItem, NVIDIA GeForce GT 755M, spdisplays_pcie_device, 1 GB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343147533641465238412D50422020
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x435438473353313630424D2E433136465044
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.77.61.3 AirPortDriverBrcmNIC-1305.9)
Bluetooth: Version 6.0.14d6, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE SSD SD0128F, 121.33 GB
Serial ATA Device: APPLE HDD ST3000DM001, 3 TB
USB Device: USB 3.0 Bus
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: USB3.0 Hub
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: easystore 25FB
USB Device: Elements 25A3
USB Device: easystore 25FB
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: USB2.0 Hub
USB Device: Composite Device
USB Device: USB Receiver
Thunderbolt Bus: iMac, Apple Inc., 23.10
 
Last edited:
Sounds like there might be a disk drive problem. Have you tried installing the OS on an external drive and booting from there? That would eliminate the drive as a problem. Another thing to test would be the memory simms. Run it on 2 simms and swap between the sets.
 
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I second the recommendations above.

Also: though I would not expect panics from it, APFS on HD causes substantial performance issues. If you can tet the machine stable, you can consider an external SSD, or consider an older OS without APFS. 10.13 can be forced to keep HFS+, and 10.14 can be cloned to an HFS+ drive. Not sure about 10.15.
 
hobowankenobi said:
I second the recommendations above.

Also: though I would not expect panics from it, APFS on HD causes substantial performance issues. If you can tet the machine stable, you can consider an external SSD, or consider an older OS without APFS. 10.13 can be forced to keep HFS+, and 10.14 can be cloned to an HFS+ drive. Not sure about 10.15.
Click to expand...
I had set it up as HFS but I guess it might have automatically changed it to APFS when I did the upgrade to Mojave. Thanks for the suggestion.

glenthompson said:
Sounds like there might be a disk drive problem. Have you tried installing the OS on an external drive and booting from there? That would eliminate the drive as a problem. Another thing to test would be the memory simms. Run it on 2 simms and swap between the sets.
Click to expand...
Could you point me to a guide on how to do that? I've never done something like that. Is it just installing OS X on an external drive formatted to HFS? How would that work with the internal memory of the iMac?

Thanks for the help :)
 
xfusejc said:
I had set it up as HFS but I guess it might have automatically changed it to APFS when I did the upgrade to Mojave. Thanks for the suggestion.


Could you point me to a guide on how to do that? I've never done something like that. Is it just installing OS X on an external drive formatted to HFS? How would that work with the internal memory of the iMac?

Thanks for the help :)
Click to expand...


Yep. You can install MacOS on an external. Just change the destination, and install. RAM and everything else works just the same, nothing to do or change. Several ways to do it.

One of the easiest might be to go to download the OS you want (10.12 for example). When you run it, change the destination to your external drive.
 
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hobowankenobi said:
Yep. You can install MacOS on an external. Just change the destination, and install. RAM and everything else works just the same, nothing to do or change. Several ways to do it.

One of the easiest might be to go to download the OS you want (10.12 for example). When you run it, change the destination to your external drive.
Click to expand...
After looking around, would this be the right idea: https://www.macworld.co.uk/how-to/mac-software/macos-external-drive-3659666/

How would this work in perpetuity? Would I be able to simply set that as the start-up disk and have it launch from there each time? Would the things currently on the iMac be affected, or would it provide me with a brand-new set-up.

Sorry for all the questions, just want to make sure I do it correctly the first time around.
 
Yep. You can change start up disk in System Preferences....or you can hold down the Option key when you boot, and get to choose.

Don't worry, if you do it wrong, it won't boot to the external...but it will check all the other buses and find the internal drive, and boot. No risk, other than erasing the external to install the fresh OS on. Be sure the external is formatted HFS+.
 
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