Kernel Panic, RoonAppliance

Roon Core Machine

Mac mini (M1, 2020)
16GB RAM, 1TB hard drive

Networking Gear & Setup Details

Probably not relevant, but Virgin Router feeding into a bunch of Deco M9’s. Mac mini is hardwired to one of the Deco’s via a Netgear switch.

Connected Audio Devices

Sonos, Ropieee XL, Airplay

Number of Tracks in Library

180K tracks

Description of Issue

Just had Roon Appliance cause a kernel panic - screen flashed, then my Mac mini restarted, which isn’t something I’ve experienced before. Everything seems to be back up and running OK, but I’ve initiated a restore from my latest backup just in case.

I’ve included the panic log below. Let me know if you need any further details:

panic(cpu 1 caller 0xfffffe0027500df8): "so 0xfffffe169d98de48 SB_LOCK not set"
Debugger message: panic
Memory ID: 0xff
OS release type: User
OS version: 20G165
Kernel version: Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:20 PDT 2021; root:xnu-7195.141.6~3/RELEASE_ARM64_T8101
Fileset Kernelcache UUID: 6304A06696A657F4CF48CC569B129642
Kernel UUID: DA16DC13-5845-3638-9BB4-B14F9AC08E55
iBoot version: iBoot-6723.140.2
secure boot?: YES
Paniclog version: 13
KernelCache slide: 0x000000001f508000
KernelCache base:  0xfffffe002650c000
Kernel slide:      0x0000000020050000
Kernel text base:  0xfffffe0027054000
Kernel text exec base:  0xfffffe0027120000
mach_absolute_time: 0x9eb9546e23c
Epoch Time:        sec       usec
  Boot    : 0x61507c27 0x000d7883
  Sleep   : 0x00000000 0x00000000
  Wake    : 0x00000000 0x00000000
  Calendar: 0x61576b66 0x00074554

CORE 0 recently retired instr at 0xfffffe0027292d50
CORE 1 recently retired instr at 0xfffffe0027291688
CORE 2 recently retired instr at 0xfffffe0027292d50
CORE 3 recently retired instr at 0xfffffe0027292d50
CORE 4 recently retired instr at 0xfffffe0027292d54
CORE 5 recently retired instr at 0xfffffe0027292d54
CORE 6 recently retired instr at 0xfffffe0027292d54
CORE 7 recently retired instr at 0xfffffe0027292d54
CORE 0 PVH locks held: None
CORE 1 PVH locks held: None
CORE 2 PVH locks held: None
CORE 3 PVH locks held: None
CORE 4 PVH locks held: None
CORE 5 PVH locks held: None
CORE 6 PVH locks held: None
CORE 7 PVH locks held: None
CORE 0: PC=0xfffffe0027214cb8, LR=0xfffffe0027214aec, FP=0xfffffe3fe5633d20
CORE 1 is the one that panicked. Check the full backtrace for details.
CORE 2: PC=0xfffffe0027231c48, LR=0xfffffe00272316bc, FP=0xfffffe3fefe63ed0
CORE 3: PC=0xfffffe00271948c4, LR=0xfffffe00271948c4, FP=0xfffffe3fefcdbbf0
CORE 4: PC=0xfffffe0027199a48, LR=0xfffffe0027199a40, FP=0xfffffe3feef23ee0
CORE 5: PC=0xfffffe0027199a48, LR=0xfffffe0027199a40, FP=0xfffffe3fe5bebee0
CORE 6: PC=0xfffffe0027199a48, LR=0xfffffe0027199a40, FP=0xfffffe3ff1183ee0
CORE 7: PC=0xfffffe0027199a48, LR=0xfffffe0027199a40, FP=0xfffffe3fec4ebee0
Panicked task 0xfffffe167e18c150: 83911 pages, 132 threads: pid 51284: RoonAppliance
Panicked thread: 0xfffffe166a355fe0, backtrace: 0xfffffe3ff0b034d0, tid: 12343706
		  lr: 0xfffffe002716eb44  fp: 0xfffffe3ff0b03540
		  lr: 0xfffffe002716e928  fp: 0xfffffe3ff0b035b0
		  lr: 0xfffffe00272981ac  fp: 0xfffffe3ff0b035d0
		  lr: 0xfffffe0027289658  fp: 0xfffffe3ff0b03680
		  lr: 0xfffffe00271277e8  fp: 0xfffffe3ff0b03690
		  lr: 0xfffffe002716e5b8  fp: 0xfffffe3ff0b03a20
		  lr: 0xfffffe002716e5b8  fp: 0xfffffe3ff0b03a90
		  lr: 0xfffffe0027920e74  fp: 0xfffffe3ff0b03ab0
		  lr: 0xfffffe0027500df8  fp: 0xfffffe3ff0b03b10
		  lr: 0xfffffe00276cb76c  fp: 0xfffffe3ff0b03c30
		  lr: 0xfffffe00276db4b4  fp: 0xfffffe3ff0b03d30
		  lr: 0xfffffe00276db24c  fp: 0xfffffe3ff0b03db0
		  lr: 0xfffffe00277760dc  fp: 0xfffffe3ff0b03e40
		  lr: 0xfffffe0027289334  fp: 0xfffffe3ff0b03ef0
		  lr: 0xfffffe00271277e8  fp: 0xfffffe3ff0b03f00

last started kext at 8054487359588: com.apple.driver.AppleUSBTopCaseDriver	4050.1 (addr 0xfffffe0026adc000, size 16384)
loaded kexts:
com.binaryfruit.driver.SATSMARTDriver	0.10.3
com.apple.driver.AppleUSBTopCaseDriver	4050.1
com.apple.filesystems.smbfs	3.6.1
com.apple.filesystems.autofs	3.0
com.apple.fileutil	20.036.15
com.apple.driver.AppleTopCaseHIDEventDriver	4050.1
com.apple.fsplaceholder	1.14.0
com.apple.iokit.IOBluetoothSerialManager	8.0.5d7
com.apple.driver.AppleBiometricServices	1
com.apple.iokit.SCSITaskUserClient	436.140.1
com.apple.driver.BCMWLANFirmware4378.Hashstore	1
com.apple.driver.AppleAOPVoiceTrigger	11.5
com.apple.driver.AppleThunderboltIP	4.0.3
com.apple.iokit.AppleBCM5701Ethernet	11.0.0
com.apple.driver.DiskImages.ReadWriteDiskImage	493.0.0
com.apple.driver.DiskImages.UDIFDiskImage	493.0.0
com.apple.driver.DiskImages.RAMBackingStore	493.0.0
com.apple.driver.DiskImages.FileBackingStore	493.0.0
com.apple.driver.CoreKDL	1
com.apple.driver.SEPHibernation	1
com.apple.filesystems.apfs	1677.141.2
com.apple.driver.AppleUSBDeviceNCM	5.0.0
com.apple.driver.AppleSmartBatteryManager	161.0.0
com.apple.driver.AppleFileSystemDriver	3.0.1
com.apple.nke.l2tp	1.9
com.apple.filesystems.tmpfs	1
com.apple.driver.AppleSmartIO2	1
com.apple.IOTextEncryptionFamily	1.0.0
com.apple.filesystems.hfs.kext	556.100.11
com.apple.security.BootPolicy	1
com.apple.BootCache	40
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib	1.0.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless	1.0.0d1
com.apple.driver.ApplePMP	1
com.apple.AppleEmbeddedSimpleSPINORFlasher	1
com.apple.driver.ApplePMPFirmware	1
com.apple.driver.AppleCS42L83Audio	442.26
com.apple.driver.AppleTAS5770LAmp	442.26
com.apple.driver.AppleSPMIPMU	1.0.1
com.apple.AGXG13G	173.28.7
com.apple.driver.AppleT8020SOCTuner	1
com.apple.driver.AppleT8103CLPCv3	1
com.apple.driver.AppleAVD	385
com.apple.driver.AppleAVE2	401.73.4
com.apple.driver.AppleJPEGDriver	4.6.0
com.apple.driver.AppleMobileDispH13G-DCP	140.0
com.apple.driver.usb.AppleUSBHostT8103	1
com.apple.driver.AudioDMAController-T8103	1.60.5
com.apple.driver.AppleSPIMC	1
com.apple.driver.AppleS5L8960XNCO	1
com.apple.driver.AppleT8103PMGR	1
com.apple.driver.AppleS8000AES	1
com.apple.driver.AppleS5L8920XPWM	1.0.0d1
com.apple.driver.AppleS8000DWI	1.0.0d1
com.apple.driver.AppleS5L8960XWatchDogTimer	1
com.apple.driver.AppleInterruptController	1.0.0d1
com.apple.driver.AppleBluetoothModule	1
com.apple.driver.AppleSamsungSerial	1.0.0d1
com.apple.driver.AppleBCMWLANBusInterfacePCIe	1
com.apple.driver.AppleMCDP29XXUpdateSupport	1
com.apple.driver.AppleT8020DART	1
com.apple.driver.AppleS5L8940XI2C	1.0.0d2
com.apple.driver.AppleT8101	1
com.apple.driver.AppleM68Buttons	1.0.0d1
com.apple.iokit.IOUserEthernet	1.0.1
com.apple.driver.usb.AppleUSBUserHCI	1
com.apple.iokit.IOKitRegistryCompatibility	1
com.apple.iokit.EndpointSecurity	1
com.apple.driver.AppleDiskImages2	1
com.apple.AppleSystemPolicy	2.0.0
com.apple.nke.applicationfirewall	311
com.apple.kec.InvalidateHmac	1
com.apple.driver.AppleHIDKeyboard	224
com.apple.driver.usb.cdc.ecm	5.0.0
com.apple.driver.usb.cdc.acm	5.0.0
com.apple.driver.usb.serial	6.0.0
com.apple.kext.triggers	1.0
com.apple.driver.AppleActuatorDriver	4440.3
com.apple.driver.AppleMultitouchDriver	4440.3
com.apple.driver.AppleInputDeviceSupport	4400.35
com.apple.driver.AppleHSBluetoothDriver	4050.1
com.apple.driver.IOBluetoothHIDDriver	8.0.5d7
com.apple.iokit.IOAVBFamily	940.4
com.apple.plugin.IOgPTPPlugin	985.2
com.apple.iokit.IOEthernetAVBController	1.1.0
com.apple.driver.AppleMesaSEPDriver	100.99
com.apple.iokit.IOBiometricFamily	1
com.apple.driver.usb.IOUSBHostHIDDevice	1.2
com.apple.driver.usb.cdc	5.0.0
com.apple.driver.AppleUSBAudio	405.39
com.apple.iokit.IOAudioFamily	300.6.1
com.apple.vecLib.kext	1.2.0
com.apple.driver.AppleAOPAudio	16.2
com.apple.driver.IOBluetoothHostControllerPCIeTransport	8.0.5d7
com.apple.iokit.IOBluetoothHostControllerTransport	8.0.5d7
com.apple.driver.usb.AppleEmbeddedUSBXHCIPCI	1
com.apple.driver.usb.AppleUSBXHCIPCI	1.2
com.apple.driver.AppleEmbeddedUSB	1
com.apple.driver.AppleConvergedIPCOLYBTControl	1
com.apple.driver.AppleConvergedPCI	1
com.apple.driver.AppleBluetoothDebug	1
com.apple.driver.DiskImages.KernelBacked	493.0.0
com.apple.driver.AppleSEPHDCPManager	1.0.1
com.apple.driver.AppleTrustedAccessory	1
com.apple.iokit.AppleSEPGenericTransfer	1
com.apple.driver.AppleXsanScheme	3
com.apple.driver.usb.networking	5.0.0
com.apple.driver.AppleThunderboltUSBDownAdapter	1.0.4
com.apple.driver.AppleThunderboltDPInAdapter	8.1.4
com.apple.driver.AppleThunderboltDPAdapterFamily	8.1.4
com.apple.driver.AppleThunderboltPCIDownAdapter	4.1.1
com.apple.driver.AppleBTM	1.0.1
com.apple.nke.ppp	1.9
com.apple.driver.AppleDCPDPTXProxy	1.0.0
com.apple.driver.DCPDPFamilyProxy	1
com.apple.driver.AppleBSDKextStarter	3
com.apple.driver.AppleSPU	1
com.apple.driver.AppleDiagnosticDataAccessReadOnly	1.0.0
com.apple.iokit.IONVMeFamily	2.1.0
com.apple.driver.AppleNANDConfigAccess	1.0.0
com.apple.filesystems.hfs.encodings.kext	1
com.apple.AGXFirmwareKextG13GRTBuddy	173.28.7
com.apple.AGXFirmwareKextRTBuddy64	173.28.7
com.apple.driver.AppleCSEmbeddedAudio	442.26
com.apple.driver.AppleEmbeddedAudio	442.26
com.apple.iokit.AppleARMIISAudio	80.34.1
com.apple.driver.AppleStockholmControl	1.0.0
com.apple.driver.AppleHPM	3.4.4
com.apple.driver.AppleDialogPMU	1.0.1
com.apple.iokit.IOGPUFamily	21.11
com.apple.driver.AppleMCA2-T8103	540.10
com.apple.driver.ApplePassthroughPPM	3.0
com.apple.driver.AppleH11ANEInterface	4.76.0
com.apple.driver.DCPAVFamilyProxy	1
com.apple.iokit.IOMobileGraphicsFamily-DCP	343.0.0
com.apple.driver.AppleDCP	1
com.apple.driver.AppleFirmwareKit	1
com.apple.iokit.IOMobileGraphicsFamily	343.0.0
com.apple.driver.AppleSPMI	1.0.1
com.apple.driver.AppleUSBXDCIARM	1.0
com.apple.driver.AppleUSBXDCI	1.0
com.apple.iokit.IOUSBDeviceFamily	2.0.0
com.apple.driver.usb.AppleUSBXHCIARM	1
com.apple.driver.usb.AppleUSBXHCI	1.2
com.apple.driver.AppleEmbeddedUSBHost	1
com.apple.driver.usb.AppleUSBHub	1.2
com.apple.driver.usb.AppleUSBHostCompositeDevice	1.2
com.apple.driver.AppleT8103TypeCPhy	1
com.apple.driver.AppleSART	1
com.apple.driver.ApplePMGR	1
com.apple.driver.watchdog	1
com.apple.driver.usb.AppleUSBHostPacketFilter	1.0
com.apple.driver.AppleDisplayCrossbar	1.0.0
com.apple.driver.AppleTypeCPhy	1
com.apple.driver.AppleThunderboltNHI	7.2.8
com.apple.driver.AppleT8103PCIeC	1
com.apple.iokit.IOThunderboltFamily	9.3.2
com.apple.driver.ApplePIODMA	1
com.apple.driver.AppleT8103PCIe	1
com.apple.driver.AppleMultiFunctionManager	1
com.apple.driver.AppleEmbeddedPCIE	1
com.apple.driver.AppleBluetoothDebugService	1
com.apple.driver.AppleBCMWLANCore	1.0.0
com.apple.iokit.IO80211FamilyV2	1200.12.2b1
com.apple.driver.IOImageLoader	1.0.0
com.apple.driver.corecapture	1.0.4
com.apple.iokit.IODisplayPortFamily	1.0.0
com.apple.driver.AppleGPIOICController	1.0.2
com.apple.driver.AppleFireStormErrorHandler	1
com.apple.driver.AppleMobileApNonce	1
com.apple.iokit.IOTimeSyncFamily	985.2
com.apple.driver.DiskImages	493.0.0
com.apple.iokit.IOGraphicsFamily	585.1
com.apple.iokit.IOBluetoothFamily	8.0.5d7
com.apple.iokit.IOBluetoothPacketLogger	8.0.5d7
com.apple.driver.FairPlayIOKit	68.7.1
com.apple.iokit.CoreAnalyticsFamily	1
com.apple.driver.AppleSSE	1.0
com.apple.driver.AppleSEPKeyStore	2
com.apple.driver.AppleUSBTDM	511.141.1
com.apple.iokit.IOUSBMassStorageDriver	184.140.2
com.apple.iokit.IOPCIFamily	2.9
com.apple.iokit.IOSCSIBlockCommandsDevice	436.140.1
com.apple.iokit.IOSCSIArchitectureModelFamily	436.140.1
com.apple.driver.AppleIPAppender	1.0
com.apple.driver.AppleFDEKeyStore	28.30
com.apple.driver.AppleEffaceableStorage	1.0
com.apple.driver.AppleCredentialManager	1.0
com.apple.driver.KernelRelayHost	1
com.apple.iokit.IOUSBHostFamily	1.2
com.apple.driver.AppleUSBHostMergeProperties	1.2
com.apple.driver.usb.AppleUSBCommon	1.0
com.apple.driver.AppleSMC	3.1.9
com.apple.driver.RTBuddy	1.0.0
com.apple.driver.AppleEmbeddedTempSensor	1.0.0
com.apple.driver.AppleARMPMU	1.0
com.apple.iokit.IOAccessoryManager	1.0.0
com.apple.driver.AppleOnboardSerial	1.0
com.apple.iokit.IOSkywalkFamily	1
com.apple.driver.mDNSOffloadUserClient	1.0.1b8
com.apple.iokit.IONetworkingFamily	3.4
com.apple.iokit.IOSerialFamily	11
com.apple.driver.AppleSEPManager	1.0.1
com.apple.driver.AppleA7IOP	1.0.2
com.apple.driver.IOSlaveProcessor	1
com.apple.driver.AppleBiometricSensor	2
com.apple.iokit.IOHIDFamily	2.0.0
com.apple.AUC	1.0
com.apple.iokit.IOAVFamily	1.0.0
com.apple.iokit.IOHDCPFamily	1.0.0
com.apple.iokit.IOCECFamily	1
com.apple.iokit.IOAudio2Family	1.0
com.apple.driver.AppleEmbeddedAudioLibs	1.17
com.apple.driver.AppleFirmwareUpdateKext	1
com.apple.driver.AppleM2ScalerCSCDriver	265.0.0
com.apple.iokit.IOSurface	290.8.1
com.apple.driver.IODARTFamily	1
com.apple.security.quarantine	4
com.apple.security.sandbox	300.0
com.apple.kext.AppleMatch	1.0.0d1
com.apple.driver.AppleMobileFileIntegrity	1.0.5
com.apple.kext.CoreTrust	1
com.apple.security.AppleImage4	3.0.0
com.apple.iokit.IOCryptoAcceleratorFamily	1.0.1
com.apple.driver.AppleARMPlatform	1.0.2
com.apple.iokit.IOStorageFamily	2.1
com.apple.iokit.IOSlowAdaptiveClockingFamily	1.0.0
com.apple.iokit.IOReportFamily	47
com.apple.kec.pthread	1
com.apple.kec.corecrypto	11.1
com.apple.kec.Libm	1



** Stackshot Succeeded ** Bytes Traced 560604 (Uncompressed 1437872) **

And here’s another panic that forced a restart. Again, it looks like RoonAppliance is the culprit. On this occasion the panic occurred when the Mac mini M1 was idle - no music playing to any zones, and no backups running. My only hunch is that this seems to happen after RoonServer has been running for a few days so maybe something to do with the increased memory usage over time (as reported in various other threads).

I’ve included the panic log below. Let me know if you need any further details:

panic(cpu 1 caller 0xfffffe0023664df8): "so 0xfffffe16762a9430 SB_LOCK not set"
Debugger message: panic
Memory ID: 0xff
OS release type: User
OS version: 20G165
Kernel version: Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:20 PDT 2021; root:xnu-7195.141.6~3/RELEASE_ARM64_T8101
Fileset Kernelcache UUID: 6304A06696A657F4CF48CC569B129642
Kernel UUID: DA16DC13-5845-3638-9BB4-B14F9AC08E55
iBoot version: iBoot-6723.140.2
secure boot?: YES
Paniclog version: 13
KernelCache slide: 0x000000001b66c000
KernelCache base:  0xfffffe0022670000
Kernel slide:      0x000000001c1b4000
Kernel text base:  0xfffffe00231b8000
Kernel text exec base:  0xfffffe0023284000
mach_absolute_time: 0x5ca9a48428b
Epoch Time:        sec       usec
  Boot    : 0x615c5992 0x000590c0
  Sleep   : 0x00000000 0x00000000
  Wake    : 0x00000000 0x00000000
  Calendar: 0x616065f1 0x0004394f

CORE 0 recently retired instr at 0xfffffe00233f6d50
CORE 1 recently retired instr at 0xfffffe00233f5688
CORE 2 recently retired instr at 0xfffffe00233f6d50
CORE 3 recently retired instr at 0xfffffe00233f6d50
CORE 4 recently retired instr at 0xfffffe00233f6d54
CORE 5 recently retired instr at 0xfffffe00233f6d54
CORE 6 recently retired instr at 0xfffffe00233f6d54
CORE 7 recently retired instr at 0xfffffe00233f6d54
CORE 0 PVH locks held: None
CORE 1 PVH locks held: None
CORE 2 PVH locks held: None
CORE 3 PVH locks held: None
CORE 4 PVH locks held: None
CORE 5 PVH locks held: None
CORE 6 PVH locks held: None
CORE 7 PVH locks held: None
CORE 0: PC=0x00000001380f0ea8, LR=0x00000001380f1d6c, FP=0x000000016b164200
CORE 1 is the one that panicked. Check the full backtrace for details.
CORE 2: PC=0xfffffe0025636ffc, LR=0xfffffe002562763c, FP=0xfffffe3fe5532ca0
CORE 3: PC=0xfffffe00238239f4, LR=0xfffffe00238239b4, FP=0xfffffe3fc3c83ba0
CORE 4: PC=0xfffffe00232fda48, LR=0xfffffe00232fda40, FP=0xfffffe3fe8b7bee0
CORE 5: PC=0xfffffe00232fda48, LR=0xfffffe00232fda40, FP=0xfffffe3fe4eb3ee0
CORE 6: PC=0xfffffe00232fda48, LR=0xfffffe00232fda40, FP=0xfffffe3fef4d3ee0
CORE 7: PC=0xfffffe00232fda48, LR=0xfffffe00232fda40, FP=0xfffffe3fe560bee0
Panicked task 0xfffffe1681bfe1f8: 208939 pages, 113 threads: pid 22809: RoonAppliance
Panicked thread: 0xfffffe16704fc000, backtrace: 0xfffffe3fe5d034d0, tid: 153885
		  lr: 0xfffffe00232d2b44  fp: 0xfffffe3fe5d03540
		  lr: 0xfffffe00232d2928  fp: 0xfffffe3fe5d035b0
		  lr: 0xfffffe00233fc1ac  fp: 0xfffffe3fe5d035d0
		  lr: 0xfffffe00233ed658  fp: 0xfffffe3fe5d03680
		  lr: 0xfffffe002328b7e8  fp: 0xfffffe3fe5d03690
		  lr: 0xfffffe00232d25b8  fp: 0xfffffe3fe5d03a20
		  lr: 0xfffffe00232d25b8  fp: 0xfffffe3fe5d03a90
		  lr: 0xfffffe0023a84e74  fp: 0xfffffe3fe5d03ab0
		  lr: 0xfffffe0023664df8  fp: 0xfffffe3fe5d03b10
		  lr: 0xfffffe002382f76c  fp: 0xfffffe3fe5d03c30
		  lr: 0xfffffe002383f4b4  fp: 0xfffffe3fe5d03d30
		  lr: 0xfffffe002383f24c  fp: 0xfffffe3fe5d03db0
		  lr: 0xfffffe00238da0dc  fp: 0xfffffe3fe5d03e40
		  lr: 0xfffffe00233ed334  fp: 0xfffffe3fe5d03ef0
		  lr: 0xfffffe002328b7e8  fp: 0xfffffe3fe5d03f00

last started kext at 2420126213675: com.apple.plugin.IOAVBDiscoveryPlugin	940.4 (addr 0xfffffe0022db8000, size 16384)
loaded kexts:
com.binaryfruit.driver.SATSMARTDriver	0.10.3
com.apple.filesystems.smbfs	3.6.1
com.apple.fileutil	20.036.15
com.apple.filesystems.autofs	3.0
com.apple.fsplaceholder	1.14.0
com.apple.iokit.IOBluetoothSerialManager	8.0.5d7
com.apple.driver.AppleBiometricServices	1
com.apple.driver.AppleTopCaseHIDEventDriver	4050.1
com.apple.driver.AppleUSBTopCaseDriver	4050.1
com.apple.iokit.SCSITaskUserClient	436.140.1
com.apple.driver.BCMWLANFirmware4378.Hashstore	1
com.apple.driver.AppleAOPVoiceTrigger	11.5
com.apple.driver.AppleThunderboltIP	4.0.3
com.apple.iokit.AppleBCM5701Ethernet	11.0.0
com.apple.driver.CoreKDL	1
com.apple.driver.SEPHibernation	1
com.apple.driver.AppleUSBDeviceNCM	5.0.0
com.apple.driver.DiskImages.ReadWriteDiskImage	493.0.0
com.apple.driver.DiskImages.UDIFDiskImage	493.0.0
com.apple.driver.DiskImages.RAMBackingStore	493.0.0
com.apple.driver.DiskImages.FileBackingStore	493.0.0
com.apple.driver.AppleSmartBatteryManager	161.0.0
com.apple.filesystems.apfs	1677.141.2
com.apple.driver.AppleFileSystemDriver	3.0.1
com.apple.nke.l2tp	1.9
com.apple.filesystems.tmpfs	1
com.apple.driver.AppleSmartIO2	1
com.apple.driver.ApplePMP	1
com.apple.IOTextEncryptionFamily	1.0.0
com.apple.filesystems.hfs.kext	556.100.11
com.apple.security.BootPolicy	1
com.apple.BootCache	40
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib	1.0.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless	1.0.0d1
com.apple.AppleEmbeddedSimpleSPINORFlasher	1
com.apple.driver.ApplePMPFirmware	1
com.apple.driver.AppleCS42L83Audio	442.26
com.apple.driver.AppleTAS5770LAmp	442.26
com.apple.driver.AppleSPMIPMU	1.0.1
com.apple.driver.AppleT8020SOCTuner	1
com.apple.driver.AppleT8103CLPCv3	1
com.apple.AGXG13G	173.28.7
com.apple.driver.AppleAVD	385
com.apple.driver.AppleAVE2	401.73.4
com.apple.driver.AppleJPEGDriver	4.6.0
com.apple.driver.AppleMobileDispH13G-DCP	140.0
com.apple.driver.usb.AppleUSBHostT8103	1
com.apple.driver.AudioDMAController-T8103	1.60.5
com.apple.driver.AppleSPIMC	1
com.apple.driver.AppleS5L8960XNCO	1
com.apple.driver.AppleT8103PMGR	1
com.apple.driver.AppleS8000AES	1
com.apple.driver.AppleS5L8920XPWM	1.0.0d1
com.apple.driver.AppleS8000DWI	1.0.0d1
com.apple.driver.AppleS5L8960XWatchDogTimer	1
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If @support could shed some light on this, or suggest some way to avoid it in the future, I would be grateful.

@beka just posted this recently for a different issue:

it’s worth reading.

As for RoonAppliance, that’s just Roon – all the other Roon stuff are helpers. RoonAppliance is “the Roon Core”.

If you are getting kernel panics, the question is what is panicking – while RoonAppliance is clearly the process running when the kernel panic occurred, this is clearly a problem with the operating system.

I’d look into hardware issues or driver issues. Do you have any custom drivers or any hardware connected to the device? Is Roon using the driver and/or hardware when the panic occurs?

I would like to point to the code translation stuff (Rosetta) on the M1, but we have thousands of users using the M1 machines without panics, so I doubt it’s that.

Your routers and other hardware outside and not connected to the mac could not possibly be causing this.

A kernel panic is a ‘crash’ of the kernel. Operating system kernels core job is to prevent this type of thing, to disallow processes that do bad from crashing the machine. Drivers mostly run in the kernel, and hardware is almost always handled through a heavy layer in the kernel. That’s why I would start thinking in that direction when it comes to panics.

Thanks for the detailed response. I’m fairly sure I don’t have any hardware issues, but I have been running Avast and DriveDX, both of which install their own kexts. I’ll try deleting those, as I’m fairly sure they’re the only things I installed that run at the system level, and see how I get on. I’ll also read through the post you linked and see if I can find any other pointers.

Thanks again.

please do let us know if you find something that helps… this comes up every once in a while, and it’s always helpful to be able to search for it here.

I had assumed you weren’t running antivirus on mac, my guess is that it’s avast, but I don’t know where DriveDX hooks stuff (or why it needs kernel access like that)… I would have assumed it would just use userland SMART access, but I only spent 10 seconds on their website.

Will do. I’ll report back in a few days. Thanks again.

It’s been a while since I installed DriveDX, so I had to look it up: DriveDX doesn’t install a kext, at least not directly, but BinaryFruit provide a separate kext that allows you to read the SMART data from external drives. Without this DriveDX can only monitor the internal drive. From what you’ve said, this is a likely candidate so I’ve uninstalled it along with Avast. If everything remains stable over the next week I might try reinstalling it (or Avast) to see if I can identify which is the culprit.

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Hi @DaveN - did you manage to isolate the issue? I am also having similar looking kernel panics from RoonApplicance on an M1 Mac mini.

I’m not sure I managed to identify the exact cause, but it has stopped happening. I mentioned that I removed any apps that had installed 3rd party kexts (Avast, etc) but I also changed a couple of the usb hubs. When I was getting the kernel panics I had one hub piggy-backed off another. I got rid of both of those and replaced them with a Sabrent powered hub. I suspect the old hub was probably the issue so it might be worth taking a look at what usb devices you have attached to the mini to see if you can narrow it down to a specific device.

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