Here is a Problem Report , when i forcefully had to shut down my mac after it keept freezing from data transfer bewteen the buggy external ssd (with all the important data and the new one panic(cpu 2 caller 0xfffffe002c081e30): watchdog timeout: no checkins from watchdogd in 305 seconds (1209 totalcheckins since monitoring last enabled), shutdown in progress Debugger message: panic Memory ID: 0x6 OS release type: User OS version: 20G95 Kernel version: Darwin Kernel Version 20.6.0: Wed Jun 23 00:26:27 PDT 2021; root:xnu-7195.141.2~5/RELEASE_ARM64_T8101 Fileset Kernelcache UUID: 15F4DFDFA9E0154FED96EA8997E65429 Kernel UUID: AC4A14A7-8A8E-3AE6-85A6-55E6B2502BF9 iBoot version: iBoot-6723.140.2 secure boot?: YES Paniclog version: 13 KernelCache slide: 0x00000000215d0000 KernelCache base: 0xfffffe00285d4000 Kernel slide: 0x0000000022118000 Kernel text base: 0xfffffe002911c000 Kernel text exec base: 0xfffffe00291e8000 mach_absolute_time: 0x455cc0d187 Epoch Time: sec usec Boot : 0x6576e430 0x000444ac Sleep : 0x00000000 0x00000000 Wake : 0x00000000 0x00000000 Calendar: 0x657714a7 0x0002c965 CORE 0 recently retired instr at 0xfffffe002935ad6c CORE 1 recently retired instr at 0xfffffe002935ad6c CORE 2 recently retired instr at 0xfffffe00293596a4 CORE 3 recently retired instr at 0xfffffe002935ad6c CORE 4 recently retired instr at 0xfffffe002935ad70 CORE 5 recently retired instr at 0xfffffe002935ad70 CORE 6 recently retired instr at 0xfffffe002935ad70 CORE 7 recently retired instr at 0xfffffe002935ad70 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=0xfffffe00291f8c28, LR=0xfffffe00291f8c28, FP=0x0000000000000000 CORE 1: PC=0xfffffe0029261a64, LR=0xfffffe0029261a5c, FP=0xfffffe3f5d12bee0 CORE 2 is the one that panicked. Check the full backtrace for details. CORE 3: PC=0xfffffe0029261a64, LR=0xfffffe0029261a5c, FP=0xfffffe309980bee0 CORE 4: PC=0xfffffe0029261a64, LR=0xfffffe0029261a5c, FP=0xfffffe3f5d44bee0 CORE 5: PC=0xfffffe0029261a64, LR=0xfffffe0029261a5c, FP=0xfffffe3026e73ee0 CORE 6: PC=0xfffffe0029261a64, LR=0xfffffe0029261a5c, FP=0xfffffe3099553ee0 CORE 7: PC=0xfffffe0029261a64, LR=0xfffffe0029261a5c, FP=0xfffffe3f5750bee0 Total cpu_usage: 17654829 Thread task pri cpu_usage 0xfffffe1666eb0000 kernel_task 95 5285 0xfffffe1666eb6ca0 kernel_task 0 2771131 0xfffffe1666fc8000 kernel_task 0 7783300 0xfffffe166717d320 kernel_task 0 0 0xfffffe1666eb3960 kernel_task 0 0 Panicked task 0xfffffe16669f0688: 34406 pages, 471 threads: pid 0: kernel_task Panicked thread: 0xfffffe1666eb6ca0, backtrace: 0xfffffe303c7e38b0, tid: 388 lr: 0xfffffe0029236b68 fp: 0xfffffe303c7e3920 lr: 0xfffffe002923694c fp: 0xfffffe303c7e3990 lr: 0xfffffe00293601c8 fp: 0xfffffe303c7e39b0 lr: 0xfffffe0029351674 fp: 0xfffffe303c7e3a60 lr: 0xfffffe00291ef7e8 fp: 0xfffffe303c7e3a70 lr: 0xfffffe00292365dc fp: 0xfffffe303c7e3e00 lr: 0xfffffe00292365dc fp: 0xfffffe303c7e3e70 lr: 0xfffffe00299e8ec4 fp: 0xfffffe303c7e3e90 lr: 0xfffffe002c081e30 fp: 0xfffffe303c7e3ec0 lr: 0xfffffe002c0815c8 fp: 0xfffffe303c7e3f00 lr: 0xfffffe002a5d5668 fp: 0xfffffe303c7e3f20 lr: 0xfffffe002a34e8c8 fp: 0xfffffe303c7e3fb0 lr: 0xfffffe002993d308 fp: 0xfffffe303c7e3fc0 lr: 0xfffffe0029354148 fp: 0xfffffe303c7e3fe0 lr: 0xfffffe00291ef85c fp: 0xfffffe303c7e3ff0 lr: 0xfffffe0029261a5c fp: 0xfffffe3f5cfcbee0 lr: 0xfffffe0029261c68 fp: 0xfffffe3f5cfcbf00 lr: 0xfffffe00291f8c38 fp: 0x0000000000000000 Kernel Extensions in backtrace: com.apple.driver.AppleInterruptController(1.0d1)[D15A24BC-1D17-3665-85C0-A51650EB6565]@0xfffffe002a34c000->0xfffffe002a34ffff dependency: com.apple.driver.AppleARMPlatform(1.0.2)[5E9CCC2E-8DAD-3602-9B36-6A976B6F7995]@0xfffffe0029b44000->0xfffffe0029b93fff com.apple.driver.watchdog(1.0)[AA919758-2F6F-307D-B07C-B3FCBBA81FA7]@0xfffffe002c080000->0xfffffe002c083fff com.apple.driver.AppleS5L8960XWatchDogTimer(1.0)[6EA4F8EF-BFB1-33E1-B0AA-B61F94BA1ED9]@0xfffffe002a5d4000->0xfffffe002a5d7fff dependency: com.apple.driver.AppleARMPlatform(1.0.2)[5E9CCC2E-8DAD-3602-9B36-6A976B6F7995]@0xfffffe0029b44000->0xfffffe0029b93fff dependency: com.apple.driver.watchdog(1)[AA919758-2F6F-307D-B07C-B3FCBBA81FA7]@0xfffffe002c080000->0xfffffe002c083fff dependency: com.apple.iokit.IOReportFamily(47)[11A4640E-66CF-399D-BD06-F13C57BF7D16]@0xfffffe002b654000->0xfffffe002b657fff last started kext at 289612704086: de.rme-audio.driver.RMEFirefaceUSB 15 (addr 0xfffffe00284ec000, size 16384) last stopped kext at 224518184622: com.apple.filesystems.msdosfs 1.10 (addr 0xfffffe00290d0000, size 16384) loaded kexts: de.rme-audio.driver.RMEFirefaceUSB 15 com.apple.filesystems.exfat 1.4 com.apple.driver.AppleTopCaseHIDEventDriver 4050.1 com.apple.filesystems.autofs 3.0 com.apple.fileutil 20.036.15 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.CoreKDL 1 com.apple.driver.SEPHibernation 1 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 1677.141.1 com.apple.driver.AppleUSBDeviceNCM 5.0.0 com.apple.driver.AppleThunderboltIP 4.0.3 com.apple.driver.AppleALSColorSensor 1.0.0d1 com.apple.driver.AppleAOPVoiceTrigger 11.5 com.apple.driver.AppleFileSystemDriver 3.0.1 com.apple.nke.l2tp 1.9 com.apple.filesystems.tmpfs 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.driver.ApplePMPFirmware 1 com.apple.driver.AppleSPMIPMU 1.0.1 com.apple.AGXG13G 173.28.7 com.apple.driver.AppleAVE2 401.73.4 com.apple.driver.AppleSmartIO2 1 com.apple.driver.AppleMobileDispH13G-DCP 140.0 com.apple.driver.usb.AppleUSBHostT8103 1 com.apple.driver.AppleCS42L83Audio 442.26 com.apple.driver.AppleJPEGDriver 4.6.0 com.apple.AppleEmbeddedSimpleSPINORFlasher 1 com.apple.driver.AppleTAS5770LAmp 442.26 com.apple.driver.AppleDPDisplayTCON 1 com.apple.driver.AppleAVD 385 com.apple.driver.AppleT8103CLPCv3 1 com.apple.driver.AppleT8020SOCTuner 1 com.apple.driver.AudioDMAController-T8103 1.60.5 com.apple.driver.AppleSummitLCD 1.0.0 com.apple.driver.AppleS5L8960XNCO 1 com.apple.driver.AppleT8103PMGR 1 com.apple.driver.AppleS8000AES 1 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.AppleT8020DART 1 com.apple.driver.AppleSynopsysMIPIDSI 1.0.0 com.apple.driver.AppleS5L8920XPWM 1.0.0d1 com.apple.driver.AppleS5L8940XI2C 1.0.0d2 com.apple.driver.AppleSPIMC 1 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.AppleHSBluetoothDriver 4050.1 com.apple.driver.IOBluetoothHIDDriver 8.0.5d7 com.apple.driver.AppleHIDKeyboard 224 com.apple.driver.AppleActuatorDriver 4440.3 com.apple.driver.AppleMultitouchDriver 4440.3 com.apple.kext.triggers 1.0 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.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.AppleSEPHDCPManager 1.0.1 com.apple.driver.AppleTrustedAccessory 1 com.apple.iokit.AppleSEPGenericTransfer 1 com.apple.driver.DiskImages.KernelBacked 493.0.0 com.apple.driver.IOBluetoothHostControllerPCIeTransport 8.0.5d7 com.apple.iokit.IOBluetoothHostControllerTransport 8.0.5d7 com.apple.driver.AppleConvergedIPCOLYBTControl 1 com.apple.driver.AppleConvergedPCI 1 com.apple.driver.AppleBluetoothDebug 1 com.apple.driver.AppleBTM 1.0.1 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.AppleAOPAudio 16.2 com.apple.nke.ppp 1.9 com.apple.driver.AppleDCPDPTXProxy 1.0.0 com.apple.driver.DCPDPFamilyProxy 1 com.apple.AGXFirmwareKextG13GRTBuddy 173.28.7 com.apple.AGXFirmwareKextRTBuddy64 173.28.7 com.apple.driver.AppleBSDKextStarter 3 com.apple.filesystems.hfs.encodings.kext 1 com.apple.driver.AppleSPU 1 com.apple.iokit.IONVMeFamily 2.1.0 com.apple.driver.AppleStockholmControl 1.0.0 com.apple.driver.AppleDiagnosticDataAccessReadOnly 1.0.0 com.apple.driver.AppleNANDConfigAccess 1.0.0 com.apple.driver.AppleUSBXDCIARM 1.0 com.apple.driver.AppleUSBXDCI 1.0 com.apple.iokit.IOUSBDeviceFamily 2.0.0 com.apple.driver.AppleDialogPMU 1.0.1 com.apple.iokit.IOGPUFamily 21.11 com.apple.driver.DCPAVFamilyProxy 1 com.apple.driver.AppleH13CameraInterface 3.58.0 com.apple.driver.AppleH10PearlCameraInterface 16.15.1 com.apple.iokit.IOMobileGraphicsFamily-DCP 343.0.0 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.AppleCSEmbeddedAudio 442.26 com.apple.driver.AppleDCP 1 com.apple.driver.AppleFirmwareKit 1 com.apple.driver.AppleEmbeddedAudio 442.26 com.apple.iokit.AppleARMIISAudio 80.34.1 com.apple.driver.AppleHIDTransportSPI 4400.35 com.apple.driver.AppleHIDTransport 4400.35 com.apple.driver.AppleInputDeviceSupport 4400.35 com.apple.driver.AppleHPM 3.4.4 com.apple.driver.AppleH11ANEInterface 4.75.0 com.apple.driver.AppleSPMI 1.0.1 com.apple.driver.ApplePassthroughPPM 3.0 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.iokit.IODisplayPortFamily 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.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.AppleMobileDispH13G-DFR 140.0 com.apple.iokit.IOMobileGraphicsFamily 343.0.0 com.apple.driver.AppleMCA2-T8103 540.10 com.apple.driver.AppleGPIOICController 1.0.2 com.apple.driver.AppleFireStormErrorHandler 1 com.apple.driver.AppleMultiFunctionManager 1 com.apple.driver.corecapture 1.0.4 com.apple.driver.AppleEmbeddedPCIE 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 47032 (Uncompressed 161152) **