panic(cpu 8 caller 0xffffff800ff64a25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds service: com.apple.logd, total successful checkins since load (2370 seconds ago): 238, last successful checkin: 0 seconds ago service: com.apple.WindowServer, total successful checkins since load (2340 seconds ago): 222, last successful checkin: 120 seconds ago service: com.apple.remoted, total successful checkins since load (2370 seconds ago): 236, last successful checkin: 0 seconds ago Backtrace (CPU 8), Frame : Return Address 0xffffff8032f9b670 : 0xffffff800ccbab4d 0xffffff8032f9b6c0 : 0xffffff800cdfd7e3 0xffffff8032f9b700 : 0xffffff800cdede1a 0xffffff8032f9b750 : 0xffffff800cc5fa2f 0xffffff8032f9b770 : 0xffffff800ccba3ed 0xffffff8032f9b890 : 0xffffff800ccba6d8 0xffffff8032f9b900 : 0xffffff800d4bf004 0xffffff8032f9b970 : 0xffffff800ff64a25 0xffffff8032f9b980 : 0xffffff800ff64678 0xffffff8032f9b9a0 : 0xffffff800d44628e 0xffffff8032f9b9f0 : 0xffffff800ff63ab4 0xffffff8032f9bb20 : 0xffffff800d45045b 0xffffff8032f9bc80 : 0xffffff800cda8e51 0xffffff8032f9bd90 : 0xffffff800ccc0147 0xffffff8032f9be00 : 0xffffff800cc96905 0xffffff8032f9be60 : 0xffffff800ccae062 0xffffff8032f9bef0 : 0xffffff800cdd1fc3 0xffffff8032f9bfa0 : 0xffffff800cc60216 Kernel Extensions in backtrace: com.apple.driver.watchdog(1.0)[2C1307C5-FD71-3802-8D68-A67DB24BCB4A]@0xffffff800ff63000->0xffffff800ff64fff Process name corresponding to current thread: watchdogd Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev chunklist-security-epoch=0 -chunklist-no-rev2-dev Mac OS version: 20D91 Kernel version: Darwin Kernel Version 20.3.0: Thu Jan 21 00:07:06 PST 2021; root:xnu-7195.81.3~1/RELEASE_X86_64 Kernel UUID: C86236B2-4976-3542-80CA-74A6B8B4BA03 KernelCache slide: 0x000000000ca00000 KernelCache base: 0xffffff800cc00000 Kernel slide: 0x000000000ca10000 Kernel text base: 0xffffff800cc10000 __HIB text base: 0xffffff800cb00000 System model name: iMac20,1 (Mac-CFF7D910A743CAAF) System shutdown begun: NO Hibernation exit count: 0 System uptime in nanoseconds: 2377645454593 Last Sleep: absolute base_tsc base_nano Uptime : 0x0000022996b67970 Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000 Wake : 0x0000000000000000 0x0000000e365a8778 0x0000000000000000 last started kext at 16517271895: >!AHIDKeyboard 223 (addr 0xffffff800e092000, size 16384) last stopped kext at 209665172883: >usb.!UHostPacketFilter 1.0 (addr 0xffffff800fa4f000, size 8192) loaded kexts: >!ATopCaseHIDEventDriver 4030.5 >AudioAUUC 1.70 >!AHIDALSService 1 >!APlatformEnabler 2.7.0d0 >AGPM 119 >X86PlatformShim 1.0.0 @filesystems.autofs 3.0 @fileutil 20.036.15 >!AUpstreamUserClient 3.6.8 @kext.AMDRadeonX6000 4.0.2 @kext.AMDRadeonServiceManager 4.0.2 >!AGraphicsDevicePolicy 6.2.2 @AGDCPluginDisplayMetrics 6.2.2 >pmtelemetry 1 >LuaHardwareAccess 1.0.16 |IOUserEthernet 1.0.1 |IO!BSerialManager 8.0.3d9 @Dont_Steal_Mac_OS_X 7.0.0 >!A!IKBLGraphics 16.0.1 >!AHV 1 >!ADiskImages2 1 >!A!ISlowAdaptiveClocking 4.0.0 >!A!ICFLGraphicsFramebuffer 16.0.1 >!AMCCSControl 1.14 >!ABridgeAudio!C 100.2 >!AThunderboltIP 4.0.3 >!AGFXHDA 100.1.431 >BridgeAudioCommunication 100.2 >!AAVEBridge 6.1 >!A!IPCHPMC 2.0.1 >!UCardReader 511.60.2 >BCMWLANFirmware4378.Hashstore 1 >BCMWLANFirmware4377.Hashstore 1 >BCMWLANFirmware4364.Hashstore 1 >BCMWLANFirmware4355.Hashstore 1 |!ABCM5701Ethernet 11.0.0 >!ABCMWLANBusInterfacePCIeMac 1 @filesystems.tmpfs 1 @filesystems.hfs.kext 556.60.1 @BootCache 40 @!AFSCompression.!AFSCompressionTypeZlib 1.0.0 @!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1 @filesystems.apfs 1677.81.1 @private.KextAudit 1.0 >!AACPIButtons 6.1 >!ASMBIOS 2.1 >!AACPIEC 6.1 >!AAPIC 1.7 @!ASystemPolicy 2.0.0 @nke.applicationfirewall 310 |IOKitRegistryCompatibility 1 |EndpointSecurity 1 >!AHIDKeyboard 223 >!AMultitouchDriver 4400.28 >!AInputDeviceSupport 4400.35 >!AHS!BDriver 4030.5 >IO!BHIDDriver 8.0.3d9 @kext.triggers 1.0 |IOAVB!F 930.1 @plugin.IOgPTPPlugin 900.11 |IOEthernetAVB!C 1.1.0 >X86PlatformPlugin 1.0.0 @kext.AMDRadeonX6200HWLibs 1.0 @!AGPUWrangler 6.2.2 |IOSlowAdaptiveClocking!F 1.0.0 |IOAccelerator!F2 439.52 >!AGraphicsControl 6.2.2 @kext.AMDRadeonX6000Framebuffer 4.0.2 @kext.AMDSupport 4.0.2 @!AGraphicsDeviceControl 6.2.2 |IO!BHost!CUARTTransport 8.0.3d9 |IO!BHost!CTransport 8.0.3d9 >!A!ILpssUARTv1 3.0.60 >!A!ILpssUARTCommon 3.0.60 >!AOnboardSerial 1.0 >!ASMBus!C 1.0.18d1 |IONDRVSupport 585 |IOAudio!F 300.6.1 @vecLib.kext 1.2.0 @kext.AMDRadeonX6000HWServices 4.0.2 |IOGraphics!F 585 >!ASMBusPCI 1.0.14d1 >IOPlatformPlugin!F 6.0.0d8 >usb.cdc.ncm 5.0.0 >usb.cdc 5.0.0 >usb.networking 5.0.0 >usb.!UHostCompositeDevice 1.2 >!AThunderboltDPInAdapter 8.1.4 >!AThunderboltDPAdapter!F 8.1.4 >!AThunderboltPCIDownAdapter 4.1.1 >!AHPM 3.4.4 >!A!ILpssI2C!C 3.0.60 >!A!ILpssI2C 3.0.60 >!A!ILpssDmac 3.0.60 >!AThunderboltNHI 7.2.8 |IOThunderbolt!F 9.3.2 >!ABCMWLANCoreMac 1.0.0 |IOSerial!F 11 |IO80211!FV2 1200.12.2b1 >IOImageLoader 1.0.0 >corecapture 1.0.4 >!ABSDKextStarter 3 |IOSurface 289.3 |IOSkywalk!F 1 >mDNSOffloadUserClient 1.0.1b8 @filesystems.hfs.encodings.kext 1 |IOUSB!F 900.4.2 >usb.!UVHCIBCE 1.2 >usb.!UVHCICommonBCE 1.0 >usb.!UVHCI 1.2 >usb.!UVHCICommon 1.0 >!AEffaceableNOR 1.0 |IOBufferCopy!C 1.1.0 |IOBufferCopyEngine!F 1 |IONVMe!F 2.1.0 >usb.!UXHCIPCI 1.2 >usb.!UXHCI 1.2 >!AEFINVRAM 2.1 >!AEFIRuntime 2.1 >!ASMCRTC 1.0 |IOSMBus!F 1.1 |IOHID!F 2.0.0 $!AImage4 3.0.0 |IOTimeSync!F 900.11 |IONetworking!F 3.4 >DiskImages 493.0.0 |IO!B!F 8.0.3d9 |IOReport!F 47 |IO!BPacketLogger 8.0.3d9 $quarantine 4 $sandbox 300.0 @kext.!AMatch 1.0.0d1 |CoreAnalytics!F 1 >!ASSE 1.0 >!AKeyStore 2 >!UTDM 511.60.2 |IOUSBMass!SDriver 184.40.6 |IOSCSIBlockCommandsDevice 436.40.6 |IO!S!F 2.1 |IOSCSIArchitectureModel!F 436.40.6 >!AMobileFileIntegrity 1.0.5 @kext.CoreTrust 1 >!AFDEKeyStore 28.30 >!AEffaceable!S 1.0 >!ACredentialManager 1.0 >KernelRelayHost 1 |IOUSBHost!F 1.2 >!UHostMergeProperties 1.2 >usb.!UCommon 1.0 >!ABusPower!C 1.0 >!ASEPManager 1.0.1 >IOSlaveProcessor 1 >!AACPIPlatform 6.1 >!ASMC 3.1.9 |IOPCI!F 2.9 |IOACPI!F 1.4 >watchdog 1 @kec.pthread 1 @kec.corecrypto 11.1 @kec.Libm 1