panic(cpu 6 caller 0xffffff8013b64a25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds service: com.apple.logd, total successful checkins since load (4710 seconds ago): 472, last successful checkin: 0 seconds ago service: com.apple.WindowServer, total successful checkins since load (4680 seconds ago): 456, last successful checkin: 120 seconds ago service: com.apple.remoted, total successful checkins since load (4710 seconds ago): 470, last successful checkin: 0 seconds ago Backtrace (CPU 6), Frame : Return Address 0xffffffa1b1de3670 : 0xffffff80108bab4d 0xffffffa1b1de36c0 : 0xffffff80109fd7e3 0xffffffa1b1de3700 : 0xffffff80109ede1a 0xffffffa1b1de3750 : 0xffffff801085fa2f 0xffffffa1b1de3770 : 0xffffff80108ba3ed 0xffffffa1b1de3890 : 0xffffff80108ba6d8 0xffffffa1b1de3900 : 0xffffff80110bf004 0xffffffa1b1de3970 : 0xffffff8013b64a25 0xffffffa1b1de3980 : 0xffffff8013b64678 0xffffffa1b1de39a0 : 0xffffff801104628e 0xffffffa1b1de39f0 : 0xffffff8013b63ab4 0xffffffa1b1de3b20 : 0xffffff801105045b 0xffffffa1b1de3c80 : 0xffffff80109a8e51 0xffffffa1b1de3d90 : 0xffffff80108c0147 0xffffffa1b1de3e00 : 0xffffff8010896905 0xffffffa1b1de3e60 : 0xffffff80108ae062 0xffffffa1b1de3ef0 : 0xffffff80109d1fc3 0xffffffa1b1de3fa0 : 0xffffff8010860216 Kernel Extensions in backtrace: com.apple.driver.watchdog(1.0)[2C1307C5-FD71-3802-8D68-A67DB24BCB4A]@0xffffff8013b63000->0xffffff8013b64fff 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: 0x0000000010600000 KernelCache base: 0xffffff8010800000 Kernel slide: 0x0000000010610000 Kernel text base: 0xffffff8010810000 __HIB text base: 0xffffff8010700000 System model name: iMac20,2 (Mac-AF89B6D9451A490B) System shutdown begun: NO Hibernation exit count: 0 System uptime in nanoseconds: 4717903092670 Last Sleep: absolute base_tsc base_nano Uptime : 0x0000044a78f01dc6 Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000 Wake : 0x0000000000000000 0x0000001426f42a24 0x0000000000000000 last started kext at 4604225469933: >usb.!UUserHCI 1 (addr 0xffffff7fb119f000, size 102400) last stopped kext at 4665165954434: >usb.!UUserHCI 1 (addr 0xffffff7fb119f000, size 102400) loaded kexts: >!ATopCaseHIDEventDriver 4030.5 >!AHIDALSService 1 >!APlatformEnabler 2.7.0d0 >AGPM 119 >X86PlatformShim 1.0.0 @filesystems.autofs 3.0 @fileutil 20.036.15 @fsplaceholder 1.14.0 >!AUpstreamUserClient 3.6.8 @kext.AMDRadeonX6000 4.0.2 @kext.AMDRadeonServiceManager 4.0.2 >!AGraphicsDevicePolicy 6.2.2 @AGDCPluginDisplayMetrics 6.2.2 >!A!IKBLGraphics 16.0.1 >pmtelemetry 1 >LuaHardwareAccess 1.0.16 |IOUserEthernet 1.0.1 |IO!BSerialManager 8.0.3d9 @Dont_Steal_Mac_OS_X 7.0.0 >!AHV 1 >!ABridgeAudio!C 100.2 >!ADiskImages2 1 >!A!ICFLGraphicsFramebuffer 16.0.1 >!AThunderboltIP 4.0.3 >BridgeAudioCommunication 100.2 >!AAVEBridge 6.1 >!A!ISlowAdaptiveClocking 4.0.0 >!AGFXHDA 100.1.431 >!AMCCSControl 1.14 >!A!IPCHPMC 2.0.1 >!UCardReader 511.60.2 >BCMWLANFirmware4378.Hashstore 1 >BCMWLANFirmware4377.Hashstore 1 >BCMWLANFirmware4364.Hashstore 1 >BCMWLANFirmware4355.Hashstore 1 @filesystems.tmpfs 1 |!ABCM5701Ethernet 11.0.0 >!ABCMWLANBusInterfacePCIeMac 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 @kext.AMDRadeonX6200HWLibs 1.0 |IO!BHost!CUARTTransport 8.0.3d9 |IO!BHost!CTransport 8.0.3d9 @kext.AMDRadeonX6000Framebuffer 4.0.2 @kext.AMDSupport 4.0.2 >!ASMBusPCI 1.0.14d1 |IOAccelerator!F2 439.52 @plugin.IOgPTPPlugin 900.11 |IOEthernetAVB!C 1.1.0 @!AGPUWrangler 6.2.2 |IOSlowAdaptiveClocking!F 1.0.0 >!A!ILpssUARTv1 3.0.60 >!A!ILpssUARTCommon 3.0.60 >!AOnboardSerial 1.0 |IOAudio!F 300.6.1 @vecLib.kext 1.2.0 >X86PlatformPlugin 1.0.0 >!AGraphicsControl 6.2.2 @kext.AMDRadeonX6000HWServices 4.0.2 @!AGraphicsDeviceControl 6.2.2 |IONDRVSupport 585 |IOGraphics!F 585 >!ASMBus!C 1.0.18d1 >IOPlatformPlugin!F 6.0.0d8 >usb.!UHub 1.2 >usb.cdc.ncm 5.0.0 >usb.cdc 5.0.0 >usb.networking 5.0.0 >usb.!UHostCompositeDevice 1.2 >!AThunderboltPCIDownAdapter 4.1.1 >!AThunderboltDPInAdapter 8.1.4 >!AThunderboltDPAdapter!F 8.1.4 >!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