panic(cpu 2 caller 0xffffff7f9fa50ad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since load (480 seconds ago): 49, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since load (450 seconds ago): 33, last successful checkin: 120 seconds ago

Backtrace (CPU 2), Frame : Return Address
0xffffffa7850c3720 : 0xffffff801e91a65d 
0xffffffa7850c3770 : 0xffffff801ea54a75 
0xffffffa7850c37b0 : 0xffffff801ea465fe 
0xffffffa7850c3800 : 0xffffff801e8c0a40 
0xffffffa7850c3820 : 0xffffff801e919d27 
0xffffffa7850c3920 : 0xffffff801e91a117 
0xffffffa7850c3970 : 0xffffff801f0c1ad8 
0xffffffa7850c39e0 : 0xffffff7f9fa50ad5 
0xffffffa7850c39f0 : 0xffffff7f9fa507fa 
0xffffffa7850c3a10 : 0xffffff801f05397e 
0xffffffa7850c3a60 : 0xffffff7f9fa4fcfe 
0xffffffa7850c3b60 : 0xffffff801f05cba3 
0xffffffa7850c3ca0 : 0xffffff801ea035e2 
0xffffffa7850c3db0 : 0xffffff801e9203c8 
0xffffffa7850c3e10 : 0xffffff801e8f6d15 
0xffffffa7850c3e70 : 0xffffff801e90db22 
0xffffffa7850c3f00 : 0xffffff801ea2c065 
0xffffffa7850c3fa0 : 0xffffff801e8c1226 
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[B6A95892-6C75-3CF5-A6CC-6D83F30FA1D5]@0xffffff7f9fa4f000->0xffffff7f9fa57fff

BSD process name corresponding to current thread: watchdogd

Mac OS version:
19H2

Kernel version:
Darwin Kernel Version 19.6.0: Mon Aug 31 22:12:52 PDT 2020; root:xnu-6153.141.2~1/RELEASE_X86_64
Kernel UUID: 05D51A3D-3A87-3FF0-98C3-9CF3827A3EDD
Kernel slide:     0x000000001e600000
Kernel text base: 0xffffff801e800000
__HIB  text base: 0xffffff801e700000
System model name: iMac18,3 (Mac-BE088AF8C5EB4FA2)
System shutdown begun: NO
Panic diags file available: YES (0x0)

System uptime in nanoseconds: 491816341783
last loaded kext at 15138887948: >AudioAUUC	1.70 (addr 0xffffff7fa28f6000, size 32768)
loaded kexts:
>AudioAUUC	1.70
@fileutil	20.036.15
>AGPM	111.4.4
>!APlatformEnabler	2.7.0d0
>X86PlatformShim	1.0.0
>!AHDAHardwareConfigDriver	283.15
>!AHDA	283.15
@filesystems.autofs	3.0
>!AUpstreamUserClient	3.6.8
@kext.AMDFramebuffer	3.1.0
@kext.AMDRadeonServiceManager	3.1.0
@kext.AMDRadeonX4000	3.1.0
>!AGraphicsDevicePolicy	5.2.6
@AGDCPluginDisplayMetrics	5.2.6
>AGDCBacklightControl	5.2.6
>!ABacklight	180.3
>!A!IKBLGraphics	14.0.7
>!AHV	1
|IOUserEthernet	1.0.1
|IO!BSerialManager	7.0.6f7
>pmtelemetry	1
>!A!IPCHPMC	2.0.1
>!ASMCLMU	212
@Dont_Steal_Mac_OS_X	7.0.0
|Broadcom!B20703USBTransport	7.0.6f7
>ACPI_SMC_PlatformPlugin	1.0.0
>!AMCCSControl	1.14
@kext.AMD9500!C	3.1.0
>eficheck	1
>!A!ISlowAdaptiveClocking	4.0.0
>!AFIVRDriver	4.1.0
>!AThunderboltIP	3.1.4
>!A!IKBLGraphicsFramebuffer	14.0.7
>!AGFXHDA	100.1.429
>!ATopCaseHIDEventDriver	3430.1
|IO!BUSBDFU	7.0.6f7
>!UTopCaseDriver	3430.1
>!AFileSystemDriver	3.0.1
>!AVirtIO	1.0
@filesystems.hfs.kext	522.100.5
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@filesystems.apfs	1412.141.1
>!ASDXC	1.7.7
|!ABCM5701Ethernet	10.3.5
>AirPort.BrcmNIC	1400.1.1
@private.KextAudit	1.0
>!AAHCIPort	341.140.1
>!AACPIButtons	6.1
>!ARTC	2.0
>!ASMBIOS	2.1
>!AACPIEC	6.1
>!AAPIC	1.7
$!AImage4	1
@nke.applicationfirewall	303
$TMSafetyNet	8
@!ASystemPolicy	2.0.0
|EndpointSecurity	1
>DspFuncLib	283.15
@kext.OSvKernDSPLib	529
@kext.triggers	1.0
@kext.AMDRadeonX4200HWLibs	1.0
@kext.AMDRadeonX4000HWServices	3.1.0
>!AGraphicsControl	5.2.6
|IOAVB!F	850.1
>!ABacklightExpert	1.1.0
|Broadcom!BHost!CUSBTransport	7.0.6f7
|IO!BHost!CUSBTransport	7.0.6f7
|IO!BHost!CTransport	7.0.6f7
>IOPlatformPluginLegacy	1.0.0
>X86PlatformPlugin	1.0.0
>IOPlatformPlugin!F	6.0.0d8
>!ASMBus!C	1.0.18d1
@!AGPUWrangler	5.2.6
|IOSlowAdaptiveClocking!F	1.0.0
>!AHDA!C	283.15
|IOHDA!F	283.15
>!AThunderboltEDMSink	4.2.3
>!AThunderboltDPOutAdapter	6.2.6
@kext.AMDSupport	3.1.0
@!AGraphicsDeviceControl	5.2.6
|IOAccelerator!F2	438.7.3
>!ASMBusPCI	1.0.14d1
|IONDRVSupport	576.1
|IOGraphics!F	576.1
@plugin.IOgPTPPlugin	840.3
>!AHS!BDriver	3430.1
>IO!BHIDDriver	7.0.6f7
|IO!B!F	7.0.6f7
|IO!BPacketLogger	7.0.6f7
>!AMultitouchDriver	3440.1
>!AInputDeviceSupport	3440.8
>!AHIDKeyboard	209
>usb.IOUSBHostHIDDevice	1.2
>!UAudio	323.4
>usb.cdc	5.0.0
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
|IOAudio!F	300.2
@vecLib.kext	1.2.0
|IOSerial!F	11
|IOSurface	269.11
@filesystems.hfs.encodings.kext	1
>!AThunderboltDPInAdapter	6.2.6
>!AThunderboltDPAdapter!F	6.2.6
>!AThunderboltPCIDownAdapter	2.5.4
>!AHPM	3.4.4
>!A!ILpssI2C!C	3.0.60
>!A!ILpssDmac	3.0.60
>!AXsanScheme	3
>!AThunderboltNHI	5.8.6
|IOThunderbolt!F	7.6.1
|IONVMe!F	2.1.0
|IOEthernetAVB!C	1.1.0
|IO80211!F	1200.12.2b1
>mDNSOffloadUserClient	1.0.1b8
>corecapture	1.0.4
|IOSkywalk!F	1
>!A!ILpssI2C	3.0.60
>usb.!UHostPacketFilter	1.0
|IOUSB!F	900.4.2
>!A!ILpssGspi	3.0.60
|IOAHCI!F	290.0.1
>usb.!UXHCIPCI	1.2
>usb.!UXHCI	1.2
>!AEFINVRAM	2.1
>!AEFIRuntime	2.1
|IOSMBus!F	1.1
|IOHID!F	2.0.0
$quarantine	4
$sandbox	300.0
@kext.!AMatch	1.0.0d1
>DiskImages	493.0.0
>!AFDEKeyStore	28.30
>!AEffaceable!S	1.0
>!ASSE	1.0
>!AKeyStore	2
>!UTDM	489.120.1
|IOSCSIBlockCommandsDevice	422.120.3
>!ACredentialManager	1.0
>KernelRelayHost	1
>!ASEPManager	1.0.1
>IOSlaveProcessor	1
|IOUSBMass!SDriver	157.140.1
|IOSCSIArchitectureModel!F	422.120.3
|IO!S!F	2.1
|IOUSBHost!F	1.2
>!UHostMergeProperties	1.2
>usb.!UCommon	1.0
>!ABusPower!C	1.0
|CoreAnalytics!F	1
>!AMobileFileIntegrity	1.0.5
@kext.CoreTrust	1
|IOTimeSync!F	840.3
|IONetworking!F	3.4
|IOReport!F	47
>!AACPIPlatform	6.1
>!ASMC	3.1.9
>watchdog	1
|IOPCI!F	2.9
|IOACPI!F	1.4
@kec.pthread	1
@kec.corecrypto	1.0
@kec.Libm	1