panic(cpu 2 caller 0xffffff7f98464ad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since load (23630 seconds ago): 2364, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since load (23600 seconds ago): 2348, last successful checkin: 120 seconds ago

Backtrace (CPU 2), Frame : Return Address
0xffffff9246d9b820 : 0xffffff801733bb2b 
0xffffff9246d9b870 : 0xffffff80174734d5 
0xffffff9246d9b8b0 : 0xffffff8017464f4e 
0xffffff9246d9b900 : 0xffffff80172e2a40 
0xffffff9246d9b920 : 0xffffff801733b217 
0xffffff9246d9ba20 : 0xffffff801733b5fb 
0xffffff9246d9ba70 : 0xffffff8017ad2b25 
0xffffff9246d9bae0 : 0xffffff7f98464ad5 
0xffffff9246d9baf0 : 0xffffff7f984647e6 
0xffffff9246d9bb10 : 0xffffff8017a6739b 
0xffffff9246d9bb60 : 0xffffff8017a70443 
0xffffff9246d9bca0 : 0xffffff8017422d12 
0xffffff9246d9bdb0 : 0xffffff80173419d8 
0xffffff9246d9be10 : 0xffffff8017318635 
0xffffff9246d9be70 : 0xffffff801732f0e5 
0xffffff9246d9bf00 : 0xffffff801744b575 
0xffffff9246d9bfa0 : 0xffffff80172e3226 
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[053A5D15-51D4-3E61-978B-EB435FA4BD0A]@0xffffff7f98463000->0xffffff7f9846bfff

BSD process name corresponding to current thread: watchdogd

Mac OS version:
19D76

Kernel version:
Darwin Kernel Version 19.3.0: Thu Jan  9 20:58:23 PST 2020; root:xnu-6153.81.5~1/RELEASE_X86_64
Kernel UUID: A8DDE75C-CD97-3C37-B35D-1070CC50D2CE
Kernel slide:     0x0000000017000000
Kernel text base: 0xffffff8017200000
__HIB  text base: 0xffffff8017100000
System model name: MacPro6,1 (Mac-F60DEB81FF30ACF6)
System shutdown begun: NO
Panic diags file available: YES (0x0)

System uptime in nanoseconds: 23643199654097
last loaded kext at 7326471390476: @filesystems.afpfs	11.2 (addr 0xffffff7f9ba4d000, size 360448)
last unloaded kext at 23596196530260: >usb.cdc	5.0.0 (addr 0xffffff7f9b9a5000, size 28672)
loaded kexts:
com.promise.driver.stex	6.2.13
@filesystems.afpfs	11.2
@nke.asp-tcp	8.1
>!U!SCoexistentDriver	489.80.2
@fileutil	20.036.15
>AudioAUUC	1.70
>!APlatformEnabler	2.7.0d0
>AGPM	111.4.2
>X86PlatformShim	1.0.0
@filesystems.autofs	3.0
>!AUpstreamUserClient	3.6.8
>!AMCCSControl	1.13
@kext.AMDFramebuffer	3.0.5
>!AHDA	283.15
@kext.AMDRadeonX4000	3.0.5
@kext.AMDRadeonServiceManager	3.0.5
>!AGraphicsDevicePolicy	4.7.2
@AGDCPluginDisplayMetrics	4.7.2
>!AHV	1
|IOUserEthernet	1.0.1
|IO!BSerialManager	7.0.3f5
>pmtelemetry	1
@Dont_Steal_Mac_OS_X	7.0.0
>!AThunderboltIP	3.1.3
>!A!IMCEReporter	115
>!AMGPUPowerControl	4.7.2
>eficheck	1
@kext.AMD7000!C	3.0.5
>!ALPC	3.1
>!A!ISlowAdaptiveClocking	4.0.0
|SCSITaskUserClient	422.0.2
>!AVirtIO	1.0
@filesystems.hfs.kext	522.0.9
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@filesystems.apfs	1412.81.1
>AirPort.BrcmNIC	1400.1.1
|!ABCM5701Ethernet	10.3.5
>!AAHCIPort	341.0.2
@private.KextAudit	1.0
>!AACPIButtons	6.1
>!AACPIEC	6.1
>!ARTC	2.0
>!AHPET	1.8
>!ASMBIOS	2.1
>!AAPIC	1.7
>!A!ICPUPowerManagementClient	222.0.0
$!AImage4	1
@nke.applicationfirewall	303
$TMSafetyNet	8
@!ASystemPolicy	2.0.0
>!A!ICPUPowerManagement	222.0.0
|EndpointSecurity	1
$SecureRemotePassword	1.0
|IOUSBMass!SClass	4.0.4
>!AHIDKeyboard	209
@kext.triggers	1.0
>!ASMBus!C	1.0.18d1
>DspFuncLib	283.15
@kext.OSvKernDSPLib	529
@kext.AMDRadeonX4030HWLibs	1.0
|IOAccelerator!F2	438.3.1
@kext.AMDRadeonX4000HWServices	3.0.5
|IOAVB!F	800.17
>!ASSE	1.0
>X86PlatformPlugin	1.0.0
@!AGPUWrangler	4.7.2
>!ABacklightExpert	1.1.0
|IONDRVSupport	569.4
>!AGraphicsControl	4.7.2
@kext.AMDSupport	3.0.5
@!AGraphicsDeviceControl	4.7.2
>IOPlatformPlugin!F	6.0.0d8
|IOSlowAdaptiveClocking!F	1.0.0
>!AHDA!C	283.15
|IOGraphics!F	569.4
|IOHDA!F	283.15
@plugin.IOgPTPPlugin	810.1
|Broadcom!BHost!CUSBTransport	7.0.3f5
|IO!BHost!CUSBTransport	7.0.3f5
|IO!BHost!CTransport	7.0.3f5
|IO!B!F	7.0.3f5
|IO!BPacketLogger	7.0.3f5
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
>!AThunderboltPCIUpAdapter	2.5.4
>!AThunderboltDPOutAdapter	6.2.5
>!AHPM	3.4.4
>!A!ILpssI2C!C	3.0.60
>!A!ILpssDmac	3.0.60
>!A!ILpssI2C	3.0.60
>usb.!UHub	1.2
|IOAudio!F	300.2
@vecLib.kext	1.2.0
|IOSerial!F	11
|IOSurface	269.6
@filesystems.hfs.encodings.kext	1
>!AThunderboltDPInAdapter	6.2.5
>!AThunderboltDPAdapter!F	6.2.5
>!AThunderboltPCIDownAdapter	2.5.4
|IOAHCIBlock!S	316.80.1
|IOSCSIParallel!F	3.0.0
>!AThunderboltNHI	5.8.6
|IOThunderbolt!F	7.6.0
>usb.!UXHCIPCI	1.2
>usb.!UXHCI	1.2
|IO80211!F	1200.12.2b1
>corecapture	1.0.4
|IOSkywalk!F	1
|IOEthernetAVB!C	1.1.0
>mDNSOffloadUserClient	1.0.1b8
|IOAHCI!F	290.0.1
>usb.!UEHCIPCI	1.2
>usb.!UEHCI	1.2
|IOUSB!F	900.4.2
>!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
>!AKeyStore	2
>!UTDM	489.80.2
|IOSCSIBlockCommandsDevice	422.0.2
>!ACredentialManager	1.0
>KernelRelayHost	1
>!ASEPManager	1.0.1
>IOSlaveProcessor	1
|IOUSBMass!SDriver	157.40.7
|IOSCSIArchitectureModel!F	422.0.2
|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	810.1
|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