Big Sur Mac Crash 4 times in the last 6 hours - 2 no-report and 2 reports

App & System Services Core OS
JacksonSox OP
Created Nov ’20
Replies 120
Boosts 2
Views 70k
Participants 115
With the upgrade to Big Sur 11.0.1, my iMac Retina 4K 6-core intel core i7 has become highly unstable. Its crashed 4 times in the last 6 hours. 2 times it crashed with no report. The last 2 times I received a report. The odd thing is one time it crashed when I wasn't even using the computer. This time it crashed with Android studio open, safari open, the app store open, and amazon music playing. Otherwise, I wasn't using the computer.

I used to brag to my friends how stable and secure MacOS was. Not quite sure with this release.

Any suggestions?

panic(cpu 4 caller 0xffffff801dd53a13): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl
service: com.apple.logd, total successful checkins since load (7120 seconds ago): 701, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since load (7090 seconds ago): 709, last successful checkin: 0 seconds ago
Replies  120
Boosts  2
Views  70k
Participants  115
telepati OP
Dec ’20
I have that issue too. I am loosing whole screen no cursor just block white or grey or flashy screen. Force restart from power button than get these watchdog crash reports when boots.

Code Block 
panic(cpu 12 caller 0xffffff801436ea25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since load (1690 seconds ago): 170, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since load (1660 seconds ago): 153, last successful checkin: 120 seconds ago
Backtrace (CPU 12), Frame : Return Address
0xffffffa13941b670 : 0xffffff80110b9aed mach_kernel : _handle_debugger_trap + 0x3dd
0xffffffa13941b6c0 : 0xffffff80111fc6e3 mach_kernel : _kdp_i386_trap + 0x143
0xffffffa13941b700 : 0xffffff80111ecd1a mach_kernel : _kernel_trap + 0x55a
0xffffffa13941b750 : 0xffffff801105ea2f mach_kernel : _return_from_trap + 0xff
0xffffffa13941b770 : 0xffffff80110b938d mach_kernel : _DebuggerTrapWithState + 0xad
0xffffffa13941b890 : 0xffffff80110b9678 mach_kernel : _panic_trap_to_debugger + 0x268
0xffffffa13941b900 : 0xffffff80118be434 mach_kernel : _panic_with_thread_context
0xffffffa13941b970 : 0xffffff801436ea25 com.apple.driver.watchdog : ZN10IOWatchdog14userspacePanicEP8OSObjectPvP25IOExternalMethodArguments.cold.1 + 0x27
0xffffffa13941b980 : 0xffffff801436e678 com.apple.driver.watchdog : ZN10IOWatchdog35userspaceDisableUserspaceMonitoringEP8OSObjectPvP25IOExternalMethodArguments
0xffffffa13941b9a0 : 0xffffff801184569e mach_kernel : ZN12IOUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x1de
0xffffffa13941b9f0 : 0xffffff801436dab4 com.apple.driver.watchdog : ZN20IOWatchdogUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x7c
0xffffffa13941bb20 : 0xffffff801184f86b mach_kernel : _is_io_connect_method + 0x35b
0xffffffa13941bc80 : 0xffffff80111a7d81 mach_kernel : _iokit_server_routine + 0x4d81
0xffffffa13941bd90 : 0xffffff80110bf0e7 mach_kernel : _ipc_kobject_server + 0x337
0xffffffa13941be00 : 0xffffff8011095905 mach_kernel : _ipc_kmsg_send + 0x115
0xffffffa13941be60 : 0xffffff80110ad012 mach_kernel : _mach_msg_overwrite_trap + 0x2d2
0xffffffa13941bef0 : 0xffffff80111d0ec3 mach_kernel : _mach_call_munger64 + 0x273
0xffffffa13941bfa0 : 0xffffff801105f216 mach_kernel : _hndl_mach_scall64 + 0x16
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff801436d000->0xffffff801436efff
Process name corresponding to current thread: watchdogd
Mac OS version:
20C69
Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec  2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASE_X86_64
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x0000000010e00000
KernelCache base:  0xffffff8011000000
Kernel slide:      0x0000000010e10000
Kernel text base:  0xffffff8011010000
__HIB  text base: 0xffffff8010f00000
System model name: iMac19,1 (Mac-AA95B1DDAB278B95)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0
System uptime in nanoseconds: 1715294184881
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x0000018f5f802a27
  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000
  Wake    : 0x0000000000000000 0x0000000e3e075f52 0x0000000000000000


Code Block panic(cpu 6 caller 0xffffff800d96da25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since load (4510 seconds ago): 452, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since load (4480 seconds ago): 436, last successful checkin: 120 seconds ago
Backtrace (CPU 6), Frame : Return Address
0xffffffc1aaa83670 : 0xffffff800a6b9aed mach_kernel : _handle_debugger_trap + 0x3dd
0xffffffc1aaa836c0 : 0xffffff800a7fc6e3 mach_kernel : _kdp_i386_trap + 0x143
0xffffffc1aaa83700 : 0xffffff800a7ecd1a mach_kernel : _kernel_trap + 0x55a
0xffffffc1aaa83750 : 0xffffff800a65ea2f mach_kernel : _return_from_trap + 0xff
0xffffffc1aaa83770 : 0xffffff800a6b938d mach_kernel : _DebuggerTrapWithState + 0xad
0xffffffc1aaa83890 : 0xffffff800a6b9678 mach_kernel : _panic_trap_to_debugger + 0x268
0xffffffc1aaa83900 : 0xffffff800aebe434 mach_kernel : _panic_with_thread_context
0xffffffc1aaa83970 : 0xffffff800d96da25 com.apple.driver.watchdog : ZN10IOWatchdog14userspacePanicEP8OSObjectPvP25IOExternalMethodArguments.cold.1 + 0x27
0xffffffc1aaa83980 : 0xffffff800d96d678 com.apple.driver.watchdog : ZN10IOWatchdog35userspaceDisableUserspaceMonitoringEP8OSObjectPvP25IOExternalMethodArguments
0xffffffc1aaa839a0 : 0xffffff800ae4569e mach_kernel : ZN12IOUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x1de
0xffffffc1aaa839f0 : 0xffffff800d96cab4 com.apple.driver.watchdog : ZN20IOWatchdogUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x7c
0xffffffc1aaa83b20 : 0xffffff800ae4f86b mach_kernel : _is_io_connect_method + 0x35b
0xffffffc1aaa83c80 : 0xffffff800a7a7d81 mach_kernel : _iokit_server_routine + 0x4d81
0xffffffc1aaa83d90 : 0xffffff800a6bf0e7 mach_kernel : _ipc_kobject_server + 0x337
0xffffffc1aaa83e00 : 0xffffff800a695905 mach_kernel : _ipc_kmsg_send + 0x115
0xffffffc1aaa83e60 : 0xffffff800a6ad012 mach_kernel : _mach_msg_overwrite_trap + 0x2d2
0xffffffc1aaa83ef0 : 0xffffff800a7d0ec3 mach_kernel : _mach_call_munger64 + 0x273
0xffffffc1aaa83fa0 : 0xffffff800a65f216 mach_kernel : _hndl_mach_scall64 + 0x16
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[C1A64FD7-AD16-37E0-8FA1-A78A8E91D9FF]@0xffffff800d96c000->0xffffff800d96dfff
Process name corresponding to current thread: watchdogd
Mac OS version:
20C5061b
Kernel version:
Darwin Kernel Version 20.2.0: Mon Nov 23 05:24:51 PST 2020; root:xnu-7195.60.74~7/RELEASE_X86_64
Kernel UUID: 1DCC1F01-821E-36A7-BAED-6B8548ECD80E
KernelCache slide: 0x000000000a400000
KernelCache base:  0xffffff800a600000
Kernel slide:      0x000000000a410000
Kernel text base:  0xffffff800a610000
__HIB  text base: 0xffffff800a500000
System model name: iMac19,1 (Mac-AA95B1DDAB278B95)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0
System uptime in nanoseconds: 4528658183420
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x0000041e690ff91d
  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000
  Wake    : 0x0000000000000000 0x0000000b389bb8ee 0x0000000000000000


0
cschu OP
Dec ’20
I'm running Big Sur 11.1 and I have the same issue as well. I recently reinstalled the OS (not a clean install but just the OS via Repair Mode), thinking that would fix it. But just crashed again.

panic(cpu 6 caller 0xffffff800356ea25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since wake (230 seconds ago): 24, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (230 seconds ago): 12, last successful checkin: 120 seconds ago
service: com.apple.remoted, total successful checkins since wake (230 seconds ago): 24, last successful checkin: 0 seconds ago

Backtrace (CPU 6), Frame : Return Address
0xffffffc1b5803670 : 0xffffff80002b9aed
0xffffffc1b58036c0 : 0xffffff80003fc6e3
0xffffffc1b5803700 : 0xffffff80003ecd1a
0xffffffc1b5803750 : 0xffffff800025ea2f
0xffffffc1b5803770 : 0xffffff80002b938d
0xffffffc1b5803890 : 0xffffff80002b9678
0xffffffc1b5803900 : 0xffffff8000abe434
0xffffffc1b5803970 : 0xffffff800356ea25
0xffffffc1b5803980 : 0xffffff800356e678
0xffffffc1b58039a0 : 0xffffff8000a4569e
0xffffffc1b58039f0 : 0xffffff800356dab4
0xffffffc1b5803b20 : 0xffffff8000a4f86b
0xffffffc1b5803c80 : 0xffffff80003a7d81
0xffffffc1b5803d90 : 0xffffff80002bf0e7
0xffffffc1b5803e00 : 0xffffff8000295905
0xffffffc1b5803e60 : 0xffffff80002ad012
0xffffffc1b5803ef0 : 0xffffff80003d0ec3
0xffffffc1b5803fa0 : 0xffffff800025f216
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff800356d000->0xffffff800356efff

Process name corresponding to current thread: watchdogd

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x0000000000000000
KernelCache base: 0xffffff8000200000
Kernel slide: 0x0000000000010000
Kernel text base: 0xffffff8000210000
_HIB text base: 0xffffff8000100000
System model name: MacBookPro16,1 (Mac-E1008331FDC96864)
System shutdown begun: NO
Hibernation exit count: 0

System uptime in nanoseconds: 81981128554344
Last Sleep: absolute basetsc base_nano
Uptime : 0x00004a8fb80bbe85
Sleep : 0x00004a55349ec591 0x0000ea6c988b12ee 0x00004a438e959df2
Wake : 0x00004a5566b87356 0x0000eb9f18f1f5e6 0x00004a5545fc5f8e
last started kext at 81351112184338: >Core!SFsck 554 (addr 0xffffff8001b67000, size 86016)
last stopped kext at 81933720304216: @filesystems.exfat 1.4 (addr 0xffffff7fa13c1000, size 53248)
loaded kexts:
com.softraid.driver.SoftRAID 6.0.1b43
com.Cycling74.driver.Soundflower 2

!APlatformEnabler 2.7.0d0
AGPM 119
X86PlatformShim 1.0.0
@filesystems.autofs 3.0
@fileutil 20.036.15
@fsplaceholder 1.13.2
!ATopCaseHIDEventDriver 4020.6
!AHIDALSService 1
@kext.AMDRadeonServiceManager 4.0.2
AudioAUUC 1.70
@kext.AMDRadeonX6000 4.0.2
!AGraphicsDevicePolicy 6.2.2
@AGDCPluginDisplayMetrics 6.2.2
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
|IO!BSerialManager 8.0.2f9
@DontStealMacOSX 7.0.0
!AHV 1
!ADiskImages2 1
!AUpstreamUserClient 3.6.8
!AGFXHDA 100.1.431
AGDCBacklightControl 6.2.2
!A!IPCHPMC 2.0.1
!AThunderboltIP 4.0.3
!AMuxControl2 6.2.2
!A!IKBLGraphics 16.0.1
BridgeAudioCommunication 100.2
!AAVEBridge 6.1
!AMCCSControl 1.14
!A!ICFLGraphicsFramebuffer 16.0.1
!ABridgeAudio!C 100.2
!A!ISlowAdaptiveClocking 4.0.0
BCMWLANFirmware4378.Hashstore 1
BCMWLANFirmware4377.Hashstore 1
BCMWLANFirmware4364.Hashstore 1
BCMWLANFirmware4355.Hashstore 1
!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 1677.60.23
!A!II210Ethernet 2.3.1
@private.KextAudit 1.0
!ASmartBatteryManager 161.0.0
!AACPIButtons 6.1
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 310
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
@kext.triggers 1.0
!AActuatorDriver 4400.28
!AHIDKeyboard 222
!AMultitouchDriver 4400.28
!AInputDeviceSupport 4400.35
!AHS!BDriver 4020.6
IO!BHIDDriver 8.0.2f9
|IOAVB!F 900.12
@!AGPUWrangler 6.2.2
@kext.AMDRadeonX6100HWLibs 1.0
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!UAudio 401.4
@plugin.IOgPTPPlugin 900.11
!AGraphicsControl 6.2.2
@kext.AMDRadeonX6000Framebuffer 4.0.2
@kext.AMDSupport 4.0.2
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!ABacklightExpert 1.1.0
!ASMBus!C 1.0.18d1
|IONDRVSupport 585
|IOAccelerator!F2 439.52
@!AGraphicsDeviceControl 6.2.2
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
|IOGraphics!F 585
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@vecLib.kext 1.2.0
!A!ILpssUARTv1 3.0.60
!A!ILpssUARTCommon 3.0.60
!AOnboardSerial 1.0
|IOSlowAdaptiveClocking!F 1.0.0
Core!S 554
usb.cdc.ncm 5.0.0
!AThunderboltPCIUpAdapter 4.1.1
!AThunderboltDPOutAdapter 8.1.4
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
!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
@filesystems.hfs.encodings.kext 1
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
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
|IOEthernetAVB!C 1.1.0
mDNSOffloadUserClient 1.0.1b8
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
|IOUSB!F 900.4.2
!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 8.0.2f9
|IOReport!F 47
|IO!BPacketLogger 8.0.2f9
$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

0
sanj_rana OP
Dec ’20
When using Adobe lightroom i get the same issue; error message below, followed by the system hanging, eventually restarting
rather annoying and only started happening after big sur 11.1 update

Panic(cpu 2 caller 0xffffff800ed6ea25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since wake (2320 seconds ago): 233, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (2320 seconds ago): 216, last successful checkin: 120 seconds ago

Backtrace (CPU 2), Frame : Return Address
0xffffffa10cb9b670 : 0xffffff800bab9aed 
0xffffffa10cb9b6c0 : 0xffffff800bbfc6e3 
0xffffffa10cb9b700 : 0xffffff800bbecd1a 
0xffffffa10cb9b750 : 0xffffff800ba5ea2f 
0xffffffa10cb9b770 : 0xffffff800bab938d 
0xffffffa10cb9b890 : 0xffffff800bab9678 
0xffffffa10cb9b900 : 0xffffff800c2be434 
0xffffffa10cb9b970 : 0xffffff800ed6ea25 
0xffffffa10cb9b980 : 0xffffff800ed6e678 
0xffffffa10cb9b9a0 : 0xffffff800c24569e 
0xffffffa10cb9b9f0 : 0xffffff800ed6dab4 
0xffffffa10cb9bb20 : 0xffffff800c24f86b 
0xffffffa10cb9bc80 : 0xffffff800bba7d81 
0xffffffa10cb9bd90 : 0xffffff800babf0e7 
0xffffffa10cb9be00 : 0xffffff800ba95905 
0xffffffa10cb9be60 : 0xffffff800baad012 
0xffffffa10cb9bef0 : 0xffffff800bbd0ec3 
0xffffffa10cb9bfa0 : 0xffffff800ba5f216 
   Kernel Extensions in backtrace:
     com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff800ed6d000->0xffffff800ed6efff

Process name corresponding to current thread: watchdogd

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x000000000b800000
KernelCache base: 0xffffff800ba00000
Kernel slide:   0x000000000b810000
Kernel text base: 0xffffff800ba10000
_HIB text base: 0xffffff800b900000
System model name: iMac17,1 (Mac-65CE76090165799A)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 13648183060394
Last Sleep:     absolute     basetsc     base_nano
 Uptime : 0x00000c69b71a6a6e
 Sleep : 0x00000a4a79dd0e5a 0x0000000076f5956c 0x00000a37867b5029
 Wake  : 0x00000a4a816e709e 0x0000000076bd1a41 0x00000a4a8065fe16
last started kext at 130345394341: @filesystems.smbfs 3.4.1 (addr 0xffffff7facc63000, size 434176)
last stopped kext at 13576342113183: >!A!ILpssGspi 3.0.60 (addr 0xffffff800cf29000, size 32768)
loaded kexts:
com.radiosilenceapp.nke.filter 2.2
com.paragon-software.filesystems.ntfs 106.5.15
org.pqrs.driver.Karabiner.VirtualHIDDevice.v040800 4.8.0
@filesystems.smbfs 3.4.1
@filesystems.exfat 1.4

AudioAUUC 1.70
@fileutil 20.036.15
@filesystems.autofs 3.0
!APlatformEnabler 2.7.0d0
AGPM 119
X86PlatformShim 1.0.0
!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.2
@kext.AMDRadeonX4000 4.0.2
!AMikeyHIDDriver 131
@kext.AMDRadeonServiceManager 4.0.2
!AGraphicsDevicePolicy 6.2.2
@AGDCPluginDisplayMetrics 6.2.2
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
usb.!UUserHCI 1
|IO!BSerialManager 8.0.2f9
@DontStealMacOSX 7.0.0
!AHDA 283.15
eficheck 1
!AHV 1
!ADiskImages2 1
!AThunderboltIP 4.0.3
!AMikeyDriver 283.15
!A!IPCHPMC 2.0.1
!A!ISKLGraphics 16.0.1
!A!ISlowAdaptiveClocking 4.0.0
!A!ISKLGraphicsFramebuffer 16.0.1
@kext.AMD8000!C 4.0.2
!ASMCLMU 212
|Broadcom!B20703USBTransport 8.0.2f9
!AMCCSControl 1.14
!ATopCaseHIDEventDriver 4020.6
|SCSITaskUserClient 436.40.6
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@filesystems.apfs 1677.60.23
|!ABCM5701Ethernet 11.0.0
!ASDXC 1.9.0
AirPort.BrcmNIC 1400.1.1
!AAHCIPort 346
@private.KextAudit 1.0
!AACPIButtons 6.1
!ARTC 2.0
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 310
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
|IOAVB!F 900.12
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
@kext.triggers 1.0
@kext.AMDRadeonX4050HWLibs 1.0
@kext.AMDRadeonX4000HWServices 4.0.2
!AGraphicsControl 6.2.2
|IOSerial!F 11
DspFuncLib 283.15
@kext.OSvKernDSPLib 529
!AThunderboltEDMSink 5.0.3
@!AGPUWrangler 6.2.2
|IOSlowAdaptiveClocking!F 1.0.0
|IOAccelerator!F2 439.52
@kext.AMDSupport 4.0.2
@!AGraphicsDeviceControl 6.2.2
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
!ASMBusPCI 1.0.14d1
!AHDA!C 283.15
|IOHDA!F 283.15
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
|Broadcom!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CTransport 8.0.2f9
|IONDRVSupport 585
|IOGraphics!F 585
!ASMBus!C 1.0.18d1
!AHS!BDriver 4020.6
IO!BHIDDriver 8.0.2f9
!AMultitouchDriver 4400.28
!AInputDeviceSupport 4400.35
!AHIDKeyboard 222
usb.!UHub 1.2
usb.networking 5.0.0
usb.!UHostCompositeDevice 1.2
!AThunderboltDPOutAdapter 8.1.4
!AThunderboltDPInAdapter 8.1.4
!AThunderboltDPAdapter!F 8.1.4
!AThunderboltPCIDownAdapter 4.1.1
!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
|IOAHCIBlock!S 332
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
|IO80211!F 1200.12.2b1
|IOSkywalk!F 1
mDNSOffloadUserClient 1.0.1b8
corecapture 1.0.4
|IOAHCI!F 294
usb.!UHostPacketFilter 1.0
|IOUSB!F 900.4.2
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
!AEFINVRAM 2.1
!AEFIRuntime 2.1
|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 8.0.2f9
|IOReport!F 47
|IO!BPacketLogger 8.0.2f9
$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


0
MaxNyby OP
Jan ’21
It seems I have the exact same problem. Everything, including the cursor, freezes on a daily basis, waits for a couple of minutes, and the I get the Apple equivalent of BSOD.

I send the crash report to apple regularly, but they don't get back in touch, so I thought I would just share my version of the same crash report here.

I am very willing to try and uninstall anything that might be the causing the issue, but so far nothing has worked, and I suspect it is an error in the OS. It never happened before in the years I have had my mac, but started with the "upgrade" to Big Sur.

Code Block 
panic(cpu 1 caller 0xffffff800ad6ea25): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl 
service: com.apple.logd, total successful checkins since wake (4340 seconds ago): 423, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (4340 seconds ago): 423, last successful checkin: 120 seconds ago
Backtrace (CPU 1), Frame : Return Address
0xffffffb07fea3670 : 0xffffff8007ab9aed 
0xffffffb07fea36c0 : 0xffffff8007bfc6e3 
0xffffffb07fea3700 : 0xffffff8007becd1a 
0xffffffb07fea3750 : 0xffffff8007a5ea2f 
0xffffffb07fea3770 : 0xffffff8007ab938d 
0xffffffb07fea3890 : 0xffffff8007ab9678 
0xffffffb07fea3900 : 0xffffff80082be434 
0xffffffb07fea3970 : 0xffffff800ad6ea25 
0xffffffb07fea3980 : 0xffffff800ad6e678 
0xffffffb07fea39a0 : 0xffffff800824569e 
0xffffffb07fea39f0 : 0xffffff800ad6dab4 
0xffffffb07fea3b20 : 0xffffff800824f86b 
0xffffffb07fea3c80 : 0xffffff8007ba7d81 
0xffffffb07fea3d90 : 0xffffff8007abf0e7 
0xffffffb07fea3e00 : 0xffffff8007a95905 
0xffffffb07fea3e60 : 0xffffff8007aad012 
0xffffffb07fea3ef0 : 0xffffff8007bd0ec3 
0xffffffb07fea3fa0 : 0xffffff8007a5f216 
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff800ad6d000->0xffffff800ad6efff
Process name corresponding to current thread: watchdogd
Mac OS version:
20C69
Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec  2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASE_X86_64
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x0000000007800000
KernelCache base:  0xffffff8007a00000
Kernel slide:      0x0000000007810000
Kernel text base:  0xffffff8007a10000
__HIB  text base: 0xffffff8007900000
System model name: iMac15,1 (Mac-42FD25EABCABB274)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0
System uptime in nanoseconds: 24183096429255
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x000015fe90df4d29
  Sleep   : 0x000012096edd9837 0x0000000044a88ce6 0x00000fddaaac4b4b
  Wake    : 0x0000120975d8aa22 0x00000000448a8499 0x00001209753c5c57
last started kext at 24103388303726: >usb.!UUserHCI	1 (addr 0xffffff7fa839d000, size 98304)
last stopped kext at 23988620653007: >!AXsanScheme	3 (addr 0xffffff8009266000, size 12288)
loaded kexts:
>usb.!UUserHCI	1
@filesystems.afpfs	11.3
@nke.asp_tcp	8.2
>AGPM	119
>!APlatformEnabler	2.7.0d0
>X86PlatformShim	1.0.0
@fileutil	20.036.15
>AudioAUUC	1.70
@filesystems.autofs	3.0
>!AUpstreamUserClient	3.6.8
@kext.AMDFramebuffer	4.0.2
@kext.AMDRadeonServiceManager	4.0.2
>!AMikeyHIDDriver	131
@kext.AMDRadeonX4000	4.0.2
>!AHDA	283.15
>!AMikeyDriver	283.15
>!AGraphicsDevicePolicy	6.2.2
@AGDCPluginDisplayMetrics	6.2.2
>eficheck	1
>pmtelemetry	1
>LuaHardwareAccess	1.0.16
@kext.AMD7000!C	4.0.2
|IOUserEthernet	1.0.1
>!A!IHD5000Graphics	16.0.1
|IO!BSerialManager	8.0.2f9
>!ALPC	3.1
@Dont_Steal_Mac_OS_X	7.0.0
>!AHV	1
>!ADiskImages2	1
>!AMCCSControl	1.14
>!ASMCLMU	212
>!A!ISlowAdaptiveClocking	4.0.0
>!A!IFramebufferAzul	16.0.1
>!AThunderboltIP	4.0.3
>!ATopCaseHIDEventDriver	4020.6
>!UTopCaseDriver	4020.6
@filesystems.tmpfs	1
@filesystems.hfs.kext	556.60.1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
@filesystems.apfs	1677.60.23
@private.KextAudit	1.0
>AirPort.BrcmNIC	1400.1.1
>!ASDXC	1.9.0
|!ABCM5701Ethernet	11.0.0
>!AAHCIPort	346
>!ARTC	2.0
>!AACPIButtons	6.1
>!AHPET	1.8
>!ASMBIOS	2.1
>!AACPIEC	6.1
>!AAPIC	1.7
@!ASystemPolicy	2.0.0
@nke.applicationfirewall	310
|IOKitRegistryCompatibility	1
|EndpointSecurity	1
$SecureRemotePassword	1.0
@plugin.IOAVBDiscoveryPlugin	900.12
@kext.triggers	1.0
@kext.AMDRadeonX4030HWLibs	1.0
@kext.AMDRadeonX4000HWServices	4.0.2
>DspFuncLib	283.15
@kext.OSvKernDSPLib	529
>!AGraphicsControl	6.2.2
@kext.AMDSupport	4.0.2
|IOSerial!F	11
|IOAVB!F	900.12
@plugin.IOgPTPPlugin	900.11
|IOEthernetAVB!C	1.1.0
|IONDRVSupport	585
>!ASMBus!C	1.0.18d1
>X86PlatformPlugin	1.0.0
>IOPlatformPlugin!F	6.0.0d8
@!AGPUWrangler	6.2.2
|IOSlowAdaptiveClocking!F	1.0.0
>!ASMBusPCI	1.0.14d1
>!AHDA!C	283.15
|IOHDA!F	283.15
>!UAudio	401.4
|IOAudio!F	300.6.1
@vecLib.kext	1.2.0
|IOAccelerator!F2	439.52
@!AGraphicsDeviceControl	6.2.2
|IOGraphics!F	585
>!AThunderboltEDMSink	5.0.3
|Broadcom!BHost!CUSBTransport	8.0.2f9
|IO!BHost!CUSBTransport	8.0.2f9
|IO!BHost!CTransport	8.0.2f9
>!AHS!BDriver	4020.6
>IO!BHIDDriver	8.0.2f9
>usb.IOUSBHostHIDDevice	1.2
>!AMultitouchDriver	4400.28
>!AInputDeviceSupport	4400.35
>!AHIDKeyboard	222
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
>usb.!UHub	1.2
>!AThunderboltDPOutAdapter	8.1.4
>!AThunderboltDPInAdapter	8.1.4
>!AThunderboltDPAdapter!F	8.1.4
>!AThunderboltPCIDownAdapter	4.1.1
>!ABSDKextStarter	3
|IOSurface	289.3
@filesystems.hfs.encodings.kext	1
|IOAHCIBlock!S	332
>!AThunderboltNHI	7.2.8
|IOThunderbolt!F	9.3.2
|IOUSB!F	900.4.2
|IO80211!F	1200.12.2b1
|IOSkywalk!F	1
>corecapture	1.0.4
>mDNSOffloadUserClient	1.0.1b8
|IOAHCI!F	294
>usb.!UXHCIPCI	1.2
>usb.!UXHCI	1.2
>!AEFINVRAM	2.1
>!AEFIRuntime	2.1
|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	8.0.2f9
|IOReport!F	47
|IO!BPacketLogger	8.0.2f9
$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

0
NFLD3S OP
Jan ’21
Same here, iMac (Retina 5K, 27-inch, 2017), 3,8 GHz Quad-Core Intel Core i5, 24 GB 2400 MHz DDR4, Fusion Drive.

This started on Catalina for me and continuous on Big Sur. Freezes up and panics after few minutes. Happens when in Safari (I have tons of tabs), but also when dragging & dropping in the finder, and even during the night when the computer sleeps.

I did a clean Big Sur install, not by choice but my HDD part of the Fusion Drive happened to die recently. I thought the panics were related to that but new HDD drive and fresh Big Sur install (with migration assistant from backup for files & settings but fresh apps) and the problem persists and possibly even worse. Anyone else has a fusion drive? I noticed in DriveDX that the SSD part of the drive is also aging to 20% of lifetime. And since everyone seems to be on similar hardware I'm wondering if it has to do with Fusion Drive.

```panic(cpu 3 caller 0xffffff802176e9be): watchdog timeout: no checkins from watchdogd in 95 seconds (13677 total checkins since monitoring last enabled)
Backtrace (CPU 3), Frame : Return Address
0xffffffa0ab623c00 : 0xffffff801e4b9aed
0xffffffa0ab623c50 : 0xffffff801e5fc6e3
0xffffffa0ab623c90 : 0xffffff801e5ecd1a
0xffffffa0ab623ce0 : 0xffffff801e45ea2f
0xffffffa0ab623d00 : 0xffffff801e4b938d
0xffffffa0ab623e20 : 0xffffff801e4b9678
0xffffffa0ab623e90 : 0xffffff801ecbe434
0xffffffa0ab623f00 : 0xffffff802176e9be
0xffffffa0ab623f20 : 0xffffff802176e2f9
0xffffffa0ab623f50 : 0xffffff801faa39dc
0xffffffa0ab623fa0 : 0xffffff801e45e13e
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff802176d000->0xffffff802176efff
com.apple.driver.AppleSMC(3.1.9)[D674490B-26E7-312B-9E8E-03250124CCC6]@0xffffff801fa94000->0xffffff801faacfff
dependency: com.apple.driver.watchdog(1)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff802176d000->0xffffff802176efff
dependency: com.apple.iokit.IOACPIFamily(1.4)[C8F0E837-965A-3EB4-B8F6-4C2142046028]@0xffffff80208d7000->0xffffff80208d8fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[D0F1BFB8-C28E-3E70-891B-73B783189394]@0xffffff8020e2c000->0xffffff8020e53fff

Process name corresponding to current thread: kerneltask

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x000000001e200000
KernelCache base: 0xffffff801e400000
Kernel slide: 0x000000001e210000
Kernel text base: 0xffffff801e410000
HIB text base: 0xffffff801e300000
System model name: iMac18,3 (Mac-BE088AF8C5EB4FA2)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 166942206505421
Last Sleep: absolute basetsc base_nano
Uptime : 0x000097d542eabc83
Sleep : 0x00001b5a8998e30a 0x00000000adf7f15a 0x000000994ad0705e
Wake : 0x00001b5a8e4bc41b 0x00000000adc3d0fc 0x00001b5a8d18d73b
last started kext at 122921511405004: >!AXsanScheme 3 (addr 0xffffff801fc66000, size 12288)
last stopped kext at 166840457518321: >usb.!UUserHCI 1 (addr 0xffffff7fbed9d000, size 98304)
loaded kexts:
@filesystems.smbfs 3.4.1
@filesystems.msdosfs 1.10

!ATopCaseHIDEventDriver 4020.6
AudioAUUC 1.70
X86PlatformShim 1.0.0
AGPM 119
!APlatformEnabler 2.7.0d0
@fsplaceholder 1.13.2
@fileutil 20.036.15
@filesystems.autofs 3.0
!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.2
!AHDA 283.15
@kext.AMDRadeonX4000 4.0.2
@kext.AMDRadeonServiceManager 4.0.2
!AThunderboltIP 4.0.3
!A!IPCHPMC 2.0.1
!A!IKBLGraphics 16.0.1
!AGraphicsDevicePolicy 6.2.2
!AGFXHDA 100.1.431
eficheck 1
!AMCCSControl 1.14
@AGDCPluginDisplayMetrics 6.2.2
!ASMCLMU 212
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
|IO!BSerialManager 8.0.2f9
@DontStealMacOSX 7.0.0
!AHV 1
!ADiskImages2 1
|Broadcom!B20703USBTransport 8.0.2f9
!A!IKBLGraphicsFramebuffer 16.0.1
!A!ISlowAdaptiveClocking 4.0.0
@kext.AMD9500!C 4.0.2
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@filesystems.apfs 1677.60.23
!ASDXC 1.9.0
|!ABCM5701Ethernet 11.0.0
AirPort.BrcmNIC 1400.1.1
!AAHCIPort 346
@private.KextAudit 1.0
!AACPIButtons 6.1
!ARTC 2.0
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 310
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
@plugin.IOAVBDiscoveryPlugin 900.12
usb.cdc.ncm 5.0.0
usb.cdc 5.0.0
!AHIDKeyboard 222
!AMultitouchDriver 4400.28
!AInputDeviceSupport 4400.35
!AHS!BDriver 4020.6
IO!BHIDDriver 8.0.2f9
@kext.triggers 1.0
DspFuncLib 283.15
@kext.OSvKernDSPLib 529
@kext.AMDRadeonX4200HWLibs 1.0
@kext.AMDRadeonX4000HWServices 4.0.2
!ASMBusPCI 1.0.14d1
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
!AGraphicsControl 6.2.2
!AHDA!C 283.15
|IOHDA!F 283.15
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
|IONDRVSupport 585
!ASMBus!C 1.0.18d1
|IOSerial!F 11
|IOAVB!F 900.12
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
|Broadcom!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CTransport 8.0.2f9
|IOAccelerator!F2 439.52
@!AGPUWrangler 6.2.2
|IOSlowAdaptiveClocking!F 1.0.0
@kext.AMDSupport 4.0.2
@!AGraphicsDeviceControl 6.2.2
|IOGraphics!F 585
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!ILpssDmac 3.0.60
!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
|IOAHCIBlock!S 332
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
|IO80211!F 1200.12.2b1
|IOSkywalk!F 1
mDNSOffloadUserClient 1.0.1b8
corecapture 1.0.4
|IONVMe!F 2.1.0
!A!ILpssI2C 3.0.60
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
|IOAHCI!F 294
|IOUSB!F 900.4.2
!AEFINVRAM 2.1
!AEFIRuntime 2.1
|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 8.0.2f9
|IOReport!F 47
|IO!BPacketLogger 8.0.2f9
$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

```

1
mrvco OP
Jan ’21
Same here on what is/was a clean Big Sur install. I've lost count now of how many times this has happened. I wake my 2018 Mac Mini from sleep and once again I'm logging in and it's reopened applications and I'm seeing another crash report. I was hoping 11.1 would fix this issue, but nope. I've been on Mac as my primary OS since 2007 and have never seen anything like this w/ any Mac release. I can't remember the last time my Win10 machine hard crashed.
0
Lars_T_1 OP
Jan ’21
I´ve had the same issues that this thread has for a couple of months now, and have tapped AppleCare several times; their recommendations match those steps several have taken in the below discussion.

On my (high-spec) iMac Pro 2017 I believe I have isolated the source of the problem: my two external Dell 5k monitors (Thunderbolt/USB-C). That tallies up well with other forum comments elsewhere.

The issue arose post Catalina and has continued with Big Sur (currently Big Sur 11.1).

The kernel panic crash happens either when I put the iMac to sleep without first turning off the two external monitors. Furthermore, the whole OS freezes (cursor and all) occasionally when stepping away from the computer - completely unresponsive.

These issues do not occur when the two external monitors are turned off.

Apple - please review and correct your OS...
1
MacandPCRepairs OP
Jan ’21
Had the same issue with a 2017 iMac Pro, random restarts running Big Sur 11.1 same crash logs as everyone else on this thread. Thought it might be related to running two extra monitors off the iMac, however I can't understand why it was fine for weeks and then started to crash for last couple of days. Whilst I don't have good news relating to some software fix, I can report that I successfully wiped the drive, fresh installed Catalina and the best news, was able to restore my Big Sur backup from earlier today. This downgrade was not possible to do previous to Big Sur. So either Apple foresaw the need to allow restoring a time machine backup to an earlier Mac OS due to the newness of Big Sur or I've had some miracle performed and should buy a lotto ticket before my luck runs out.

So just keep in mind there may be a downgrade path for you using Time Machine and this definitely was not possible to perform with the last few releases of Mac OS.

Hope that helps.

0
MiguelMacedo OP
Jan ’21
The same issue on 2015 macbook air.

Crash 2 to 4 times a day. I reinstalled Big Sur remains the same. Big Sur disappointment ....
0
puschelpete OP
Jan ’21
Same issue here. I have done tons of trouble shooting over the past few weeks and am very certain it is connected to external hard drives. On Catalina the issue even resulted in catastrophic crashes that rebooted in Internet Recovery mode to reinstall everything and wipe the drive.

I have two external drives connected. One is APFS one is Journaled.

It happens on two different machines for me when having the same hard drives connected. No external drives, no problem. Would love to see this fixed.

Here's my crash report from the non fatal crashes:

panic(cpu 2 caller 0xffffff8021f6ea25): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl 
service: com.apple.logd, total successful checkins since load (27250 seconds ago): 2714, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since load (27220 seconds ago): 2722, last successful checkin: 0 seconds ago
Backtrace (CPU 2), Frame : Return Address
0xffffffb0cb923670 : 0xffffff801ecb9aed 
0xffffffb0cb9236c0 : 0xffffff801edfc6e3 
0xffffffb0cb923700 : 0xffffff801edecd1a 
0xffffffb0cb923750 : 0xffffff801ec5ea2f 
0xffffffb0cb923770 : 0xffffff801ecb938d 
0xffffffb0cb923890 : 0xffffff801ecb9678 
0xffffffb0cb923900 : 0xffffff801f4be434 
0xffffffb0cb923970 : 0xffffff8021f6ea25 
0xffffffb0cb923980 : 0xffffff8021f6e678 
0xffffffb0cb9239a0 : 0xffffff801f44569e 
0xffffffb0cb9239f0 : 0xffffff8021f6dab4 
0xffffffb0cb923b20 : 0xffffff801f44f86b 
0xffffffb0cb923c80 : 0xffffff801eda7d81 
0xffffffb0cb923d90 : 0xffffff801ecbf0e7 
0xffffffb0cb923e00 : 0xffffff801ec95905 
0xffffffb0cb923e60 : 0xffffff801ecad012 
0xffffffb0cb923ef0 : 0xffffff801edd0ec3 
0xffffffb0cb923fa0 : 0xffffff801ec5f216 
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff8021f6d000->0xffffff8021f6efff
Process name corresponding to current thread: watchdogd
Mac OS version:
20C69
Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec  2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x000000001ea00000
KernelCache base:  0xffffff801ec00000
Kernel slide:      0x000000001ea10000
Kernel text base:  0xffffff801ec10000
_HIB  text base: 0xffffff801eb00000
System model name: iMac17,1 (Mac-B809C3757DA9BB8D)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0
System uptime in nanoseconds: 27255352600028
Last Sleep:           absolute           basetsc          basenano
  Uptime  : 0x000018c9e19c287b
  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000
  Wake    : 0x0000000000000000 0x00000016dd24ed82 0x0000000000000000
last started kext at 4162244807412: >usb.!UUserHCI 1 (addr 0xffffff7fbf59d000, size 98304)
last stopped kext at 26683584986979: >usb.!UUserHCI 1 (addr 0xffffff7fbf59d000, size 98304)
loaded kexts:
!ATopCaseHIDEventDriver 4020.6
AudioAUUC 1.70
@fsplaceholder 1.13.2
@filesystems.autofs 3.0
@fileutil 20.036.15
AGPM 119
!APlatformEnabler 2.7.0d0
X86PlatformShim 1.0.0
!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.2
!AMikeyHIDDriver 131
@kext.AMDRadeonX4000 4.0.2
@kext.AMDRadeonServiceManager 4.0.2
!AMikeyDriver 283.15
!A!ISKLGraphics 16.0.1
!AGraphicsDevicePolicy 6.2.2
!AHDA 283.15
!A!IPCHPMC 2.0.1
!ASMCLMU 212
@AGDCPluginDisplayMetrics 6.2.2
!A!ISKLGraphicsFramebuffer 16.0.1
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
|IO!BSerialManager 8.0.2f9
@DontStealMacOS_X 7.0.0
!AHV 1
!ADiskImages2 1
!A!ISlowAdaptiveClocking 4.0.0
|Broadcom!B20703USBTransport 8.0.2f9
!AMCCSControl 1.14
@kext.AMD9000!C 4.0.2
eficheck 1
!AThunderboltIP 4.0.3
|SCSITaskUserClient 436.40.6
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@filesystems.apfs 1677.60.23
|!ABCM5701Ethernet 11.0.0
!ASDXC 1.9.0
AirPort.BrcmNIC 1400.1.1
!AAHCIPort 346
@private.KextAudit 1.0
!AACPIButtons 6.1
!ARTC 2.0
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 310
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
!AHIDKeyboard 222
!AMultitouchDriver 4400.28
!AInputDeviceSupport 4400.35
!AHS!BDriver 4020.6
IO!BHIDDriver 8.0.2f9
@kext.triggers 1.0
@kext.AMDRadeonX4070HWLibs 1.0
@kext.AMDRadeonX4000HWServices 4.0.2
!AGraphicsControl 6.2.2
DspFuncLib 283.15
@kext.OSvKernDSPLib 529
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
|IOAccelerator!F2 439.52
|IOSerial!F 11
|IOAVB!F 900.12
!ASMBusPCI 1.0.14d1
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
@!AGPUWrangler 6.2.2
|IOSlowAdaptiveClocking!F 1.0.0
!AHDA!C 283.15
|IOHDA!F 283.15
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
|Broadcom!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CTransport 8.0.2f9
|IONDRVSupport 585
!ASMBus!C 1.0.18d1
@kext.AMDSupport 4.0.2
@!AGraphicsDeviceControl 6.2.2
|IOGraphics!F 585
!AThunderboltEDMSink 5.0.3
usb.networking 5.0.0
usb.!UHostCompositeDevice 1.2
!AThunderboltDPOutAdapter 8.1.4
!AThunderboltDPInAdapter 8.1.4
!AThunderboltDPAdapter!F 8.1.4
!AThunderboltPCIDownAdapter 4.1.1
!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
|IOAHCIBlock!S 332
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
|IO80211!F 1200.12.2b1
|IOSkywalk!F 1
mDNSOffloadUserClient 1.0.1b8
corecapture 1.0.4
|IOAHCI!F 294
|IOUSB!F 900.4.2
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
!AEFINVRAM 2.1
!AEFIRuntime 2.1
|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 8.0.2f9
|IOReport!F 47
|IO!BPacketLogger 8.0.2f9
$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

0
trx9911 OP
Jan ’21
My Macbook crashes every time with the same problem. At least it is predictable, when I unplug HDMI cable from my external monitor, my MacBook Pro (13-inch, 2017) with Big Sur macOS 11.1 (20C69) simply freezes with a panic report which I can only read after reboot: userspace watchdog timeout: no successful checkins from com.apple.WindowServer

Here is the full report, Big Sur is like Windows 95 - there is no one out there for help



panic(cpu 2 caller 0xffffff802236ea25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since wake (25381 seconds ago): 2539, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (25381 seconds ago): 2527, last successful checkin: 120 seconds ago

Backtrace (CPU 2), Frame : Return Address
0xffffffb0cf85b670 : 0xffffff801f0b9aed
0xffffffb0cf85b6c0 : 0xffffff801f1fc6e3
0xffffffb0cf85b700 : 0xffffff801f1ecd1a
0xffffffb0cf85b750 : 0xffffff801f05ea2f
0xffffffb0cf85b770 : 0xffffff801f0b938d
0xffffffb0cf85b890 : 0xffffff801f0b9678
0xffffffb0cf85b900 : 0xffffff801f8be434
0xffffffb0cf85b970 : 0xffffff802236ea25
0xffffffb0cf85b980 : 0xffffff802236e678
0xffffffb0cf85b9a0 : 0xffffff801f84569e
0xffffffb0cf85b9f0 : 0xffffff802236dab4
0xffffffb0cf85bb20 : 0xffffff801f84f86b
0xffffffb0cf85bc80 : 0xffffff801f1a7d81
0xffffffb0cf85bd90 : 0xffffff801f0bf0e7
0xffffffb0cf85be00 : 0xffffff801f095905
0xffffffb0cf85be60 : 0xffffff801f0ad012
0xffffffb0cf85bef0 : 0xffffff801f1d0ec3
0xffffffb0cf85bfa0 : 0xffffff801f05f216
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff802236d000->0xffffff802236efff

Process name corresponding to current thread: watchdogd

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x000000001ee00000
KernelCache base: 0xffffff801f000000
Kernel slide: 0x000000001ee10000
Kernel text base: 0xffffff801f010000
_HIB text base: 0xffffff801ef00000
System model name: MacBookPro14,2 (Mac-CAD6701F7CEA0921)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 34

System uptime in nanoseconds: 77717204288036
Last Sleep: absolute basetsc base_nano
Uptime : 0x000046aef25ac534
Sleep : 0x00002f9876430afa 0x00000001c1774955 0x00002f97589872c0
Wake : 0x00002f98980c7868 0x00000001c1aa631a 0x00002f9881301b66
last started kext at 77669072473364: >usb.!UUserHCI 1 (addr 0xffffff7fbf99d000, size 98304)
last stopped kext at 77651505386089: >!UAudio 401.4 (addr 0xffffff7fbf50f000, size 307200)
loaded kexts:

usb.!UUserHCI 1
@macos.driver.!UEthernetHost 8.1.1
@filesystems.smbfs 3.4.1
AudioAUUC 1.70
@filesystems.autofs 3.0
!APlatformEnabler 2.7.0d0
AGPM 119
X86PlatformShim 1.0.0
!AHIDALSService 1
@fileutil 20.036.15
!AGraphicsDevicePolicy 6.2.2
@AGDCPluginDisplayMetrics 6.2.2
!AUpstreamUserClient 3.6.8
pmtelemetry 1
!AHDA 283.15
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
|IO!BSerialManager 8.0.2f9
!A!IKBLGraphics 16.0.1
@DontStealMacOSX 7.0.0
!AHV 1
!ADiskImages2 1
!A!IPCHPMC 2.0.1
!ABacklight 180.3
!AMCCSControl 1.14
!AThunderboltIP 4.0.3
eficheck 1
!AEmbeddedOSSupportHost 1
!A!IKBLGraphicsFramebuffer 16.0.1
!A!ISlowAdaptiveClocking 4.0.0
@filesystems.apfs 1677.60.23
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
!ATopCaseHIDEventDriver 4020.6
AirPort.BrcmNIC 1400.1.1
@private.KextAudit 1.0
!ASmartBatteryManager 161.0.0
!AACPIButtons 6.1
!ARTC 2.0
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 310
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
@kext.triggers 1.0
!AGraphicsControl 6.2.2
DspFuncLib 283.15
@kext.OSvKernDSPLib 529
|IOAVB!F 900.12
|IO!BHost!CUARTTransport 8.0.2f9
|IO!BHost!CTransport 8.0.2f9
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
!AHDA!C 283.15
|IOHDA!F 283.15
@!AGPUWrangler 6.2.2
!ABacklightExpert 1.1.0
!ASMBus!C 1.0.18d1
|IONDRVSupport 585
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
!A!ILpssUARTv1 3.0.60
!A!ILpssUARTCommon 3.0.60
!AOnboardSerial 1.0
|IOSerial!F 11
|IOAccelerator!F2 439.52
@!AGraphicsDeviceControl 6.2.2
|IOGraphics!F 585
|IOSlowAdaptiveClocking!F 1.0.0
usb.cdc.ncm 5.0.0
usb.!UiBridge 1.0
usb.cdc 5.0.0
usb.networking 5.0.0
usb.!UHostCompositeDevice 1.2
usb.!UHub 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
!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
!AActuatorDriver 4400.28
!AHIDKeyboard 222
!AMultitouchDriver 4400.28
!AInputDeviceSupport 4400.35
!AHS!BDriver 4020.6
IO!BHIDDriver 8.0.2f9
!AHSSPIHIDDriver 61
!AHSSPISupport 61
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
|IO80211!F 1200.12.2b1
|IOSkywalk!F 1
mDNSOffloadUserClient 1.0.1b8
corecapture 1.0.4
!A!ILpssSpi!C 3.0.60
!A!ILpssDmac 3.0.60
|IONVMe!F 2.1.0
!A!ILpssI2C 3.0.60
!A!ILpssGspi 3.0.60
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
|IOUSB!F 900.4.2
!AEFINVRAM 2.1
!AEFIRuntime 2.1
|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 8.0.2f9
|IOReport!F 47
|IO!BPacketLogger 8.0.2f9
$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



0
ultra-prod OP
Jan ’21
Same problem, each day crash, on iMac (Retina 5K, 27 pouces, fin 2015) on Big Sur 11.1 (20C69) :

panic(cpu 2 caller 0xffffff800e56ea25): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl
service: com.apple.logd, total successful checkins since load (103421 seconds ago): 10331, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since load (103301 seconds ago): 10321, last successful checkin: 90 seconds ago

Backtrace (CPU 2), Frame : Return Address
0xffffffb0b4b53670 : 0xffffff800b2b9aed
0xffffffb0b4b536c0 : 0xffffff800b3fc6e3
0xffffffb0b4b53700 : 0xffffff800b3ecd1a
0xffffffb0b4b53750 : 0xffffff800b25ea2f
0xffffffb0b4b53770 : 0xffffff800b2b938d
0xffffffb0b4b53890 : 0xffffff800b2b9678
0xffffffb0b4b53900 : 0xffffff800****434
0xffffffb0b4b53970 : 0xffffff800e56ea25
0xffffffb0b4b53980 : 0xffffff800e56e678
0xffffffb0b4b539a0 : 0xffffff800ba4569e
0xffffffb0b4b539f0 : 0xffffff800e56dab4
0xffffffb0b4b53b20 : 0xffffff800ba4f86b
0xffffffb0b4b53c80 : 0xffffff800b3a7d81
0xffffffb0b4b53d90 : 0xffffff800b2bf0e7
0xffffffb0b4b53e00 : 0xffffff800b295905
0xffffffb0b4b53e60 : 0xffffff800b2ad012
0xffffffb0b4b53ef0 : 0xffffff800b3d0ec3
0xffffffb0b4b53fa0 : 0xffffff800b25f216
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff800e56d000->0xffffff800e56efff

Process name corresponding to current thread: watchdogd

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x000000000b000000
KernelCache base: 0xffffff800b200000
Kernel slide: 0x000000000b010000
Kernel text base: 0xffffff800b210000
_HIB text base: 0xffffff800b100000
System model name: iMac17,1 (Mac-B809C3757DA9BB8D)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 103447162405293
Last Sleep: absolute basetsc basenano
Uptime : 0x00005e15ab5e4455
Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000
Wake : 0x0000000000000000 0x0000000c8a986a17 0x0000000000000000
last started kext at 80803992767372: >Core!SFsck 554 (addr 0xffffff800cb67000, size 86016)
last stopped kext at 103147296967353: >usb.!UHostPacketFilter 1.0 (addr 0xffffff800e05b000, size 8192)
loaded kexts:
com.Cycling74.driver.Soundflower 2
com.AmbrosiaSW.AudioSupport 4.1.4
@filesystems.afpfs 11.3
@nke.asptcp 8.2
@filesystems.exfat 1.4

AGPM 119
!APlatformEnabler 2.7.0d0
X86PlatformShim 1.0.0
@filesystems.smbfs 3.4.1
OxfordSemi 511.60.2
@filesystems.autofs 3.0
!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.2
@fileutil 20.036.15
@kext.AMDRadeonServiceManager 4.0.2
AudioAUUC 1.70
!AMikeyHIDDriver 131
@kext.AMDRadeonX4000 4.0.2
!AGraphicsDevicePolicy 6.2.2
@AGDCPluginDisplayMetrics 6.2.2
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
!AHDA 283.15
!AMikeyDriver 283.15
|IO!BSerialManager 8.0.2f9
!A!IPCHPMC 2.0.1
@DontStealMacOS_X 7.0.0
!AHV 1
!ADiskImages2 1
!A!ISKLGraphics 16.0.1
!A!ISlowAdaptiveClocking 4.0.0
|Broadcom!B20703USBTransport 8.0.2f9
!ASMCLMU 212
eficheck 1
!AMCCSControl 1.14
!AThunderboltIP 4.0.3
@kext.AMD9000!C 4.0.2
!AFWOHCI 5.7.4
!A!ISKLGraphicsFramebuffer 16.0.1
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@filesystems.apfs 1677.60.23
|!ABCM5701Ethernet 11.0.0
!ASDXC 1.9.0
AirPort.BrcmNIC 1400.1.1
!AAHCIPort 346
@private.KextAudit 1.0
!AACPIButtons 6.1
!ARTC 2.0
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 310
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
Core!S 554
$SecureRemotePassword 1.0
|IOFireWireSerialBusProtocolTransport 2.5.1
|IOFireWireSBP2 4.4.2
!AHIDKeyboard 222
@kext.triggers 1.0
@kext.AMDRadeonX4070HWLibs 1.0
@kext.AMDRadeonX4000HWServices 4.0.2
!AGraphicsControl 6.2.2
DspFuncLib 283.15
@kext.OSvKernDSPLib 529
|IOSerial!F 11
@!AGPUWrangler 6.2.2
|IOSlowAdaptiveClocking!F 1.0.0
|Broadcom!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CUSBTransport 8.0.2f9
|IO!BHost!CTransport 8.0.2f9
!AHDA!C 283.15
|IOHDA!F 283.15
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
|IOAVB!F 900.12
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
|IONDRVSupport 585
!ASMBusPCI 1.0.14d1
!ASMBus!C 1.0.18d1
!AThunderboltEDMSink 5.0.3
@kext.AMDSupport 4.0.2
@plugin.IOAVBDiscoveryPlugin 900.12
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
|IOFireWire!F 4.8.3
|IOAccelerator!F2 439.52
@!AGraphicsDeviceControl 6.2.2
|IOGraphics!F 585
usb.networking 5.0.0
usb.!UHostCompositeDevice 1.2
usb.!UHub 1.2
!AThunderboltDPInAdapter 8.1.4
!AThunderboltPCIUpAdapter 4.1.1
!AThunderboltDPOutAdapter 8.1.4
!AThunderboltDPAdapter!F 8.1.4
!AThunderboltPCIDownAdapter 4.1.1
!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
|IOAHCIBlock!S 332
|IO80211!F 1200.12.2b1
|IOSkywalk!F 1
mDNSOffloadUserClient 1.0.1b8
corecapture 1.0.4
|IOAHCI!F 294
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
|IOUSB!F 900.4.2
!AEFINVRAM 2.1
!AEFIRuntime 2.1
|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 8.0.2f9
|IOReport!F 47
|IO!BPacketLogger 8.0.2f9
$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

0
mrseo OP
Jan ’21
Same here

Reinstalled big sur, same problem but I don't use external monitors, nor time machine. I'm on a new version of big sur.


panic(cpu 4 caller 0xffffff801136ea25): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl
service: com.apple.logd, total successful checkins since load (64910 seconds ago): 6480, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since load (64880 seconds ago): 6477, last successful checkin: 110 seconds ago

0
buzybonnie OP
Jan ’21
I have been having this problem since upgrading to Big Sur. Currently on 11.1. Crashing at least 1-2x a day and even in the middle of the night when the computer is on, but not even being used.

Other forums I have looked at recommended a reinstall if the other suggestions they had didn't work. I did a total reinstall about 10 days ago including wiping the entire disc and it has not resolved anything. System:

iMac (Retina 5K, 27-inch, Late 2014)
Processor: 3.5 GHz Quad-Core Intel Core i5
Memory: 16 GB 1600 MHz DDR3
Graphics: AMD Radeon R9 M290X 2 GB

I am using no external monitors and no external drives. I do use Dropbox and all data/content on my computer, except for programs, goes into dropbox on my harddrive and synced online. I have noticed that my selective sync and being able to show the options for getting a dropbox link in the Finder are acting pretty wonky - oftentimes not there.

I use imessage a ton and am noticing issues with being able to text/send to android phones. I have double and triple checked settings (I have used this feature for years.). One thing I did notice yesterday while trying to find some photos on a shared icloud folder is that when I go to icloud on my imac, it seems to want to connect my imac's user password to icloud, rather than my icloud password. I couldn't access the shared photos folder on safari or chrome. If I logged into the photos on my iphone, the files were all there.

I'm wondering if there is some sort of issue with username/identity as even two-factor authentication is messed up, not sending to my apple watch or imessages but it is sending to my older laptop.

Here's my report. Any ideas welcome. Error is always related to "watchdog". This is getting old and I'm losing a lot of work as well as my patience.

________________________

panic(cpu 1 caller 0xffffff801cf6ea25): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl
service: com.apple.logd, total successful checkins since wake (52970 seconds ago): 5286, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (52970 seconds ago): 5287, last successful checkin: 110 seconds ago

Backtrace (CPU 1), Frame : Return Address
0xffffffb0bb75b670 : 0xffffff8019cb9aed
0xffffffb0bb75b6c0 : 0xffffff8019dfc6e3
0xffffffb0bb75b700 : 0xffffff8019decd1a
0xffffffb0bb75b750 : 0xffffff8019c5ea2f
0xffffffb0bb75b770 : 0xffffff8019cb938d
0xffffffb0bb75b890 : 0xffffff8019cb9678
0xffffffb0bb75b900 : 0xffffff801a4be434
0xffffffb0bb75b970 : 0xffffff801cf6ea25
0xffffffb0bb75b980 : 0xffffff801cf6e678
0xffffffb0bb75b9a0 : 0xffffff801a44569e
0xffffffb0bb75b9f0 : 0xffffff801cf6dab4
0xffffffb0bb75bb20 : 0xffffff801a44f86b
0xffffffb0bb75bc80 : 0xffffff8019da7d81
0xffffffb0bb75bd90 : 0xffffff8019cbf0e7
0xffffffb0bb75be00 : 0xffffff8019c95905
0xffffffb0bb75be60 : 0xffffff8019cad012
0xffffffb0bb75bef0 : 0xffffff8019dd0ec3
0xffffffb0bb75bfa0 : 0xffffff8019c5f216
   Kernel Extensions in backtrace:
     com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff801cf6d000->0xffffff801cf6efff

Process name corresponding to current thread: watchdogd

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASEX8664
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x0000000019a00000
KernelCache base: 0xffffff8019c00000
Kernel slide:   0x0000000019a10000
Kernel text base: 0xffffff8019c10000
HIB text base: 0xffffff8019b00000
System model name: iMac15,1 (Mac-42FD25EABCABB274)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 202712377676289
Last Sleep:     absolute     basetsc     base_nano
 Uptime : 0x0000b85da743544c
 Sleep : 0x0000882d7d8c2b4b 0x0000000044cb7e31 0x0000881f179e1c33
 Wake  : 0x0000882d84991dcc 0x00000000449cf97f 0x0000882d83f1be56
last started kext at 198780834543464: >usb.!UUserHCI 1 (addr 0xffffff7fba59d000, size 98304)
last stopped kext at 198866529322531: >usb.!UUserHCI 1 (addr 0xffffff7fba59d000, size 98304)
loaded kexts:

!A!BMultitouch 99
AudioAUUC 1.70
!APlatformEnabler 2.7.0d0
AGPM 119
X86PlatformShim 1.0.0
@fsplaceholder 1.13.2
@fileutil 20.036.15
!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.2
@filesystems.autofs 3.0
@kext.AMDRadeonX4000 4.0.2
@kext.AMDRadeonServiceManager 4.0.2
!AMikeyHIDDriver 131
!AGraphicsDevicePolicy 6.2.2
!AMikeyDriver 283.15
@AGDCPluginDisplayMetrics 6.2.2
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
!AHDA 283.15
|IO!BSerialManager 8.0.2f9
@DontStealMacOSX 7.0.0
!AHV 1
!A!IHD5000Graphics 16.0.1
!ASMCLMU 212
!ADiskImages2 1
!AMCCSControl 1.14
!A!ISlowAdaptiveClocking 4.0.0
!A!IFramebufferAzul 16.0.1
eficheck 1
@kext.AMD7000!C 4.0.2
!AThunderboltIP 4.0.3
!ALPC 3.1
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40

0
cjamesrun OP
Feb ’21
So I am going to try and remove two items that were appearing in the my bug report. SoundFlowersigned.kext, and the fuse drive from virtual box kext as well. VirtualBox is also installed in the Android simulator Bluestacks. l had both installed, and the kext were always appearing at the top of the bug report. Another forum, had mentioned the sound flower (which was left over from a very old app for sound editing), so I am getting rid of that. -- fingers crossed.
0
Big Sur Mac Crash 4 times in the last 6 hours - 2 no-report and 2 reports
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