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

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

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 : 0xffffff800babe434
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

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

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

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.

Having exactly the same problem with iMac (Retina 5K, 27-inch, 2017), 3.8 GHz Quad-Core Intel Core i5

I don't have much to add on previous replies, crash log looks the same, so I won't clutter the message with them;
the only additional thing that I noticed is that it almost always happen when I am not actively working on my Mac (my iMac never sleeps, I have lots of processes running in the background, e.g. from the shell working with remote connected servers; but it is set to lock itself and put the display to sleep. I can actively work on the device, then put the screen to sleep, and an hour after the computer is shut down -- it's not even in the login page, it basically shut down as if someone pushed the power button, and I have to turn it on with the power button, login, etc. The only evidence that this is due to a kernel panic is the aforementioned crash report that I get when I am finally logged in.

Any comments and/or advice will be highly appreciated.

I have exactly the same issue.
For my iMac (Retina 5K, 27-inch, 2017) 3,5 GHz Intel Core i5 quadricore / On Big Sur : 11.2

My iMac crash especially during the night when I'm not using it.
Each day I come back to my office, I notice my iMac has reboot.

I hope to see soon a solution by Apple.

Same problem after Big Sur installation with iMac (Retina 5K, 27-inch, 2019), few BSODs in a last week...

userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds
panic(cpu 2 caller 0xffffff8013f6ea25): 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 (3900 seconds ago): 379, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (3900 seconds ago): 380, last successful checkin: 110 seconds ago

... & so on

panic(cpu 6 caller 0xffffff800b964a25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

Same here crashes when left alone. I have a monitor attached with thunderbolt 2. Very annoying and I see no fixes here yet.

yep, same where. iMac 27 late 2015

Very annoying. Restarts usually when I'm not using it. Same error

panic(cpu 1 caller 0xffffff800656ea25): userspace watchdog timeout: no successful checkins

Interestingly enough - I am having the same problem with Big Sur. But I also had it on High Sierra since December or so.

It only seems to happen when I have external monitors connected. On High Sierra, changing from HDMI connection to Display Port connection solved the problem. But I upgraded to Big Sur the other day and now it is happening with both.

Model Name: iMac
 Model Identifier: iMac19,1
 Processor Name: 8-Core Intel Core i9
 Processor Speed: 3.6 GHz
 Number of Processors: 1
 Total Number of Cores: 8
 L2 Cache (per Core): 256 KB
 L3 Cache: 16 MB
 Hyper-Threading Technology: Enabled
 Memory: 64 GB
 System Firmware Version: 1554.80.3.0.0
 SMC Version (system): 2.46f13

Same here as well. Has happened about 3 times in the last 24 hours - always when I'm away from and not using my computer

Big Sur 11.2.1
iMac (Retina 5K, 27-inch, 2017)
Processor: 3.4 GHz Quad-Core Intel Core i5
Memory: 8 GB 2400 MHz DDR4

panic(cpu 1 caller 0xffffff800dd64a25): 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.drain-mem
service: com.apple.logd, total successful checkins since load (50620 seconds ago): 5051, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since load (50560 seconds ago): 5056, last successful checkin: 0 seconds ago

I'm with the same problem. I've erased my SSD, reformat it and re-installed the Big Sur. Apparently it was solved, but no.
I downgraded my Mac OS to Sierra, and everything worked fine. Than, I've installed Big Sur again, and the problem remains. I don't think that it is related to the hardware. Considering the number of people facing the same, a fix should be released ASAP.

panic(cpu 2 caller 0xffffff800bfee1e6): Kernel trap at 0xffffff800eb7f03f, type 14=page fault, registers:

Just wanted to add that I am having the same issue. I have it over night and while I am working on it. I am working on a premier pro project. I have been trying to export it and just as it gets to 99%, it crashes. I have had the issue doing other things as well, so I do not think it is isolated to Adobe, but it's possible that I had acrobat open or creative cloud was doing something in the background. I do have a second monitor, so I am going to unplug it and see if that solves anything - at least long enough to get this video exported.

Same problem:

• iMac Pro (2017)

• happens when I go away, screensaver kicks in or when I activate the screensaver (with password lock) by moving my mouse to a hot-edge

• 2 external monitors (left, right) via USB-C/Thunderbolt to HDMI connectors

• 1 NAS via Thunderbolt connected

Same problem here, iMac 27” 2020, 8GB of RAM.

I’ve added the RAM information because I’m starting to think that it could be an out of memory problem, it happens when I’m using Android Studio with either iOS or Android simulators.
It happens ONLY when I have an external monitor plugged via USB-C to HDMI, never happened with external monitors connected via AirPlay or iPad with sidecar or USB-C.
It happened both with Catalina and Big Sur.
It seems completely random and it’s becoming unusable. Those PCs cost almost 3000$, it’s absolutely unacceptable

I have the same issue and I noticed this issue happens when switching between GPU. if settings "Automatic Graphic switch" on when screen saver shows or HDMI plugged computer switches to the Radeon GPU and it freezes. Issue is fixed when I switched "Automatic Graphic switch" off and now computer always uses Radeon as GPU. This is not ideal and permanent solution if you are using the laptop on battery but seems like apple doesnt pay attention to this issue so trying to make ways around it


The details of my error

panic(cpu 2 caller 0xffffff800b764a25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since load (340 seconds ago): 35, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since load (310 seconds ago): 19, last successful checkin: 120 seconds ago

Backtrace (CPU 2), Frame : Return Address
0xffffffa078fcb670 : 0xffffff80084bab4d 
0xffffffa078fcb6c0 : 0xffffff80085fd7e3 
0xffffffa078fcb700 : 0xffffff80085ede1a 
0xffffffa078fcb750 : 0xffffff800845fa2f 
0xffffffa078fcb770 : 0xffffff80084ba3ed 
0xffffffa078fcb890 : 0xffffff80084ba6d8 
0xffffffa078fcb900 : 0xffffff8008cbf004 
0xffffffa078fcb970 : 0xffffff800b764a25 
0xffffffa078fcb980 : 0xffffff800b764678 
0xffffffa078fcb9a0 : 0xffffff8008c4628e 
0xffffffa078fcb9f0 : 0xffffff800b763ab4 
0xffffffa078fcbb20 : 0xffffff8008c5045b 
0xffffffa078fcbc80 : 0xffffff80085a8e51 
0xffffffa078fcbd90 : 0xffffff80084c0147 
0xffffffa078fcbe00 : 0xffffff8008496905 
0xffffffa078fcbe60 : 0xffffff80084ae062 
0xffffffa078fcbef0 : 0xffffff80085d1fc3 
0xffffffa078fcbfa0 : 0xffffff8008460216 
   Kernel Extensions in backtrace:
     com.apple.driver.watchdog(1.0)[2C1307C5-FD71-3802-8D68-A67DB24BCB4A]@0xffffff800b763000->0xffffff800b764fff

Process name corresponding to current thread: watchdogd

Mac OS version:
20D74

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: 0x0000000008200000
KernelCache base: 0xffffff8008400000
Kernel slide:   0x0000000008210000
Kernel text base: 0xffffff8008410000
__HIB text base: 0xffffff8008300000
System model name: MacBookPro14,3 (Mac-551B86E5744E2388)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 344371549277
Last Sleep:      absolute      base_tsc     base_nano
 Uptime : 0x000000502e24dbde
 Sleep  : 0x0000000000000000 0x0000000000000000 0x0000000000000000
 Wake  : 0x0000000000000000 0x000000034f31f4e9 0x0000000000000000
last started kext at 80263704241: @filesystems.msdosfs 1.10 (addr 0xffffff7fa95dd000, size 57344)
last stopped kext at 280925303378: >usb.!UHostPacketFilter 1.0 (addr 0xffffff800b24f000, size 8192)
loaded kexts:
org.virtualbox.kext.VBoxNetAdp 6.1.18
org.virtualbox.kext.VBoxNetFlt 6.1.18
org.virtualbox.kext.VBoxUSB 6.1.18
org.virtualbox.kext.VBoxDrv 6.1.18

AudioAUUC 1.70
!APlatformEnabler 2.7.0d0
AGPM 119
X86PlatformShim 1.0.0
@fileutil 20.036.15
@filesystems.autofs 3.0
!AHIDALSService 1
@kext.AMDFramebuffer 4.0.2
@kext.AMDRadeonX4000 4.0.2
!AUpstreamUserClient 3.6.8
@kext.AMDRadeonServiceManager 4.0.2
AGDCBacklightControl 6.2.2
!A!IKBLGraphics 16.0.1
!AGraphicsDevicePolicy 6.2.2
@AGDCPluginDisplayMetrics 6.2.2
!AHDA 283.15
pmtelemetry 1
LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
|IO!BSerialManager 8.0.3d9
!A!IKBLGraphicsFramebuffer 16.0.1
eficheck 1
!AMuxControl 6.2.2
@Dont_Steal_Mac_OS_X 7.0.0
!AHV 1
!ADiskImages2 1
!AMCCSControl 1.14
!AThunderboltIP 4.0.3
!AEmbeddedOSSupportHost 1
!A!IPCHPMC 2.0.1
SMCMotionSensor 3.0.4d1
!A!ISlowAdaptiveClocking 4.0.0
!AGFXHDA 100.1.431
@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
!ATopCaseHIDEventDriver 4030.5
AirPort.BrcmNIC 1400.1.1
@filesystems.apfs 1677.81.1
@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
|IOUSBUserClient 900.4.2
@kext.triggers 1.0
usb.cdc.ncm 5.0.0
usb.!UiBridge 1.0
usb.cdc 5.0.0
usb.networking 5.0.0
usb.!UHostCompositeDevice 1.2
@kext.AMDRadeonX4100HWLibs 1.0
@kext.AMDRadeonX4000HWServices 4.0.2
|IO!BHost!CUARTTransport 8.0.3d9
|IO!BHost!CTransport 8.0.3d9
!ABacklightExpert 1.1.0
DspFuncLib 283.15
@kext.OSvKernDSPLib 529
|IOAccelerator!F2 439.52
!AGraphicsControl 6.2.2
|IOAVB!F 930.1
!ASMBus!C 1.0.18d1
!A!ILpssUARTv1 3.0.60
!A!ILpssUARTCommon 3.0.60
!AOnboardSerial 1.0
|IOSerial!F 11
@!AGPUWrangler 6.2.2
|IOSlowAdaptiveClocking!F 1.0.0
|IONDRVSupport 585
!AHDA!C 283.15
|IOHDA!F 283.15
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
X86PlatformPlugin 1.0.0
IOPlatformPlugin!F 6.0.0d8
@kext.AMDSupport 4.0.2
@!AGraphicsDeviceControl 6.2.2
|IOGraphics!F 585
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
!AThunderboltPCIDownAdapter 4.1.1
!AThunderboltDPInAdapter 8.1.4
!AThunderboltDPAdapter!F 8.1.4
!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
!AActuatorDriver 4400.28
!AHIDKeyboard 223
!AMultitouchDriver 4400.28
!AInputDeviceSupport 4400.35
!AHS!BDriver 4030.5
IO!BHIDDriver 8.0.3d9
!AHSSPIHIDDriver 61
!AHSSPISupport 61
|IO80211!F 1200.12.2b1
|IOSkywalk!F 1
mDNSOffloadUserClient 1.0.1b8
corecapture 1.0.4
!A!ILpssSpi!C 3.0.60
|IONVMe!F 2.1.0
!AThunderboltNHI 7.2.8
!AHPM 3.4.4
|IOThunderbolt!F 9.3.2
!A!ILpssI2C!C 3.0.60
!A!ILpssDmac 3.0.60
!A!ILpssI2C 3.0.60
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
!A!ILpssGspi 3.0.60
|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 8.0.3d9
|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

Been crashing for months now.... Apple Please fix this Thanks!!!!

Panic(cpu 2 caller 0xffffff8021b6ea25): 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 (505108 seconds ago): 50499, last successful checkin: 120 seconds ago service: com.apple.WindowServer, total successful checkins since load (505018 seconds ago): 50501, last successful checkin: 0 seconds ago

Facing the same issue in Big Sur 11.2.3.

panic(cpu 6 caller 0xffffff8020964a25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since wake (4690 seconds ago): 470, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (4690 seconds ago): 458, last successful checkin: 120 seconds ago
service: com.apple.remoted, total successful checkins since wake (4690 seconds ago): 470, last successful checkin: 0 seconds ago

I am having the same problem since upgrading to big sur. The same issues as outlined above. I have no external hard drives or monitors attached. Adobe creative cloud and software is unusable at the moment with constant crashing - the computer will often just turn off completely. When I use photoshop every time I take an action the image interface flickers which I have never seen before in all my years of using it. The computer is shutting down when Im not using, it doesn't wake up when I touch the mouse, it has a slow start - up and on the login page the keyboard is slower, the mouse freezes for a minute or so and the little icon on the log in page has become pixelated. All of this since the upgrade and all issues started at the same time. Ive had some crash reports and Ive sent the reports but like others I don't always get a report to send. Please help apple

Mac Spec is: iMac (Retina 5K, 27-inch, Late 2015) i5


this is the latest crash report I got a few minutes ago is


panic(cpu 3 caller 0xffffff801a164a25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

service: com.apple.logd, total successful checkins since wake (1290 seconds ago): 130, last successful checkin: 0 seconds ago

service: com.apple.WindowServer, total successful checkins since wake (1290 seconds ago): 118, last successful checkin: 120 seconds ago



Backtrace (CPU 3), Frame : Return Address

0xffffffb099613670 : 0xffffff8016ebab4d 

0xffffffb0996136c0 : 0xffffff8016ffd7e3 

0xffffffb099613700 : 0xffffff8016fede1a 

0xffffffb099613750 : 0xffffff8016e5fa2f 

0xffffffb099613770 : 0xffffff8016eba3ed 

0xffffffb099613890 : 0xffffff8016eba6d8 

0xffffffb099613900 : 0xffffff80176bf004 

0xffffffb099613970 : 0xffffff801a164a25 

0xffffffb099613980 : 0xffffff801a164678 

0xffffffb0996139a0 : 0xffffff801764628e 

0xffffffb0996139f0 : 0xffffff801a163ab4 

0xffffffb099613b20 : 0xffffff801765045b 

0xffffffb099613c80 : 0xffffff8016fa8e51 

0xffffffb099613d90 : 0xffffff8016ec0147 

0xffffffb099613e00 : 0xffffff8016e96905 

0xffffffb099613e60 : 0xffffff8016eae062 

0xffffffb099613ef0 : 0xffffff8016fd1fc3 

0xffffffb099613fa0 : 0xffffff8016e60216 

      Kernel Extensions in backtrace:

         com.apple.driver.watchdog(1.0)[2C1307C5-FD71-3802-8D68-A67DB24BCB4A]@0xffffff801a163000->0xffffff801a164fff



Process name corresponding to current thread: watchdogd



Mac OS version:

20D80



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: 0x0000000016c00000

KernelCache base:  0xffffff8016e00000

Kernel slide:      0x0000000016c10000

Kernel text base:  0xffffff8016e10000

__HIB  text base: 0xffffff8016d00000

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: 9499664877805

Last Sleep:           absolute           base_tsc          base_nano

  Uptime  : 0x000008a3d0268b6d

  Sleep   : 0x00000775dc74bf09 0x00000000769c41b8 0x00000764a77d9a28

  Wake    : 0x00000775e3fe843d 0x0000000076c4fba0 0x00000775e2f8265b

last started kext at 9117326347000: >!UAudio 401.4 (addr 0xffffff7fb7310000, size 307200)

last stopped kext at 9177338381181: >usb.cdc 5.0.0 (addr 0xffffff80185de000, size 8192)

loaded kexts:

!ATopCaseHIDEventDriver 4030.5

AudioAUUC 1.70

X86PlatformShim 1.0.0

AGPM 119

!APlatformEnabler 2.7.0d0

@fsplaceholder 1.14.0

@fileutil 20.036.15

!AUpstreamUserClient 3.6.8

@filesystems.autofs 3.0

@kext.AMDFramebuffer 4.0.2

!AMikeyHIDDriver 131

@kext.AMDRadeonX4000 4.0.2

!AMikeyDriver 283.15

@kext.AMDRadeonServiceManager 4.0.2

!AHDA 283.15

!AGraphicsDevicePolicy 6.2.2

!A!IPCHPMC 2.0.1

!AThunderboltIP 4.0.3

!A!ISKLGraphics 16.0.1

!ASMCLMU 212

@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

!AHV 1

!ADiskImages2 1

!A!ISlowAdaptiveClocking 4.0.0

!A!ISKLGraphicsFramebuffer 16.0.1

eficheck 1

@kext.AMD8000!C 4.0.2

|Broadcom!B20703USBTransport 8.0.3d9

!AMCCSControl 1.14

@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

!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

!AHIDKeyboard 223

!AMultitouchDriver 4400.28

!AInputDeviceSupport 4400.35

!AHS!BDriver 4030.5

IO!BHIDDriver 8.0.3d9

@kext.triggers 1.0

@kext.AMDRadeonX4050HWLibs 1.0

@kext.AMDRadeonX4000HWServices 4.0.2

DspFuncLib 283.15

@kext.OSvKernDSPLib 529

!AGraphicsControl 6.2.2

!AThunderboltEDMSink 5.0.3

|IOSerial!F 11

|IOAVB!F 930.1

@plugin.IOgPTPPlugin 900.11

|IOEthernetAVB!C 1.1.0

@!AGPUWrangler 6.2.2

|IOSlowAdaptiveClocking!F 1.0.0

|IOAccelerator!F2 439.52

!ASMBusPCI 1.0.14d1

!AHDA!C 283.15

|IOHDA!F 283.15

|IOAudio!F 300.6.1

@vecLib.kext 1.2.0

@kext.AMDSupport 4.0.2

@!AGraphicsDeviceControl 6.2.2

|IONDRVSupport 585

|Broadcom!BHost!CUSBTransport 8.0.3d9

|IO!BHost!CUSBTransport 8.0.3d9

|IO!BHost!CTransport 8.0.3d9

X86PlatformPlugin 1.0.0

IOPlatformPlugin!F 6.0.0d8

|IOGraphics!F 585

!ASMBus!C 1.0.18d1

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

|IOUSB!F 900.4.2

|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 8.0.3d9

|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

Same here:

panic(cpu 2 caller 0xffffff800b964a25): 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 (13380 seconds ago): 1327, last successful checkin: 120 seconds ago

service: com.apple.WindowServer, total successful checkins since load (13350 seconds ago): 1323, last successful checkin: 120 seconds ago



Backtrace (CPU 2), Frame : Return Address

0xffffffb0c78bb670 : 0xffffff80086bab4d 

0xffffffb0c78bb6c0 : 0xffffff80087fd7e3 

0xffffffb0c78bb700 : 0xffffff80087ede1a 

0xffffffb0c78bb750 : 0xffffff800865fa2f 

0xffffffb0c78bb770 : 0xffffff80086ba3ed 

0xffffffb0c78bb890 : 0xffffff80086ba6d8 

0xffffffb0c78bb900 : 0xffffff8008ebf004 

0xffffffb0c78bb970 : 0xffffff800b964a25 

0xffffffb0c78bb980 : 0xffffff800b964678 

0xffffffb0c78bb9a0 : 0xffffff8008e4628e 

0xffffffb0c78bb9f0 : 0xffffff800b963ab4 

0xffffffb0c78bbb20 : 0xffffff8008e5045b 

0xffffffb0c78bbc80 : 0xffffff80087a8e51 

0xffffffb0c78bbd90 : 0xffffff80086c0147 

0xffffffb0c78bbe00 : 0xffffff8008696905 

0xffffffb0c78bbe60 : 0xffffff80086ae062 

0xffffffb0c78bbef0 : 0xffffff80087d1fc3 

0xffffffb0c78bbfa0 : 0xffffff8008660216 

      Kernel Extensions in backtrace:

         com.apple.driver.watchdog(1.0)[2C1307C5-FD71-3802-8D68-A67DB24BCB4A]@0xffffff800b963000->0xffffff800b964fff



Process name corresponding to current thread: watchdogd



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: 0x0000000008400000

KernelCache base:  0xffffff8008600000

Kernel slide:      0x0000000008410000

Kernel text base:  0xffffff8008610000

__HIB  text base: 0xffffff8008500000

System model name: iMac18,2 (Mac-77F17D7DA9285301)

System shutdown begun: NO

Panic diags file available: YES (0x0)

Hibernation exit count: 0



System uptime in nanoseconds: 13391863340266

Last Sleep:           absolute           base_tsc          base_nano

  Uptime  : 0x00000c2e0941df70

  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000

  Wake    : 0x0000000000000000 0x000000088ba00df0 0x0000000000000000

last started kext at 60593241424: @filesystems.smbfs 3.4.1 (addr 0xffffff7fa9866000, size 434176)

loaded kexts:

@filesystems.smbfs 3.4.1

!ATopCaseHIDEventDriver 4030.5

@fileutil 20.036.15

AudioAUUC 1.70

!APlatformEnabler 2.7.0d0

AGPM 119

X86PlatformShim 1.0.0

!AUpstreamUserClient 3.6.8

@fsplaceholder 1.14.0

@kext.AMDFramebuffer 4.0.2

@kext.AMDRadeonServiceManager 4.0.2

@filesystems.autofs 3.0

@kext.AMDRadeonX4000 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 8.0.3d9

@Dont_Steal_Mac_OS_X 7.0.0

!AHV 1

!ADiskImages2 1

!A!IKBLGraphics 16.0.1

!AHDAHardwareConfigDriver 283.15

!A!ISlowAdaptiveClocking 4.0.0

eficheck 1

AGDCBacklightControl 6.2.2

!ABacklight 180.3

!A!IKBLGraphicsFramebuffer 16.0.1

!AHDA 283.15

|Broadcom!B20703USBTransport 8.0.3d9

!AThunderboltIP 4.0.3

!A!IPCHPMC 2.0.1

ACPI_SMC_PlatformPlugin 1.0.0

@kext.AMD9500!C 4.0.2

!ASMCLMU 212

!AGFXHDA 100.1.431

!AMCCSControl 1.14

!AFIVRDriver 4.1.0

usb.!UHostBillboardDevice 1.0

|SCSITaskUserClient 436.40.6

|IO!BUSBDFU 8.0.3d9

!AFileSystemDriver 3.0.1

@filesystems.tmpfs 1

@filesystems.hfs.kext 556.60.1

@BootCache 40

@!AFSCompression.!AFSCompressionTypeZlib 1.0.0

@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1

@filesystems.apfs 1677.81.1

|!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

!AMultitouchDriver 4400.28

!AInputDeviceSupport 4400.35

!AHS!BDriver 4030.5

IO!BHIDDriver 8.0.3d9

!AHIDKeyboard 223

!UAudio 401.4

@kext.triggers 1.0

@kext.AMDRadeonX4200HWLibs 1.0

@kext.AMDRadeonX4000HWServices 4.0.2

!AGraphicsControl 6.2.2

|IOSerial!F 11

|IOAVB!F 930.1

@plugin.IOgPTPPlugin 900.11

|IOEthernetAVB!C 1.1.0

@!AGPUWrangler 6.2.2

|IOSlowAdaptiveClocking!F 1.0.0

!ABacklightExpert 1.1.0

|IOAccelerator!F2 439.52

DspFuncLib 283.15

@kext.OSvKernDSPLib 529

|Broadcom!BHost!CUSBTransport 8.0.3d9

|IO!BHost!CUSBTransport 8.0.3d9

|IO!BHost!CTransport 8.0.3d9

!ASMBusPCI 1.0.14d1

!AThunderboltEDMSink 5.0.3

!AThunderboltDPOutAdapter 8.1.4

IOPlatformPluginLegacy 1.0.0

X86PlatformPlugin 1.0.0

IOPlatformPlugin!F 6.0.0d8

@kext.AMDSupport 4.0.2

@!AGraphicsDeviceControl 6.2.2

|IONDRVSupport 585

!AHDA!C 283.15

|IOHDA!F 283.15

|IOAudio!F 300.6.1

@vecLib.kext 1.2.0

|IOGraphics!F 585

!ASMBus!C 1.0.18d1

usb.!UHub 1.2

usb.IOUSBHostHIDDevice 1.2

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

!ABSDKextStarter 3

|IOSurface 289.3

@filesystems.hfs.encodings.kext 1

!AXsanScheme 3

|IOAHCIBlock!S 332

|IO80211!F 1200.12.2b1

|IOSkywalk!F 1

mDNSOffloadUserClient 1.0.1b8

corecapture 1.0.4

|IOAHCI!F 294

|IONVMe!F 2.1.0

!A!ILpssGspi 3.0.60

!AThunderboltNHI 7.2.8

|IOThunderbolt!F 9.3.2

usb.!UXHCIPCI 1.2

usb.!UXHCI 1.2

usb.!UHostPacketFilter 1.0

|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 8.0.3d9

|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

Yesterday, my iMacPro crashed every couple of minutes. Disconnected external monitors, everything stable.

@Apple: This bug is super-annyoing, and needs to be fixed ASAP. It renders an expensive machine useless...

userspace watchdog timeout: no successful checkins from com.apple.remoted in 180 seconds
...

I have the same troubles for a while also since Big Sur is coming… Three times today!

panic(cpu 2 caller 0xffffff8009f64a25): 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 (15530 seconds ago): 1542, last successful checkin: 120 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (15530 seconds ago): 1554, last successful checkin: 0 seconds ago

iMac 21" Retina 4K 8GB RAM 2400 Mhz DDR4 (2017)

1. Ghz Quad Core Intel i5

Radeon Pro 560 4GB

Any help possible or just waiting for an Apple Big Sur update/bugfix?

Same same -- iMac shuts down at least once daily. We have two users set up on this machine:
Big Sur v11.2.3
iMac (Retina 5K, 27-inch, 2017)

1. GHz Quad-Core Intel Core i7

64 GB 2400 MHz DDR4
Radeon Pro 580 8 GB

I've reset the SMC and PRAM with absolutely no positive effect.

The fact that this has been going on for so long without any mention of an issue or fix from Apple is pretty bad -- you've taken a big reputational hit ...

Received the same error couple of times in my new MacMini M1 (2020), 16GB Memory, 2TB HDD. I was having time machine backup and connected to 2 4K external monitors. Need a fix for this:

Code Block 
panic(cpu 4 caller 0xfffffe0029cb1e58): watchdog timeout: no checkins from watchdogd in 94 seconds (3276 total checkins since monitoring last enabled)
Debugger message: panic
Memory ID: 0x6
OS release type: User
OS version: 20D91
Kernel version: Darwin Kernel Version 20.3.0: Thu Jan 21 00:06:51 PST 2021; root:xnu-7195.81.3~1/RELEASE_ARM64_T8101
Fileset Kernelcache UUID: F78A48EC84D7C3283E7C6C67D00889A7
Kernel UUID: 9FE8C0DA-8ED0-381C-9CEC-2A779F3E1503
iBoot version: iBoot-6723.81.1
secure boot?: YES
Paniclog version: 13
KernelCache slide: 0x000000001f240000
KernelCache base:  0xfffffe0026244000
Kernel slide:      0x000000001fd74000
Kernel text base:  0xfffffe0026d78000
Kernel text exec base:  0xfffffe0026e40000
mach_absolute_time: 0xb7b738d5f6
Epoch Time:        sec       usec
  Boot    : 0x605970f8 0x00049775
  Sleep   : 0x00000000 0x00000000
  Wake    : 0x00000000 0x00000000
  Calendar: 0x6059f15c 0x000a0dd7
CORE 0 recently retired instr at 0xfffffe0026faac0c
CORE 1 recently retired instr at 0xfffffe0026faac0c
CORE 2 recently retired instr at 0xfffffe0026faac0c
CORE 3 recently retired instr at 0xfffffe0026faac0c
CORE 4 recently retired instr at 0xfffffe0026fa9748
CORE 5 recently retired instr at 0xfffffe0026faac10
CORE 6 recently retired instr at 0xfffffe0026faac10
CORE 7 recently retired instr at 0xfffffe0026faac10
Total cpu_usage: 71475154
Thread task pri cpu_usage
0xfffffe002ac08c68 kernel_task 91 4551923
0xfffffe166d544cb0 kernel_task 91 4394301
0xfffffe167146f918 Google Chrome He 31 0
0xfffffe1680651960 Google Chrome He 31 0
0xfffffe166d464658 kernel_task 0 708423
Panicked task 0xfffffe166d1b12a8: 192326 pages, 499 threads: pid 0: kernel_task
Panicked thread: 0xfffffe166d544cb0, backtrace: 0xfffffe3066ff78b0, tid: 1600
		  lr: 0xfffffe0026e8dfd0  fp: 0xfffffe3066ff7920
		  lr: 0xfffffe0026e8dd9c  fp: 0xfffffe3066ff7990
		  lr: 0xfffffe0026faff0c  fp: 0xfffffe3066ff79b0
		  lr: 0xfffffe0026fa18b8  fp: 0xfffffe3066ff7a60
		  lr: 0xfffffe0026e477e8  fp: 0xfffffe3066ff7a70
		  lr: 0xfffffe0026e8da2c  fp: 0xfffffe3066ff7e00
		  lr: 0xfffffe0026e8da2c  fp: 0xfffffe3066ff7e70
		  lr: 0xfffffe00276286a0  fp: 0xfffffe3066ff7e90
		  lr: 0xfffffe0029cb1e58  fp: 0xfffffe3066ff7ec0
		  lr: 0xfffffe0029cb1634  fp: 0xfffffe3066ff7f00
		  lr: 0xfffffe00282155d0  fp: 0xfffffe3066ff7f20
		  lr: 0xfffffe0027f9a808  fp: 0xfffffe3066ff7fb0
		  lr: 0xfffffe0027585694  fp: 0xfffffe3066ff7fc0
		  lr: 0xfffffe0026fa41bc  fp: 0xfffffe3066ff7fe0
		  lr: 0xfffffe0026e4785c  fp: 0xfffffe3066ff7ff0
		  lr: 0xfffffe0026fa0780  fp: 0xfffffe3ff85bba50
		  lr: 0xfffffe0026fa0780  fp: 0xfffffe3ff85bba70
		  lr: 0xfffffe00270b9d40  fp: 0xfffffe3ff85bbac0
		  lr: 0xfffffe00270bf0e0  fp: 0xfffffe3ff85bbc20
		  lr: 0xfffffe00270be7a4  fp: 0xfffffe3ff85bbc90
		  lr: 0xfffffe00270be66c  fp: 0xfffffe3ff85bbcb0
		  lr: 0xfffffe0029beac78  fp: 0xfffffe3ff85bbd20
		  lr: 0xfffffe0027413d00  fp: 0xfffffe3ff85bbe20
		  lr: 0xfffffe0026f069c0  fp: 0xfffffe3ff85bbe80
		  lr: 0xfffffe0026f06864  fp: 0xfffffe3ff85bbe90
		  lr: 0xfffffe0026f4b0e0  fp: 0xfffffe3ff85bbf00
		  lr: 0xfffffe0026e50c14  fp: 0x0000000000000000
      Kernel Extensions in backtrace:
         com.apple.driver.AppleInterruptController(1.0d1)[B5629E50-71D8-3336-9FEB-315F74FD0954]@0xfffffe0027f98000->0xfffffe0027f9bfff
            dependency: com.apple.driver.AppleARMPlatform(1.0.2)[53D29C42-BCB1-384D-BE79-DAB9ED503C6C]@0xfffffe0027780000->0xfffffe00277cbfff
         com.apple.driver.watchdog(1.0)[03F48A25-3538-340A-B474-4374C1BB349B]@0xfffffe0029cb0000->0xfffffe0029cb3fff
         com.apple.driver.AppleS5L8960XWatchDogTimer(1.0)[5390F79D-79C7-36D9-91A6-71E7A28C9661]@0xfffffe0028214000->0xfffffe0028217fff
            dependency: com.apple.driver.AppleARMPlatform(1.0.2)[53D29C42-BCB1-384D-BE79-DAB9ED503C6C]@0xfffffe0027780000->0xfffffe00277cbfff
            dependency: com.apple.driver.watchdog(1)[03F48A25-3538-340A-B474-4374C1BB349B]@0xfffffe0029cb0000->0xfffffe0029cb3fff
            dependency: com.apple.iokit.IOReportFamily(47)[9ADDDDA4-EEC2-3CD1-9B10-6755522844FB]@0xfffffe0029290000->0xfffffe0029293fff
         com.apple.filesystems.smbfs(3.4.1)[BED81F26-6A18-34A4-A477-51B1AFF95D32]@0xfffffe0029bcc000->0xfffffe0029c27fff
            dependency: com.apple.kec.corecrypto(11.1)[E7263606-770E-3C0F-B5A1-F10042B34365]@0xfffffe0029b14000->0xfffffe0029b5ffff
            dependency: com.apple.kext.triggers(1.0)[47F2D40F-1C2E-3C3A-AC5C-4DED90380B6D]@0xfffffe0029c34000->0xfffffe0029c37fff