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

I managed to solve this problem by resetting OneDrive. From Microsoft:

1. Quit OneDrive. (Select the cloud icon in the top tray, then select Settings > Quit OneDrive.)

2. Find OneDrive in your Applications folder.

3. Right-click OneDrive and select Show Package Contents.

4. Browse to the Contents > Resources folder.

5. Double-click ResetOneDriveApp.command (or ResetOneDriveAppStandalone.command, if you're using the standalone app).

6. Start OneDrive and finish the setup process.

Same here after upgrading to Big Sur and installing Avira Antivirus...

is there any fix yet?

been experiencing this for the past three months, ever since I upgraded to macOS 11.2.

my machine is 13" MacBook Pro with Retina Display (Early 2015).

I've done practically everything:

• Disabling login items
• Reinstalling macOS from Recovery Mode
• Constantly resetting NVRAM and PRAM just to get out of the boot loop
• Wipe clean my MacBook and installed a fresh copy of macOS Big Sur
• ditch this Mac and get a new one

I have been having these a lot lately. I am having flashbacks from Windows ME.

userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

I think this was an issue durring one of the last updates in OS X.

same problem here - IMAC 2017 with Big Sur 11.3.1.
crashes almost daily - never had this before.

First i suspected overheating and activity monitor showed almost 99% CPU time for one drive (which i never use). I de-installed one-drive and then unit worked fine. After upgrade to 11.3.1. Big sur now these crashes. Big headache.

Same issue here.
Apple, please help!

My Mac panics every time I try to run Visual Studio (on Windows, Parallels Desktop) and try to debug an iOS app (which runs Xamarin on Mac => Xcode). The problem starts to occur since updating to XCode 12.5.


macOS BigSur
v. 11.3.1 (20E241)

MacBook Pro (16-inch, 2019)
2,4 GHz Intel Core i9 8 core
64 GB 2667 MHz DDR4
Intel UHD Graphics 630 1536 MB

Code Block 
  "build" : "Bridge OS 5.3 (18P4556)",
  "crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",
  "date" : "2021-05-13 14:30:41.34 +0000",
  "incident" : "D08D6DA6-633B-4F09-AF9F-A109EA4CBA9A",
  "kernel" : "Darwin Kernel Version 20.4.0: Thu Mar  4 23:34:36 PST 2021; root:xnu-7195.101.1~1\/RELEASE_ARM64_T8010",
  "macOSOtherString" : "\n In Memory Panic Stackshot Succeeded  Bytes Traced 188132 (Uncompressed 474976) **\n",
  "macOSPanicFlags" : "0xc",
  "macOSPanicString" : "panic(cpu 6 caller 0xffffff801bdeba25): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds\nservice returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl \nservice: com.apple.logd, total successful checkins since load (3730 seconds ago): 362, last successful checkin: 120 seconds ago\nservice: com.apple.WindowServer, total successful checkins since load (3700 seconds ago): 358, last successful checkin: 120 seconds ago\nservice: com.apple.remoted, total successful checkins since load (3730 seconds ago): 372, last successful checkin: 0 seconds ago\n\nBacktrace (CPU 6), Frame : Return Address\n0xffffffc1ce71b670 : 0xffffff8018a8e02d \n0xffffffc1ce71b6c0 : 0xffffff8018bd48e3 \n0xffffffc1ce71b700 : 0xffffff8018bc4eda \n0xffffffc1ce71b750 : 0xffffff8018a32a2f \n0xffffffc1ce71b770 : 0xffffff8018a8d84d \n0xffffffc1ce71b890 : 0xffffff8018a8db43 \n0xffffffc1ce71b900 : 0xffffff801929d6f4 \n0xffffffc1ce71b970 : 0xffffff801bdeba25 \n0xffffffc1ce71b980 : 0xffffff801bdeb660 \n0xffffffc1ce71b9a0 : 0xffffff801921eede \n0xffffffc1ce71b9f0 : 0xffffff801bdeaa34 \n0xffffffc1ce71bb20 : 0xffffff801922911b \n0xffffffc1ce71bc80 : 0xffffff8018b80401 \n0xffffffc1ce71bd90 : 0xffffff8018a936ad \n0xffffffc1ce71be00 : 0xffffff8018a69c85 \n0xffffffc1ce71be60 : 0xffffff8018a812a2 \n0xffffffc1ce71bef0 : 0xffffff8018ba91fd \n0xffffffc1ce71bfa0 : 0xffffff8018a33216 \n      Kernel Extensions in backtrace:\n         com.apple.driver.watchdog(1.0)[57B278ED-0B7C-3544-9CFE-53963BB1DAF3]@0xffffff801bde9000->0xffffff801bdebfff\n\nProcess name corresponding to current thread: watchdogd\nBoot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev\n\nMac OS version:\n20E241\n\nKernel version:\nDarwin Kernel Version 20.4.0: Thu Apr 22 21:46:47 PDT 2021; root:xnu-7195.101.2~1\/RELEASE_X86_64\nKernel UUID: 068F99A3-1DB3-31C0-87D5-09942F122BB6\nKernelCache slide: 0x0000000018800000\nKernelCache base:  0xffffff8018a00000\nKernel slide:      0x0000000018810000\nKernel text base:  0xffffff8018a10000\n__HIB  text base: 0xffffff8018900000\nSystem model name: MacBookPro16,1 (Mac-E1008331FDC96864)\nSystem shutdown begun: NO\nHibernation exit count: 0\n\nSystem uptime in nanoseconds: 3745315881131\nLast Sleep:           absolute           base_tsc          base_nano\n  Uptime  : 0x000003680639087d\n  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000\n  Wake    : 0x0000000000000000 0x00000003e7e63e5a 0x0000000000000000\nlast started kext at 2652656710011: com.eltima.ElmediaPlayer.kext\t1.0 (addr 0xffffff7fb3bbc000, size 8192)\nlast stopped kext at 269583496430: >IOPlatformPluginLegacy\t1.0.0 (addr 0xffffff7fb2104000, size 36864)\nloaded kexts:\ncom.eltima.ElmediaPlayer.kext\t1.0\ncom.parallels.kext.usbconnect\t16.1.3 49160\ncom.parallels.kext.netbridge\t16.1.3 49160\ncom.parallels.kext.vnic\t16.1.3 49160\ncom.parallels.kext.hypervisor\t16.1.3 49160\ncom.intel.driver.EnergyDriver\t3.7.0\n@filesystems.smbfs\t3.5\n>AGPM\t122\n>!

So this is still happening just now it is a different error than Watchdog now it is saying AMDFrambuffer and it is crashing randomly when I am using it.

What I have done so far...

1. reset using all key combinations at startup

2. delete hard drive and reinstall

3. turned off power saver features with monitors

4. selected mac color profiles for external monitors

5. pull hair out and consider going back to Windows

I run 3 external monitors one 27" LG 4k and 2 24" dell HD monitors off of my iMac Pro. System and error is as follows...

Model Name: iMac Pro
Model Identifier: iMacPro1,1
Processor Name: 8-Core Intel Xeon W
Processor Speed: 3.2 GHz
Number of Processors: 1
Total Number of Cores: 8
L2 Cache (per Core): 1 MB
L3 Cache: 11 MB
Hyper-Threading Technology: Enabled
Memory: 32 GB

panic(cpu 0 caller 0xffffff800e3d5f07): "AMDFramebufferVega10::setPowerState(0xffffff93786e4800 : 0xffffff7fa72b3c1c, 2 -> 1) timed out after 45611 ms"@/System/Volumes/Data/SWE/macOS/BuildRoots/2288acc43c/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.101.2/iokit/Kernel/IOServicePM.cpp:5382
Backtrace (CPU 0), Frame : Return Address
0xffffffc111b03ac0 : 0xffffff800dc8e02d
0xffffffc111b03b10 : 0xffffff800ddd48e3
0xffffffc111b03b50 : 0xffffff800ddc4eda
0xffffffc111b03ba0 : 0xffffff800dc32a2f
0xffffffc111b03bc0 : 0xffffff800dc8d84d
0xffffffc111b03ce0 : 0xffffff800dc8db43
0xffffffc111b03d50 : 0xffffff800e49d68a
0xffffffc111b03dc0 : 0xffffff800e3d5f07
0xffffffc111b03e10 : 0xffffff800e3d5829
0xffffffc111b03e20 : 0xffffff800e3ee96e
0xffffffc111b03e60 : 0xffffff800e3d45a8
0xffffffc111b03e80 : 0xffffff800dcd44b5
0xffffffc111b03ef0 : 0xffffff800dcd5424
0xffffffc111b03fa0 : 0xffffff800dc3213e

Process name corresponding to current thread: kernel_task
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
20E241

Kernel version:
Darwin Kernel Version 20.4.0: Thu Apr 22 21:46:47 PDT 2021; root:xnu-7195.101.2~1/RELEASE_X86_64
Kernel UUID: 068F99A3-1DB3-31C0-87D5-09942F122BB6
KernelCache slide: 0x000000000da00000
KernelCache base: 0xffffff800dc00000
Kernel slide: 0x000000000da10000
Kernel text base: 0xffffff800dc10000
__HIB text base: 0xffffff800db00000
System model name: iMacPro1,1 (Mac-7BA5B2D9E42DDD94)
System shutdown begun: NO
Hibernation exit count: 0

System uptime in nanoseconds: 1173030792263
Last Sleep: absolute base_tsc base_nano
Uptime : 0x000001111e1574d2
Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000
Wake : 0x0000000000000000 0x0000000b7ebe19ca 0x0000000000000000
last started kext at 118468815923: @filesystems.smbfs 3.5 (addr 0xffffff7fa7ca6000, size 487424)
last stopped kext at 519608357640: |IOHDA!F 283.15 (addr 0xffffff7fa5d05000, size 16384)
loaded kexts:
@filesystems.smbfs 3.5

!ATopCaseHIDEventDriver 4040.11
AudioAUUC 1.70
AGPM 122
!APlatformEnabler 2.7.0d0
X86PlatformShim 1.0.0
@filesystems.autofs 3.0
!AHIDALSService 1
!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.4
@fileutil 20.036.15
@kext.AMDRadeonServiceManager 4.0.4
@kext.AMDRadeonX5000 4.0.4
!AGraphicsDevicePolicy 6.2.9
@AGDCPluginDisplayMetrics 6.2.9
pmtelemetry 1
|IOUserEthernet 1.0.1
usb.!UUserHCI 1
|IO!BSerialManager 8.0.4d18
@Dont_Steal_Mac_OS_X 7.0.0
!AHV 1
!ADiskImages2 1
BridgeAudioCommunication 140.4
!AAVEBridge 6.1
!A!ISlowAdaptiveClocking 4.0.0
!AGFXHDA 100.1.433
@kext.AMD10000!C 4.0.4
!AMCCSControl 1.14
!A!IPCHPMC 2.0.1
!AThunderboltIP 4.0.3
!A!IMCEReporter 115
!ABridgeAudio!C 140.4
usb.!UHostBillboardDevice 1.0
!UCardReader 511.101.1
@!AEthernetAquantiaAqtionFirmware 1.0.36
|SCSITaskUserClient 436.100.4
BCMWLANFirmware4378.Hashstore 1
BCMWLANFirmware4377.Hashstore 1
BCMWLANFirmware4364.Hashstore 1
BCMWLANFirmware4355.Hashstore 1
!AFileSystemDriver 3.0.1
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.100.11
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@filesystems.apfs 1677.100.114
!ABCMWLANBusInterfacePCIeMac 1
@private.KextAudit 1.0
!AACPIButtons 6.1
!ASMBIOS 2.1
!AACPIEC 6.1
!AAPIC 1.7
@!ASystemPolicy 2.0.0
@nke.applicationfirewall 311
|IOKitRegistryCompatibility 1
|EndpointSecurity 1
!AHIDKeyboard 224
!AMultitouchDriver 4440.3
!AInputDeviceSupport 4400.35
!AHS!BDriver 4040.11
IO!BHIDDriver 8.0.4d18
@kext.triggers 1.0
@kext.AMDRadeonX5100HWLibs 1.0
|IOAccelerator!F2 442.9
@kext.AMDRadeonX5000HWServices 4.0.4
|IOAVB!F 940.4
|IOEthernetAVB!C 1.1.0
X86PlatformPlugin 1.0.0
@plugin.IOgPTPPlugin 980.4
|IO!BHost!CUARTTransport 8.0.4d18
|IO!BHost!CTransport 8.0.4d18
@!AGPUWrangler 6.2.9
|IOSlowAdaptiveClocking!F 1.0.0
|IONDRVSupport 585.1
@kext.AMDSupport 4.0.4
!ASMBus!C 1.0.18d1
usb.IOUSBHostHIDDevice 1.2
!A!ILpssUARTv1 3.0.60
!A!ILpssUARTCommon 3.0.60
!AOnboardSerial 1.0
!AGraphicsControl 6.2.9
@!AGraphicsDeviceControl 6.2.9
IOPlatformPlugin!F 6.0.0d8
!AThunderboltDPOutAdapter 8.1.4
|IOGraphics!F 585.1
|IOAudio!F 300.6.1
@vecLib.kext 1.2.0
usb.cdc.ecm 5.0.0
usb.cdc.ncm 5.0.0
usb.!UHub 1.2
usb.cdc 5.0.0
usb.networking 5.0.0
usb.!UHostCompositeDevice 1.2
!ABSDKextStarter 3
|IOSurface 290.7
!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
@filesystems.hfs.encodings.kext 1
!AXsanScheme 3
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
!ABCMWLANCoreMac 1.0.0
|IOSerial!F 11
|IO80211!FV2 1200.12.2b1
|IOSkywalk!F 1
IOImageLoader 1.0.0
corecapture 1.0.4
!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
!AEthernetAquantiaAqtion 1.0.64
mDNSOffloadUserClient 1.0.1b8
usb.!UHostPacketFilter 1.0
|IOUSB!F 900.4.2
usb.!UXHCIPCI 1.2
usb.!UXHCI 1.2
!AEFINVRAM 2.1
!AEFIRuntime 2.1
!ASMCRTC 1.0
|IOSMBus!F 1.1
|IOHID!F 2.0.0
$!AImage4 3.0.0
|IOTimeSync!F 980.4
|IONetworking!F 3.4
DiskImages 493.0.0
|IO!B!F 8.0.4d18
|IOReport!F 47
|IO!BPacketLogger 8.0.4d18
$quarantine 4
$sandbox 300.0
@kext.!AMatch 1.0.0d1
|CoreAnalytics!F 1
!ASSE 1.0
!AKeyStore 2
!UTDM 511.101.1
|IOUSBMass!SDriver 184.101.1
|IOSCSIBlockCommandsDevice 436.100.4
|IO!S!F 2.1
|IOSCSIArchitectureModel!F 436.100.4
!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

I also had this issue twice in 2 hours.
MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)
Processor: 2.3 GHz Dual-Core Intel Core i5
Memory: 8 GB 2133 MHz LPDDR3
Graphics: Intel Iris Plus Graphics 640 1536 MB

At the time, I haven't had any external peripheral connected.

Code Block 

Code Block 
panic(cpu 0 caller 0xffffff80049eba25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 158 seconds
service: com.apple.logd, total successful checkins since load (8379 seconds ago): 833, last successful checkin: 22 seconds ago
service: com.apple.WindowServer, total successful checkins since load (8349 seconds ago): 819, last successful checkin: 158 seconds ago
Backtrace (CPU 0), Frame : Return Address
0xffffffb0b10b3670 : 0xffffff800168e02d 
0xffffffb0b10b36c0 : 0xffffff80017d48e3 
0xffffffb0b10b3700 : 0xffffff80017c4eda 
0xffffffb0b10b3750 : 0xffffff8001632a2f 
0xffffffb0b10b3770 : 0xffffff800168d84d 
0xffffffb0b10b3890 : 0xffffff800168db43 
0xffffffb0b10b3900 : 0xffffff8001e9d6f4 
0xffffffb0b10b3970 : 0xffffff80049eba25 
0xffffffb0b10b3980 : 0xffffff80049eb660 
0xffffffb0b10b39a0 : 0xffffff8001e1eede 
0xffffffb0b10b39f0 : 0xffffff80049eaa34 
0xffffffb0b10b3b20 : 0xffffff8001e2911b 
0xffffffb0b10b3c80 : 0xffffff8001780401 
0xffffffb0b10b3d90 : 0xffffff80016936ad 
0xffffffb0b10b3e00 : 0xffffff8001669c85 
0xffffffb0b10b3e60 : 0xffffff80016812a2 
0xffffffb0b10b3ef0 : 0xffffff80017a91fd 
0xffffffb0b10b3fa0 : 0xffffff8001633216 
   Kernel Extensions in backtrace:
     com.apple.driver.watchdog(1.0)[57B278ED-0B7C-3544-9CFE-53963BB1DAF3]@0xffffff80049e9000->0xffffff80049ebfff
Process name corresponding to current thread: watchdogd
Mac OS version:
20E241
Kernel version:
Darwin Kernel Version 20.4.0: Thu Apr 22 21:46:47 PDT 2021; root:xnu-7195.101.2~1/RELEASE_X86_64
Kernel UUID: 068F99A3-1DB3-31C0-87D5-09942F122BB6
KernelCache slide: 0x0000000001400000
KernelCache base: 0xffffff8001600000
Kernel slide:   0x0000000001410000
Kernel text base: 0xffffff8001610000
__HIB text base: 0xffffff8001500000
System model name: MacBookPro14,1 (Mac-B4831CEBD52A0C4C)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0
System uptime in nanoseconds: 8408583483730
Last Sleep:      absolute      base_tsc     base_nano
 Uptime : 0x000007a5c6a1b586
 Sleep  : 0x0000000000000000 0x0000000000000000 0x0000000000000000
 Wake  : 0x0000000000000000 0x0000000c02662fa4 0x0000000000000000
last started kext at 220969630009: com.box.filesystems.osxfuse	403.11.2 (addr 0xffffff7f9c85e000, size 86016)
loaded kexts:
com.box.filesystems.osxfuse	403.11.2
>AudioAUUC	1.70
@filesystems.autofs	3.0
@fileutil	20.036.15
|IO!BSerialManager	8.0.4d18
>!APlatformEnabler	2.7.0d0
>AGPM	122
>X86PlatformShim	1.0.0
>!AGraphicsDevicePolicy	6.2.9
>!AUpstreamUserClient	3.6.8
@AGDCPluginDisplayMetrics	6.2.9
>pmtelemetry	1
|IOUserEthernet	1.0.1
>!AHDAHardwareConfigDriver	283.15
>usb.!UUserHCI	1
@Dont_Steal_Mac_OS_X	7.0.0
>!AHDA	283.15
>!A!IKBLGraphics	16.0.2
>!AHV	1
>AGDCBacklightControl	6.2.9
>!A!IKBLGraphicsFramebuffer	16.0.2
>ACPI_SMC_PlatformPlugin	1.0.0
>!A!IPCHPMC	2.0.1
>!AThunderboltIP	4.0.3
>!ABacklight	180.3
>!ADiskImages2	1
>!A!ISlowAdaptiveClocking	4.0.0
>!ACameraInterface	7.6.0
>!ASMCLMU	212
>!AGFXHDA	100.1.433
>!AFIVRDriver	4.1.0
>eficheck	1
>!AMCCSControl	1.14
@filesystems.apfs	1677.100.114
>!AFileSystemDriver	3.0.1
@filesystems.tmpfs	1
@filesystems.hfs.kext	556.100.11
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
>!ATopCaseHIDEventDriver	4040.11
>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	311
|IOKitRegistryCompatibility	1
|EndpointSecurity	1
@kext.triggers	1.0
>!AGraphicsControl	6.2.9
|IOAVB!F	940.4
|IOEthernetAVB!C	1.1.0
>DspFuncLib	283.15
@kext.OSvKernDSPLib	529
|IOAccelerator!F2	442.9
@plugin.IOgPTPPlugin	980.4
>IOPlatformPluginLegacy	1.0.0
>!ABacklightExpert	1.1.0
|IO!BHost!CUARTTransport	8.0.4d18
|IO!BHost!CTransport	8.0.4d18
>!AThunderboltEDMSink	5.0.3
>!AThunderboltDPOutAdapter	8.1.4
@!AGPUWrangler	6.2.9
@!AGraphicsDeviceControl	6.2.9
|IOSlowAdaptiveClocking!F	1.0.0
>!AHDA!C	283.15
|IOHDA!F	283.15
|IONDRVSupport	585.1
|IOAudio!F	300.6.1
@vecLib.kext	1.2.0
>!A!ILpssUARTv1	3.0.60
>!A!ILpssUARTCommon	3.0.60
>!AOnboardSerial	1.0
|IOSerial!F	11
>!ASMBusPCI	1.0.14d1
>X86PlatformPlugin	1.0.0
>IOPlatformPlugin!F	6.0.0d8
|IOGraphics!F	585.1
>!ASMBus!C	1.0.18d1
>!AThunderboltDPInAdapter	8.1.4
>!AThunderboltDPAdapter!F	8.1.4
>!AThunderboltPCIDownAdapter	4.1.1
>!AHPM	3.4.4
>!A!ILpssI2C!C	3.0.60
>!AXsanScheme	3
>!ABSDKextStarter	3
|IOSurface	290.7
@filesystems.hfs.encodings.kext	1
>!AActuatorDriver	4440.3
>!AHIDKeyboard	224
>!AMultitouchDriver	4440.3
>!AInputDeviceSupport	4400.35
>!AHS!BDriver	4040.11
>IO!BHIDDriver	8.0.4d18
>!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
>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	980.4
|IONetworking!F	3.4
>DiskImages	493.0.0
|IO!B!F	8.0.4d18
|IOReport!F	47
|IO!BPacketLogger	8.0.4d18
$quarantine	4
$sandbox	300.0
@kext.!AMatch	1.0.0d1
|CoreAnalytics!F	1
>!ASSE	1.0
>!AKeyStore	2
>!UTDM	511.101.1
|IOUSBMass!SDriver	184.101.1
|IOSCSIBlockCommandsDevice	436.100.4
|IO!S!F	2.1
|IOSCSIArchitectureModel!F	436.100.4
>!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

Code Block 

I thought I had solved the issue with OneDrive, but NO. I was wrong. It did slow the number of crashes but now it has become more erratic than before. Some things seem to be consistent, though:

• TimeMachine starts failing to back up

• Office365 apps begin to crash (and this is due to problems accessing Profiles)

• Memory hogs say apps should be closed (even though they are not clogging - as seen on Activity Monitor).

• When trying to reboot before it crashes, computer closes all apps but won't reboot - it gets stuck "after" closing the Finder

So you force shut down. When you restart the computer, all your personal logins on browsers are gone, all your Finder Windows are closed (Safari even closes all open windows - and returns to older instances, not the one before restart) and Office apps are able to reopen again. OneDrive may or may not be open.

So something happens in the library since it destroys part of the cache and personal data saved on browser.

this happens to me for months now, went over every update and no fix in sight.
what gives Apple?

Same issue, has anybody been able to fix it?

"com.apple.driver.watchdog"

Same issue, I suspect external monitors. As someone pointed out, no problem with Win 10 in forever. This is my first Mac, I have no delusions about stability, it immediately trashed my exfat RAID. This is the third version of the OS. Apple Support: Did you reboot? Not impressed.

I don't have any solutions, but wanted to say I have the same issue with a 2017 iMac, using two external monitors.

Same issue and crash report. Using 2019 MacBookPro 16,1, Big Sur 11.4. No peripherals attached. Microsoft Edge open but inactive. Running NordVPN and Kaspersky. It just quietly went to sleep and restarted. Kind of zen-like. The reference to userspace watchdog, however, triggered my paranoia.

I have the same issue with BigSure 11.4 (and earlier versions of BigSur).

I installed BigSure fresh on a MacBook Pro (15-inch 2019) 2,3GHz 8-Core Intel Core-9 32GB memory Radeon Pro 560X 4GB

I have an externan Monitor (Dell U3415W) Previously i connected it via HDMI and an adapter but since a month ago I use a Belkin Thunderbolt-3 Dock Pro where the external monitor is connected through DisplayPort. The problem exists before I changed to the docking station but maybe is a little more frequent now.

It is not unusual that it is either Microsoft Outlook or Microsoft Teams that are the app that stop working first but there are others as well. I mostly work with IntelliJ or Visual Code with both Teams and Slack running. Also use Mail and Safari a lot. For anti virus I use Avira (only AntiVirus Pro).

I also get screen freezes from time to time that seems to be shorter than the time out so I usually just wait (frustrating) till it unfreezes and can then continue to work. When I check the Activity Monitor after the freeze the Window Server is usually pretty busy.

Apparently something is bothering the Window Server but the question is what. Before BigSure this happened maybe on or two times per year now its several times per week.

Please Apple, fix this!