kernel panic every few days: userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

[thefriendshipmachine]

I'm not running any custom kernel extensions. Does anyone else have experience with this problem? It's really annoying. This mac never used to do this until randomly it started a few weeks ago. I didn't update MacOS or anything when it began.

I repaired my disk and did a system inspection using system recovery and it said everything was fine.

kernel panic:

panic(cpu 6 caller 0xffffff801496ea25): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds
service: com.apple.logd, total successful checkins since wake (2480 seconds ago): 249, last successful checkin: 0 seconds ago
service: com.apple.WindowServer, total successful checkins since wake (2480 seconds ago): 237, last successful checkin: 120 seconds ago

Backtrace (CPU 6), Frame : Return Address
0xffffffc1babcb670 : 0xffffff80116b9aed
0xffffffc1babcb6c0 : 0xffffff80117fc6e3
0xffffffc1babcb700 : 0xffffff80117ecd1a
0xffffffc1babcb750 : 0xffffff801165ea2f
0xffffffc1babcb770 : 0xffffff80116b938d
0xffffffc1babcb890 : 0xffffff80116b9678
0xffffffc1babcb900 : 0xffffff8011ebe434
0xffffffc1babcb970 : 0xffffff801496ea25
0xffffffc1babcb980 : 0xffffff801496e678
0xffffffc1babcb9a0 : 0xffffff8011e4569e
0xffffffc1babcb9f0 : 0xffffff801496dab4
0xffffffc1babcbb20 : 0xffffff8011e4f86b
0xffffffc1babcbc80 : 0xffffff80117a7d81
0xffffffc1babcbd90 : 0xffffff80116bf0e7
0xffffffc1babcbe00 : 0xffffff8011695905
0xffffffc1babcbe60 : 0xffffff80116ad012
0xffffffc1babcbef0 : 0xffffff80117d0ec3
0xffffffc1babcbfa0 : 0xffffff801165f216
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[7AE04EA4-D026-39A0-B2D5-5C9E4EE72967]@0xffffff801496d000->0xffffff801496efff

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: 0x0000000011400000
KernelCache base: 0xffffff8011600000
Kernel slide: 0x0000000011410000
Kernel text base: 0xffffff8011610000
__HIB text base: 0xffffff8011500000
System model name: iMac19,1 (Mac-XXX)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 53998376614236
Last Sleep: absolute base_tsc base_nano
Uptime : 0x0000311c7a0e7c68
Sleep : 0x00002edaa8d483e7 0x00000000ce63812c 0x00002ecca1d9c3a3
Wake : 0x00002edaaf550b1f 0x00000000ce7c7bb8 0x00002edaac9a4920
last started kext at 15038532225885: >!UAudio 401.4 (addr 0xffffff7fb1b0f000, size 307200)
last stopped kext at 53932701638701: >!ASMCRTC 1.0 (addr 0xffffff8012cb0000, size 16384)
loaded kexts:
@filesystems.smbfs 3.4.1
>AudioAUUC 1.70
>!ATopCaseHIDEventDriver 4020.6
>AGPM 119
>X86PlatformShim 1.0.0
>!APlatformEnabler 2.7.0d0
@fileutil 20.036.15
>!AUpstreamUserClient 3.6.8
@kext.AMDFramebuffer 4.0.2
@filesystems.autofs 3.0
@kext.AMDRadeonX5000 4.0.2
@kext.AMDRadeonServiceManager 4.0.2
>!AGraphicsDevicePolicy 6.2.2
@AGDCPluginDisplayMetrics 6.2.2
>!AHDA 283.15
>pmtelemetry 1
>LuaHardwareAccess 1.0.16
|IOUserEthernet 1.0.1
|IO!BSerialManager 8.0.2f9
@Dont_Steal_Mac_OS_X 7.0.0
>!AHV 1
>eficheck 1
>!AMCCSControl 1.14
>!ADiskImages2 1
>!A!ISlowAdaptiveClocking 4.0.0
>!AGFXHDA 100.1.431
>!A!IPCHPMC 2.0.1
>!A!IKBLGraphics 16.0.1
>!AThunderboltIP 4.0.3
>!A!ICFLGraphicsFramebuffer 16.0.1
>!ASMCLMU 212
@kext.AMD10000!C 4.0.2
>BCMWLANFirmware4378.Hashstore 1
>BCMWLANFirmware4377.Hashstore 1
>BCMWLANFirmware4364.Hashstore 1
>BCMWLANFirmware4355.Hashstore 1
@filesystems.tmpfs 1
@filesystems.hfs.kext 556.60.1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
>!ASDXC 1.9.0
|!ABCM5701Ethernet 11.0.0
>!ABCMWLANBusInterfacePCIeMac 1
@filesystems.apfs 1677.60.23
>!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
>!AActuatorDriver 4400.28
>!AMultitouchDriver 4400.28
>!AInputDeviceSupport 4400.35
>!AHS!BDriver 4020.6
>IO!BHIDDriver 8.0.2f9
@kext.triggers 1.0
@kext.AMDRadeonX5400HWLibs 1.0
@kext.AMDRadeonX5000HWServices 4.0.2
>!AGraphicsControl 6.2.2
>DspFuncLib 283.15
@kext.OSvKernDSPLib 529
|IOAVB!F 900.12
@!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
|IO!BHost!CUARTTransport 8.0.2f9
|IO!BHost!CTransport 8.0.2f9
>!ASMBus!C 1.0.18d1
|IONDRVSupport 585
>!A!ILpssUARTv1 3.0.60
>!A!ILpssUARTCommon 3.0.60
>!AOnboardSerial 1.0
>X86PlatformPlugin 1.0.0
>IOPlatformPlugin!F 6.0.0d8
|IOAccelerator!F2 439.52
>!ASMBusPCI 1.0.14d1
@plugin.IOgPTPPlugin 900.11
|IOEthernetAVB!C 1.1.0
@kext.AMDSupport 4.0.2
@!AGraphicsDeviceControl 6.2.2
|IOGraphics!F 585
>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
>!ABSDKextStarter 3
|IOSurface 289.3
@filesystems.hfs.encodings.kext 1
>!AThunderboltNHI 7.2.8
|IOThunderbolt!F 9.3.2
>!ABCMWLANCoreMac 1.0.0
|IOSerial!F 11
|IO80211!FV2 1200.12.2b1
|IOSkywalk!F 1
>mDNSOffloadUserClient 1.0.1b8
>IOImageLoader 1.0.0
>corecapture 1.0.4
|IONVMe!F 2.1.0
|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

 

[LeroyW]

I have the same problem. Several times over the last few weeks. Twice yesterday.

Big Sur 11.1
iMac (Retina 5K, 27-inch, 2019)
Processor 3.6 GHz 8-Core Intel Core i9
Memory 32 GB 2667 MHz DDR4
Graphics Radeon Pro 580X 8 GB

 

[Alwis]

I too have random kernel panics with Big Sur, seems to happen in different modules.

 

[Bilbodad]

Same problem

 

[tipxbomb]

I have a similar issue with MBP 16" OS Catalina 10.15.7


Date/Time: 2021-01-28 14:26:06 +0200
End time: 2021-01-28 14:26:12 +0200
OS Version: Mac OS X 10.15.7 (Build 19H15)
Architecture: x86_64h
Report Version: 29

Data Source: Stackshots
Shared Cache: 0x1142000 F9F56FD2-0748-3B45-A14A-0DDA16E4701B
Reason: (1 monitored services unresponsive): remoted connection watchdog expired, 342 successful replies since wake, last successful checkin 80 seconds ago

Command: UserEventAgent
Path: /usr/libexec/UserEventAgent
Version: ??? (???)
PID: 123

Event: service process watchdog
Duration: 5.57s
Steps: 12

Hardware model: MacBookPro16,1
Active cpus: 16
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Time Awake Since Boot: 75000s



Process: UserEventAgent [123]
UUID: 93C3CCC8-5AD6-30E4-88A3-E18A92179FED
Path: /usr/libexec/UserEventAgent
Architecture: x86_64
Footprint: 7400 KB
Start time: 2021-01-28 14:26:06 +0200
End time: 2021-01-28 14:26:12 +0200
Num samples: 12 (1-12)
CPU Time: <0.001s
Note: 2 idle work queue threads omitted

 

[luckman212]

Anyone in here dared to try one of the 11.2RC's yet? I've been getting a lot of KPs too lately (in addition to the shutdown/restart watchdog timeout one which has been "known" and affected me for years).

 

[Jackill]

PROBLEM.... SORT OF FIXED/REDUCED, Been having this problem just like everyone, noticed that it only crashed when things were idle, and once when it looked like it was going to crash I started to move the mouse and it came bace from the edge. I got the idea to try a "Mouse jiggle USB port mouse mover" which I turn on anytime I am away from my screen (The Jiggler I have has a built in power switch) and for the last 2 months it has not kernel panicked once when the Jiggler was on. This proves that it is a problem when things are Idle and Apple needs to fix this.

 

[Jupeman]

PROBLEM.... SORT OF FIXED/REDUCED, Been having this problem just like everyone, noticed that it only crashed when things were idle, and once when it looked like it was going to crash I started to move the mouse and it came bace from the edge. I got the idea to try a "Mouse jiggle USB port mouse mover" which I turn on anytime I am away from my screen (The Jiggler I have has a built in power switch) and for the last 2 months it has not kernel panicked once when the Jiggler was on. This proves that it is a problem when things are Idle and Apple needs to fix this.

I may also try this. My problem has been escalated up to Apple to the point where they replaced my Mac Pro and the exact problems persist. This is absolutely an idle time issue and the juggler is no doubt a hack solution but I bet it does work! I would prefer my screens went to sleep, though.