Panic - Watchdog Timeout: no checkins from watchdogd in 185 seconds

It fixed it is all that matters,

Doesn’t always.

do you think my prblem as per photo is the same? thank you:)

thank you so much for your answer.

I don't have any app cleaner and I don't have any usb attached.

I have this same problem.

Should I also download the 10.15.4 COMBO update if I am now running Big Sur and not Catalina?

Never mind - I read that it is no longer valid.

Continued running caffeinate again yesterday and NO crashes, however I did notice during past crashes that there was a sound stream error right before the issue would occur.

So yesterday, I did not use the Mac for any Mac based calls. Sound output is fine but thinking it may have to do with sound input, like using the Microphone.

I was using Gen 2 AirPods but switched to AirPods Pro’s yesterday.

I am going to try to reproduce today and see if I can pin down the cause of my issue.

macOS 10.15.6 introduced a bug in App Sandbox that literally kills virtualization software causing a memory leak followed by a watchdog timeout kernel panic once kexts are loaded into the system.

If you're using such apps like VMware Fusion and VirtualBox I strongly encourage you to avoid installation and wait for a supplemental update addressing the issue.

I’m having the same KP issue every other day or so since 10.15.6 on my Mac mini. No monitor, 2 USB hard drives connected, no 3rd party apps besides Backblaze, & isn’t actively used (it’s my file/time machine server)

Only thing I’ve tried is reinstalling the 10.15.6 combo update.

New Mac Pro connected only to Pro Display, updated to 10.15.6. Now it has these kernel panic shutdowns but the log shows nothing. However when I restart the shutdown cause log claims that it shutdown normally right after this same restart! There is McAfee running but this did not happen before 10.15.6.

I've been getting the same panic every few days too. I'm on an iMac (27-inch, Late 2012) (no external display) and 10.15.2

I've managed to keep the panic to every few days by running:

caffeinate -u -d -s

I tried leaving out the '-d' so that the display could sleep, after this had stopped it panicking for three days, but it panicked again a day later, so I put it back.

For what it's worth, I've attached my most recent panic log:

Same here - I am running a 2017 MacBook Pro with 2 27" Apple Thunderbolt monitors and am not using Time Machine for backup. I did recently apply the Catalina 10.15.6 update and now am seeing a Kernal Panic from a watchdog timeout causing the machine to freeze and die.

perhaps this is common but when I look at the backtrace the issue appears in the AppleSMC driver.

Kernel Extensions in backtrace:

com.apple.driver.watchdog(1.0)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8c6f9000->0xffffff7f8c701fff

com.apple.driver.AppleSMC(3.1.9)[AB612149-B321-3B95-8741-B99E79274FCD]@0xffffff7f8c741000->0xffffff7f8c75ffff

dependency: com.apple.iokit.IOACPIFamily(1.4)[68557A36-4EE1-372A-983B-BB2769FDB8E0]@0xffffff7f8c6f0000

dependency: com.apple.driver.watchdog(1)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8c6f9000

dependency: com.apple.iokit.IOPCIFamily(2.9)[B130A8B7-967F-330E-942F-E0BB93C71C56]@0xffffff7f8c702000

I am not going to reinstall the OS because that will take way to long and will be tedious, so I just went into the Energy saver config and disabled the monitor and disks from going to sleep to see if that is the cause.

I'll try to keep you posted.

Thanks.

Same here - I am running a 2017 MacBook Pro with 2 27" Apple Thunderbolt monitors and am not using Time Machine for backup. I did recently apply the Catalina 10.15.6 update and now am seeing a Kernal Panic from a watchdog timeout causing the machine to freeze and die.

perhaps this is common but when I look at the backtrace the issue appears in the AppleSMC driver.

Kernel Extensions in backtrace:

com.apple.driver.watchdog(1.0)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8c6f9000->0xffffff7f8c701fff

com.apple.driver.AppleSMC(3.1.9)[AB612149-B321-3B95-8741-B99E79274FCD]@0xffffff7f8c741000->0xffffff7f8c75ffff

dependency: com.apple.iokit.IOACPIFamily(1.4)[68557A36-4EE1-372A-983B-BB2769FDB8E0]@0xffffff7f8c6f0000

dependency: com.apple.driver.watchdog(1)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8c6f9000

dependency: com.apple.iokit.IOPCIFamily(2.9)[B130A8B7-967F-330E-942F-E0BB93C71C56]@0xffffff7f8c702000

I am not going to reinstall the OS because that will take way to long and will be tedious, so I just went into the Energy saver config and disabled the monitor and disks from going to sleep to see if that is the cause.

I'll try to keep you posted.

My current power setting are:

System Power Settings:

 AC Power:

 System Sleep Timer (Minutes): 0

 Disk Sleep Timer (Minutes): 0

 Display Sleep Timer (Minutes): 180

 Wake on AC Change: No

 Wake on Clamshell Open: Yes

 Wake on LAN: Yes

 AutoPowerOff Delay: 28800

 AutoPowerOff Enabled: 1

 Current Power Source: Yes

 DarkWakeBackgroundTasks: 1

 Display Sleep Uses Dim: Yes

 GPUSwitch: 2

 Hibernate Mode: 3

 High Standby Delay: 86400

 PrioritizeNetworkReachabilityOverSleep: 0

 ProximityDarkWake: 1

 Standby Battery Threshold: 50

 Standby Delay: 10800

 Standby Enabled: 1

 TCPKeepAlivePref: 1

 Battery Power:

 System Sleep Timer (Minutes): 30

 Disk Sleep Timer (Minutes): 0

 Display Sleep Timer (Minutes): 20

 Wake on AC Change: No

 Wake on Clamshell Open: Yes

 AutoPowerOff Delay: 28800

 AutoPowerOff Enabled: 1

 DarkWakeBackgroundTasks: 0

 Display Sleep Uses Dim: Yes

 GPUSwitch: 2

 Hibernate Mode: 3

 High Standby Delay: 86400

 ProximityDarkWake: 0

 Reduce Brightness: Yes

 Standby Battery Threshold: 50

 Standby Delay: 10800

 Standby Enabled: 1

TCPKeepAlivePref: 1

No dice - thought it may be related.

Error:

panic(cpu 6 caller 0xffffff7f94efaad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

service: com.apple.logd, total successful checkins since wake (25170 seconds ago): 2518, last successful checkin: 0 seconds ago

service: com.apple.WindowServer, total successful checkins since wake (25170 seconds ago): 2456, last successful checkin: 120 seconds ago

Kernel Extensions in backtrace:

com.apple.driver.watchdog(1.0)

Same issue on both of my Macbook Pro 16"s.... Start happening about a week ago, so probably in-line with a recent update.

Macbook crashes every time it goes to sleep. Using caffeinate, or a wrapper around it (such as Keeping You Awake), keeps the issue at bay as it stops sleeping. I use an external monitor which might relate.

Please test your updates at Apple before sending them out to everyone. I shouldn't have to hard reboot every time a $2000 laptop goes to sleep.

It seems that I found out a solution. I tried 2 things.

• I stopped "Google Backup and Sync" (stop sync and quit)
• I unchecked Power Nap

Honestly I'm not sure which was the actual cause but my mac didn't cause panic last night.

Hope this helps someone.