Since installing Catalina yesterday, multiple crashes from userspace watchdog timeout

In my case MacBook Pro 2018 with two monitors connected with Caldigit T3 Plus still having the same crashes after installing macOS 10.15.

Not sure what else to try after a complete macOS reinstallation and Caldigit firmware update. This issue has been happening since Catalina beta 1 and, most likely at this point, will be left behind. Hopefully macOS 10.16 addresses this problem from the beginning.

Just installed 10.15.5 and still no chance to cleanly shut down my MBP 16”. Dock disappears now (yeah, wow...) but it still freezes and will then reboot, even with my intention to turn the Mac off. Also sleep / wake issues still exist. In resume, what a crap!

panic(cpu 2 caller 0xffffff7f8b1a1ad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds

service: com.apple.logd, total successful checkins since load (5540 seconds ago): 555, last successful checkin: 0 seconds ago

service: com.apple.WindowServer, total successful checkins since load (5510 seconds ago): 536, last successful checkin: 120 seconds ago

Time machine set to manual, all 4 ports taken: external monitor connected directly by type-c to DisplayPort cable + Hub with USBs + External HDD with Time Machine + Charger

We have the same problem here as well.

Macbook air, mid 2012

OS: Catalina 10.15.5

The system freezes and restarts frequently when what we are doing is just playing a youtube video. Because of frequent freezing and restart, the laptop has become almost not usable. Shocked to learn so many people have the same problem. Hope Apple can release a fix soon.

Same problem dual monitors attached and time machine running. Happens even during active use.

panic(cpu 1 caller 0xffffff7f862f9ad5): 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 (1940 seconds ago): 183, last successful checkin: 120 seconds ago

service: com.apple.WindowServer, total successful checkins since load (1910 seconds ago): 191, last successful checkin: 0 seconds ago

Backtrace (CPU 1), Frame : Return Address

0xffffff920eabb720 : 0xffffff800571f5cd

0xffffff920eabb770 : 0xffffff8005858b05

0xffffff920eabb7b0 : 0xffffff800584a68e

0xffffff920eabb800 : 0xffffff80056c5a40

0xffffff920eabb820 : 0xffffff800571ec97

0xffffff920eabb920 : 0xffffff800571f087

0xffffff920eabb970 : 0xffffff8005ec2858

0xffffff920eabb9e0 : 0xffffff7f862f9ad5

0xffffff920eabb9f0 : 0xffffff7f862f97fa

0xffffff920eabba10 : 0xffffff8005e54aae

0xffffff920eabba60 : 0xffffff7f862f8cfe

0xffffff920eabbb60 : 0xffffff8005e5dcd3

0xffffff920eabbca0 : 0xffffff80058082b2

0xffffff920eabbdb0 : 0xffffff8005725328

0xffffff920eabbe10 : 0xffffff80056fbcc5

0xffffff920eabbe70 : 0xffffff8005712aa2

0xffffff920eabbf00 : 0xffffff8005830d05

0xffffff920eabbfa0 : 0xffffff80056c6226

Kernel Extensions in backtrace:

com.apple.driver.watchdog(1.0)[B435C72B-B311-3C67-8AA1-1D5CE0FAD429]@0xffffff7f862f8000->0xffffff7f86300fff

BSD process name corresponding to current thread: watchdogd

Mac OS version:

19F96

I did this morning and crashed twice by 11 am. I. was actually actively using my computer when it froze and rebooted. Didn't get a chance to test if it happens when sleeps. But certainly that was happening before.

Well... I am still having issues :-( I started the party too early I guess and it also begins to be really annoying. I just send a bug report to Apple. Not even sure if it's not a hardware problem. Would be even worse, since my Mac is a few months old.

Yeah, will do that. Already spoke to support. Last crash yesterday, trying to shut it down (no external devices connected) was the definitive motive to do so:

panic(cpu 0 caller 0xffffff8008cc3183): "PowerOff timed out in phase 'Notifying priority clients'. Total 30000 ms:
vfs_unmountall: 1195 ms
Blocked on priority client: 31394 ms @ 0x<ptr>, com.apple.iokit.IOStorageFamily(2.1)[E13E9C61-F1F5-3A81-B1EF-65669C3CBDBF]@0x<ptr>->0x<ptr>
"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-6153.121.2/iokit/Kernel/IOPMrootDomain.cpp:5403

🤦🏼‍♂️

I tried everything! PRAM NVRAM ... No success. I just found out yesterday that in my case the sleep / wake up issue only exist when the power plug is connected. My Mac not connected to the power cable behaves normally. In Mac Rumors they told me not to worry and that it is not a hardware issue. Still doubting if bringing it in to service. Problem is the being without working tool for a week or so.....

From what I've read in this thread the current Catalina 15.6 Beta doesn't fix this. Does anyone know if they are at least prioritizing fixing this issue for the full release? My understanding is that the full release will happen around WWDC which happens on June 22. I'm just trying to figure out if it's worthwhile to do a clean Catalina install or not, although I have read that the issue persists with a clean install.

Monkeyman8 wrote:

From what I've read in this thread the current Catalina 15.6 Beta doesn't fix this. Does anyone know if they are at least prioritizing fixing this issue for the full release? .

Unfortunately you wont (shouldnt) see any comments from anyone on the Beta due to its privacy agreement. Anything mentioned here is also removed by the Moderators.

... and yes I have tried a clean install on my Mac Pro (iBin) some months ago. It didn't help me although some have reported improvements. You could potentially install on to a USB SSD and boot from that to test without disrupting existing install.

I just setup two LG 4K (27UL850) monitors today and started experiencing this issue on my 16" MBP.

I crash when going to sleep or turning off my displays 100% of the time when the laptop is in clamshell mode and BOTH monitors connected.

I don't crash when only one monitor is connected or both are connected and the laptop is open.

Both are connected via USB-C. I tried using a USB-C to DP adaptor for one of the monitors but it didn't make a difference.

I tried disabling my spotlight index and it unfortunately didn't help :(

I'm receiving the same kernel panic error that most people are reporting:

panic(cpu 6 caller 0xffffff7f8879cad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 140 seconds

If I come across anything I'll post any results I find, and I'm happy to try out things to troubleshoot the problem.

On eGPUs: I got the OWC with a Radeon RX 5700 xt. It's speeded up things quite a bit. The Sonnets are also good.

• https://eshop.macsales.com/item/OWC/HELIOSFX650/
• https://www.sonnettech.com/product/egfx-breakaway-box.html

Awesome, i'll try that out. Has anyone tried plugging their power on the right and running a fan? I think this might be a heating issue and I saw on macrumors that the left ports will trigger a kernel task when things heat up too much

I have been using a 16" MBPro running Catalina for a few months in clamshell mode with an external Philips monitor with no occurrence of this problem. Today I updated to 10.15.5 (from 10.15.4, I'm 90% sure) and my system now locks up and eventually crashes every time the display sleeps. Guess that's progress of a kind! If anyone out there is still running < 10.15.5, don't update.

I tried the suggestion about disabling spotlight, but the system crashed again the very next time it went to sleep.

Yuck!