Catalina watchdog timeout KP on shutdown or restart

[twsps]

Hello all,

As I keep updating macOS and waiting for a fix for my KP, it seems like I cannot find a way to fix it. Below is my KP report for my Desktop build i7-7700K with Rx560 built on OpenCore.
I tried to search online for this issue on watchdog, but I do not see anyone to have a solution, does anyone know how to fix this issue?

panic(cpu 2 caller 0xffffff7f9378daae): watchdog timeout: no checkins from watchdogd in 302 seconds (94 totalcheckins since monitoring last enabled), shutdown in progress
Backtrace (CPU 2), Frame : Return Address
0xffffff92147b3c40 : 0xffffff801251a65d mach_kernel : _handle_debugger_trap + 0x49d
0xffffff92147b3c90 : 0xffffff8012654a75 mach_kernel : _kdp_i386_trap + 0x155
0xffffff92147b3cd0 : 0xffffff80126465fe mach_kernel : _kernel_trap + 0x4ee
0xffffff92147b3d20 : 0xffffff80124c0a40 mach_kernel : _return_from_trap + 0xe0
0xffffff92147b3d40 : 0xffffff8012519d27 mach_kernel : _DebuggerTrapWithState + 0x17
0xffffff92147b3e40 : 0xffffff801251a117 mach_kernel : _panic_trap_to_debugger + 0x227
0xffffff92147b3e90 : 0xffffff8012cc1b28 mach_kernel : _panic_with_thread_context
0xffffff92147b3f00 : 0xffffff7f9378daae com.apple.driver.watchdog : __ZN10IOWatchdog14userspacePanicEP8OSObjectPvP25IOExternalMethodArguments.cold.1
0xffffff92147b3f10 : 0xffffff7f9378d486 com.apple.driver.watchdog : __ZN10IOWatchdog13newUserClientEP4taskPvjP12OSDictionaryPP12IOUserClient
0xffffff92147b3f50 : 0xffffff7f937a2d9c com.apple.driver.AppleSMC : __ZN16SMCWatchDogTimer14watchdogThreadEv + 0xb0
0xffffff92147b3fa0 : 0xffffff80124c013e mach_kernel : _call_continuation + 0x2e
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f9378c000->0xffffff7f93794fff
         com.apple.driver.AppleSMC(3.1.9)[AB612149-B321-3B95-8741-B99E79274FCD]@0xffffff7f93795000->0xffffff7f937b3fff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[68557A36-4EE1-372A-983B-BB2769FDB8E0]@0xffffff7f93783000
            dependency: com.apple.driver.watchdog(1)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f9378c000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[B130A8B7-967F-330E-942F-E0BB93C71C56]@0xffffff7f92f31000

BSD process name corresponding to current thread: kernel_task
Boot args: keepsyms=1

Mac OS version:
19G73

Kernel version:
Darwin Kernel Version 19.6.0: Sun Jul  5 00:43:10 PDT 2020; root:xnu-6153.141.1~9/RELEASE_X86_64
Kernel UUID: 783946EA-6F11-3647-BF90-787AEA14B954
Kernel slide:     0x0000000012200000
Kernel text base: 0xffffff8012400000
__HIB  text base: 0xffffff8012300000
System model name: iMac18,3
System shutdown begun: YES
Panic diags file available: YES (0x0)

System uptime in nanoseconds: 1251375453885

Thanks,
twsps

 

[vonlost]

I see SMC in your traceback. I have had some luck preventing watchdogd panic by simultaneously resetting SMC and PR, though it has come back eventually.

 

[twsps]

I see SMC in your traceback. I have had some luck preventing watchdogd panic by simultaneously resetting SMC and PR, though it has come back eventually.

How did you reset PR and SMC in OC?

 

[twsps]

I see SMC in your traceback. I have had some luck preventing watchdogd panic by simultaneously resetting SMC and PR, though it has come back eventually.

I saw this documentation in VirtualSMC
Add watchdog=0 to disable WatchDog timer (if you get accidental reboots).

I will try tomorrow and report back if it works.

 

[chompychomps]

I saw this documentation in VirtualSMC
Add watchdog=0 to disable WatchDog timer (if you get accidental reboots).

I will try tomorrow and report back if it works.

does this work for you? This is edited in the config.plist right?

 

[twsps]

does this work for you? This is edited in the config.plist right?

Yes, however, it just solves the issue where it won't reboot but takes a long time to shutdown.

 

[chompychomps]

Yes, however, it just solves the issue where it won't reboot but takes a long time to shutdown.

ah.. but it stops the crashes? The crashes and random system freezes are killing me!!

 

[star-affinity]

Just wanted to say that I've been getting the same (especially when waking from sleep) on a ”real” Mac Pro Mid 2010 (aka MacPro5,1) since I installed Catalina 10.15.2 and a RX 5700 XT graphics card. Continues to this day with Catalina 10.15.7 (19H15). I have no idea what's triggering it. I wonder if Big Sur will make any difference…