MP 1,1-5,1 Kernel Panic understanding

[Gabriele Inzaghi]

hello,
can anybody help me to understand what this means?
(I have a macpro 5.1 runing OSX 12.1 that randomly freezing)
I think the problem could be the GPU, but I'm not sure, here the message I receve

panic(cpu 14 caller 0xffffff8013d029ad): userspace watchdog timeout: no successful checkins from WindowServer in 120 seconds
service: logd, total successful checkins since load (3970 seconds ago): 398, last successful checkin: 0 seconds ago
service: WindowServer, total successful checkins since load (3940 seconds ago): 382, last successful checkin: 120 seconds ago
service: opendirectoryd, total successful checkins since load (3970 seconds ago): 397, last successful checkin: 0 seconds ago

Panicked task 0xffffff872b6c3670: 3 threads: pid 97: watchdogd
Backtrace (CPU 14), panicked thread: 0xffffff8bf8fad000, Frame : Return Address
0xffffffd12dfd36c0 : 0xffffff8010887ddd mach_kernel : _handle_debugger_trap + 0x41d
0xffffffd12dfd3710 : 0xffffff80109e7d15 mach_kernel : _kdp_i386_trap + 0x145
0xffffffd12dfd3750 : 0xffffff80109d74e3 mach_kernel : _kernel_trap + 0x533
0xffffffd12dfd37a0 : 0xffffff8010827a60 mach_kernel : _return_from_trap + 0xe0
0xffffffd12dfd37c0 : 0xffffff80108881ad mach_kernel : _DebuggerTrapWithState + 0xad
0xffffffd12dfd38e0 : 0xffffff8010887966 mach_kernel : _panic_trap_to_debugger + 0x2b6
0xffffffd12dfd3940 : 0xffffff8011116156 mach_kernel : _panic_with_options + 0x5c
0xffffffd12dfd39b0 : 0xffffff8013d029ad com.apple.driver.watchdog : __ZN10IOWatchdog14userspacePanicEP8OSObjectPvP25IOExternalMethodArguments.cold.1 + 0x27
0xffffffd12dfd39c0 : 0xffffff8013d02600 com.apple.driver.watchdog : __ZN10IOWatchdog35userspaceDisableUserspaceMonitoringEP8OSObjectPvP25IOExternalMethodArguments
0xffffffd12dfd39e0 : 0xffffff801108a35d mach_kernel : __ZN12IOUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x1dd
0xffffffd12dfd3a30 : 0xffffff8013d019bb com.apple.driver.watchdog : __ZN20IOWatchdogUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x7f
0xffffffd12dfd3b60 : 0xffffff801109462c mach_kernel : _is_io_connect_method + 0x3cc
0xffffffd12dfd3cc0 : 0xffffff801098eca4 mach_kernel : _iokit_server_routine + 0x4e84
0xffffffd12dfd3dd0 : 0xffffff8010862e98 mach_kernel : _ipc_kmsg_send + 0x468
0xffffffd12dfd3e60 : 0xffffff80108798dd mach_kernel : _mach_msg_overwrite_trap + 0x2bd
0xffffffd12dfd3ef0 : 0xffffff80109bad1e mach_kernel : _mach_call_munger64 + 0x22e
0xffffffd12dfd3fa0 : 0xffffff8010828246 mach_kernel : _hndl_mach_scall64 + 0x16
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[3ED7E410-AB67-344C-BAAA-45D38F726761]@0xffffff8013d00000->0xffffff8013d02fff

Process name corresponding to current thread (0xffffff8bf8fad000): watchdogd
Boot args: keepsyms=1 debug=0x100 shikigva=128 unfairgva=1 agdpmod=pikera -wegtree

Mac OS version:
21C52

Kernel version:
Darwin Kernel Version 21.2.0: Sun Nov 28 20:28:54 PST 2021; root:xnu-8019.61.5~1/RELEASE_X86_64
Kernel UUID: E32C293C-7D8B-327C-A335-6AAD250A4881
KernelCache slide: 0x0000000010600000
KernelCache base: 0xffffff8010800000
Kernel slide: 0x0000000010610000
Kernel text base: 0xffffff8010810000
__HIB text base: 0xffffff8010700000
System model name: MacPro5,1 (Mac-27AD2F918AE68F61)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

thank you
System uptime in nanoseconds: 3977617437813
Last Sleep: absolute base_tsc base_nano
Uptime : 0x0000039e1c797ea1
Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000
Wake : 0x0000000000000000 0x0000001dffa0b848 0x0000000000000000
Zone info:
Foreign : 0xffffff8015cbe000 - 0xffffff8015ccb000
Native : 0xffffff80c4f22000 - 0xffffffa0c4f22000
Readonly : 0xffffff8591bee000 - 0xffffff872b582000
Metadata : 0xffffffdb18110000 - 0xffffffdb38c03000
Bitmaps : 0xffffffdb38c03000 - 0xffffffdb5cc03000

 

[appltech]

It starts randomly, you can use your Mac sometimes, yes?
I can suggest an app called (don't bother with name) Amphetamine (free, App Store) it will rebound your Mac from "Idle" state.
Or maybe misbehavior with Metal, so downgrading (easy guide) to High Sierra can be helpful

 

[Gabriele Inzaghi]

Thank you applthech. I have the same "freezing problem" since I changed my GPU from Nvidia 1080 to Vega 64 to be able to update my Macpro and keep it up to date with Photoshop and da Vinci resolve.
I don't think I'll solve the problem, because nowadays GPUs are really expensive and a cheap Mac mini M1 is way more powerful then my old 5.1 I'm just Curius to understand the problem by reading the system error message but I'm not an expert. That's why I asked

 

[Gabriele Inzaghi]

shure your pixlas mod was correct, and all 12V and ground are there?

do you OC by yourself or used OCLP? (version 0.4.2 was released yesterday)

Yes the pixlas mod was correct, I used it with my Nvidia 1080ti for months before change to the Radeon 64.
I used OCPL 2 times for 2 os upgrade on 2 different internal hd but the problem remain always the same.
Randomly the os freeze, mainly, but not only, when I play video, I open a software, I use preview.
Is the real reason of those crashes written in the report I posted above?