XCMP Kernel panic on cold boot.

[Balamut]

Hi fellas, any ideas what might cause this? Only happens when I start from the shut down. Only happens on Big Sur.

 

Spoiler

panic(cpu 4 caller 0xffffff801a5da368): "XCPM lock timeout, cpu: 4, lock: 0xffffff801b3ff680, lock value: 0xffff0006, deadline: 0x12c5603c114, current: 0x12c56243e4e, timeout: 0x141e101e, contender: 0xffff0006, sniffs: 0x5, CAScount: 0x0"@/System/Volumes/Data/SWE/macOS/BuildRoots/d86ba9a80c/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.141.32/osfmk/x86_64/xcpm/xcpm_internal.h:308
Backtrace (CPU 4), Frame : Return Address
0xffffffe603dab980 : 0xffffff801a48b26d mach_kernel : _handle_debugger_trap + 0x3fd
0xffffffe603dab9d0 : 0xffffff801a5d2c83 mach_kernel : _kdp_i386_trap + 0x143
0xffffffe603daba10 : 0xffffff801a5c327a mach_kernel : _kernel_trap + 0x55a
0xffffffe603daba60 : 0xffffff801a42fa2f mach_kernel : _return_from_trap + 0xff
0xffffffe603daba80 : 0xffffff801a48aa8d mach_kernel : _DebuggerTrapWithState + 0xad
0xffffffe603dabba0 : 0xffffff801a48ad83 mach_kernel : _panic_trap_to_debugger + 0x273
0xffffffe603dabc10 : 0xffffff801ac9c9fa mach_kernel : _panic + 0x54
0xffffffe603dabc80 : 0xffffff801a5da368 mach_kernel : _xcpm_get_accrued_plimit + 0x2d8
0xffffffe603dabce0 : 0xffffff801a5da7ea mach_kernel : _xcpm_enable_pstate_ctrs + 0x11a
0xffffffe603dabd80 : 0xffffff801a5dc309 mach_kernel : _xcpm_timer + 0x629
0xffffffe603dabdf0 : 0xffffff801a5dd3fd mach_kernel : _xcpm_urgency + 0xe4d
0xffffffe603dabec0 : 0xffffff801a5c5d93 mach_kernel : _thread_tell_urgency + 0x83
0xffffffe603dabf00 : 0xffffff801a4b0889 mach_kernel : _thread_dispatch + 0x5f9
0xffffffe603dabf70 : 0xffffff801a4b1cc6 mach_kernel : _thread_continue + 0x46
0xffffffe603dabfa0 : 0xffffff801a42efe5 mach_kernel : _Thread_continue + 0x5

Process name corresponding to current thread: kernel_task
Boot args: keepsyms=1 npci=0x2000 alcid=1

Mac OS version:
20G728

Kernel version:
Darwin Kernel Version 20.6.0: Tue Jun 21 20:50:28 PDT 2022; root:xnu-7195.141.32~1/RELEASE_X86_64
Kernel UUID: EF7C73B8-EDF8-3EDC-ACD0-1D18C771C96D
KernelCache slide: 0x000000001a200000
KernelCache base:  0xffffff801a400000
Kernel slide:      0x000000001a210000
Kernel text base:  0xffffff801a410000
__HIB  text base: 0xffffff801a300000
System model name: MacPro7,1 (Mac-27AD2F918AE68F61)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 48669786046
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x0000000b54f21d7f
  Sleep   : 0x0000000000000000 0x0000000000000000 0x0000000000000000
  Wake    : 0x0000000000000000 0x0000010dbd7638d2 0x0000000000000000

 

 

[Slice]

Check your Name (_PPC, .... or Method (_PPC... It is PLimit. If there is Method then it is wrong because the Name should be RW.

[Balamut]

Thank you