Sleep causing Kernel panic on dual Xeon 7820

[jjzazuet]

Hi, thanks for this EFI!

I've tried tweaking it up to the point where mine differs a lot from your EFI, but what I currently have is:

• T7820 running Ventura 13.6.1 with dual Xeon Gold 6130 cpus.
• Everything works, except for sleep.

Here are my observations:

• With two dual cpus, the machine can correctly enter sleep mode, but a Kernel panic occurs when the machine wakes up.
• Different operating systems, Windows 11 and Arch Linux, are capable of getting the machine to sleep, and then wake it up correctly.
• As is the case with your original EFI, when using a single Xeon Gold 6130 cpu (without the extra CPU train installed) the machine is able to sleep and wake up correctly.

Upon restarting from a Kernel panic, I can see the following stack trace:

mp_kdp_enter() timed-out on cpu 0, NMI-ing
mp_kdp_enter() NMI pending on cpus: 0 32 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
mp_kdp_enter() timed-out during locked wait after NMI;expected 32 acks but received 1 after 7695413 loops in 1047538170 ticks
panic(cpu 0 caller 0xffffff800dbdea27): Invalid queue linkage: elt:0xffffff8f8c1d8f38 {prev:0xffffff800e31d080, next:0xffffff800e0acee8, prev->next:0xffffff8f8c1d8f38, next->prev:0xffffff8f8c841938} @mpsc_queue.c:46
Panicked task 0xffffff9457a8be18: 374 threads: pid 0: kernel_task
Backtrace (CPU 0), panicked thread: 0xffffff9deec9a598, Frame : Return Address
0xffffffb10c88bb30 : 0xffffff800d470c7d mach_kernel : _handle_debugger_trap + 0x4ad
0xffffffb10c88bb80 : 0xffffff800d5c4f54 mach_kernel : _kdp_i386_trap + 0x114
0xffffffb10c88bbc0 : 0xffffff800d5b4a67 mach_kernel : _kernel_trap + 0x3b7
0xffffffb10c88bc10 : 0xffffff800d411971 mach_kernel : _return_from_trap + 0xc1
0xffffffb10c88bc30 : 0xffffff800d470f5d mach_kernel : _DebuggerTrapWithState + 0x5d
0xffffffb10c88bd20 : 0xffffff800d470607 mach_kernel : _panic_trap_to_debugger + 0x1a7
0xffffffb10c88bd80 : 0xffffff800dbdb9ab mach_kernel : _panic + 0x84
0xffffffb10c88be70 : 0xffffff800dbdea27 mach_kernel : ___queue_element_linkage_invalid + 0x2e
0xffffffb10c88be90 : 0xffffff800d4d0c43 mach_kernel : _timer_queue_expire_with_options + 0x683
0xffffffb10c88bf10 : 0xffffff800d5a1f04 mach_kernel : _timer_intr + 0x84
0xffffffb10c88bf50 : 0xffffff800d5b3b3e mach_kernel : _rtclock_intr + 0x2e
0xffffffb10c88bf60 : 0xffffff800d5bdefa mach_kernel : _lapic_interrupt + 0x4a
0xffffffb10c88bf80 : 0xffffff800d5b43b6 mach_kernel : _interrupt + 0xd6
0xffffffb10c88bfe0 : 0xffffff800d411a9a mach_kernel : _hndl_allintrs + 0x9a
0xffffffa91f723c90 : 0xffffff800e375090 com.apple.driver.AppleACPIPlatform : __ZN23AppleACPIPlatformExpert13sleepPlatformEv + 0x30c
0xffffffa91f723ce0 : 0xffffff800e3793b5 com.apple.driver.AppleACPIPlatform : __ZN12AppleACPICPU7haltCPUEv + 0x75
0xffffffa91f723d00 : 0xffffff800db37975 mach_kernel : __Z16IOCPUSleepKernelv + 0x1b5
0xffffffa91f723d50 : 0xffffff800db88dc4 mach_kernel : __ZN14IOPMrootDomain15powerChangeDoneEm + 0xac4
0xffffffa91f723dd0 : 0xffffff800daf9e19 mach_kernel : __ZN9IOService8all_doneEv + 0x739
0xffffffa91f723e40 : 0xffffff800daf6bf6 mach_kernel : __ZN9IOService23actionPMWorkQueueInvokeEP11IOPMRequestP13IOPMWorkQueue + 0x876
0xffffffa91f723e90 : 0xffffff800daf4310 mach_kernel : __ZN13IOPMWorkQueue17checkRequestQueueEP11queue_entryPb + 0x90
0xffffffa91f723ee0 : 0xffffff800daf41ba mach_kernel : __ZN13IOPMWorkQueue12checkForWorkEv + 0xca
0xffffffa91f723f20 : 0xffffff800db1270e mach_kernel : __ZN10IOWorkLoop15runEventSourcesEv + 0x12e
0xffffffa91f723f60 : 0xffffff800db11d57 mach_kernel : __ZN10IOWorkLoop10threadMainEv + 0x37
0xffffffa91f723fa0 : 0xffffff800d41119e mach_kernel : _call_continuation + 0x2e
      Kernel Extensions in backtrace:
         com.apple.driver.AppleACPIPlatform(6.1)[EC0D2043-72FD-38BC-96A6-97177FF55876]@0xffffff800e369000->0xffffff800e3e0fff
            dependency: com.apple.driver.AppleSMC(3.1.9)[DD55DA6A-679A-3797-947C-0B50B7B5B659]@0xffffff800eade000->0xffffff800eafafff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[D342E754-A422-3F44-BFFB-DEE93F6723BC]@0xffffff800fa3c000->0xffffff800fa3dfff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[18153FB8-529A-32CC-9C31-57F159E58DC6]@0xffffff800feac000->0xffffff800feddfff

Process name corresponding to current thread (0xffffff9deec9a598): kernel_task
Boot args: npci=0x2000 alcid=12 keepsyms=1 agdpmod=pikera

Mac OS version:
22G313

Kernel version:
Darwin Kernel Version 22.6.0: Wed Oct  4 21:25:26 PDT 2023; root:xnu-8796.141.3.701.17~4/RELEASE_X86_64
Kernel UUID: 6059599F-7994-349C-8DC6-03F3B60C83DE
roots installed: 0
KernelCache slide: 0x000000000d000000
KernelCache base:  0xffffff800d200000
Kernel slide:      0x000000000d0dc000
Kernel text base:  0xffffff800d2dc000
__HIB  text base: 0xffffff800d100000
System model name: MacPro7,1 (Mac-27AD2F918AE68F61)
System shutdown begun: NO
Panic diags file available: NO (0xe00002bc)
Hibernation exit count: 0

System uptime in nanoseconds: 174882103794
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x00000028b7c92510
  Sleep   : 0x000000287b1e4595 0x0001ada92b38fa8c 0x0000000000000000
  Wake    : 0x0000000000000000 0x0000000a3e95559e 0x000000287b8506e2
Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space
Zone info:
  Zone map: 0xffffff891f388000 - 0xffffffa91f388000
  . PGZ   : 0xffffff891f388000 - 0xffffff8927389000
  . VM    : 0xffffff8927389000 - 0xffffff8df2d22000
  . RO    : 0xffffff8df2d22000 - 0xffffff8f8c055000
  . GEN0  : 0xffffff8f8c055000 - 0xffffff94579ee000
  . GEN1  : 0xffffff94579ee000 - 0xffffff9923387000
  . GEN2  : 0xffffff9923387000 - 0xffffff9deed20000
  . GEN3  : 0xffffff9deed20000 - 0xffffffa2ba6ba000
  . DATA  : 0xffffffa2ba6ba000 - 0xffffffa91f388000
  Metadata: 0xffffff88d2e76000 - 0xffffff88f2e76000
  Bitmaps : 0xffffff88f2e76000 - 0xffffff88fee76000
  Extra   : 0 - 0

I've included a copy of the current EFI I am running, minus serial numbers of course. If this could be fixed, this machine would be perfect for running MacOS under OpenCore.

Any help or feedback is appreciated.

Thanks!

EFI.zip