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Reboot loop using KVM extender
 

Reboot loop using KVM extender  

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(@llamafilm)
Active Member
Joined: 1 year ago
 

Hello.  I wanted to share my experience using @goalque's patch with a MacPro trashcan, KVM extender, Sonnet eGFX, Vega64 and see if anyone knows a solution to this problem.  The KVM extender is connected DVI to Mac Pro internal HDMI with an adapter.  A second monitor can be connected to the Vega and it will light up once I reach the login screen, but one monitor must be connected to the internal HDMI.

It seems like the Mac sometimes takes a few seconds after power on to recognize that the DVI monitor is connected.  To replicate this, I remove the extender and just connect an HDMI monitor directly to the Mac about 5 seconds after hearing the startup chime.  Now the monitor shows black but I can sometimes blindly press <q> <enter> and the monitor will light up at the login screen and everything works.

Other times it doesn't work so well, and I can't figure out what's different.  But on some boots, after pressing <q> <enter> at a black screen, it reboots.  Then it's stuck in an endless loop of <q> screen, followed by Apple logo, then reboot.  To fix it I have to force power off, then turn it back on.  After this, Mojave always greets me with the following error report.  Any ideas how to fix this?  Essentially I want to be able to boot headless, and connect the monitor afterward.  I'm running 10.14.3 with @goalque's patch version 1.0.5. 

Anonymous UUID: 247C578E-18B9-00AD-0290-5977A55E1A23

Tue Feb 26 12:34:11 2019

*** MCA Error Report ***
CPU Machine Check Architecture Error Dump (CPU: Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz, CPUID: 0x306E4)
Core: 0 
IA32_MC17_STATUS=0xFA2000000018110A
IA32_MC17_CTL=0x0
IA32_MC17_MISC=0xECF00013C0003886


*** Device Tree ***
{
"pcie_cfg_base" : "0xe0000000",
"pci_devices" :
{
"0x0" : "DMI2@0",
"0x8000" : "[email protected]",
"0x10000" : "GFXA@2",
"0x18000" : "GFXB@3",
"0x20000" : "CBD0@4",
"0x21000" : "CBD1@4,1",
"0x22000" : "CBD2@4,2",
"0x23000" : "CBD3@4,3",
"0x24000" : "CBD4@4,4",
"0x25000" : "CBD5@4,5",
"0x26000" : "CBD6@4,6",
"0x27000" : "CBD7@4,7",
"0x28000" : "IOC0@5",
"0x29000" : "IOC1@5,1",
"0x2a000" : "IOC2@5,2",
"0x2c000" : "IOC4@5,4",
"0x88000" : "VMS0@11",
"0xb0000" : "HECI@16",
"0xd8000" : "[email protected]",
"0xe0000" : "[email protected]",
"0xe1000" : "[email protected],1",
"0xe2000" : "[email protected],2",
"0xe4000" : "[email protected],4",
"0xe8000" : "[email protected]",
"0xf0000" : "[email protected]",
"0xf8000" : "[email protected]",
"0xfa000" : "pci8086,[email protected],2",
"0xfb000" : "[email protected],3",
"0x1000000" : "[email protected]/IOPP/[email protected]",
"0x200000" : "[email protected]/IOPP/[email protected]",
"0x600000" : "[email protected]/IOPP/[email protected]",
"0x601000" : "[email protected]/IOPP/[email protected],1",
"0x201000" : "[email protected]/IOPP/[email protected],1",
"0xd00000" : "[email protected],2/IOPP/ARPT@0",
"0xb00000" : "[email protected]/IOPP/[email protected]",
"0xe00000" : "[email protected],4/IOPP/SSD0@0",
"0xc00000" : "[email protected],1/IOPP/ETH0@0",
"0x1108000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0x1110000" : "[email protected]/IOPP/[email protected]/IOPP/BR11@2",
"0x1140000" : "[email protected]/IOPP/[email protected]/IOPP/BR14@8",
"0x1148000" : "[email protected]/IOPP/[email protected]/IOPP/BR12@9",
"0x1150000" : "[email protected]/IOPP/[email protected]/IOPP/BR10@A",
"0x1300000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0xb100000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0x6300000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0x1400000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0xb200000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB0@0",
"0x6400000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB0@0",
"0xb218000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB1@3",
"0x1500000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB0@0",
"0x6418000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB1@3",
"0xb220000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB2@4",
"0x6420000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB2@4",
"0x1518000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB1@3",
"0xb228000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB3@5",
"0x1520000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB2@4",
"0x6428000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB3@5",
"0xb230000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB4@6",
"0x1528000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB3@5",
"0x6430000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB4@6",
"0x1530000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/DSB4@6",
"0x6500000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0xb300000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]",
"0x1600000" : "[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]"
},
"device_mmio" :
{
"PCI0@0" :
[
{ "a" : "0xcf8", "s" : "0x8" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/BR00@0" :
[
{ "a" : "0xa0900000", "s" : "0x40000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/XHC1@0" :
[
{ "a" : "0xa0a00000", "s" : "0x10000" },
{ "a" : "0xa0a10000", "s" : "0x1000" },
{ "a" : "0xa0a11000", "s" : "0x1000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/NHI1@0" :
[
{ "a" : "0xcae00000", "s" : "0x40000" },
{ "a" : "0xcae40000", "s" : "0x1000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/NHI2@0" :
[
{ "a" : "0xb5d00000", "s" : "0x40000" },
{ "a" : "0xb5d40000", "s" : "0x1000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/[email protected]/IOPP/NHI0@0" :
[
{ "a" : "0xa0b00000", "s" : "0x40000" },
{ "a" : "0xa0b40000", "s" : "0x1000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/GFX1@0" :
[
{ "a" : "0xfff90000000", "s" : "0x10000000" },
{ "a" : "0xa0700000", "s" : "0x40000" },
{ "a" : "0xa0740000", "s" : "0x20000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/HDAD@0,1" :
[
{ "a" : "0xa0760000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/GFX2@0" :
[
{ "a" : "0xfff80000000", "s" : "0x10000000" },
{ "a" : "0xa0600000", "s" : "0x40000" },
{ "a" : "0xa0640000", "s" : "0x20000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/HDAU@0,1" :
[
{ "a" : "0xa0660000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected]" :
[
{ "a" : "0xfffa0220000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],1" :
[
{ "a" : "0xfffa021c000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],2" :
[
{ "a" : "0xfffa0218000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],3" :
[
{ "a" : "0xfffa0214000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],4" :
[
{ "a" : "0xfffa0210000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],5" :
[
{ "a" : "0xfffa020c000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],6" :
[
{ "a" : "0xfffa0208000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],7" :
[
{ "a" : "0xfffa0204000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected],4" :
[
{ "a" : "0xa0826000", "s" : "0x1000" }
],
"[email protected]/AppleACPIPCI/[email protected]" :
[
{ "a" : "0xfffa0224100", "s" : "0x10" }
],
"[email protected]/AppleACPIPCI/[email protected]" :
[
{ "a" : "0xfffa0200000", "s" : "0x4000" }
],
"[email protected]/AppleACPIPCI/[email protected]/IOPP/ETH1@0" :
[
{ "a" : "0xfffa0100000", "s" : "0x10000" },
{ "a" : "0xfffa0110000", "s" : "0x10000" }
],
"[email protected]/AppleACPIPCI/[email protected],1/IOPP/ETH0@0" :
[
{ "a" : "0xfffa0000000", "s" : "0x10000" },
{ "a" : "0xfffa0010000", "s" : "0x10000" }
],
"[email protected]/AppleACPIPCI/[email protected],2/IOPP/ARPT@0" :
[
{ "a" : "0xa0200000", "s" : "0x8000" },
{ "a" : "0xa0000000", "s" : "0x200000" }
],
"[email protected]/AppleACPIPCI/[email protected],4/IOPP/SSD0@0" :
[
{ "a" : "0xa0500000", "s" : "0x2000" }
],
"[email protected]/AppleACPIPCI/[email protected]" :
[
{ "a" : "0xa0827800", "s" : "0x400" }
],
"[email protected]/AppleACPIPCI/pci8086,[email protected],2" :
[
{ "a" : "0xa0827000", "s" : "0x800" }
],
"[email protected]/AppleACPIPCI/[email protected],3" :
[
{ "a" : "0xfffa0224000", "s" : "0x100" }
],
"XRES" :
[
{ "a" : "0xdfffa000", "s" : "0x1000" },
{ "a" : "0xdfff8000", "s" : "0x1000" }
],
"APIC" :
[
{ "a" : "0xfec00000", "s" : "0x100000" }
],
"DMAC" :
[
{ "a" : "0x0", "s" : "0x20" },
{ "a" : "0x81", "s" : "0x11" },
{ "a" : "0x93", "s" : "0xd" },
{ "a" : "0xc0", "s" : "0x20" }
],
"FWHD" :
[
{ "a" : "0xff000000", "s" : "0x1000000" }
],
"HPET" :
[
{ "a" : "0xfed00000", "s" : "0x400" }
],
"IPIC" :
[
{ "a" : "0x20", "s" : "0x2" },
{ "a" : "0x24", "s" : "0x2" },
{ "a" : "0x28", "s" : "0x2" },
{ "a" : "0x2c", "s" : "0x2" },
{ "a" : "0x30", "s" : "0x2" },
{ "a" : "0x34", "s" : "0x2" },
{ "a" : "0x38", "s" : "0x2" },
{ "a" : "0x3c", "s" : "0x2" },
{ "a" : "0xa0", "s" : "0x2" },
{ "a" : "0xa4", "s" : "0x2" },
{ "a" : "0xa8", "s" : "0x2" },
{ "a" : "0xac", "s" : "0x2" },
{ "a" : "0xb0", "s" : "0x2" },
{ "a" : "0xb4", "s" : "0x2" },
{ "a" : "0xb8", "s" : "0x2" },
{ "a" : "0xbc", "s" : "0x2" },
{ "a" : "0x4d0", "s" : "0x2" }
],
"MATH" :
[
{ "a" : "0xf0", "s" : "0x1" }
],
"LDRC" :
[
{ "a" : "0x2e", "s" : "0x2" },
{ "a" : "0x4e", "s" : "0x2" },
{ "a" : "0x61", "s" : "0x1" },
{ "a" : "0x63", "s" : "0x1" },
{ "a" : "0x65", "s" : "0x1" },
{ "a" : "0x67", "s" : "0x1" },
{ "a" : "0x80", "s" : "0x1" },
{ "a" : "0x92", "s" : "0x1" },
{ "a" : "0xb2", "s" : "0x2" },
{ "a" : "0x1000", "s" : "0x10" },
{ "a" : "0x400", "s" : "0x80" },
{ "a" : "0x800", "s" : "0x80" }
],
"RTC" :
[
{ "a" : "0x70", "s" : "0x8" }
],
"TIMR" :
[
{ "a" : "0x40", "s" : "0x4" },
{ "a" : "0x50", "s" : "0x4" }
],
"SMC" :
[
{ "a" : "0x300", "s" : "0x20" },
{ "a" : "0xfef00000", "s" : "0x10000" }
],
"EC" :
[
{ "a" : "0x62", "s" : "0x1" },
{ "a" : "0x66", "s" : "0x1" }
]
}
}



EOF
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This topic was modified 9 months ago

Testing MacPro6,1 with Vega64 in Sonnet eGFX on Mojave


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(@llamafilm)
Active Member
Joined: 1 year ago
 

Has anyone else tried booting headless or with a KVM extender?

Testing MacPro6,1 with Vega64 in Sonnet eGFX on Mojave


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