> From: Dale Ghent <da...@elemental.org> > Date: Wed, 30 Dec 2015 15:34:14 -0500 > > I managed to get a slow-motion video of the console and transcribe > the first several lines of CPU setup and probing from a verbose > boot. It seems that the kernel isn't finding a lot of stuff here. > > >>> bios probe won > bios0 at mainbus0: SMBIUOS rev. 2.8 @ 0xed8b0 (55 entries) > bios0: vendor American Megatrends Inc. version "1.0b" date 09/09/2015 > bios0: Supermicro X10SDV-8C-TLN4F > >>> probing for mpbios0 > >>> mpbios probe returned 0 > >>> probing for acpi0 > >>> acpi probe returned 1 > >>> acpi probe won > acpi0 at bios0: rev 2 > acpi0: tables DSDT FACP APIC FPDT FIDT SPMI NCFG UEFI HPET WDDT SSDT BGRT > SSDT PRAD SMAR HEST BERT ERST EINJ > >>> probing for acpiec* > >>> acpiec probe returned 0 > >>> probing for acpimadt0 > >>> acpimadt probe returned 0 > >>> probing for acpiprt* > >>> acpiprt returned 0 > >>> no winning probe > >>> probing for acpiec* > >>> acpiec probe returned 0 > >>> probing for acpimadt0 > >>> acpimadt probe returned 0 > >>> probing for acpiprt* > >>> acpiprt returned 0 > >>> no winning probe > >>> probing for acpiec* > >>> acpiec probe returned 0 > >>> probing for acpimadt0 > >>> acpimadt probe returned 0 > >>> probing for acpiprt* > >>> acpiprt returned 0 > >>> acpimadt0 probe won > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > >>> probing for cpu0 > >>> cpu probe returned 1 > >>> probing for ioapic* > >>> ioapic probe returned 0 > >>> probing for efifb0 > >>> efifb probe returned 0 > >>> probing for pci* > >>> pci probe returned 0 > >>> probing for isa0 > >>> isa probe returned 0 > >>> cpu probe won > cpu0 at mainbus0: apid 0 (application processor) > cpu0: not started
Ok, that's not good. Typically cpu0 is the boot processor and not an application processor. And our kernel code might rely on that. As a workaround, you could try enabling only a single core in the BIOS. The user manual for these SuperMicro machines seems to suggest that would be possible.