Some machines, including ThinkPad T61, emit the following error message
early during boot:
CPU0: local APIC error 0x40
The message itself doesn't seem to be much of a problem. However,
every once in a while booting hangs just before that line. I've tracked
that down to call to AcpiHwWritePort() at
sys/contrib/dev/acpica/components/hardware/hwacpi.c:117:
switch (Mode)
{
case ACPI_SYS_MODE_ACPI:
/* BIOS should have disabled ALL fixed and GP events */
Status = AcpiHwWritePort (AcpiGbl_FADT.SmiCommand,
(UINT32) AcpiGbl_FADT.AcpiEnable, 8);
Any idea what might be going on?
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