Re: [ACPI x86_64] 2.6.1-rc{1,2} hang while booting on Sun v20zaka Newisys 2100

From: Shantanu Goel
Date: Thu Apr 22 2004 - 15:44:40 EST

Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
SMP mptable: bad signature [<3>BIOS bug, MP table errors detected!...
... disabling SMP support. (tell your hw vendor)

Broken BIOS/MPS tables own this failure.
See if you can disable MPS in the BIOS/SETUP.
that is, after you verify you've got the latest BIOS...

But that still does not explain why RedHat AS3 works on the same machine with the same BIOS settings without specifying any acpi related parameters. As far as I can tell, AS3 is using an older version of the ACPI code. It reports "ACPI: Subsystem revision 20030619" when booting. So barring some hack RedHat has in there, clearly something has changed along the way to break things on this machine...


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