Date: Wed, 21 May 2008 10:20:53 -0700 From: Bob Frazier <bobf@mrp3.com> To: gavin@freebsd.org Cc: freebsd-bugs@freebsd.org Subject: Re: kern/123140: SMP boot causes slow KB, ATA drives not detected Message-ID: <483459F5.1040004@mrp3.com>
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I've added some additional information to the bug report regarding ACPI tables and boot without ACPI. If you happen to know where I can get some technical documentation on the NVidia chipset and perhaps even the board wiring (to see if the ACPI tables are just plain wrong) please let me know. For now everything points to an improperly set up APIC, which either doesn't respond to the interrupts from the hardware, or responds incorrectly. I'm concerned about the timer because I read some comments on-line regarding the NVidia APIC and the use of interrupt 2 for the timer (and incorrect ACPI tables in THAT particular case, early 2007 as I recall). If this is the case with my board (bad table) I can attempt to work around it using the acpidump utility and the appropriate env vars to load a 'fixed' ACPI table. I hope this information is helpful in resolving this particular problem. I'm having some difficulting using kgdb at the moment since it doesn't seem to like my uplcom-based USB/Serial adaptor (it tends to crash/hang the machine running kgdb as a client and gets 'out of sync' with the serial data stream). When I can get this working I'll try to localize the problem.
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