Messages in this thread |  | | From | "Grover, Andrew" <> | Subject | RE: [PATCH] 2.5.31 Summit NUMA patch with dynamic IRQ balancing | Date | Mon, 26 Aug 2002 00:05:24 -0700 |
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> From: James Cleverdon [mailto:jamesclv@us.ibm.com] > > What happens when you use the FULL ACPI support? I suspect > that you really > > do want the interpreter, in order to evaluate _PRTs properly.
> Bingo! With full ACPI turned on, the system does indeed > boot. The extra I/O > APIC entries are being programmed from the PRT. > > (Call chain is: pci_acpi_init --> acpi_pci_irq_init --> > mp_parse_prt --> > io_apic_set_pci_routing) > > So, given that quite a number of our customers would like to run with > hyperthreading turned on, but do not want full ACPI, what is > the right thing > to do in the HT-only case? Add extra code to process the > PRT? Fall back on > MPS's IRQ records? Something else entirely?
The solution is ACPI. Full ACPI. What is the problem? I have devoted too much time already to make hybrid ACPI/MPS combos work, but that will never be the right solution.
Please have your customers email me privately and tell me why ~100KB of mem on a 1GB+ system is something us engineers should spend our valuable time hacking around, when the correct solution already is implemented and *works*.
Regards -- Andy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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