Messages in this thread Patch in this message | | | Date | Fri, 21 Feb 2003 15:42:35 -0500 (EST) | From | Ion Badulescu <> | Subject | Re: UP local APIC is deadly on SMP Athlon |
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On Fri, 21 Feb 2003, Ion Badulescu wrote:
> Anyway, I'll keep on digging.
And this is what I found: eliminating two lines from APIC_init_uniprocessor() makes the problem go away.
diff -urNX diff_kernel_excludes linux-2.4.10-pre12/arch/i386/kernel/apic.c linux-2.4.10-pre11++/arch/i386/kernel/apic.c --- linux-2.4.10-pre12/arch/i386/kernel/apic.c Wed Feb 19 23:53:15 2003 +++ linux-2.4.10-pre11++/arch/i386/kernel/apic.c Fri Feb 21 15:37:06 2003 @@ -1087,9 +1087,6 @@ connect_bsp_APIC(); - phys_cpu_present_map = 1; - apic_write_around(APIC_ID, boot_cpu_id); - apic_pm_init2(); setup_local_APIC(); [patch against 2.4.10-pre12, but 2.4.21-pre4 is reasonably similar]
Ion
-- It is better to keep your mouth shut and be thought a fool, than to open it and remove all doubt.
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