Messages in this thread Patch in this message | | | From | Mikael Pettersson <> | Date | Wed, 17 Apr 2002 12:37:01 +0200 | Subject | Re: Cannot compile 2.4.19-pre7 with APIC without IOAPIC |
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Pavel Roskin writes: > Hello! > > I'm getting this error when compiling 2.4.19-pre7: > > init/main.o: In function `smp_init': > init/main.o(.text.init+0x5e1): undefined reference to `skip_ioapic_setup' > arch/i386/kernel/kernel.o: In function `broken_pirq': > arch/i386/kernel/kernel.o(.text.init+0x3427): undefined reference to > `skip_ioapic_setup' > > Processor is AMD K7, SMP is disabled, APIC is enabled, IOAPIC is disabled. > > It turns out that skip_ioapic_setup is defined in > arch/i386/kernel/io_apic.c, which is only compiled when CONFIG_X86_IO_APIC > is defined, but it's used in init/main.c if SMP is disabled and APIC is > enabled.
Known problem. Apply the patch below.
/Mikael
--- linux-2.4.19-pre7/arch/i386/kernel/dmi_scan.c.~1~ Tue Apr 16 23:33:53 2002 +++ linux-2.4.19-pre7/arch/i386/kernel/dmi_scan.c Tue Apr 16 23:34:15 2002 @@ -362,7 +362,7 @@ printk(KERN_INFO " *** If you see IRQ problems, in paticular SCSI resets and hangs at boot\n"); printk(KERN_INFO " *** contact your hardware vendor and ask about updates.\n"); printk(KERN_INFO " *** Building an SMP kernel may evade the bug some of the time.\n"); -#ifdef CONFIG_X86_UP_APIC +#ifdef CONFIG_X86_IO_APIC skip_ioapic_setup = 0; #endif return 0; --- linux-2.4.19-pre7/init/main.c.~1~ Tue Apr 16 23:33:56 2002 +++ linux-2.4.19-pre7/init/main.c Tue Apr 16 23:34:54 2002 @@ -293,11 +293,9 @@ #ifndef CONFIG_SMP #ifdef CONFIG_X86_LOCAL_APIC -extern int skip_ioapic_setup; static void __init smp_init(void) { - if (!skip_ioapic_setup) - APIC_init_uniprocessor(); + APIC_init_uniprocessor(); } #else #define smp_init() do { } while (0) - 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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