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Commit e67465f1 authored by Maciej W. Rozycki's avatar Maciej W. Rozycki Committed by Ingo Molnar
Browse files

x86: I/O APIC: clean up after a fasteoi failure 



Disable the 8259A when routing of the timer interrupt through the chip to
the local APIC of the primary processor has failed.

Signed-off-by: default avatarMaciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent ecd29476

arch/x86/kernel/io_apic_32.c

+1 −0
Original line number Diff line number Diff line
@@ -2228,6 +2228,7 @@ static inline void __init check_timer(void) 
		printk(" works.\n");

		goto out;

	}

	disable_8259A_irq(0);

	apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector);

	printk(" failed.\n");

arch/x86/kernel/io_apic_64.c

+1 −0
Original line number Diff line number Diff line
@@ -1729,6 +1729,7 @@ static inline void __init check_timer(void) 
		apic_printk(APIC_VERBOSE," works.\n");

		goto out;

	}

	disable_8259A_irq(0);

	apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | cfg->vector);

	apic_printk(APIC_VERBOSE," failed.\n");