Messages in this thread | | | Date | Tue, 23 Nov 2010 19:29:20 +0100 | Subject | Re: [PATCH] x86, perf, nmi: Disable perf if counters are not accessable | From | Sedat Dilek <> |
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On Tue, Nov 23, 2010 at 7:27 PM, Peter Zijlstra <peterz@infradead.org> wrote: > On Tue, 2010-11-23 at 19:21 +0100, Sedat Dilek wrote: >> Due to BIOS l(ocal)apic is not possible: >> >> # dmesg | grep -i apic >> [ 0.000000] Using APIC driver default >> [ 0.000000] Local APIC disabled by BIOS -- you can enable it with "lapic" >> [ 0.000000] APIC: disable apic facility >> [ 0.000000] APIC: switched to apic NOOP >> [ 0.008891] no APIC, boot with the "lapic" boot parameter to force-enable it. >> [ 0.036141] Local APIC not detected. Using dummy APIC emulation. > > Have you tried booting with "lapic" as the second last msg suggests you > do? >
Yes, I did try before there was [1], booting with "lapic" had no effect.
- Sedat -
[1] bugfix/x86/Skip-looking-for-ioapic-overrides-when-ioapics-are-not-present.patch -- 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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