Messages in this thread Patch in this message | | | Date | Thu, 3 Dec 2009 15:52:44 +0100 | From | Mikael Pettersson <> | Subject | [PATCH 2.6.32] x86: enable lapic nmi watchdog on AMD Family 11h |
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The x86 lapic nmi watchdog does not recognize AMD Family 11h, resulting in:
NMI watchdog: CPU not supported
As far as I can see from available documentation (the BKDM), family 11h looks identical to family 10h as far as the PMU is concerned.
Extending the check to accept family 11h results in:
Testing NMI watchdog ... OK.
I've been running with this change on a Turion X2 Ultra ZM-82 laptop for a couple of weeks now without problems.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> ---
diff -rupN linux-2.6.32/arch/x86/kernel/cpu/perfctr-watchdog.c linux-2.6.32.x86-amd-fam11-nmi/arch/x86/kernel/cpu/perfctr-watchdog.c --- linux-2.6.32/arch/x86/kernel/cpu/perfctr-watchdog.c 2009-12-03 12:38:32.000000000 +0100 +++ linux-2.6.32.x86-amd-fam11-nmi/arch/x86/kernel/cpu/perfctr-watchdog.c 2009-12-03 12:47:59.000000000 +0100 @@ -712,7 +712,7 @@ static void probe_nmi_watchdog(void) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15 && - boot_cpu_data.x86 != 16) + boot_cpu_data.x86 != 16 && boot_cpu_data.x86 != 17) return; wd_ops = &k7_wd_ops; break;
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