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4e77ae3e10
linux/arch/x86/kernel
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Thomas Gleixner 4e77ae3e10 x86: Fix irq0 / local apic timer accounting 
The clock events merge introduced a change to the nmi watchdog code to
handle the not longer increasing local apic timer count in the
broadcast mode. This is fine for UP, but on SMP it pampers over a
stuck CPU which is not handling the broadcast interrupt due to the
unconditional sum up of local apic timer count and irq0 count.

To cover all cases we need to keep track on which CPU irq0 is
handled. In theory this is CPU#0 due to the explicit disabling of irq
balancing for irq0, but there are systems which ignore this on the
hardware level. The per cpu irq0 accounting allows us to remove the
irq0 to CPU0 binding as well.

Add a per cpu counter for irq0 and evaluate this instead of the global
irq0 count in the nmi watchdog code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2007-10-12 23:04:07 +02:00
..
acpi Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
cpu Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
cpufreq x86_64: move kernel/cpufreq 2007-10-11 11:17:06 +02:00
.gitignore i386: move kernel 2007-10-11 11:17:01 +02:00
alternative.c i386: move kernel 2007-10-11 11:17:01 +02:00
aperture_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
apic_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
apic_64.c x86_64: convert to clock events 2007-10-12 23:04:07 +02:00
apm_32.c Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
asm-offsets_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
asm-offsets_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
asm-offsets.c i386: move kernel 2007-10-11 11:17:01 +02:00
audit_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
bootflag.c i386: move kernel 2007-10-11 11:17:01 +02:00
bugs_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
cpuid.c i386: move kernel 2007-10-11 11:17:01 +02:00
crash_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
crash_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
crash_dump_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
crash_dump_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
doublefault_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
e820_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
e820_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
early_printk.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
early-quirks_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
efi_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
efi_stub_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
entry_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
entry_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
genapic_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
genapic_flat_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
geode_32.c x86: Geode Multi-Function General Purpose Timers support 2007-10-12 23:04:06 +02:00
head64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
head_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
head_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
hpet_32.c i386: prepare sharing the hpet code with x86_64 2007-10-12 23:04:06 +02:00
hpet_64.c x86_64: Consolidate tsc calibration 2007-10-12 23:04:06 +02:00
i386_ksyms_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
i387_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
i387_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
i8237.c i386: move kernel 2007-10-11 11:17:01 +02:00
i8253_32.c i386: prepare sharing the PIT code 2007-10-12 23:04:06 +02:00
i8259_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
i8259_64.c x86_64: convert to clock events 2007-10-12 23:04:07 +02:00
init_task_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
init_task_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
io_apic_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
io_apic_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
ioport_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
ioport_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
irq_32.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
irq_64.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
k8.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
kprobes_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
kprobes_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
ldt_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
ldt_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
machine_kexec_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
machine_kexec_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
Makefile x86_64: move kernel 2007-10-11 11:17:24 +02:00
Makefile_32 x86: Geode Multi-Function General Purpose Timers support 2007-10-12 23:04:06 +02:00
Makefile_64 x86_64: convert to clock events 2007-10-12 23:04:07 +02:00
mca_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
mce_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mce_amd_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mce_intel_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mfgpt_32.c x86: Geode MFGPT clock event device support 2007-10-12 23:04:06 +02:00
microcode.c i386: move kernel 2007-10-11 11:17:01 +02:00
module_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
module_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
mpparse_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
mpparse_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
msr.c i386: move kernel 2007-10-11 11:17:01 +02:00
nmi_32.c x86: Fix irq0 / local apic timer accounting 2007-10-12 23:04:06 +02:00
nmi_64.c x86: Fix irq0 / local apic timer accounting 2007-10-12 23:04:07 +02:00
numaq_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
paravirt_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
pci-calgary_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
pci-dma_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
pci-dma_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
pci-gart_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
pci-nommu_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
pci-swiotlb_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
pcspeaker.c i386: move kernel 2007-10-11 11:17:01 +02:00
pmtimer_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
process_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
process_64.c x86_64: prepare idle loop for dynamic ticks 2007-10-12 23:04:07 +02:00
ptrace_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
ptrace_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
quirks.c i386: move kernel 2007-10-11 11:17:01 +02:00
reboot_32.c Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
reboot_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
reboot_fixups_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
relocate_kernel_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
relocate_kernel_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
scx200_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
setup64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
setup_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
setup_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
sigframe_32.h i386: move kernel 2007-10-11 11:17:01 +02:00
signal_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
signal_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
smp_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
smp_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
smpboot_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
smpboot_64.c x86_64: convert to clock events 2007-10-12 23:04:07 +02:00
smpcommon_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
srat_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
stacktrace.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
summit_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
suspend_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
suspend_asm_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
sys_i386_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
sys_x86_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
syscall_64.c i386/x86_64: move headers to include/asm-x86 2007-10-11 11:20:03 +02:00
syscall_table_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
sysenter_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
tce_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
time_32.c x86: Fix irq0 / local apic timer accounting 2007-10-12 23:04:06 +02:00
time_64.c x86: Fix irq0 / local apic timer accounting 2007-10-12 23:04:07 +02:00
topology.c i386: move kernel 2007-10-11 11:17:01 +02:00
trampoline_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
trampoline_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
traps_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
traps_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
tsc_32.c Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2007-10-11 19:18:45 -07:00
tsc_64.c x86_64: Consolidate tsc calibration 2007-10-12 23:04:06 +02:00
tsc_sync.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
verify_cpu_64.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
vm86_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
vmi_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
vmiclock_32.c i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux_32.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vmlinux_64.lds.S x86_64: move kernel 2007-10-11 11:17:24 +02:00
vmlinux.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsmp_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
vsyscall_32.lds.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00
vsyscall-int80_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-note_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-sigreturn_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
vsyscall-sysenter_32.S i386: move kernel 2007-10-11 11:17:01 +02:00
x8664_ksyms_64.c x86_64: move kernel 2007-10-11 11:17:24 +02:00