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4f75d84127
linux/arch/x86/kernel
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Borislav Petkov 4f75d84127 x86, mce: Fix mce_start_timer semantics 
So mce_start_timer() has a 'cpu' argument which is supposed to mean to
start a timer on that cpu. However, the code currently starts a timer on
the *current* cpu the function runs on and causes the sanity-check in
mce_timer_fn to fire:

	WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/mcheck/mce.c:1286 mce_timer_fn

because it is running on the wrong cpu.

This was triggered by Prarit Bhargava <prarit@redhat.com> by offlining
all the cpus in succession.

Then, we were fiddling with the CMCI storm settings when starting the
timer whereas there's no need for that - if there's storm happening
on this newly restarted cpu, we're going to be in normal CMCI mode
initially and then when the CMCI interrupt starts firing, we're going to
go to the polling mode with the timer real soon.

Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Prarit Bhargava <prarit@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Reviewed-by: Chen, Gong <gong.chen@linux.intel.com>
Link: http://lkml.kernel.org/r/1387722156-5511-1-git-send-email-prarit@redhat.com
2014-01-12 15:22:25 +01:00
..
acpi Merge branch 'acpica' 2013-11-07 19:21:11 +01:00
apic Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-19 10:48:19 -08:00
cpu x86, mce: Fix mce_start_timer semantics 2014-01-12 15:22:25 +01:00
kprobes Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-09-04 08:42:44 -07:00
.gitignore
alternative.c lockdep, x86/alternatives: Drop ancient lockdep fixup message 2013-09-28 10:09:41 +02:00
amd_gart_64.c x86, mm: use pfn_range_is_mapped() with gart 2012-11-17 11:59:10 -08:00
amd_nb.c x86, amd_nb: Clarify F15h, model 30h GART and L3 support 2013-08-12 15:30:08 +02:00
apb_timer.c intel_mid: Renamed *mrst* to *intel_mid* 2013-10-17 16:40:47 -07:00
aperture_64.c x86/mm/gart: Drop unnecessary check 2013-04-16 10:54:40 +02:00
apm_32.c x86, asmlinkage, apm: Make APM data structure used from assembler visible 2013-08-06 14:20:20 -07:00
asm-offsets_32.c x86: Get rid of ->hard_math and all the FPU asm fu 2013-06-06 14:32:04 -07:00
asm-offsets_64.c x86, gdt, hibernate: Store/load GDT for hibernate path. 2013-05-02 11:27:35 -07:00
asm-offsets.c sched, x86: Provide a per-cpu preempt_count implementation 2013-09-25 14:07:57 +02:00
audit_64.c
bootflag.c
check.c
cpuid.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
crash_dump_32.c
crash_dump_64.c
crash.c x86/apic: Disable I/O APIC before shutdown of the local APIC 2013-11-07 10:12:37 +01:00
devicetree.c Merge remote-tracking branch 'grant/devicetree/next' into for-next 2013-11-07 10:34:46 -06:00
doublefault.c x86: Extend #DF debugging aid to 64-bit 2013-05-13 13:42:44 -07:00
dumpstack_32.c dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
dumpstack_64.c dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
dumpstack.c x86/dumpstack: Fix printk_address for direct addresses 2013-11-12 21:06:06 +01:00
e820.c x86: avoid remapping data in parse_setup_data() 2013-08-13 23:29:19 -07:00
early_printk.c Merge branch 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-12 11:12:22 +09:00
early-quirks.c x86/early quirk: use gen6 stolen detection for VLV 2013-11-14 09:32:11 +01:00
entry_32.S Merge branch 'x86-trace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-14 16:25:10 +09:00
entry_64.S Merge branch 'x86-trace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-14 16:25:10 +09:00
ftrace.c ftrace/x86: skip over the breakpoint for ftrace caller 2013-11-05 16:01:47 -05:00
head32.c intel_mid: Renamed *mrst* to *intel_mid* 2013-10-17 16:40:47 -07:00
head64.c x86, trace: Register exception handler to trace IDT 2013-11-08 14:15:45 -08:00
head_32.S Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-09-04 09:11:16 -07:00
head_64.S x86: Make sure IDT is page aligned 2013-07-16 15:14:48 -07:00
head.c x86: Make sure we can boot in the case the BDA contains pure garbage 2013-02-27 13:38:57 -08:00
hpet.c x86, hpet: Introduce x86_msi_ops.setup_hpet_msi 2013-01-28 10:48:30 +01:00
hw_breakpoint.c ptrace/x86: flush_ptrace_hw_breakpoint() shoule clear the virtual debug registers 2013-07-09 10:33:26 -07:00
i386_ksyms_32.c sched, x86: Optimize the preempt_schedule() call 2013-09-25 14:23:07 +02:00
i387.c x86: move fpu_counter into ARCH specific thread_struct 2013-11-13 12:09:13 +09:00
i8237.c
i8253.c
i8259.c x86/irq: Correct comment about i8259 initialization 2013-09-04 07:46:04 +02:00
io_delay.c
ioport.c x86: get rid of pt_regs argument of iopl(2) 2013-02-03 18:16:24 -05:00
irq_32.c Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-12 10:20:12 +09:00
irq_64.c irq: Consolidate do_softirq() arch overriden implementations 2013-10-01 12:53:25 +02:00
irq_work.c x86, asmlinkage: Make all interrupt handlers asmlinkage / __visible 2013-08-06 14:18:23 -07:00
irq.c x86, asmlinkage: Make all interrupt handlers asmlinkage / __visible 2013-08-06 14:18:23 -07:00
irqinit.c KVM: VMX: Register a new IPI for posted interrupt 2013-04-16 16:32:39 -03:00
jump_label.c x86/jump_label: expect default_nop if static_key gets enabled on boot-up 2013-10-19 19:45:35 -04:00
kdebugfs.c
kgdb.c kgdb,x86: fix warning about unused variable 2012-10-12 06:37:34 -05:00
kvm.c x86, trace: Register exception handler to trace IDT 2013-11-08 14:15:45 -08:00
kvmclock.c pvclock: detect watchdog reset at pvclock read 2013-11-06 09:48:43 +02:00
ldt.c
machine_kexec_32.c
machine_kexec_64.c x86, kexec, 64bit: Only set ident mapping for ram. 2013-01-29 15:26:35 -08:00
Makefile sched, x86: Optimize the preempt_schedule() call 2013-09-25 14:23:07 +02:00
microcode_amd_early.c x86, microcode, AMD: Fix early microcode loading 2013-08-12 18:32:45 +02:00
microcode_amd.c x86/microcode/amd: Tone down printk(), don't treat a missing firmware file as an error 2013-11-12 22:03:49 +01:00
microcode_core_early.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
microcode_core.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
microcode_intel_early.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
microcode_intel_lib.c x86/microcode_intel_lib.c: Early update ucode on Intel's CPU 2013-01-31 13:19:14 -08:00
microcode_intel.c x86/microcode_intel.h: Define functions and macros for early loading ucode 2013-01-31 13:18:50 -08:00
mmconf-fam10h_64.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
module.c mm/arch: use NUMA_NO_NODE 2013-11-13 12:09:05 +09:00
mpparse.c
msr.c x86, msr: Use file_inode(), not f_mapping->host 2013-10-08 12:01:29 -07:00
nmi_selftest.c
nmi.c perf/x86: Fix NMI measurements 2013-10-29 12:01:20 +01:00
paravirt_patch_32.c
paravirt_patch_64.c
paravirt-spinlocks.c x86, ticketlock: Add slowpath logic 2013-08-09 07:54:00 -07:00
paravirt.c x86, paravirt: Remove duplicate definition for DEF_NATIVE 2013-09-04 09:46:43 -07:00
pci-calgary_64.c
pci-dma.c x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES 2013-01-24 17:34:18 +01:00
pci-iommu_table.c
pci-nommu.c
pci-swiotlb.c
pcspeaker.c
perf_regs.c perf: Fix off by one test in perf_reg_value() 2012-09-19 17:08:40 +02:00
preempt.S sched, x86: Optimize the preempt_schedule() call 2013-09-25 14:23:07 +02:00
probe_roms.c x86/pci/probe_roms: Add missing __iomem annotation to pci_map_biosrom() 2012-09-05 10:52:25 +02:00
process_32.c x86: move fpu_counter into ARCH specific thread_struct 2013-11-13 12:09:13 +09:00
process_64.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-14 16:55:56 +09:00
process.c sched, idle: Fix the idle polling state logic 2013-09-25 13:53:10 +02:00
ptrace.c ptrace/x86: cleanup ptrace_set_debugreg() 2013-07-09 10:33:26 -07:00
pvclock.c hung_task: add method to reset detector 2013-11-06 09:49:02 +02:00
quirks.c x86, quirks: Shut-up a long-standing gcc warning 2013-04-02 16:03:34 -07:00
reboot_fixups_32.c
reboot.c Merge branch 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-12 11:33:38 +09:00
relocate_kernel_32.S x86, asm, cleanup: Replace open-coded control register values with symbolic 2013-06-25 16:26:06 -07:00
relocate_kernel_64.S x86, reloc: Use xorl instead of xorq in relocate_kernel_64.S 2013-06-20 21:30:04 -07:00
resource.c
rtc.c Merge branch 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-12 11:12:22 +09:00
setup_percpu.c
setup.c x86, acpi, crash, kdump: do reserve_crashkernel() after SRAT is parsed. 2013-11-13 12:09:08 +09:00
signal.c Merge branch 'x86-smap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-09-04 11:08:32 -07:00
smp.c x86, asmlinkage: Make all interrupt handlers asmlinkage / __visible 2013-08-06 14:18:23 -07:00
smpboot.c ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00
stacktrace.c
step.c ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL 2013-01-22 10:08:00 -08:00
sys_x86_64.c x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member 2013-08-22 10:19:35 -07:00
syscall_32.c x86, asmlinkage: Make syscall tables visible 2013-08-06 14:20:18 -07:00
syscall_64.c x86, asmlinkage: Make syscall tables visible 2013-08-06 14:20:18 -07:00
sysfb_efi.c x86: sysfb: move EFI quirks from efifb to sysfb 2013-08-02 16:17:47 -07:00
sysfb_simplefb.c x86/simplefb: Mark framebuffer mem-resources as IORESOURCE_BUSY to avoid bootup warning 2013-10-03 07:51:11 +02:00
sysfb.c x86: sysfb: move EFI quirks from efifb to sysfb 2013-08-02 16:17:47 -07:00
tboot.c x86 / tboot / ACPI: Fail extended mode reduced hardware sleep 2013-07-31 14:25:51 +02:00
tce_64.c
test_nx.c
test_rodata.c
time.c
tls.c make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect 2013-03-03 22:58:33 -05:00
tls.h
topology.c hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock() 2013-09-30 19:55:51 +02:00
trace_clock.c tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
tracepoint.c x86: Make sure IDT is page aligned 2013-07-16 15:14:48 -07:00
traps.c Merge branch 'x86-trace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-14 16:25:10 +09:00
tsc_sync.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
tsc.c perf/x86: Add ability to calculate TSC from perf sample timestamps 2013-07-23 12:17:45 +02:00
uprobes.c uretprobes/x86: Hijack return address 2013-04-13 15:31:55 +02:00
verify_cpu.S
vm86_32.c x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...) 2013-05-02 20:36:32 -04:00
vmlinux.lds.S x86: intel-mid: Add section for sfi device table 2013-10-17 16:41:04 -07:00
vsmp_64.c
vsyscall_64.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
vsyscall_emu_64.S
vsyscall_trace.h
x86_init.c PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq() 2013-11-06 16:32:19 -07:00
x8664_ksyms_64.c sched, x86: Optimize the preempt_schedule() call 2013-09-25 14:23:07 +02:00
xsave.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00