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linux/include/asm-i386
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Ingo Molnar 6ebf622b25 [PATCH] disable NMI watchdog by default 
there's a new NMI watchdog related problem: KVM crashes on certain
bzImages because ... we enable the NMI watchdog by default (even if the
user does not ask for it) , and no other OS on this planet does that so
KVM doesnt have emulation for that yet. So KVM injects a #GP, which
crashes the Linux guest:

 general protection fault: 0000 [#1]
 PREEMPT SMP
 Modules linked in:
 CPU:    0
 EIP:    0060:[<c011a8ae>]    Not tainted VLI
 EFLAGS: 00000246   (2.6.20-rc5-rt0 #3)
 EIP is at setup_apic_nmi_watchdog+0x26d/0x3d3

and no, i did /not/ request an nmi_watchdog on the boot command line!

Solution: turn off that darn thing! It's a debug tool, not a 'make life
harder' tool!!

with this patch the KVM guest boots up just fine.

And with this my laptop (Lenovo T60) also stopped its sporadic hard
hanging (sometimes in acpi_init(), sometimes later during bootup,
sometimes much later during actual use) as well. It hung with both
nmi_watchdog=1 and nmi_watchdog=2, so it's generally the fact of NMI
injection that is causing problems, not the NMI watchdog variant, nor
any particular bootup code.

[ NMI breaks on some systems, esp in combination with SMM -Arjan ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-05 08:23:51 -08:00
..
mach-bigsmp
mach-default [PATCH] clockevents: i386 drivers 2007-02-16 08:13:59 -08:00
mach-es7000 ACPICA: Remove duplicate table definitions (non-conflicting), cont 2007-02-02 21:14:29 -05:00
mach-generic
mach-numaq
mach-summit [PATCH] i386: Fix compilation with UP genericarch 2006-11-28 20:12:59 +01:00
mach-visws [PATCH] visws build fix 2006-10-28 11:30:52 -07:00
mach-voyager [PATCH] clockevents: i386 drivers 2007-02-16 08:13:59 -08:00
8253pit.h
a.out.h
acpi.h ACPI: cleanup: make disable_acpi() valid w/o CONFIG_ACPI 2007-02-13 00:09:13 -05:00
agp.h
alternative-asm.i Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
alternative.h [PATCH] paravirt: Patch inline replacements for paravirt intercepts 2006-12-07 02:14:08 +01:00
apic.h [PATCH] i386 rework local apic timer calibration 2007-02-16 08:13:59 -08:00
apicdef.h x86_64: Remove stale lapic definition from apicdef.h 2006-04-01 22:50:03 -05:00
arch_hooks.h IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
atomic.h [PATCH] Numerous fixes to kernel-doc info in source files. 2007-02-11 10:51:32 -08:00
auxvec.h
bitops.h [PATCH] Numerous fixes to kernel-doc info in source files. 2007-02-11 10:51:32 -08:00
boot.h [PATCH] i386: Restore CONFIG_PHYSICAL_START option 2007-01-05 23:55:23 -08:00
bug.h [PATCH] Generic BUG for i386 2006-12-08 08:28:39 -08:00
bugs.h [PATCH] i386: improve sched_clock() on i686 2007-02-13 13:26:22 +01:00
byteorder.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cacheflush.h [PATCH] Optimize D-cache alias handling on fork 2006-12-13 09:27:08 -08:00
checksum.h [NET]: I386 checksum annotations and cleanups. 2006-12-02 21:23:19 -08:00
cpu.h [PATCH] i386: introduce the mechanism of disabling cpu hotplug control 2006-12-07 02:14:10 +01:00
cpufeature.h [PATCH] i386: i386 add Intel BTS cpufeature bit and detection (take 2) 2006-12-07 02:14:11 +01:00
cputime.h
current.h [PATCH] i386: Implement "current" with the PDA 2006-12-07 02:14:03 +01:00
debugreg.h
delay.h [PATCH] vmi: paravirt drop udelay op 2007-03-05 07:57:52 -08:00
desc.h [PATCH] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.c 2007-02-13 13:26:26 +01:00
device.h ACPI: Change ACPI to use dev_archdata instead of firmware_data 2006-12-01 14:52:01 -08:00
div64.h
dma-mapping.h [PATCH] Pass struct dev pointer to dma_cache_sync() 2006-12-07 08:39:41 -08:00
dma.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
dmi.h [PATCH] x86_64: Implement early DMI scanning 2006-03-25 09:10:55 -08:00
dwarf2.h [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder 2006-09-26 10:52:41 +02:00
e820.h [PATCH] compile error of register_memory() 2006-12-22 08:55:49 -08:00
edac.h
elf.h [PATCH] i386: Convert i386 PDA code to use %fs 2007-02-13 13:26:20 +01:00
emergency-restart.h
errno.h
fcntl.h
fixmap.h [PATCH] Fix CONFIG_COMPAT_VDSO 2007-01-26 13:50:58 -08:00
floppy.h IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
frame.i Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
futex.h [PATCH] mm: pagefault_{disable,enable}() 2006-12-07 08:39:21 -08:00
genapic.h [PATCH] x86: fix the irqbalance quirk for E7320/E7520/E7525 2006-12-07 02:14:10 +01:00
hardirq.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
highmem.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
hpet.h [PATCH] clockevents: i386 drivers 2007-02-16 08:13:59 -08:00
hw_irq.h [PATCH] i386/x86_64: Remove global IO_APIC_VECTOR 2006-10-08 12:24:02 -07:00
hypertransport.h [PATCH] Initial generic hypertransport interrupt support 2006-10-04 07:55:29 -07:00
i387.h [PATCH] i386: add sleazy FPU optimization 2006-12-07 02:14:01 +01:00
i8253.h [PATCH] clockevents: i386 drivers 2007-02-16 08:13:59 -08:00
i8259.h
ide.h [PATCH] ide: more conversion to pci_get APIs 2006-12-08 08:29:03 -08:00
intel_arch_perfmon.h [PATCH] x86: i386/x86-64 Add nmi watchdog support for new Intel CPUs 2006-09-26 10:52:27 +02:00
io_apic.h [PATCH] io_apic.h needs apicdef.h 2007-03-05 07:57:50 -08:00
io.h [PATCH] kill eth_io_copy_and_sum() 2007-02-09 09:14:07 -08:00
ioctl.h
ioctls.h
ipc.h
ipcbuf.h
irq_regs.h [PATCH] i386: Store the interrupt regs pointer in the PDA 2006-12-07 02:14:03 +01:00
irq.h [PATCH] x86: fix the irqbalance quirk for E7320/E7520/E7525 2006-12-07 02:14:10 +01:00
irqflags.h [PATCH] paravirt: Patch inline replacements for paravirt intercepts 2006-12-07 02:14:08 +01:00
ist.h
k8.h [PATCH] x86_64: Clean and enhance up K8 northbridge access code 2006-06-26 10:48:15 -07:00
Kbuild [PATCH] cleanup asm/setup.h userspace visibility 2006-12-07 08:39:46 -08:00
kdebug.h [PATCH] Notify page fault call chain for i386 2006-06-26 09:58:22 -07:00
kexec.h [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
kmap_types.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
kprobes.h [PATCH] IA64: kprobe invalidate icache of jump buffer 2006-07-31 13:28:38 -07:00
ldt.h
linkage.h
local.h i386: improve and correct inline asm memory constraints 2006-07-08 15:24:18 -07:00
math_emu.h [PATCH] i386: PDA: Fix math emulator for new pt_regs 2006-12-07 02:14:03 +01:00
mc146818rtc.h
mca_dma.h [PATCH] kernel-doc for kernel/dma.c 2006-10-03 08:03:41 -07:00
mca.h
mce.h [PATCH] i386: Move mce_disabled to asm/mce.h 2007-02-13 13:26:26 +01:00
mman.h [PATCH] add asm-generic/mman.h 2006-02-15 15:32:22 -08:00
mmu_context.h [PATCH] i386: Convert i386 PDA code to use %fs 2007-02-13 13:26:20 +01:00
mmu.h [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
mmx.h
mmzone.h [PATCH] silence unused pgdat warning from alloc_bootmem_node and friends 2006-12-07 08:39:23 -08:00
module.h [PATCH] i386: always enable regparm 2006-12-07 02:14:12 +01:00
mpspec_def.h [PATCH] x86-64: remove remaining pc98 code 2006-12-07 02:14:19 +01:00
mpspec.h [PATCH] clockevents: i386 drivers 2007-02-16 08:13:59 -08:00
msgbuf.h
msidef.h [PATCH] genirq: i386 irq: Move msi message composition into io_apic.c 2006-10-04 07:55:28 -07:00
msr.h Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq 2007-02-26 14:17:50 -08:00
mtrr.h [PATCH] Don't trigger full rebuild via CONFIG_MTRR 2006-06-23 07:42:56 -07:00
mutex.h [PATCH] i386: Remove lock section support in mutex.h 2006-09-26 10:52:31 +02:00
namei.h
nmi.h [PATCH] disable NMI watchdog by default 2007-03-05 08:23:51 -08:00
numa.h
numaq.h
page.h [PATCH] Fix CONFIG_COMPAT_VDSO 2007-01-26 13:50:58 -08:00
param.h [PATCH] cleanup asm/setup.h userspace visibility 2006-12-07 08:39:46 -08:00
paravirt.h [PATCH] vmi: pit override 2007-03-05 07:57:52 -08:00
parport.h
pci-direct.h
pci.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
pda.h [PATCH] i386: Convert i386 PDA code to use %fs 2007-02-13 13:26:20 +01:00
percpu.h [PATCH] i386: espfix cleanup 2006-12-07 02:14:01 +01:00
pgalloc.h [PATCH] MM: page allocation hooks for VMI backend 2007-02-13 13:26:21 +01:00
pgtable-2level-defs.h
pgtable-2level.h [PATCH] paravirt: fix missing pte update 2006-12-07 02:14:09 +01:00
pgtable-3level-defs.h
pgtable-3level.h [PATCH] paravirt: fix missing pte update 2006-12-07 02:14:09 +01:00
pgtable.h [PATCH] vmi: fix highpte 2007-03-05 07:57:52 -08:00
poll.h [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 2006-03-25 08:22:56 -08:00
posix_types.h i386: improve and correct inline asm memory constraints 2006-07-08 15:24:18 -07:00
processor.h Revert "[PATCH] i386: add idle notifier" 2007-02-26 09:21:46 -08:00
ptrace-abi.h [PATCH] Split i386 and x86_64 ptrace.h 2006-09-26 08:49:10 -07:00
ptrace.h [PATCH] i386: Profile pc badness 2007-02-13 13:26:21 +01:00
resource.h
rtc.h
rwlock.h [PATCH] i386: Clean up spin/rwlocks 2006-09-26 10:52:32 +02:00
rwsem.h [PATCH] lockdep: name some old style locks 2006-12-07 08:39:36 -08:00
scatterlist.h
seccomp.h
sections.h
segment.h [PATCH] i386: Profile pc badness 2007-02-13 13:26:21 +01:00
semaphore.h [PATCH] i386: Use early clobbers for semaphores now 2006-09-27 14:39:51 -07:00
sembuf.h
serial.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
setup.h [PATCH] i386: Remove extern declaration from mm/discontig.c, put in header. 2007-02-13 13:26:26 +01:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] headers_check: move inclusion of <linux/linkage.h> in <asm-i386/signal.h> 2006-09-13 07:32:15 -07:00
smp.h [PATCH] i386: SMP boot hook for paravirt 2007-02-13 13:26:21 +01:00
socket.h [AF_UNIX]: Datagram getpeersec 2006-06-29 16:58:06 -07:00
sockios.h
sparsemem.h
spinlock_types.h [PATCH] Remove 'volatile' from spinlock_types 2006-12-06 14:39:53 -08:00
spinlock.h [PATCH] paravirt: Patch inline replacements for paravirt intercepts 2006-12-07 02:14:08 +01:00
srat.h
stacktrace.h [PATCH] i386: Do stacktracer conversion too 2006-09-26 10:52:34 +02:00
stat.h [PATCH] 2TB files: st_blocks is invalid when calling stat64 2006-03-26 08:57:00 -08:00
statfs.h
string.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
suspend.h Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
sync_bitops.h [PATCH] x86: implement always-locked bit ops, for memory shared with an SMP hypervisor 2006-09-26 08:48:55 -07:00
system.h [PATCH] paravirt: header and stubs for paravirtualisation 2006-12-07 02:14:07 +01:00
termbits.h [PATCH] tty: preparatory structures for termios revamp 2006-12-08 08:28:56 -08:00
termios.h [PATCH] consolidate line discipline number definitions 2007-02-11 10:51:26 -08:00
therm_throt.h [PATCH] x86: Add a cumulative thermal throttle event counter. 2006-09-26 10:52:42 +02:00
thread_info.h [PATCH] PM: Fix SMP races in the freezer 2006-12-13 09:05:49 -08:00
time.h [PATCH] vmi: pit override 2007-03-05 07:57:52 -08:00
timer.h [PATCH] vmi: cpu cycles fix 2007-03-05 07:57:52 -08:00
timex.h [PATCH] Time: i386 Conversion - part 2: Rework TSC Support 2006-06-26 09:58:21 -07:00
tlb.h
tlbflush.h [PATCH] paravirt: Add MMU virtualization to paravirt_ops 2006-12-07 02:14:08 +01:00
topology.h [PATCH] sched: remove SMT nice 2007-03-05 07:57:51 -08:00
tsc.h [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
types.h [PATCH] Centralise definitions of sector_t and blkcnt_t 2006-12-04 19:41:15 -08:00
uaccess.h [PATCH] fix sparse warnings from {asm,net}/checksum.h 2007-02-11 10:51:31 -08:00
ucontext.h
unaligned.h
unistd.h [PATCH] remove kernel syscalls 2006-12-07 08:39:37 -08:00
unwind.h Remove stack unwinder for now 2006-12-15 08:47:51 -08:00
user.h
vga.h [PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use 2006-06-22 15:05:58 -07:00
vic.h [VOYAGER] fix up ptregs removal mess 2006-10-12 22:25:03 -05:00
vm86.h [PATCH] i386: Update sys_vm86 to cope with changed pt_regs and %gs usage 2006-12-07 02:14:03 +01:00
vmi_time.h [PATCH] vmi: cpu cycles fix 2007-03-05 07:57:52 -08:00
vmi.h [PATCH] vmi: apic ops 2007-03-05 07:57:52 -08:00
voyager.h [VOYAGER] fix up attribute packed specifiers in voyager.h 2006-10-12 22:23:18 -05:00
xor.h