Ravikiran G Thirumalai 92715e282b [PATCH] x86: Fix boot hang due to nmi watchdog init code ... 2.6.19 stopped booting (or booted based on build/config) on our x86_64 systems due to a bug introduced in 2.6.19. check_nmi_watchdog schedules an IPI on all cpus to busy wait on a flag, but fails to set the busywait flag if NMI functionality is disabled. This causes the secondary cpus to spin in an endless loop, causing the kernel bootup to hang. Depending upon the build, the busywait flag got overwritten (stack variable) and caused the kernel to bootup on certain builds. Following patch fixes the bug by setting the busywait flag before returning from check_nmi_watchdog. I guess using a stack variable is not good here as the calling function could potentially return while the busy wait loop is still spinning on the flag. AK: I redid the patch significantly to be cleaner Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de>		2006-12-09 21:33:35 +01:00
..
acpi	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
cpu	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
.gitignore
alternative.c	[PATCH] paravirt: Patch inline replacements for paravirt intercepts	2006-12-07 02:14:08 +01:00
apic.c	[PATCH] x86: Regard MSRs in lapic_suspend()/lapic_resume()	2006-12-07 02:14:11 +01:00
apm.c	[PATCH] paravirt: Allow disable power management under hypervisor	2006-12-07 02:14:08 +01:00
asm-offsets.c	[PATCH] paravirt: header and stubs for paravirtualisation	2006-12-07 02:14:07 +01:00
bootflag.c
cpuid.c	[PATCH] i386: change uses of f_{dentry, vfsmnt} to use f_path	2006-12-08 08:28:42 -08:00
crash_dump.c
crash.c	[PATCH] Kexec / Kdump: Unify elf note code	2006-12-07 08:39:46 -08:00
doublefault.c
e820.c	[PATCH] i386: Preserve EFI run time regions with memmap parameter	2006-12-07 02:14:11 +01:00
early_printk.c
efi_stub.S
efi.c	[PATCH] i386: call efi_get_time during suspend	2006-12-07 02:14:11 +01:00
entry.S	[PATCH] paravirt: Patch inline replacements for paravirt intercepts	2006-12-07 02:14:08 +01:00
head.S	[PATCH] paravirt: Add startup infrastructure for paravirtualization	2006-12-07 02:14:08 +01:00
hpet.c	[PATCH] i386: add missing iounmap in i386 hpet clocksource code	2006-12-07 02:14:02 +01:00
i386_ksyms.c
i387.c
i8237.c
i8253.c
i8259.c	[PATCH] paravirt: header and stubs for paravirtualisation	2006-12-07 02:14:07 +01:00
init_task.c
io_apic.c	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
ioport.c
irq.c
kprobes.c	[PATCH] kprobes: enable booster on the preemptible kernel	2006-12-07 08:39:38 -08:00
ldt.c	[PATCH] i386: remove default_ldt, and simplify ldt-setting.	2006-12-07 02:14:01 +01:00
machine_kexec.c
Makefile	[PATCH] paravirt: Add startup infrastructure for paravirtualization	2006-12-07 02:14:08 +01:00
mca.c	[PATCH] i386: replace kmalloc+memset with kzalloc	2006-12-07 02:14:19 +01:00
microcode.c	[PATCH] hotplug CPU: clean up hotcpu_notifier() use	2006-12-07 08:39:39 -08:00
module.c	[PATCH] Generic BUG for i386	2006-12-08 08:28:39 -08:00
mpparse.c	[PATCH] x86-64: remove remaining pc98 code	2006-12-07 02:14:19 +01:00
msr.c	[PATCH] i386: change uses of f_{dentry, vfsmnt} to use f_path	2006-12-08 08:28:42 -08:00
nmi.c	[PATCH] x86: Fix boot hang due to nmi watchdog init code	2006-12-09 21:33:35 +01:00
numaq.c
paravirt.c	[PATCH] paravirt: Add MMU virtualization to paravirt_ops	2006-12-07 02:14:08 +01:00
pci-dma.c	[PATCH] i386: replace kmalloc+memset with kzalloc	2006-12-07 02:14:19 +01:00
process.c	[PATCH] i386: remove IOPL check on task switch	2006-12-07 02:14:07 +01:00
ptrace.c	[PATCH] i386: Fix places where using %gs changes the usermode ABI	2006-12-07 02:14:02 +01:00
quirks.c	[PATCH] x86: Fix verify_quirk_intel_irqbalance()	2006-12-09 21:33:35 +01:00
reboot_fixups.c
reboot.c	[PATCH] arch/i386/kernel/reboot.c should #include <linux/reboot.h>	2006-12-07 08:39:44 -08:00
relocate_kernel.S
scx200.c
setup.c	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
sigframe.h
signal.c	[PATCH] i386: Use %gs as the PDA base-segment in the kernel	2006-12-07 02:14:02 +01:00
smp.c	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
smpboot.c	[PATCH] CPU hotplug broken with 2GB VMSPLIT	2006-12-08 08:29:09 -08:00
srat.c
summit.c
sys_i386.c
syscall_table.S
sysenter.c	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
time_hpet.c	[PATCH] i386: Add iounmap in error paths in hpet code	2006-12-07 02:14:02 +01:00
time.c	[PATCH] paravirt: header and stubs for paravirtualisation	2006-12-07 02:14:07 +01:00
topology.c	[PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu	2006-12-07 02:14:10 +01:00
trampoline.S
traps.c	[PATCH] Generic BUG for i386	2006-12-08 08:28:39 -08:00
tsc.c	Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6	2006-12-07 08:59:11 -08:00
vm86.c	[PATCH] i386: Update sys_vm86 to cope with changed pt_regs and %gs usage	2006-12-07 02:14:03 +01:00
vmlinux.lds.S	[PATCH] Generic BUG for i386	2006-12-08 08:28:39 -08:00
vsyscall-int80.S
vsyscall-note.S
vsyscall-sigreturn.S
vsyscall-sysenter.S
vsyscall.lds.S
vsyscall.S