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author | Linus Torvalds | 2006-09-26 22:07:55 +0200 |
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committer | Linus Torvalds | 2006-09-26 22:07:55 +0200 |
commit | b278240839e20fa9384ea430df463b367b90e04e (patch) | |
tree | f99f0c8cdd4cc7f177cd75440e6bd181cded7fb3 /arch/i386/kernel/crash.c | |
parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 (diff) | |
parent | [PATCH] Don't set calgary iommu as default y (diff) | |
download | kernel-qcow2-linux-b278240839e20fa9384ea430df463b367b90e04e.tar.gz kernel-qcow2-linux-b278240839e20fa9384ea430df463b367b90e04e.tar.xz kernel-qcow2-linux-b278240839e20fa9384ea430df463b367b90e04e.zip |
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits)
[PATCH] Don't set calgary iommu as default y
[PATCH] i386/x86-64: New Intel feature flags
[PATCH] x86: Add a cumulative thermal throttle event counter.
[PATCH] i386: Make the jiffies compares use the 64bit safe macros.
[PATCH] x86: Refactor thermal throttle processing
[PATCH] Add 64bit jiffies compares (for use with get_jiffies_64)
[PATCH] Fix unwinder warning in traps.c
[PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1
[PATCH] x86: Move direct PCI scanning functions out of line
[PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI
[PATCH] Don't leak NT bit into next task
[PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder
[PATCH] Fix some broken white space in ia32_signal.c
[PATCH] Initialize argument registers for 32bit signal handlers.
[PATCH] Remove all traces of signal number conversion
[PATCH] Don't synchronize time reading on single core AMD systems
[PATCH] Remove outdated comment in x86-64 mmconfig code
[PATCH] Use string instructions for Core2 copy/clear
[PATCH] x86: - restore i8259A eoi status on resume
[PATCH] i386: Split multi-line printk in oops output.
...
Diffstat (limited to 'arch/i386/kernel/crash.c')
-rw-r--r-- | arch/i386/kernel/crash.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 5b96f038367f..67d297dc1003 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -22,6 +22,8 @@ #include <asm/nmi.h> #include <asm/hw_irq.h> #include <asm/apic.h> +#include <asm/kdebug.h> + #include <mach_ipi.h> @@ -93,16 +95,25 @@ static void crash_save_self(struct pt_regs *regs) #if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC) static atomic_t waiting_for_crash_ipi; -static int crash_nmi_callback(struct pt_regs *regs, int cpu) +static int crash_nmi_callback(struct notifier_block *self, + unsigned long val, void *data) { + struct pt_regs *regs; struct pt_regs fixed_regs; + int cpu; + + if (val != DIE_NMI_IPI) + return NOTIFY_OK; + + regs = ((struct die_args *)data)->regs; + cpu = raw_smp_processor_id(); /* Don't do anything if this handler is invoked on crashing cpu. * Otherwise, system will completely hang. Crashing cpu can get * an NMI if system was initially booted with nmi_watchdog parameter. */ if (cpu == crashing_cpu) - return 1; + return NOTIFY_STOP; local_irq_disable(); if (!user_mode_vm(regs)) { @@ -125,13 +136,18 @@ static void smp_send_nmi_allbutself(void) send_IPI_allbutself(NMI_VECTOR); } +static struct notifier_block crash_nmi_nb = { + .notifier_call = crash_nmi_callback, +}; + static void nmi_shootdown_cpus(void) { unsigned long msecs; atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); /* Would it be better to replace the trap vector here? */ - set_nmi_callback(crash_nmi_callback); + if (register_die_notifier(&crash_nmi_nb)) + return; /* return what? */ /* Ensure the new callback function is set before sending * out the NMI */ |