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authorMike Galbraith <efault@gmx.de>2009-02-04 17:11:34 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-04 17:36:18 +0100
commit5b75af0a02fcf3b8899f38ff6f22164c5d8e2fdd (patch)
tree9bc34da1216baf94222544d3f47aa42301a73e5d /arch/x86/oprofile
parent15081c61362618a0c81cc8d04e45e7427bc1ed71 (diff)
perfcounters: fix "perf counters kill oprofile" bug
With oprofile as a module, and unloaded by profiling script, both oprofile and kerneltop work fine.. unless you leave kerneltop running when you start profiling, then you may see badness. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/oprofile')
-rw-r--r--arch/x86/oprofile/nmi_int.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 202864ad49a..c638685136e 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -40,8 +40,9 @@ static int profile_exceptions_notify(struct notifier_block *self,
switch (val) {
case DIE_NMI:
- if (model->check_ctrs(args->regs, &per_cpu(cpu_msrs, cpu)))
- ret = NOTIFY_STOP;
+ case DIE_NMI_IPI:
+ model->check_ctrs(args->regs, &per_cpu(cpu_msrs, cpu));
+ ret = NOTIFY_STOP;
break;
default:
break;
@@ -134,7 +135,7 @@ static void nmi_cpu_setup(void *dummy)
static struct notifier_block profile_exceptions_nb = {
.notifier_call = profile_exceptions_notify,
.next = NULL,
- .priority = 0
+ .priority = 2
};
static int nmi_setup(void)