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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-09 10:55:17 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-09 10:55:17 -0800 |
| commit | b675b3667f6729dcd1036a2a129b35445947f905 (patch) | |
| tree | 0d58791e9063d3ca2c352da6f3e7df2bdb876f9d /arch/x86/kernel/irq_32.c | |
| parent | 104a5f3cad8f2f27cadbdf0029400ecd9e17ccc0 (diff) | |
| parent | 192cfd58774b4d17b2fe8bdc77d89c2ef4e0591d (diff) | |
Merge commit 'v3.3-rc6' into next
Diffstat (limited to 'arch/x86/kernel/irq_32.c')
| -rw-r--r-- | arch/x86/kernel/irq_32.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c index 72090705a65..40fc86161d9 100644 --- a/arch/x86/kernel/irq_32.c +++ b/arch/x86/kernel/irq_32.c @@ -28,6 +28,9 @@ DEFINE_PER_CPU(struct pt_regs *, irq_regs); EXPORT_PER_CPU_SYMBOL(irq_regs); #ifdef CONFIG_DEBUG_STACKOVERFLOW + +int sysctl_panic_on_stackoverflow __read_mostly; + /* Debugging check for stack overflow: is there less than 1KB free? */ static int check_stack_overflow(void) { @@ -43,6 +46,8 @@ static void print_stack_overflow(void) { printk(KERN_WARNING "low stack detected by irq handler\n"); dump_stack(); + if (sysctl_panic_on_stackoverflow) + panic("low stack detected by irq handler - check messages\n"); } #else |