2.6.29-stable review patch. If anyone has any objections, please let us know. ------------------ From: David S. Miller [ Upstream commit 8e255baa449df3049a8827a7f1f4f12b6921d0d1 ] Interrupts must be disabled when taking the IPI lock. Caught by lockdep. Reported-by: Meelis Roos Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- arch/sparc/kernel/smp_64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -118,9 +118,9 @@ void __cpuinit smp_callin(void) while (!cpu_isset(cpuid, smp_commenced_mask)) rmb(); - ipi_call_lock(); + ipi_call_lock_irq(); cpu_set(cpuid, cpu_online_map); - ipi_call_unlock(); + ipi_call_unlock_irq(); /* idle thread is expected to have preempt disabled */ preempt_disable(); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/