Hi Sebastian, On Tue, Mar 18, 2014 at 09:40:57PM +0000, Sebastian Capella wrote: > Use of tracers in local_irq_disable is causes abort loops when called > with irqs disabled using a temporary stack. Replace local_irq_disable > with raw_local_irq_disable instead to avoid tracers.
Do you have any more information about these aborts? At the time we call local_irq_disable, the stack is still intact, so if the issue is simply related to having any tracers active at the call_with_stack invocation, we'd be better off disabling tracing here altogether. Will > Signed-off-by: Sebastian Capella <[email protected]> > Cc: Russell King <[email protected]> > Cc: Andrew Morton <[email protected]> > Cc: Will Deacon <[email protected]> > Cc: Robin Holt <[email protected]> > Cc: Thomas Gleixner <[email protected]> > Cc: Konstantin Khlebnikov <[email protected]> > Cc: Steven Capper <[email protected]> > Cc: Stephen Warren <[email protected]> > Cc: Tejun Heo <[email protected]> > --- > arch/arm/kernel/process.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c > index 92f7b15..f58b723 100644 > --- a/arch/arm/kernel/process.c > +++ b/arch/arm/kernel/process.c > @@ -100,7 +100,7 @@ void soft_restart(unsigned long addr) > u64 *stack = soft_restart_stack + ARRAY_SIZE(soft_restart_stack); > > /* Disable interrupts first */ > - local_irq_disable(); > + raw_local_irq_disable(); > local_fiq_disable(); > > /* Disable the L2 if we're the last man standing. */ > -- > 1.7.9.5 > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
