On Wed, 23 Apr 2014 12:37:05 +0200 Mike Galbraith <umgwanakikbuti@xxxxxxxxx> wrote: > On Fri, 2014-04-11 at 20:57 +0200, Sebastian Andrzej Siewior wrote: > > > This -RT series didn't crashed within ~4h testing on my ARM and > > x86-32. > > x86-64 crashed after I started hackbench. I figured out that the crash > > does not happen with lazy-preempt disabled. Therefore the last but one > > patch in the queue disables lazy preempt on x86-64. With this change the > > test box survived ~2h without a crash. I look at this later but it looks > > good now. > > I think the below fixes it (in a more or less minimalist way), but it's > not very pretty. Methinks it would be prettier to either clone the x86 > percpu + fold logic, or neutralize that optimization completely when > PREEMPT_LAZY is enabled. > > x86_32 bit is completely untested, x86_64 hasn't exploded.. yet :) > This patch makes sense to me. Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx> -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
