On Mon, Feb 20, 2017 at 09:29:24PM +0800, Xunlei Pang wrote: > There is a small window between crash and kdump kernel boot, so > if a SRAO comes within this window it will also cause the mce > synchronization problem on the crashing cpu if we don't bail out the > crashing cpu. You mean, in the window between, kdump kernel starts writing out memory and the second, kexec-ed kernel? If so, please add that information to the place in do_machine_check() where we check crashing_cpu so that we know why we're doing this temporary ignore of #MC. Thanks. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.