On Tue, Apr 19, 2016 at 07:13:34PM +0800, Xishi Qiu wrote: > /proc/sys/vm/memory_failure_early_kill > > 1: means kill all processes that have the corrupted and not reloadable page mapped. > 0: means only unmap the corrupted page from all processes and only kill a process > who tries to access it. > > If set memory_failure_early_kill to 0, and memory_failure() has been called. > memory_failure() > hwpoison_user_mappings() > collect_procs() // the task(with no PF_MCE_PROCESS flag) is not in the tokill list > try_to_unmap() > > If the task access the memory, there will be a page fault, > so the task can not access the original page again, right? Yes, right. That's the behavior in default "late kill" case. I'm guessing that you might have a more specific problem around this code. If so, please feel free to ask with detail. Thanks, Naoya Horiguchi -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href