Messages in this thread | | | From | Naoya Horiguchi <> | Subject | Re: mce: a question about memory_failure_early_kill in memory_failure() | Date | Wed, 20 Apr 2016 07:07:35 +0000 |
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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
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