Messages in this thread | | | Date | Wed, 10 Jun 2009 10:59:39 +0200 | From | Nick Piggin <> | Subject | Re: [PATCH] [13/16] HWPOISON: The high level memory error handler in the VM v5 |
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On Wed, Jun 10, 2009 at 04:38:03PM +0800, Wu Fengguang wrote: > On Wed, Jun 10, 2009 at 12:05:53AM +0800, Hugh Dickins wrote: > > I think a much more sensible approach would be to follow the page > > migration technique of replacing the page's ptes by a special swap-like > > entry, then do the killing from do_swap_page() if a process actually > > tries to access the page. > > We call that "late kill" and will be enabled when > sysctl_memory_failure_early_kill=0. Its default value is 1.
What's the use of this? What are the tradeoffs, in what situations should an admin set this sysctl one way or the other?
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