Re: [PATCH 1/2] Revert "vmalloc: back off when the current task is killed"

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On Wed 04-10-17 19:18:21, Johannes Weiner wrote:
> On Wed, Oct 04, 2017 at 03:32:45PM -0700, Andrew Morton wrote:
[...]
> > You don't think they should be backported into -stables?
> 
> Good point. For this one, it makes sense to CC stable, for 4.11 and
> up. The second patch is more of a fortification against potential
> future issues, and probably shouldn't go into stable.

I am not against. It is true that the memory reserves depletion fix was
theoretical because I haven't seen any real life bug. I would argue that
the more robust allocation failure behavior is a stable candidate as
well, though, because the allocation can fail regardless of the vmalloc
revert. It is less likely but still possible.
-- 
Michal Hocko
SUSE Labs

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