Messages in this thread | | | Date | Wed, 18 Apr 2018 15:39:47 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH] mm:memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create |
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On Wed 18-04-18 06:31:39, Matthew Wilcox wrote: > On Wed, Apr 18, 2018 at 11:29:12AM +0900, Minchan Kim wrote: > > If there are heavy memory pressure, page allocation with __GFP_NOWAIT > > fails easily although it's order-0 request. > > I got below warning 9 times for normal boot. > > > > Let's not make user scared. > > Actually, can you explain why it's OK if this fails? As I understand this > code, we'll fail to create a kmalloc cache for this memcg. What problems > does that cause?
See http://lkml.kernel.org/r/20180418072002.GN17484@dhcp22.suse.cz
-- Michal Hocko SUSE Labs
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