Messages in this thread | | | Date | Fri, 26 Feb 2016 19:47:48 +0300 | Subject | Re: [PATCH v2] mm/slub: support left redzone | From | Andrey Ryabinin <> |
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2016-02-26 7:36 GMT+03:00 <js1304@gmail.com>: > From: Joonsoo Kim <iamjoonsoo.kim@lge.com> > > SLUB already has a redzone debugging feature. But it is only positioned > at the end of object (aka right redzone) so it cannot catch left oob. > Although current object's right redzone acts as left redzone of next > object, first object in a slab cannot take advantage of this effect. This > patch explicitly adds a left red zone to each object to detect left oob > more precisely. >
So why for each object? Can't we have left redzone only for the first object?
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