Messages in this thread | | | Subject | Re: [PATCH v2 0/2] mm/kasan: dump alloc/free stack for page allocator | From | Vlastimil Babka <> | Date | Tue, 10 Sep 2019 13:53:23 +0200 |
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On 9/10/19 12:50 PM, Andrey Ryabinin wrote: > > > For slab objects we memorize both alloc and free stacks. You'll never know in advance what information will be usefull > to fix an issue, so it usually better to provide more information. I don't think we should do anything different for pages.
Exactly, thanks.
> Given that we already have the page_owner responsible for providing alloc/free stacks for pages, all that we should in KASAN do is to > enable the feature by default. Free stack saving should be decoupled from debug_pagealloc into separate option so that it can be enabled > by KASAN and/or debug_pagealloc.
Right. Walter, can you do it that way, or should I?
Thanks, Vlastimil
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