Messages in this thread | | | Subject | Re: [PATCH v1 1/1] mm/vmalloc.c: Fix percpu free VM area search criteria | From | sathyanarayanan kuppuswamy <> | Date | Tue, 30 Jul 2019 15:37:33 -0700 |
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On 7/30/19 3:34 PM, Uladzislau Rezki wrote: > Hello, Sathyanarayanan. > >> I agree with Dave. I don't think this issue is related to NUMA. The problem >> here is about the logic we use to find appropriate vm_area that satisfies >> the offset and size requirements of pcpu memory allocator. >> >> In my test case, I can reproduce this issue if we make request with offset >> (ffff000000) and size (600000). >> > Just to clarify, does it mean that on your setup you have only one area with the > 600000 size and 0xffff000000 offset? No, its 2 areas. with offset (0, ffff000000) and size (a00000, 600000). > > Thank you. > > -- > Vlad Rezki > -- Sathyanarayanan Kuppuswamy Linux kernel developer
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