Messages in this thread | | | Date | Mon, 2 Oct 2023 11:57:10 +0200 | Subject | Re: [PATCH v6 2/8] hugetlb: restructure pool allocations | From | Konrad Dybcio <> |
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On 9/29/23 22:57, Mike Kravetz wrote: > On 09/27/23 13:26, Konrad Dybcio wrote: >> >> >> On 26.09.2023 01:48, Mike Kravetz wrote: >>> Allocation of a hugetlb page for the hugetlb pool is done by the routine >>> alloc_pool_huge_page. This routine will allocate contiguous pages from >>> a low level allocator, prep the pages for usage as a hugetlb page and >>> then add the resulting hugetlb page to the pool. >>> >>> In the 'prep' stage, optional vmemmap optimization is done. For >>> performance reasons we want to perform vmemmap optimization on multiple >>> hugetlb pages at once. To do this, restructure the hugetlb pool >>> allocation code such that vmemmap optimization can be isolated and later >>> batched. >>> >>> The code to allocate hugetlb pages from bootmem was also modified to >>> allow batching. >>> >>> No functional changes, only code restructure. >>> >>> Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> >>> Reviewed-by: Muchun Song <songmuchun@bytedance.com> >>> --- >> Hi, looks like this patch prevents today's next from booting >> on at least one Qualcomm ARM64 platform. Reverting it makes >> the device boot again. > > Can you share the config used and any other specific information such as > kernel command line. Later this week.
Konrad
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