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@xxxxxxxxxx> > > Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > > --- > 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. I can not reproduce on the arm64 platforms I have. Been trying various config combinations without success. Although, there are lots of possibilities. Also, taking a closer look at the changes. So far, nothing is obvious. -- Mike Kravetz
