On Wed, May 16, 2018 at 05:32:07PM -0600, Toshi Kani wrote: > pmd = (pmd_t *)pud_page_vaddr(*pud); > + pmd_sv = (pmd_t *)__get_free_page(GFP_KERNEL); > + if (!pmd_sv) > + return 0; So your code still needs to allocate a full page where a simple list_head on the stack would do the same job. Ingo, Thomas, can you please just revert the original broken patch for now until there is proper fix? Thanks, Joerg
