The commit "arm64: switch to generic version of pte allocation" introduced endless failures during boot like, kobject_add_internal failed for pgd_cache(285:chronyd.service) (error: -2 parent: cgroup) It turns out __GFP_ACCOUNT is passed to kernel page table allocations and then later memcg finds out those don't belong to any cgroup. backtrace: kobject_add_internal kobject_init_and_add sysfs_slab_add+0x1a8 __kmem_cache_create create_cache memcg_create_kmem_cache memcg_kmem_cache_create_func process_one_work worker_thread kthread Signed-off-by: Qian Cai <cai@xxxxxx> --- arch/arm64/mm/pgd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c index 769516cb6677..53c48f5c8765 100644 --- a/arch/arm64/mm/pgd.c +++ b/arch/arm64/mm/pgd.c @@ -38,7 +38,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm) if (PGD_SIZE == PAGE_SIZE) return (pgd_t *)__get_free_page(gfp); else - return kmem_cache_alloc(pgd_cache, gfp); + return kmem_cache_alloc(pgd_cache, GFP_PGTABLE_KERNEL); } void pgd_free(struct mm_struct *mm, pgd_t *pgd) -- 1.8.3.1
