On Fri, 29 Apr 2022 at 21:33, Qian Cai <quic_qiancai@xxxxxxxxxxx> wrote: > > On Fri, Apr 29, 2022 at 04:50:25PM +0530, Naresh Kamboju wrote: > > Following kernel warning notices on Linux next-20220427 till date next-20220429 > > on qemu_arm64 and arm64 devices. > > > > While testing libhugetlbfs test suite and ltp mm and hugetlb. > > > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > > > > Test log: > > ---------- > > truncate_above_4GB (2M: 64): PASS > > brk_near_huge (2M: 64): brk_near_huge: malloc.c:2401: sysmalloc: > > Assertion `(old_top == initial_top (av) && old_size == 0) || > > ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && > > ((unsigned long) old_end & (pagesize - 1)) == 0)' failed. > > [ 15.685019] audit: type=1701 audit(1651222753.772:25): > > auid=4294967295 uid=0 gid=0 ses=4294967295 pid=454 > > comm=\"brk_near_huge\" > > exe=\"/usr/lib/libhugetlbfs/tests/obj64/brk_near_huge\" sig=6 res=1 > > [ 15.685629] ------------[ cut here ]------------ > > [ 15.685631] WARNING: CPU: 2 PID: 454 at mm/page_alloc.c:5368 > > Naresh, I am having difficult to reproduce this reliablely. If you have > spare cycles, do you mind reverting those to see if you can still > reproduce? I can't seems to find other recent commits more suspicious > than that series. > > 37e73e3b0a9d drivers: virtio_mem: use pageblock size as the minimum virtio_mem size. > d2b9cd2acb2b mm: cma: use pageblock_order as the single alignment > 7f125582227e mm: page_isolation: enable arbitrary range page isolation. > fb009b307b21 mm: make alloc_contig_range work at pageblock granularity > 7c7e18d510f4 mm: page_isolation: check specified range for unmovable pages > 6a242a94b883 mm: page_isolation: move has_unmovable_pages() to mm/page_isolation.c > > $ git revert --no-edit e389355485b7..37e73e3b0a9d The reported kernel warning was not solved by reverted above patches. - Naresh
