On 3/12/20 8:57 AM, Qian Cai wrote: > On Wed, 2020-03-04 at 16:26 -0800, Mike Kravetz wrote: >> While discussing the issue with huge_pte_offset [1], I remembered that >> there were more outstanding hugetlb races. These issues are: > > Reverted this series on the top of today's linux-next fixed the hang with LTP > move_pages12 on both powerpc and arm64, > > # /opt/ltp/testcases/bin/move_pages12 > tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s > move_pages12.c:263: INFO: Free RAM 260577280 kB > move_pages12.c:281: INFO: Increasing 2048kB hugepages pool on node 0 to 4 > move_pages12.c:291: INFO: Increasing 2048kB hugepages pool on node 8 to 4 > move_pages12.c:207: INFO: Allocating and freeing 4 hugepages on node 0 > move_pages12.c:207: INFO: Allocating and freeing 4 hugepages on node 8 > <hang> Thank you for finding this. I'll dig into it. It is timing related as it takes a few test runs for me to reproduce. Sorry for the issues. Feel free to revert upstream and mm tree until there is a resolution. -- Mike Kravetz