On Thu, Dec 24, 2015 at 5:10 PM, Sasha Levin <sasha.levin@xxxxxxxxxx> wrote: > On 12/24/2015 06:51 AM, Kirill A. Shutemov wrote: >> This patch fixes regression caused by patch >> "mm, dax: dax-pmd vs thp-pmd vs hugetlbfs-pmd" >> >> The patch makes pmd_trans_huge() check and "page = pmd_page(*pmd)" after >> __split_huge_pmd_locked(). It can never succeed, since the pmd already >> points to a page table. As result the page is never get munlocked. >> >> It causes crashes like this: >> http://lkml.kernel.org/r/5661FBB6.6050307@xxxxxxxxxx > > So this patch didn't fix the issue for me. I've sent Kirill the trace > off-list, but it's essentially the same thing. Can you send me the trace as well, and the reproducer? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>