If NUMA is enabled, the indicator is not reset if the previous page request is failed, then it will trigger the VM_BUG_ON in khugepaged_alloc_page
Signed-off-by: Xiao Guangrong <xiaoguangr...@linux.vnet.ibm.com> --- mm/huge_memory.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index e366ca5..66d2bc6 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1825,6 +1825,7 @@ static bool khugepaged_prealloc_page(struct page **hpage, bool *wait) return false; *wait = false; + *hpage = NULL; khugepaged_alloc_sleep(); } else if (*hpage) { put_page(*hpage); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/