Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> writes: > On Fri, Dec 07, 2012 at 11:06:41AM +0530, Aneesh Kumar K.V wrote: > ... >> > From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> >> > Date: Thu, 6 Dec 2012 20:54:30 -0500 >> > Subject: [PATCH v2] HWPOISON, hugetlbfs: fix warning on freeing hwpoisoned >> > hugepage >> > >> > This patch fixes the warning from __list_del_entry() which is triggered >> > when a process tries to do free_huge_page() for a hwpoisoned hugepage. >> >> >> Can you get a dump stack for that. I am confused because the page was >> already in freelist, and we deleted it from the list and set the >> refcount to 1. So how are we reaching free_huge_page() again ? > > free_huge_page() can be called for hwpoisoned hugepage from unpoison_memory(). > This function gets refcount once and clears PageHWPoison, and then puts > refcount twice to return the hugepage back to free pool. > The second put_page() finally reaches free_huge_page(). > Can we add this also to the commit message ?. With that you can add Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> Thanks -aneesh -- 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>