Yes... the futex was placed un a hugetlb page...
Thanks Andrew, I will test your patch very soon.
From: "Andrew Morton" <akpm@digeo.com>
> "dada1" <dada1@cosmosbay.com> wrote:
> >
> > Hello
> >
> > I tried linux-2.5.67 this morning...
> >
> > instant oops with a small multi-threaded program using futex()
>
> Was the futex placed inside a hugetlb page? Please say yes.
>
> There is a stunning bug.
>
> --- 25/include/linux/mm.h~a 2003-04-08 02:03:19.000000000 -0700
> +++ 25-akpm/include/linux/mm.h 2003-04-08 02:03:24.000000000 -0700
> @@ -231,8 +231,8 @@ static inline void get_page(struct page
> static inline void put_page(struct page *page)
> {
> if (PageCompound(page)) {
> + page = (struct page *)page->lru.next;
> if (put_page_testzero(page)) {
> - page = (struct page *)page->lru.next;
> if (page->lru.prev) { /* destructor? */
> (*(void (*)(struct page *))page->lru.prev)(page);
> } else {
>
> _
>
-
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This archive was generated by hypermail 2b29 : Tue Apr 15 2003 - 22:00:14 EST