On Tue, May 31, 2016 at 11:28:05AM +0200, Geert Uytterhoeven wrote:
Hi Mel, On Mon, May 30, 2016 at 8:56 PM, Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> wrote:Thanks. Please try the following instead diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bb320cde4d6d..557549c81083 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3024,6 +3024,7 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags, apply_fair = false; fair_skipped = false; reset_alloc_batches(ac->preferred_zoneref->zone); + z = ac->preferred_zoneref; goto zonelist_scan; }Thanks a lot, that seems to fix the issue!. Tested-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> JFTR, without the fix, sometimes I get a different, but equally obscure, crash than the one I posted before:
I'm afraid I don't recognise it. Given the nature of the previous bug though, I have a vague suspicion that someone is not handling a page allocation failure properly and goes boom later. -- Mel Gorman SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
