Messages in this thread Patch in this message | | | Date | Wed, 22 Nov 2006 18:08:53 +0100 | From | Andi Kleen <> | Subject | Re: [discuss] 2.6.19-rc6: known regressions (v4) |
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On Wed, Nov 22, 2006 at 05:05:49PM +0100, Andre Noll wrote: > Unfortunately, yes. I tried rc6, current git, and currrent git + David > Rientjes' patch. They all show the same behaviour.
I must have missed that patch. > > > It's probably another bug in the memmap parsing rewrite (Mel cc'ed) > > but the debugging information in the standard kernel unfortunately > > doesn't give enough output to find out where it happens. > > Feel free to send me a debugging patch..
Here's one. Please send output (unless Mel finds the problem first..)
-Andi
Index: linux-2.6.19-rc6-hack/mm/page_alloc.c =================================================================== --- linux-2.6.19-rc6-hack/mm/page_alloc.c +++ linux-2.6.19-rc6-hack/mm/page_alloc.c @@ -188,6 +188,10 @@ static inline int bad_range(struct zone static void bad_page(struct page *page) { + static int warned; + if (!warned) { + warned = 1; + printk(KERN_EMERG "page address %lx\n", page_address(page)); printk(KERN_EMERG "Bad page state in process '%s'\n" KERN_EMERG "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n" KERN_EMERG "Trying to fix it up, but a reboot is needed\n" @@ -196,6 +200,7 @@ static void bad_page(struct page *page) (unsigned long)page->flags, page->mapping, page_mapcount(page), page_count(page)); dump_stack(); + } page->flags &= ~(1 << PG_lru | 1 << PG_private | 1 << PG_locked | - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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