On Sat, 19 Nov 2005, Miles Lane wrote:
> [17179671.700000] Bad page state at free_hot_cold_page (in process
> 'aplay', page c18eef30)
> [17179671.700000] flags:0x80000414 mapping:00000000 mapcount:0 count:0
Please let me know if it's not fixed by:
--- 2.6.15-rc1-mm2/sound/core/memalloc.c 2005-11-12 09:01:28.000000000 +0000
+++ linux/sound/core/memalloc.c 2005-11-19 19:03:32.000000000 +0000
@@ -197,6 +197,7 @@ void *snd_malloc_pages(size_t size, gfp_
snd_assert(size > 0, return NULL);
snd_assert(gfp_flags != 0, return NULL);
+ gfp_flags |= __GFP_COMP; /* compound page lets parts be mapped */
pg = get_order(size);
if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL) {
mark_pages(virt_to_page(res), pg);
@@ -241,6 +242,7 @@ static void *snd_malloc_dev_pages(struct
snd_assert(dma != NULL, return NULL);
pg = get_order(size);
gfp_flags = GFP_KERNEL
+ | __GFP_COMP /* compound page lets parts be mapped */
| __GFP_NORETRY /* don't trigger OOM-killer */
| __GFP_NOWARN; /* no stack trace print - this call is non-critical */
res = dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags);
-
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