Messages in this thread Patch in this message | | | Date | Sat, 8 Sep 2012 20:42:03 -0700 (PDT) | From | Hugh Dickins <> | Subject | [PATCH mmotm] slub: zero page to fix boot crashes |
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Latest mmotm rarely boots if SLUB is enabled: earlyprintk=vga shows it crashing with various backtraces. The memset has now been removed from kmem_cache_open(), so kmem_cache_init() needs to zero its page. This gets SLUB booting reliably again.
Signed-off-by: Hugh Dickins <hughd@google.com> ---
mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- mmotm/mm/slub.c 2012-09-07 12:39:38.136019730 -0700 +++ fixed/mm/slub.c 2012-09-08 19:37:38.608993123 -0700 @@ -3712,7 +3712,7 @@ void __init kmem_cache_init(void) /* Allocate two kmem_caches from the page allocator */ kmalloc_size = ALIGN(kmem_size, cache_line_size()); order = get_order(2 * kmalloc_size); - kmem_cache = (void *)__get_free_pages(GFP_NOWAIT, order); + kmem_cache = (void *)__get_free_pages(GFP_NOWAIT | __GFP_ZERO, order); /* * Must first have the slab cache available for the allocations of the
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