Messages in this thread | | | Date | Fri, 18 Jul 2008 09:46:26 +0400 | From | Evgeniy Polyakov <> | Subject | Re: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten |
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Hi Ingo.
On Thu, Jul 17, 2008 at 11:42:22PM +0200, Ingo Molnar (mingo@elte.hu) wrote: > Pid: 5098, comm: gdm-binary Not tainted 2.6.26-tip #3094 > [<c0186f99>] print_trailer+0xa9/0xf0 > [<c018707b>] check_bytes_and_report+0x9b/0xc0 > [<c01874ae>] check_object+0x19e/0x1e0 > [<c0187ef1>] __slab_alloc+0x371/0x4e0 > [<c0188552>] kmem_cache_alloc+0xb2/0xc0 > [<c06732dc>] ? __alloc_skb+0x2c/0x110
Out of curiosity, why does it scream at allocation time? Does SLUB have a debug check at freeing time? If so, how does it work and why didn't it caught use after free there?
-- Evgeniy Polyakov
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