Messages in this thread |  | | | Date | Thu, 03 Nov 2011 00:14:12 +0100 | | From | Eric Dumazet <> | | Subject | Re: [PATCH] net: Add back alignment for size for __alloc_skb |
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On 03/11/2011 00:09, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@gmail.com> > Date: Wed, 02 Nov 2011 23:55:11 +0100 > >> There is a problem with your kmalloc() or alignments on your architecture. >> >> What is the SMP_CACHE_BYTES value ? > > kmalloc() behavior doesn't have anything to do with this bug. > > The issue is calculation of skb->end, which is based upon calculated > 'size' variable. > > skb->end determines alignment of skb_shared_info, which is where the > alignment problem is occuring for Tony. >
I understood that David, but check the code, and you can see that exact skb->end depends also on ksize()
So maybe the right fix is to make sure skb->end is properly aligned, say with SLOB
So a more generic fix is welcomed.
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