Messages in this thread | | | Date | Thu, 03 Nov 2011 00:20:59 +0100 | From | Eric Dumazet <> | Subject | Re: [PATCH] net: Add back alignment for size for __alloc_skb |
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On 03/11/2011 00:19, Tony Lindgren wrote:
> * David Miller <davem@davemloft.net> [111102 15:42]: >> c> >>> 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. >> >> Right, and SMP_CACHE_BYTES setting should save us in any case. >> >> For ARM, SMP_CACHE_BYTES seems to be set to L1_CACHE_BYTES which in >> turn is set via ARM_L1_CACHE_SHIFT which can be set seemingly to any >> value but the defaults are 5 and 6 which should be OK. >> >> So unless Tony is using a non-standard setting of ARM_L1_CACHE_SHIFT, >> this report is a bit mysterious. > > This is happening at least with omap1_defconfig. In that case we have > ARM_L1_CACHE_SHIFT=5. > > Regards, > > Tony
Do you use SLOB, SLUB or SLAB ?
Thanks
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