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otherip
2005 Feb 09
1
RE: [PATCH 2/2] netfront skb padding
...gt; be 24. 24 = 14 for the ethernet header + 2 for the cache
> alignment + 4 for
> the CRC + 4 for the VLAN flags.
Given that we''re allocating page sized buffers the current situation
doesn''t cost us anything.
Infact, what happens if the packet gets encapsulated e.g. by etherip
etc? Is Linux smart enough to be able to put the extra headers on
in-place if there is enough head room?
If so, the current situation is positively better.
Ian
> Tested on Xen 2.0.3 and linux 2.6.10 kernel.
>
> Signed-off-by: Jon Mason <jdmason@us.ibm.com>
> ---
>
> ---...
2007 Jun 06
0
[Patch] vnet-module
Hallo!
The attached patch repair the vnet-module (patch base is
xen-3.1.0)
- moves the "skb_pull" function from kernel to skb_util.c
because pulling in the data will rise a "BUG_ON" in the
kernel.
- the skb_buff is not always possible to modify.
(vnet_forward.c and etherip.c) The code now work''s..
I think with no or less time-penalty.
Info for kernel-option CONFIG_BRIDGE_NETFILTER :
There is a race-condition in the code (nf_iterate), which will
kill the kernel. With hyperthreading and vnet over 2 Server
a scp will kill it in less 1 (one) second. Blockin...