CFT: vr(4)

Mike Tancsa mike at
Sat Feb 16 06:38:30 UTC 2008

At 01:17 AM 10/8/2007, Pyun YongHyeon wrote:
>It seems that there had been several stability issues in vr(4).
>Here is mimimal patch that make vr(4) work reliably under heavy
>network loads. The patch does the following:
>  - Always check writability of mbuf before padding and make a
>    writable copy of the mbuf if mbuf is marked as read-only.
>  - Before padding is done check remaining bytes such that it can
>    safely extend buffer size of the mbuf.
>  - Before padding always check the return value of m_defrag(9).
>  - Zero out pad space to avoid leaking data.
>If you have vr(4) hardware please give it spin and let me know
>the result.

Its been working quite well on 3 Soekris 5501 boards!  It would be 
great to see these fixes committed.


>Pyun YongHyeon
>freebsd-current at mailing list
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