CFT: vr(4)

Pyun YongHyeon pyunyh at
Sun Feb 17 06:42:04 UTC 2008

On Sat, Feb 16, 2008 at 01:38:46AM -0500, Mike Tancsa wrote:
 > 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.

I'll commit it in a week.
Thanks a lot for your time/testing!

Pyun YongHyeon

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