Date: Sat, 16 Feb 2008 01:38:46 -0500 From: Mike Tancsa <mike@sentex.net> To: pyunyh@gmail.com, freebsd-current@freebsd.org Subject: Re: CFT: vr(4) Message-ID: <200802160638.m1G6cSX1088707@lava.sentex.ca> In-Reply-To: <20071008061758.GF46694@cdnetworks.co.kr> References: <20071008061758.GF46694@cdnetworks.co.kr>
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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.
---Mike
>--
>Regards,
>Pyun YongHyeon
>
>
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