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Re: Mysterious memory corruption bug
From: |
Vladimir 'φ-coder/phcoder' Serbinenko |
Subject: |
Re: Mysterious memory corruption bug |
Date: |
Tue, 01 May 2012 22:16:15 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1 |
On 01.05.2012 22:09, Bean wrote:
> On Wed, May 2, 2012 at 4:06 AM, Vladimir 'φ-coder/phcoder' Serbinenko
> <address@hidden> wrote:
>> On 01.05.2012 22:02, Bean wrote:
>>> Hi,
>>>
>>> Yeah, I have a patch that save the buffer for later use when there is
>>> no data, it can solve the unnecessary alloc/free loop.
>> No, what I mean: allocate a buffer once for every card and then do
>> send/recv with only this buffer and copy to/from it when necessary. This
>> way if the card DMAs the packet to the same buffer it won't corrupt
>> anything.
> Hi,
>
> It's not ok with fragmentation, since there could be multiple ethernet
> packet for an ip packet, we need to store the buffer for assembling.
We use the buffer I said only for actual calls. It's copied to
newly-allocated packet as soon as the call returns.
--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
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- Mysterious memory corruption bug, Bean, 2012/05/01
- Re: Mysterious memory corruption bug, Vladimir 'φ-coder/phcoder' Serbinenko, 2012/05/01
- Re: Mysterious memory corruption bug, Bean, 2012/05/01
- Re: Mysterious memory corruption bug, Bean, 2012/05/01
- Re: Mysterious memory corruption bug, Vladimir 'φ-coder/phcoder' Serbinenko, 2012/05/01
- Re: Mysterious memory corruption bug, Bean, 2012/05/01
- Re: Mysterious memory corruption bug, Vladimir 'φ-coder/phcoder' Serbinenko, 2012/05/01
- Re: Mysterious memory corruption bug, Bean, 2012/05/01
- Re: Mysterious memory corruption bug,
Vladimir 'φ-coder/phcoder' Serbinenko <=
- Re: Mysterious memory corruption bug, Bean, 2012/05/01
- unsubscribe, Daniel Senderowicz, 2012/05/01
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