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[lwip-devel] [bug #46467] ip_frag() shouldn't modify pbuf in case of a r
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From: |
Simon Goldschmidt |
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Subject: |
[lwip-devel] [bug #46467] ip_frag() shouldn't modify pbuf in case of a retransmission |
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Date: |
Thu, 19 Nov 2015 06:29:33 +0000 |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36 |
Follow-up Comment #1, bug #46467 (project lwip):
> [..] that seems to work for us.
The patch might indeed work *for you*, but it's not a general solution as
pbufs may be put on a list to be transmitted later.
If not also done in the netif driver, at least etharp has to queue UDP packets
when the MAC address has to be resolved before sending.
Could you clearly describe what you mention as "problem"?
In fact, the real problem to me is that TCP keeps a reference to pbufs while
all other TX functions pass a buffer for sending to the stack and don't reuse
it later...
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