Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending

Thu, 24 Nov 2016 13:18:38 -0800 

Hi Marco,

On Thu, Nov 24, 2016 at 10:12:13PM +0100, Marco Jakobs wrote:
> 
> It can be as slow as possible (I'm using an RTOS, so it's not blocking 
> anything) ... but it should never loose data ;-)

Using an RTOS doesn't change anything, your uart tx function must wait 
if your fifo/queue/whatever is full.

But… PPPoS in lwIP 1.4.1 is not thread safe and hard to do right. On 
which context are you calling the PPP input function ?

Sylvain

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