Re: [lwip-users] Bug in pbuf.c regarding PBUF_POOL

[Jonathan Larmour]

Jonathan Larmour wrote:
[big ker-snip]

Actually I allowed myself to lose focus about what's really under 
discussion. There are multiple issues in play here. Christian does have a 
scenario in which the !SYS_LIGHTWEIGHT_PROT might be useful. In that case, 
the code should stay and that discussion can end.

Separately, there's the issue that the !SYS_LIGHTWEIGHT_PROT code is 
broken. Someone interested in that code (Christian?) may want to take that up.

And separately again, there's the issue that the stack code itself is not 
thread-safe, possibly if there is a ethernet input thread/bottom half 
(depending on implementation), and definitely so in the presence of SLIP or 
PPP, and the only present way to solve that is implementing 
SYS_LIGHTWEIGHT_PROT. At least in the current code.

Jifl
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