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Re: [lwip-users] netconn_new() hangs when link is down

From: address@hidden
Subject: Re: [lwip-users] netconn_new() hangs when link is down
Date: Tue, 17 Feb 2015 21:32:04 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0

Bastiaan van Kesteren wrote:
Once the link has been up and goes down, the very next call
to one of these 'client' applications  causes it to hang;
The sys_arch_sem_wait() never returns, the semaphore is never signalled.
Plugging the network cable back in doesn't resolve the issue, a restart
is required. I'd much rather have some kind of ERR_CONN return value

Anyone with idea's about whats going on?

No, but try to have a look at lwip_stats, maybe you're out of memory in one of the pools?

If that fails, try enabling tracing.


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