RE: [lwip-users] help! a problem about using semaphore

Tue, 17 Oct 2006 14:13:50 -0700

What does ‘fresh’ mean, in the context of ‘When I fresh the network frequently’?  Offhand, I would say that you have made some assumptions about the startup state of memory in your sys_arch implementation, and when the stack is ‘freshed’, there are some global or static data elements which are not being reinitialized.

 

My 2 cents.

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wang Zheng
Sent: Thursday, October 12, 2006 11:21 PM
To: 群问 lwip
Subject: [lwip-users] help! a problem about using semaphore

 

hi all,

I met the following problem in using lwip1.1.0 which is base of my embeded http server.

 

phenomena:
When I fresh the network frequently,there is a error which is "the semaphore has been deleted".
I traced the error and found every time the error occur when call
TCP_EVENT_SENT(pcb, pcb->acked, err), line 334 in "tcp_in.c".  

 

question:
Is there anybody has ever met the same problem ?
Is there anybody can give me some advice to find the reason of the promble?

 

Thanks.

 

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