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Re: [lwip-users] PING problem
From: |
Mário Luzeiro |
Subject: |
Re: [lwip-users] PING problem |
Date: |
Tue, 24 Dec 2019 17:36:08 +0000 |
I think I had similar issues, the problem was a bug in the DMA libraries used
by Ethernet driver.
Mario
________________________________________
From: lwip-users <lwip-users-bounces+mrluzeiro=address@hidden> on behalf of ttc
<address@hidden>
Sent: 24 December 2019 06:16
To: address@hidden
Subject: [lwip-users] PING problem
I have the following problem with lwip-2.1.2
I have implemented the socket API so that it can be used, but in rare cases
the connection is broken.
While investigating the cause, I discovered that the PING response was
interrupted on the way.
Attach the image at that time.
<http://lwip.100.n7.nabble.com/file/t2330/ping.jpg>
When ping became abnormal, we logged with waireshark.
<http://lwip.100.n7.nabble.com/file/t2330/wireshark.jpg>
If you check the log, you can see that the reply is delayed for the request.
For example, a reply of No. 165 is returned for a request of No. 149.
I think Requests and replies are recorded alternately under normal
conditions, but there are some places where this is not the case.
what I can see to understand the problem?
--
Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html
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