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[lwip-devel] [bug #57452] CHECKSUM_ON_COPY leads to random bit error in
From: |
Victor Brzeski |
Subject: |
[lwip-devel] [bug #57452] CHECKSUM_ON_COPY leads to random bit error in TCP checksum |
Date: |
Thu, 26 Mar 2020 21:39:08 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0 |
Follow-up Comment #3, bug #57452 (project lwip):
Hello Simon,
I spent some time this week looking at this issue.
- Very likely not an issue with the memcpy/csum routines
- Likely not an issue my netif (I did make some improvements)
- UDP checksum on copy works fine
- Turning off all non-lwip macros doesn't aid the problem
- Using lwIP's checksum on copy algorithm doesn't aid the problem
I may have come full circle with my work on this, but it doesn't seem to be
present with UDP from what I can tell so far.
I will try and dedicate a bit more time in the next few months to work on this
further, but I need to ignore the feature for now.
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