OpenVPN / OpenVPN/openvpn3

Randomly getting this exception on macOS

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#295 19 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
Stars
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Forks
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Description

UDP send exception: send: No buffer space available

We are using 3.8.3 with ovpnagent, without any special patches. Problem occurs relatively rarely on both Intel and Apple Silicon based machines. We are not getting anything else suspicious in log files except this line and subsequent connection crash. Could try to provide addition details but for know that's all we observe.

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Research direction

Start by investigating the reported UDP send exception: send: No buffer space available on macOS with OpenVPN 3.8.3 and ovpnagent, using the issue's Intel and Apple Silicon context. No source file, test, reproduction steps, or entry point is identified; done would require identifying the intermittent cause and preventing the subsequent connection crash.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, macos
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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