[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-12-11 Thread Ben Brown
Change by Ben Brown : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue37226> ___ ___ Python-bugs-list

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-07-22 Thread Ben Brown
Ben Brown added the comment: I can fully confirm the issue is due to flow control or lack of in my code the system runs out of resources and this is when it errors, I have implemented flow control in my protocol and it now works without errors. One thing I did find is that the documentation

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-07-19 Thread Ben Brown
Ben Brown added the comment: With some more research it looks like the issue is flow related, I experimented with the StreamWriter in a simple server and using that plus drain() appears to have worked an I no longer get the error. I have added my new server to the gist I posted above

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-07-09 Thread Ben Brown
Ben Brown added the comment: Maayan Keshet do you have a minimal example it would be interesting to compare against our code and see if there is something we are both doing that could help narrow down the issue. -- ___ Python tracker <ht

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-24 Thread Ben Brown
Ben Brown added the comment: Hi is there any update on this issue, were you able to replicate the error with the minimal example I provided or is there any additional information I can provide. -- ___ Python tracker <https://bugs.python.

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-12 Thread Ben Brown
Ben Brown added the comment: I have created a minimal example if that helps to show the issue https://gist.github.com/bobthemac/031213b8e37960ee805f2ae1e6990b60 -- ___ Python tracker <https://bugs.python.org/issue37

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-11 Thread Ben Brown
Ben Brown added the comment: I tested an older version of OpenSSL 1.0.2g and I get the same error on that -- ___ Python tracker <https://bugs.python.org/issue37

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-11 Thread Ben Brown
Ben Brown added the comment: I am using the version I mentioned above 1.1.0 and TLS 1.2, I am sorry I can't be of more help. -- ___ Python tracker <https://bugs.python.org/is

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-11 Thread Ben Brown
Ben Brown added the comment: That's a shame, which version should it work on I don't mind downgrading for now to fix the issue as a workaround. -- ___ Python tracker <https://bugs.python.o

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-11 Thread Ben Brown
Ben Brown added the comment: The OpenSSL version is OpenSSL 1.1.0j 20 Nov 2018 -- ___ Python tracker <https://bugs.python.org/issue37226> ___ ___ Python-bug

[issue37226] Asyncio Fatal Error on SSL Transport - IndexError Deque Index Out Of Range

2019-06-11 Thread Ben Brown
New submission from Ben Brown : I have been getting an intermittent errors when using asyncio with SSL. The error always occurs in the _process_write_backlog method in asyncio's sslproto.py file. I have looked at lots of possibilities as to what the cause is and found that for some r