me-no-dev
Fill buffer for a chunked response being called with buffer length of zero
Occasionally, the user routine that is used to fill the buffer for a chunked response is called with with a buffer length of zero. Returning any data in this case causes a stack smash protect panic. Returning zero (0) violates the interface definition since zero indicates that there is no more user data and that the response is complete.
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Have you tried returning RESPONSE_TRY_AGAIN as the content length?
In that case it should ask you again after a bit of time, hopefully with a bit more space in the buffer.
That would probably require something else reducing its ram usage in the meantime, but it might work.
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