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Maxim Dounin
4e8a73adaa
When c->recv_chain() returns an error, it is possible that we already have some data previously read, e.g., in preread buffer. And in some cases it may be even a complete response. Changed c->recv_chain() error handling to process the data, much like it is already done if kevent reports about an error. This change, in particular, fixes processing of small responses when an upstream fails to properly close a connection with lingering and therefore the connection is reset, but the response is already fully obtained by nginx (see ticket #1037).