bneradt opened a new pull request, #12325:
URL: https://github.com/apache/trafficserver/pull/12325
This addresses the following assertion crash in
HttpSM::attach_server_session:
hsm_release_assert(server_entry == nullptr);
The history shows this:
```
$1 = History(capacity=65, history_pos=118, num_entries=65) = {
HttpSM.cc:5018 do_cache_lookup_and_read
TS_EVENT_NONE (0) reent= 22,
HttpSM.cc:844 state_watch_for_client_abort
TS_EVENT_VCONN_READ_READY (100) reent= 1,
HttpSM.cc:844 state_watch_for_client_abort
TS_EVENT_VCONN_READ_READY (100) reent= 1,
HttpSM.cc:844 state_watch_for_client_abort
TS_EVENT_VCONN_READ_READY (100) reent= 1,
HttpSM.cc:844 state_watch_for_client_abort
TS_EVENT_VCONN_READ_READY (100) reent= 1,
HttpSM.cc:844 state_watch_for_client_abort
TS_EVENT_VCONN_READ_READY (100) reent= 1,
HttpSM.cc:2081 state_send_server_request_header
TS_EVENT_VCONN_WRITE_COMPLETE (103) reent= 1,
HttpSM.cc:6354 do_setup_client_request_body_tunnel
NO_EVENT (34463) reent= 1,
HttpSM.cc:3897 tunnel_handler_post_server
TS_EVENT_ERROR (3) reent= 0,
HttpSM.cc:2735 tunnel_handler_post
TS_EVENT_HTTP_TUNNEL_EVENT_DONE (2301) reent= 1,
HttpSM.cc:5979 handle_post_failure
TS_EVENT_NONE (0) reent= 1,
HttpCacheSM.cc:104 state_cache_open_read
TS_EVENT_CACHE_OPEN_READ_FAILED (1103) reent= -31073,
HttpSM.cc:2561 state_cache_open_read
TS_EVENT_CACHE_OPEN_READ_FAILED (1103) reent= 7,
HttpSM.cc:2221 add_to_existing_request
NO_EVENT (34463) reent= 11,
HttpSM.cc:5018 do_cache_lookup_and_read
TS_EVENT_NONE (0) reent= 6,
HttpSM.cc:1769 state_http_server_open
TS_EVENT_VCONN_EOS (104) reent= 1,
HttpSM.cc:1769 state_http_server_open
Unknown event 1400 (1400) reent= 1}
```
Notice that an error occurs in tunnel_handler_post_server with the
expectation that tunnel_handler_post would handle it. But tunnel_handler_post
only handled UA failures, not SERVER ones. This updates it to handle server
failures too.
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