sxia-aviatrix commented on code in PR #13574:
URL: https://github.com/apache/trafficserver/pull/13574#discussion_r3833579771
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src/proxy/http/HttpSM.cc:
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@@ -2145,6 +2145,17 @@ HttpSM::state_read_server_response_header(int event,
void *data)
// If there is a post body in transit, give up on it
if (tunnel.is_tunnel_alive()) {
tunnel.abort_tunnel();
+ // abort_tunnel() does not clean up vc_table entries. If a request
+ // transform is present, post_transform_info.entry still points at the
+ // TransformVConnection whose chain will be freed by the abort cascade.
+ // Clean it up now so cleanup_all() in kill_this() does not call
+ // do_io_close() on freed memory.
Review Comment:
I can reproduce the ATS crash with a proprietary plugin under stress, but I
can't share that stack trace. This fix can resolve the crash. I will keep
current null_transform_request plugin and assert as the way to reproduce the
bug. Please let me know if this is not sufficient or anything else we need
other than assert and gdb.
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