ezelkow1 commented on pull request #7584:
URL: https://github.com/apache/trafficserver/pull/7584#issuecomment-846227247


   Im wondering if this may be causing crashes in some instances? I was trying 
to get our 9.1.x build up and running and while it was running autest here we 
had a lot of failures. Tracking those down they pointed to failures whenever H2 
was used, installed that rpm on a test machine just using the base config and 
installing the autest certs and setting up 443. Ran ats via gdb and issued the 
same curl and would get a crash:
   
   `#0  0x0000000000000000 in ?? 
   
   #1  0x00000000006057a0 in ClassAllocator<Http2Stream, 
true>::destroy_if_enabled (this=0x8bbca0 <http2StreamAllocator>, 
ptr=0x7fffc4b6d3e0) at ../../include/tscore/Allocator.h:180
   #2  Http2Stream::terminate_if_possible() () at Http2Stream.cc:486
   #3  0x0000000000607fff in Http2Stream::main_event_handler(int, void*) () at 
Http2Stream.cc:215
   #4  0x00000000007b48ed in Continuation::handleEvent (data=0xbc18c0, 
event=103, this=0x7fffc4b6d3e0) at I_Continuation.h:219
   #5  Continuation::handleEvent (data=0xbc18c0, event=103, 
this=0x7fffc4b6d3e0) at I_Continuation.h:215
   #6  EThread::process_event(Event*, int) () at UnixEThread.cc:164
   #7  0x00000000007b4eee in EThread::process_queue (this=this@entry=0x1884950, 
NegativeQueue=NegativeQueue@entry=0x3a8fe30, ev_count=ev_count@entry=0x3a8fe2c, 
nq_count=nq_count@entry=0x3a8fe28) at UnixEThread.cc:199
   #8  0x00000000007b5318 in EThread::execute_regular() () at UnixEThread.cc:259
   #9  0x00000000007b618e in EThread::execute (this=0x1884950) at 
UnixEThread.cc:364
   #10 EThread::execute (this=0x1884950) at UnixEThread.cc:342
   #11 0x00000000007b3e8a in spawn_thread_internal (a=0x2e85f90) at Thread.cc:92
   #12 0x00007ffff6deee65 in start_thread () from /lib64/libpthread.so.0
   #13 0x00007ffff60f488d in clone () from /lib64/libc.so.6`
   
   I would get a proper 404 response, via H2, but it looks like it was crashing 
in the cleanup after the session was done
   
   I backed our build up to just before this commit 
(b24f62f699d7ea9b7f4a6cd6168c005511fae666) and did not see the issue


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