ajorgensen opened a new issue #2897: Potential double free crash in BaseConnection destructor URL: https://github.com/apache/incubator-heron/issues/2897 On version `0.17.8` it appears that there may be a double free error that causes a stream manager to crash sometimes in the destructor for the BaseConnection ``` [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `./heron-core/bin/heron-stmgr --topology_name=insights-speed-android --topology_'. Program terminated with signal SIGABRT, Aborted. #0 0x00007ff4f8033c37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 0x00007ff4f8033c37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #1 0x00007ff4f8037028 in __GI_abort () at abort.c:89 #2 0x0000000000513481 in tcmalloc::Log (mode=mode@entry=tcmalloc::kCrash, filename=filename@entry=0x6109c2 "src/tcmalloc.cc", line=line@entry=278, a=..., b=..., c=..., d=...) at src/internal_logging.cc:120 #3 0x000000000050ef35 in (anonymous namespace)::InvalidFree (ptr=ptr@entry=0x6f72646e412e6e6f) at src/tcmalloc.cc:278 #4 0x000000000040a3e2 in free_null_or_invalid (invalid_free_fn=0x50eee0 <(anonymous namespace)::InvalidFree(void*)>, ptr=ptr@entry=0x6f72646e412e6e6f) at src/tcmalloc.cc:1137 #5 (anonymous namespace)::do_free_helper (ptr=ptr@entry=0x6f72646e412e6e6f, heap_must_be_valid=true, heap=0x21720a0, invalid_free_fn=0x50eee0 <(anonymous namespace)::InvalidFree(void*)>) at src/tcmalloc.cc:1181 #6 0x0000000000609cdc in do_free_helper (invalid_free_fn=0x50eee0 <(anonymous namespace)::InvalidFree(void*)>, heap_must_be_valid=true, heap=0x21720a0, ptr=0x6f72646e412e6e6f) at src/thread_cache.h:381 #7 do_free_with_callback (invalid_free_fn=0x50eee0 <(anonymous namespace)::InvalidFree(void*)>, ptr=0x6f72646e412e6e6f) at src/tcmalloc.cc:1221 #8 do_free (ptr=0x6f72646e412e6e6f) at src/tcmalloc.cc:1230 #9 tc_free (ptr=0x6f72646e412e6e6f) at src/tcmalloc.cc:1581 #10 0x00000000004c1d35 in BaseConnection::disableRateLimit() () #11 0x00000000004c1d71 in BaseConnection::~BaseConnection() () #12 0x00000000004ca4b1 in Connection::~Connection() () #13 0x00000000004cdccc in BaseClient::OnClose(NetworkErrorCode) () #14 0x00000000004c1e7a in BaseConnection::internalClose(NetworkErrorCode) () #15 0x00000000004c2131 in BaseConnection::handleEvent(short) () #16 0x00000000004d643d in bufferevent_run_deferred_callbacks_locked (cb=<optimized out>, arg=0x87d6000) at bufferevent.c:161 #17 0x00000000004deb10 in event_process_active_single_queue (base=base@entry=0x28dc000, activeq=0x28883f0, max_to_process=max_to_process@entry=2147483647, endtime=endtime@entry=0x0) at event.c:1675 #18 0x00000000004df597 in event_process_active (base=0x28dc000) at event.c:1738 #19 event_base_loop (base=0x28dc000, flags=0) at event.c:1961 #20 0x000000000040b07c in main ()```
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