masaori335 opened a new issue #7315:
URL: https://github.com/apache/trafficserver/issues/7315
We faced crashes on v8.1.0 when the DNS server gets slow.
```
[ 0 ] libpthread-2.17.so waitpid
( :undefined )
[ 1 ] traffic_server crash_logger_invoke(int, siginfo_t*, void*)
( Crash.cc:165 )
[ 2 ] libpthread-2.17.so 0x7fbfcaebd630
( :undefined )
[ 3 ] libtscore.so.8.1.0 ink_atomiclist_push
( ink_queue.cc:533 )
[ 4 ] traffic_server ProtectedQueue::enqueue(Event*, bool)
( ProtectedQueue.cc:52 )
[ 5 ] traffic_server write_dns(DNSHandler*, bool)
( DNS.cc:undefined )
[ 6 ] traffic_server DNSHandler::mainEvent(int, Event*)
( DNS.cc:956 )
[ 7 ] traffic_server NetHandler::waitForActivity(long)
( UnixNet.cc:519 )
[ 8 ] traffic_server non-virtual thunk to
NetHandler::waitForActivity(long) ( UnixNet.cc:undefined )
[ 9 ] traffic_server EThread::execute_regular()
( UnixEThread.cc:278 )
[ 10 ] traffic_server spawn_thread_internal(void*)
( Thread.cc:85 )
[ 11 ] libpthread-2.17.so start_thread
( :undefined )
```
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