coverage_tests fail in specific order #10108
Description
when running coverage_tests as of 1223a2b in shard 27 of 50:
backtrace from gdb:
#0 raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x000000000f7c8f1e in Envoy::SignalAction::sigHandler(int, siginfo_t*, void*) ()
#2 <signal handler called>
#3 0x000000000e00f98f in grpc_core::LockfreeEvent::SetReady() ()
#4 0x000000000e0067e2 in fd_become_readable ()
#5 0x000000000e008e7e in pollable_process_events(grpc_pollset*, pollable*, bool) ()
#6 0x000000000e006bf1 in pollset_work ()
#7 0x000000000dffd034 in pollset_work(grpc_pollset*, grpc_pollset_worker**, long) ()
#8 0x000000000e010105 in grpc_pollset_work(grpc_pollset*, grpc_pollset_worker**, long) ()
#9 0x000000000e04af5a in cq_next(grpc_completion_queue*, gpr_timespec, void*) ()
#10 0x000000000e04a0ce in grpc_completion_queue_next ()
#11 0x000000000dde24ba in grpc_impl::CompletionQueue::AsyncNextInternal(void**, bool*, gpr_timespec) ()
#12 0x000000000dd9dbd1 in grpc_impl::CompletionQueue::Next(void**, bool*) ()
#13 0x000000000dd95bd5 in Envoy::Grpc::GoogleAsyncClientThreadLocal::completionThread() ()
#14 0x000000000dd9b91c in Envoy::Grpc::GoogleAsyncClientThreadLocal::GoogleAsyncClientThreadLocal(Envoy::Api::Api&)::$_0::operator()() const ()
#15 0x000000000dd9b8b1 in _ZNSt3__18__invokeIRZN5Envoy4Grpc28GoogleAsyncClientThreadLocalC1ERNS1_3Api3ApiEE3$_0JEEEDTclclsr3std3__1E7forwardIT_Efp_Espclsr3std3__1E7forwardIT0_Efp0_EEEOS9_DpOSA_ ()
#16 0x000000000dd9b831 in void std::__1::__invoke_void_return_wrapper<void>::__call<Envoy::Grpc::GoogleAsyncClientThreadLocal::GoogleAsyncClientThreadLocal(Envoy::Api::Api&)::$_0&>(Envoy::Grpc::GoogleAsyncClientThreadLocal::GoogleAsyncClientThreadLocal(Envoy::Api::Api&)::$_0&) ()
#17 0x000000000dd9b7f1 in std::__1::__function::__alloc_func<Envoy::Grpc::GoogleAsyncClientThreadLocal::GoogleAsyncClientThreadLocal(Envoy::Api::Api&)::$_0(std::__1::allocator<std::__1::allocator>, void ())>::operator()() ()
#18 0x000000000dd9a213 in std::__1::__function::__func<Envoy::Grpc::GoogleAsyncClientThreadLocal::GoogleAsyncClientThreadLocal(Envoy::Api::Api&)::$_0(std::__1::allocator<std::__1::allocator>, void ())>::operator()()
()
#19 0x00000000054bb1be in std::__1::__function::__value_func<void ()>::operator()() const ()
#20 0x00000000054bb0a9 in std::__1::function<void ()>::operator()() const ()
#21 0x000000000f78bbf6 in Envoy::Thread::ThreadImplPosix::ThreadImplPosix(std::__1::function<void ()>)::$_0::operator()(void*) const ()
#22 0x000000000f78bbb5 in Envoy::Thread::ThreadImplPosix::ThreadImplPosix(std::__1::function<void ()>)::$_0::__invoke(void*) ()
#23 0x00007efe89c6e6db in start_thread (arg=0x7efe83068700) at pthread_create.c:463
#24 0x00007efe8999788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Reproduce steps:
HEAPCHECK= TEST_SRCDIR=bazel-out/k8-fastbuild/bin/test/coverage/coverage_tests.runfiles TEST_TMPDIR=/tmp GTEST_TOTAL_SHARDS=50 GTEST_SHARD_INDEX=26 ENVOY_IP_TEST_VERSIONS=v4only bazel-bin/test/coverage/coverage_tests