E1128 22:11:48.991003077    5124 sync_posix.cc:65]           assertion failed: pthread_mutex_lock(mu) == 0


*******************************
Caught signal SIGABRT
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/libtest_Score_Sutil_Slibgpr_Utest_Uutil.so(+0x1c63)[0x7f7c6836ec63]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7f7c67a4f390]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f7c66e07428]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7f7c66e0902a]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgpr_Ubase.so(+0x68ca)[0x7f7c67f088ca]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgrpc_Ubase_Uc.so(_ZN9grpc_core8channelz16ChannelzRegistry18InternalUnregisterEl+0x1e)[0x7f7c67f44d9e]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgrpc_Ubase_Uc.so(_ZN9grpc_core8channelz8BaseNodeD1Ev+0x28)[0x7f7c67f432b8]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgrpc_Uclient_Uchannel.so(_ZN9grpc_core19ConnectedSubchannelD2Ev+0x3d)[0x7f7c6825893d]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgrpc_Uclient_Uchannel.so(+0x25c58)[0x7f7c68258c58]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgrpc_Ubase_Uc.so(_ZN9grpc_core7ExecCtx5FlushEv+0x54)[0x7f7c67f584f4]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgrpc_Ubase_Uc.so(_ZN12GrpcExecutor10ThreadMainEPv+0x17f)[0x7f7c67f58e7f]
/b/f/w/bazel-out/k8-opt/bin/test/cpp/end2end/end2end_test@poller=epoll1.runfiles/com_github_grpc_grpc/test/cpp/end2end/../../../_solib_k8/liblibgpr_Ubase.so(+0x834d)[0x7f7c67f0a34d]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba)[0x7f7c67a456ba]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f7c66ed941d]
Aborted (core dumped)