SIGABRT double free detected in tcache 2

asked 2019-12-21 13:56:51 -0500

guru_florida
280 ●10 ●22 ●22

updated 2019-12-21 14:00:48 -0500

Running latest ROS2 eloquent release. Node aborting on startup in rclinit()

free(): double free detected in tcache 2
Aborted (core dumped)

GDB tells me the error is in the rclcpp::init(argc, argv) call which is the first statement of the node. It only started aborting after I added a yaml config file. So I added --cmake-args -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="-fsanitize=address" to enable the memory sanitizing features of GCC.

AddressSanitizer:DEADLYSIGNAL
=================================================================
==24262==ERROR: AddressSanitizer: SEGV on unknown address 0x00002dfffff1 (pc 0x7f3437322962 bp 0x00002dfffff1 sp 0x7ffecf4d24c0 T0)
==24262==The signal is caused by a WRITE memory access.
    #0 0x7f3437322961  (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x28961)
    #1 0x7f3437406014 in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x10c014)
    #2 0x7f3436d0a6de in __default_deallocate (/opt/ros2/eloquent/install/rcutils/lib/librcutils.so+0x46de)
    #3 0x7f34367308e8 in rcl_yaml_node_struct_fini (/opt/ros2/eloquent/install/rcl_yaml_param_parser/lib/librcl_yaml_param_parser.so+0x28e8)
    #4 0x7f343676ab8e in rcl_arguments_fini (/opt/ros2/eloquent/install/rcl/lib/librcl.so+0xfb8e)
    #5 0x7f3436769ab0 in rcl_parse_arguments (/opt/ros2/eloquent/install/rcl/lib/librcl.so+0xeab0)
    #6 0x7f3436772f19 in rcl_init (/opt/ros2/eloquent/install/rcl/lib/librcl.so+0x17f19)
    #7 0x7f34370f5d69 in rclcpp::Context::init(int, char const* const*, rclcpp::InitOptions const&) (/opt/ros2/eloquent/install/rclcpp/lib/librclcpp.so+0x3d9d69)
    #8 0x7f3437212fa7 in rclcpp::init(int, char const* const*, rclcpp::InitOptions const&) (/opt/ros2/eloquent/install/rclcpp/lib/librclcpp.so+0x4f6fa7)
    #9 0x55c93cebce1a in main /home/guru/src/humanoid/ros2/humanoid/src/lss_joint_publisher/src/lss_joint_states.cpp:96
    #10 0x7f3436943b6a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x26b6a)
    #11 0x55c93ceba619 in _start (/home/guru/src/humanoid/ros2/humanoid/build/lss_joint_publisher/lss_joint_states+0xf619)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/usr/lib/x86_64-linux-gnu/libasan.so.5+0x28961)

Yaml file is simple, just a single parameter

joints: 17

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I'm not entirely sure where right now, but I would suggest to report this to a GH issue tracker of one the repositories hosting this infrastructure, as I agree with you this does not seem like a proper way to handle this, and ROS Anwers Q&As like this one do not really work very well as bug reports.

gvdhoorn ( 2019-12-22 05:08:17 -0500 )edit

You're right. I thought the same after I wrote this and found the right repo ros2/rcl. Still worth keeping this for the next user though. ;) https://github.com/ros2/rcl/issues/553

guru_florida ( 2019-12-22 08:42:09 -0500 )edit

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