.
Thread 1 (Thread 0x7f2b56055700 (LWP 9767)):
#0  0x00007f2ba2a9d4c7 in chdir () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ba301ace2 in do_exec (child_err_report_fd=17, stdin_fd=-1, stdout_fd=23, stderr_fd=-1, working_directory=working_directory@entry=0x5597c72dd0a0 "/tmp", argv=argv@entry=0x7f2b56054d00, envp=0x0, close_descriptors=1, search_path=1, search_path_from_envp=0, stdout_to_null=0, stderr_to_null=1, child_inherits_stdin=0, file_and_argv_zero=0, child_setup=0x7f2b86d99530, user_data=0xa) at ../../../../glib/gspawn.c:1143
        __func__ = "do_exec"
#2  0x00007f2ba301b8f1 in fork_exec_with_pipes (intermediate_child=1, working_directory=0x5597c72dd0a0 "/tmp", argv=0x7f2b56054d00, envp=0x0, close_descriptors=1, search_path=search_path@entry=1, search_path_from_envp=0, stdout_to_null=0, stderr_to_null=1, child_inherits_stdin=0, file_and_argv_zero=0, cloexec_pipes=0, child_setup=0x7f2b86d99530, user_data=0xa, child_pid=0x0, standard_input=0x0, standard_output=0x7f2b56054cf4, standard_error=0x0, error=0x7f2b56054cf8) at ../../../../glib/gspawn.c:1424
        pid = 0
        stdin_pipe = {-1, -1}
        stdout_pipe = {-1, 23}
        stderr_pipe = {-1, -1}
        child_err_report_pipe = {-1, 17}
        child_pid_report_pipe = {-1, -1}
        pipe_flags = 0
        status = 0
#3  0x00007f2ba301c335 in g_spawn_async_with_pipes (working_directory=<optimized out>, argv=<optimized out>, envp=<optimized out>, flags=<optimized out>, child_setup=<optimized out>, user_data=<optimized out>, child_pid=0x0, standard_input=0x0, standard_output=0x7f2b56054cf4, standard_error=0x0, error=0x7f2b56054cf8) at ../../../../glib/gspawn.c:654
        __func__ = "g_spawn_async_with_pipes"
#4  0x00007f2b86d996df in tracker_extract_get_metadata () at /usr/lib/x86_64-linux-gnu/tracker-1.0/extract-modules/libextract-ps.so
#5  0x00005597c624ac6c in  ()
#6  0x00005597c624b2d3 in  ()
#7  0x00005597c624b330 in  ()
#8  0x00007f2ba2ffbf65 in g_thread_proxy (data=0x7f2b78005190) at ../../../../glib/gthread.c:784
        thread = 0x7f2b78005190
#9  0x00007f2ba2d736da in start_thread (arg=0x7f2b56055700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f2b56055700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139824103511808, 1017195446828459677, 140720739909486, 140720739909487, 139824103512512, 139824103511808, -1131703318182435171, -1131942337578998115}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0x00007f2ba2aad17f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105