Ctrl + c should exit PCManFM without segmentation fault

Running PCManFM from Git

pcmanfm$ git describe
1.0.1-65-ge4c499c

in a terminal in foreground and hitting Ctrl +c I get a segmentation fault.

pcmanfm[3495]: segfault at 2c ip 00007f16d7d4b680 sp 00007fff3d7b18e8 error 4 in libglib-2.0.so.0.3200.3[7f16d7d02000+f5000]

In my experience other programs do not quit with a SIGSEGV, so maybe PCManFM could be adapted to not crash either and just quit. If not only for avoiding messages in the Linux kernel ring buffer and not scaring users. ;-)

Here is the backtrace.

Thread 4 (Thread 0x7fffef603700 (LWP 7526)):
#0 0x00007ffff4474ac3 in *__GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
_a3 = -1
_a1 = 93824996996096
resultvar = <optimized out>
_a2 = 1
oldtype = 0
result = <optimized out>
#1 0x00007ffff4e1b4d4 in g_main_context_poll (n_fds=1, fds=0x5555559df400, timeout=-1, context=0x5555559dd800, priority=<optimized out>)
at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
poll_func = 0x7ffff4e292c0 <g_poll>
#2 g_main_context_iterate (context=0x5555559dd800, block=block@entry=1, dispatch=dispatch@entry=1,
self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 1
allocated_nfds = <optimized out>
fds = 0x5555559df400
#3 0x00007ffff4e1b932 in g_main_loop_run (loop=0x5555559df2f0) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
__PRETTY_FUNCTION__ = "g_main_loop_run"
#4 0x00007ffff53e47f6 in gdbus_shared_thread_func (user_data=0x5555559dd7d0) at /tmp/buildd/glib2.0-2.32.3/./gio/gdbusprivate.c:277
data = 0x5555559dd7d0
#5 0x00007ffff4e3ddf5 in g_thread_proxy (data=0x5555559dc800) at /tmp/buildd/glib2.0-2.32.3/./glib/gthread.c:801
thread = 0x5555559dc800
#6 0x00007ffff4734b50 in start_thread (arg=<optimized out>) at pthread_create.c:304
__res = <optimized out>
pd = 0x7fffef603700
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737209448192, -2927196479540965793, 140737488340816, 140737209448896,
140737354125376, 3, 2927160055429058143, 2927175557013818975}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0},
data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
not_first_call = <optimized out>
freesize = <optimized out>
__PRETTY_FUNCTION__ = "start_thread"
#7 0x00007ffff447f70d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8 0x0000000000000000 in ?? ()
No symbol table info available.

Thread 1 (Thread 0x7ffff7fd0920 (LWP 7503)):
#0 g_source_is_destroyed (source=0x0) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:2414
No locals.
#1 0x00007ffff7884715 in clear_src_cache (user_data=user_data@entry=0x555555830c60) at gtk/fm-dnd-dest.c:394
dd = 0x555555830c60
#2 0x00007ffff7884e95 in fm_dnd_dest_dispose (object=0x555555830c60) at gtk/fm-dnd-dest.c:219
dd = 0x555555830c60
__PRETTY_FUNCTION__ = "fm_dnd_dest_dispose"
#3 0x00007ffff50de604 in g_object_unref (_object=0x555555830c60) at /tmp/buildd/glib2.0-2.32.3/./gobject/gobject.c:2981
weak_locations = 0x0
object = 0x555555830c60
old_ref = <optimized out>
__PRETTY_FUNCTION__ = "g_object_unref"
#4 0x000055555556cc8d in fm_desktop_destroy (object=0x7fffe8001000) at desktop.c:2424
self = 0x7fffe8001000
screen = 0x5555557b3000
#5 0x00007ffff50d9724 in g_closure_invoke (closure=0x5555558121a0, return_value=0x0, n_param_values=1, param_values=0x7fffffffda90,
invocation_hint=0x7fffffffda30) at /tmp/buildd/glib2.0-2.32.3/./gobject/gclosure.c:777
marshal = 0x7ffff50d8330 <g_type_class_meta_marshal>
marshal_data = 0x98
in_marshal = <optimized out>
real_closure = 0x555555812180
__PRETTY_FUNCTION__ = "g_closure_invoke"
#6 0x00007ffff50eaac5 in signal_emit_unlocked_R (node=node@entry=0x555555812360, detail=detail@entry=0,
instance=instance@entry=0x7fffe8001000, emission_return=emission_return@entry=0x0,
instance_and_params=instance_and_params@entry=0x7fffffffda90) at /tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3663
need_unset = <optimized out>
accumulator = 0x0
emission = {next = 0x0, instance = 0x7fffe8001000, ihint = {signal_id = 56, detail = 0, run_type = G_SIGNAL_RUN_CLEANUP},
state = EMISSION_STOP, chain_type = 93824995106128}
class_closure = 0x5555558121a0
hlist = 0x0
handler_list = 0x0
return_accu = 0x0
accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0,
v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0,
v_pointer = 0x0}}}
signal_id = 56
max_sequential_handler_number = 358
return_value_altered = <optimized out>
#7 0x00007ffff50f272c in g_signal_emit_valist (instance=0x7fffe8001000, signal_id=<optimized out>, detail=0,
var_args=var_args@entry=0x7fffffffdcd8) at /tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3296
instance_and_params = 0x7fffffffda90
signal_return_type = 4
param_values = 0x7fffffffdaa8
node = 0x555555812360
i = <optimized out>
n_params = 0
__PRETTY_FUNCTION__ = "g_signal_emit_valist"
#8 0x00007ffff50f28c2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>)
at /tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3352
var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffffffddb0, reg_save_area = 0x7fffffffdcf0}}
#9 0x00007ffff7363b70 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
No symbol table info available.
#10 0x00007ffff50df7a0 in g_object_run_dispose (object=0x7fffe8001000) at /tmp/buildd/glib2.0-2.32.3/./gobject/gobject.c:1061
__PRETTY_FUNCTION__ = "g_object_run_dispose"
#11 0x000055555556eeb4 in fm_desktop_manager_finalize () at desktop.c:2887
i = <optimized out>
#12 0x00005555555646e5 in main (argc=1, argv=0x7fffffffdf38) at pcmanfm.c:237
config = 0x5555557bd040
err = 0x0
inst = {prog_name = 0x555555571836 "pcmanfm", cb = 0x555555564e80 <single_inst_cb>, opt_entries = 0x5555557790b0, screen_num = 0,
io_channel = 0x555555781930, sock = 9, io_watch = 2}
quit
A debugging session is active.

Inferior 1 [process 7503] will be killed.

Quit anyway? (y or n) Not confirmed.
Continuing.
[Thread 0x7fffef603700 (LWP 7526) exited]

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
quit