It crashes also when selecting the TreeView, instead of the Places view 
and when unmounting from a terminal with the "umount" command, here's a 
new backtrace :

Program received signal SIGSEGV, Segmentation fault.
0x00356180 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
(gdb) bt
#0  0x00356180 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#1  0x0045f41d in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#2  0x0045f71e in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#3  0x00524deb in gtk_widget_queue_resize () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#4  0x004f6516 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#5  0x00a925ba in g_cclosure_marshal_VOID__BOXED () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#6  0x00a8f624 in g_closure_invoke () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#7  0x00aa2029 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#8  0x00aaa6d0 in g_signal_emit_valist () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#9  0x00aaa8d3 in g_signal_emit () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#10 0x004dc44a in gtk_tree_model_row_deleted () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#11 0x0028ed6a in remove_item (model=0x8308d00, item_l=0x81f4940) at 
gtk/fm-dir-tree-model.c:629
#12 0x0028eddb in on_folder_files_removed (folder=0x8397ef0, 
files=0x81fcfa0, item_l=0x81f4710) at gtk/fm-dir-tree-model.c:757
#13 0x00a9276a in g_cclosure_marshal_VOID__POINTER () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#14 0x00a8f624 in g_closure_invoke () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#15 0x00aa2029 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#16 0x00aaa6d0 in g_signal_emit_valist () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#17 0x00aaa8d3 in g_signal_emit () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#18 0x00720fed in on_idle (folder=0x8397ef0) at base/fm-folder.c:299
#19 0x00b177f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#20 0x00b19d8a in g_main_context_dispatch () from 
/lib/i386-linux-gnu/libglib-2.0.so.0
#21 0x00b1a195 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0x00b1a5db in g_main_loop_run () from 
/lib/i386-linux-gnu/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#23 0x003e1bdf in gtk_main () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#24 0x0805236a in main (argc=1, argv=0xbffff8d4) at pcmanfm.c:199


that call to gtk_widget_queue_resize () is strange.

here the complete backtrace of my previous post, when selecting the 
Places View, and clicking the unmount popup menu :

Program received signal SIGSEGV, Segmentation fault.
0x00356180 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
(gdb) bt
#0  0x00356180 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#1  0x0045f41d in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#2  0x0045f71e in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#3  0x00524deb in gtk_widget_queue_resize () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#4  0x004f6516 in ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#5  0x00a925ba in g_cclosure_marshal_VOID__BOXED () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#6  0x00a8f624 in g_closure_invoke () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#7  0x00aa2029 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#8  0x00aaa6d0 in g_signal_emit_valist () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#9  0x00aaa8d3 in g_signal_emit () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#10 0x004dc44a in gtk_tree_model_row_deleted () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#11 0x003df427 in gtk_list_store_remove () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#12 0x0028c996 in on_vol_removed (vm=0xb7402168, vol=0x831fd20, 
user_data=0x835b030) at gtk/fm-places-model.c:214
#13 0x00a92930 in g_cclosure_marshal_VOID__OBJECTv () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#14 0x00a8f8c7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#15 0x00aaa23e in g_signal_emit_valist () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#16 0x00aaad2f in g_signal_emit_by_name () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#17 0x009a50dd in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#18 0x00a92930 in g_cclosure_marshal_VOID__OBJECTv () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#19 0x00a8f8c7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#20 0x00aaa23e in g_signal_emit_valist () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#21 0x00aaad2f in g_signal_emit_by_name () from 
/usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#22 0x012735d6 in ?? () from 
/usr/lib/i386-linux-gnu/gio/modules/libgioremote-volume-monitor.so
---Type <return> to continue, or q <return> to quit---
#23 0x00b177f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0x00b19d8a in g_main_context_dispatch () from 
/lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x00b1a195 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x00b1a5db in g_main_loop_run () from 
/lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x003e1bdf in gtk_main () from 
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#28 0x0805236a in main (argc=1, argv=0xbffff8d4) at pcmanfm.c:199


It seems to segfault in the TreeView Model or the Places Model when 
removing the item at first glance,
If someone have any clue about this.

Regards.

-- 
Axel FILMORE


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