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Bug 138685 - segfault when "fixed-height-mode" property in treeview is set on.
segfault when "fixed-height-mode" property in treeview is set on.
Status: RESOLVED DUPLICATE of bug 138082
Product: gtk+
Classification: Platform
Component: Widget: GtkTreeView
2.3.x
Other Linux
: High critical
: ---
Assigned To: Nobody's working on this now (help wanted and appreciated)
Python bindings maintainers
Depends on:
Blocks:
 
 
Reported: 2004-03-31 21:33 UTC by Riccardo Attilio Galli
Modified: 2004-12-22 21:47 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
crash.py (486 bytes, text/plain)
2004-04-01 15:14 UTC, Scott Tsai 		Details
minimal_crash.py (255 bytes, application/octet-stream)
2004-04-01 16:16 UTC, Scott Tsai 		Details
crash.c (434 bytes, text/plain)
2004-04-01 16:19 UTC, Scott Tsai 		Details

Description Riccardo Attilio Galli 2004-03-31 21:33:47 UTC 
'''
When the app is started, there are a treeview and two buttons.
Button 'modify model' simply modify the text in tree's rows.
If you click, it works.
After 'fixed-height-mode' is set by clicking on the second button,
clicking on button 'modify model' will now generate a segmentation fault
'''

import gtk

class MyTree(gtk.TreeView):
    def __init__(self,*args):
        super(MyTree,self).__init__(*args)
        
        renderer=gtk.CellRendererText()
        col=gtk.TreeViewColumn('readme',renderer)
        col.add_attribute(renderer, 'text', 1)
        col.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
        self.append_column(col)
        
        self.model = gtk.TreeStore(gobject.TYPE_PYOBJECT,str)
        self.set_model(self.model)
        
        self.text='second text'
        self.refreshModel()
    
    def refreshModel(self):
        print 'inside refreshModel'
        self.model.clear()
        if self.text=='first text':
            self.text='second text'
        else:
            self.text='first text'
        
        for i in range(4):
            iter=self.model.insert_before(None,None)
            self.model.set_value(iter,1,self.text)
        print 'exiting refreshModel'


def main():
    window = gtk.Window()
    window.connect('destroy', lambda win: gtk.main_quit())
    window.set_size_request(300,200)
    
    vbox=gtk.VBox()
    
    tree=MyTree()
    vbox.pack_start(tree,1,1,0)
    
    hbox=gtk.HBox()
    btn1=gtk.Button('modify model')
    btn1.connect('clicked',lambda *x:tree.refreshModel())
    
    btn2=gtk.Button('set fixed-height-mode on')
    btn2.connect('clicked',lambda *x: tree.set_property('fixed-height-mode',1))
    hbox.pack_start(btn1,1,1,0)
    hbox.pack_start(btn2,1,1,0)
    
    vbox.pack_start(hbox,0,1,0)
    
    window.add(vbox)
    window.show_all()
    
    gtk.main()

if __name__ == '__main__':
    main()
Comment 1 Johan (not receiving bugmail) Dahlin 2004-03-31 22:03:19 UTC 
I can not reproduce on my machine.

Can you attach a backtrace from gdb?
Comment 2 Graham Ashton 2004-03-31 22:42:15 UTC 
This is from pygtk 2.2.0.

(gdb) run bug.py
Starting program: /usr/bin/python bug.py
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...inside refreshModel
exiting refreshModel
inside refreshModel
 
Program received signal SIGSEGV, Segmentation fault.
0x407ded1b in _gtk_rbtree_node_set_height () from /usr/lib/libgtk-x11-2.0.so.0
(gdb) backtrace

+ Trace 45574

  • #0 _gtk_rbtree_node_set_height
    from /usr/lib/libgtk-x11-2.0.so.0
  • #1 _gtk_tree_view_child_move_resize
    from /usr/lib/libgtk-x11-2.0.so.0
  • #2 _gtk_marshal_VOID__BOXED_BOXED
    from /usr/lib/libgtk-x11-2.0.so.0
  • #3 g_closure_invoke
    from /usr/lib/libgobject-2.0.so.0
  • #4 g_signal_emit_by_name
    from /usr/lib/libgobject-2.0.so.0
  • #5 g_signal_emit_valist
    from /usr/lib/libgobject-2.0.so.0 






Comment 3


Riccardo Attilio Galli





          2004-03-31 23:52:54 UTC
        



this is from pygtk-2.3.90

(gdb) run bug.py
Starting program: /usr/bin/python bug.py
(no debugging symbols found)...(no debugging symbols found)...[Thread debugging
using libthread_db enabled]
[New Thread 16384 (LWP 28020)]

(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...inside refreshModel
exiting refreshModel
inside refreshModel

Program received signal SIGSEGV, Segmentation fault.




+
Trace
    45578






Thread 16384
          (LWP 28020)


    

  • 
#0
_gtk_rbtree_node_set_height

    
                from
                /usr/lib/libgtk-x11-2.0.so.0

    

    • 

  • 
#1
_gtk_tree_view_child_move_resize

    
                from
                /usr/lib/libgtk-x11-2.0.so.0

    

    • 













Comment 4


Scott Tsai





          2004-04-01 15:13:42 UTC
        



I can reproduce this, necessary elements:
    view.set_property('fixed-height-mode',1)
    model.clear()
    model.append(None)

attached minimal crash inducing python code, crash.py
complete stack trace:




+
Trace
    45593






    

  • 
#0
_gtk_rbtree_node_set_height

    
                at gtkrbtree.c
                  line
                  724

    

    • 

  • 
#0
_gtk_rbtree_node_set_height

    
                at gtkrbtree.c
                  line
                  724

    

    • 

  • 
#1
gtk_tree_view_row_inserted

    
                at gtktreeview.c
                  line
                  6744

    

    • 

  • 
#2
_gtk_marshal_VOID__BOXED_BOXED

    
                at gtkmarshalers.c
                  line
                  1028

    

    • 

  • 
#3
g_closure_invoke

    
                at gclosure.c
                  line
                  437

    

    • 

  • 
#4
signal_emit_unlocked_R

    
                at gsignal.c
                  line
                  2436

    

    • 

  • 
#5
g_signal_emit_valist

    • 

  • 
#6
g_signal_emit

    
                at gsignal.c
                  line
                  2239

    

    • 

  • 
#7
gtk_tree_model_row_inserted

    
                at gtktreemodel.c
                  line
                  1374

    

    • 

  • 
#8
gtk_tree_store_append

    
                at gtktreestore.c
                  line
                  1400

    

    • 

  • 
#9
_wrap_gtk_tree_store_append

    
                at gtktreeview.override
                  line
                  1765

    

    • 

  • 
#10
PyCFunction_Call

    
                at Objects/methodobject.c
                  line
                  108

    

    • 

  • 
#11
call_function

    
                at Python/ceval.c
                  line
                  3454

    

    • 

  • 
#12
eval_frame

    
                at Python/ceval.c
                  line
                  2124

    

    • 

  • 
#13
PyEval_EvalCodeEx

    
                at Python/ceval.c
                  line
                  2678

    

    • 

  • 
#14
PyEval_EvalCode

    
                at Python/ceval.c
                  line
                  564

    

    • 

  • 
#15
run_node

    
                at Python/pythonrun.c
                  line
                  1253

    

    • 

  • 
#16
PyRun_SimpleFileExFlags

    
                at Python/pythonrun.c
                  line
                  850

    

    • 

  • 
#17
Py_Main

    
                at Modules/main.c
                  line
                  413

    

    • 

  • 
#18
main

    
                at Modules/python.c
                  line
                  23

    

    • 













Comment 5


Scott Tsai





          2004-04-01 15:14:52 UTC
        



Created attachment 26212 [details]
crash.py






Comment 6


Jon Trowbridge





          2004-04-01 15:44:36 UTC
        



I think this is a gtk+ bug.






Comment 7


Scott Tsai





          2004-04-01 16:16:58 UTC
        



Created attachment 26213 [details]
minimal_crash.py

reduce the crash inducing code further






Comment 8


Scott Tsai





          2004-04-01 16:19:05 UTC
        



Created attachment 26214 [details]
crash.c

The equavelent C code also segfaults.
This is either a bug in gtk or a usage that should be catched in pygtk.
I'll search the gtk bugzilla for this ..






Comment 9


Scott Tsai





          2004-04-01 16:23:32 UTC
        



This is bug #138082 on GtkTreeView in gtk.
There is an attached patch that at least prevents the segfault there.






Comment 10


Johan (not receiving bugmail) Dahlin





          2004-04-01 16:27:52 UTC
        



Product -> gtk+






Comment 11


Johan (not receiving bugmail) Dahlin





          2004-04-01 16:29:27 UTC
        




*** This bug has been marked as a duplicate of 138082 ***