<div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">I am not very familiar with treeview, but the "path" in the set_cursor call seems to be OK (just ran some tests) but maybe it is a race condition of some sort: pointing to the new last entry in the list before the list knows it has a new last entry? In any case, simply eliminating the call to set_cursor seems to be enough to address the crash problem. What is the first part of the patch trying to accomplish? </blockquote><div> I have seen a crash in Fedora 14 . The error is the second in the ticket: <pre class="wiki">1305794514.172503 DEBUG infoslicer: load article b5ae3528-81f3-11e0-873b-0017c4a748fe Gdk-ERROR **: The program 'sugar-activity' received an X Window System error. This probably reflects a bug in the program. The error was 'RenderBadPicture (invalid Picture parameter)'. (Details: serial 8423 error_code 159 request_code 147 minor_code 6) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) aborting... Terminated by signal 6, pid 3283 data (None, <open file '<fdopen>', mode 'w' at 0x8cd8f98>, dbus.ByteArray('76b6586b426d3aaa9a710551c59d77fae4d574e6', variant_level=1)) </pre><pre class="wiki">I could reproduce it several times. </pre>If you want, I can send you two different patches Gonzalo </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> -walter -- Walter Bender Sugar Labs <a href="http://www.sugarlabs.org" target="_blank">http://www.sugarlabs.org</a> </blockquote></div> -- Gonzalo Odiard SugarLabs Argentina