Re: PSPP-BUG: psppire crashes importing large text file

[John Darrington]

          I encountered what must be the same bug while I was developing
          the text import implementation.  I didn't run into it toward the
          end of development and so I was kind of hoping it had just
          disappeared during code cleanup.  I see that I was wrong ;-(
          
          I'll try to debug this tonight, if I get a few minutes.


I managed to reproduce this and get a core dump.  It seems to happen
more often if one does a lot of window switching whilst it's doing the
import.  I think the clue is this:


#0  0x0809a40c in parse_field (ia=0xbfc180e8, row=2, column=5, outputp=0x0, 
tooltipp=0xbfc18c9c)
    at src/ui/gui/text-data-import-dialog.c:1690
#1  0x0809a7ab in on_query_output_tooltip (widget=0x844bdb0, wx=574, wy=70, 
keyboard_mode=0, 
    tooltip=0x8424070, ia=0xbfc180e8) at 
src/ui/gui/text-data-import-dialog.c:1782


My guess is that on_query_output_tooltip is getting called after its
data (the struct import_assistant) has been destroyed.  So if I'm
right, then we either need to set ia to NULL and test for this in the
callback, or disconnect the callback before the data is destroyed.

J'


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