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David Peoples

2005-Feb-18 16:35 UTC

[fxruby-users] FXTable segfaults after multiple setTableSize calls

When I empty and refill an FXTable multiple times with a large data set 
(10,000 rows x 1 column in the example below, around 1000 rows x 6 
columns in a more complicated app), the application eventually fails 
with a segmentation fault. The number of repetitions required to produce 
the segfault is rather random, ranging from just a couple reps to 15 or 
20 in some trials. The program disappears (window goes away) apparently 
during or just after the table is filled, leaving the following message 
at the command prompt:

C:/Data/Ruby/pos/stockviewertest/mainv5c.rb:21: [BUG] Segmentation fault
ruby 1.8.2 (2004-12-25) [i386-mswin32]

The platform is Windows XP Home with service pack 2. The base Ruby 
installation is the "One Click Ruby Installer" version 1.8.2-14 final 
(ruby182-14.exe). I''ve installed FXRuby version 1.2.3 on top of the 
version included with the one click installer 
(FXRuby-1.2.3-ruby182.exe). fxversion() reports "1.2.13" from the irb 
command prompt. The machine has a Pentium 4 and 256mb ram.

If someone can run the example code below and it fails like I''m seeing,
let me know. If you see an obvious programming error on my part, please 
tell me -- I''m new to Ruby and that''s a serious possibility.
If you can
run the code on Windows and it *doesn''t* fail, let me know that --
maybe
it is some other problem on this machine I''ll have to track down 
(display driver?).

Thanks for your help.

David Peoples

-------------------------------------------------------------------------

require "fox12"
include Fox

class TestWindow < FXMainWindow

   TABLE_SIZE = 10_000

   def initialize(app)
     super(app, "MyTest", nil, nil, DECOR_ALL, 0, 0, 600, 400, 0, 0)
     mainFrame = FXVerticalFrame.new(self, LAYOUT_FILL_X|LAYOUT_FILL_Y)
     @table = FXTable.new(mainFrame, nil, 0, LAYOUT_FILL_X|LAYOUT_FILL_Y)
     goButton = FXButton.new(mainFrame, " Go method 1")
     goButton.connect(SEL_COMMAND) { fillTable }
     goButton2 = FXButton.new(mainFrame, " Go method 2")
     goButton2.connect(SEL_COMMAND) { fillTable2 }
   end

   # fails after 2 to 15-20 iterations
   def fillTable
     @table.setTableSize(TABLE_SIZE, 1)
     (0...TABLE_SIZE).each do |r|
       @table.setItemText(r, 0, "#{r}")
     end
     @table.setFocus
   end

   # seems to require more iterations, but still fails
   def fillTable2
     @table.setTableSize(0, 1)
     (0...TABLE_SIZE).each do |r|
       @table.insertRows(r)
       @table.setItemText(r, 0, "#{r}")
     end
     @table.setFocus
   end

   def create
     super
     show(PLACEMENT_SCREEN)
   end

end

def runme
   application = FXApp.new("MyTest", "FoxTest")
   TestWindow.new(application)
   application.create
   application.run
end

runme

-------------------------------------------------------------------------

-- 
David Peoples  davidp@touringcyclist.com
The Touring Cyclist  http://www.touringcyclist.com
11816 St. Charles Rock Road, Bridgeton, MO 63044
tel: 314-739-4648  fax: 314-739-4972

DeZonia, Barry

2005-Feb-18 16:50 UTC

head link

[fxruby-users] FXTable segfaults after multiple setTableSize calls

The app fails for me too selecting either button (after 8-20 times).

Windows, Ruby 1.8.2-14 final, fxruby 1.2.2

-----Original Message-----
From: fxruby-users-bounces@rubyforge.org
[mailto:fxruby-users-bounces@rubyforge.org] On Behalf Of David Peoples
Sent: Friday, February 18, 2005 3:39 PM
To: fxruby-users
Subject: [fxruby-users] FXTable segfaults after multiple setTableSize calls

When I empty and refill an FXTable multiple times with a large data set 
(10,000 rows x 1 column in the example below, around 1000 rows x 6 
columns in a more complicated app), the application eventually fails 
with a segmentation fault. The number of repetitions required to produce 
the segfault is rather random, ranging from just a couple reps to 15 or 
20 in some trials. The program disappears (window goes away) apparently 
during or just after the table is filled, leaving the following message 
at the command prompt:

C:/Data/Ruby/pos/stockviewertest/mainv5c.rb:21: [BUG] Segmentation fault
ruby 1.8.2 (2004-12-25) [i386-mswin32]

The platform is Windows XP Home with service pack 2. The base Ruby 
installation is the "One Click Ruby Installer" version 1.8.2-14 final 
(ruby182-14.exe). I''ve installed FXRuby version 1.2.3 on top of the 
version included with the one click installer 
(FXRuby-1.2.3-ruby182.exe). fxversion() reports "1.2.13" from the irb 
command prompt. The machine has a Pentium 4 and 256mb ram.

If someone can run the example code below and it fails like I''m seeing,
let me know. If you see an obvious programming error on my part, please 
tell me -- I''m new to Ruby and that''s a serious possibility.
If you can
run the code on Windows and it *doesn''t* fail, let me know that --
maybe
it is some other problem on this machine I''ll have to track down 
(display driver?).

Thanks for your help.

David Peoples

-------------------------------------------------------------------------

require "fox12"
include Fox

class TestWindow < FXMainWindow

   TABLE_SIZE = 10_000

   def initialize(app)
     super(app, "MyTest", nil, nil, DECOR_ALL, 0, 0, 600, 400, 0, 0)
     mainFrame = FXVerticalFrame.new(self, LAYOUT_FILL_X|LAYOUT_FILL_Y)
     @table = FXTable.new(mainFrame, nil, 0, LAYOUT_FILL_X|LAYOUT_FILL_Y)
     goButton = FXButton.new(mainFrame, " Go method 1")
     goButton.connect(SEL_COMMAND) { fillTable }
     goButton2 = FXButton.new(mainFrame, " Go method 2")
     goButton2.connect(SEL_COMMAND) { fillTable2 }
   end

   # fails after 2 to 15-20 iterations
   def fillTable
     @table.setTableSize(TABLE_SIZE, 1)
     (0...TABLE_SIZE).each do |r|
       @table.setItemText(r, 0, "#{r}")
     end
     @table.setFocus
   end

   # seems to require more iterations, but still fails
   def fillTable2
     @table.setTableSize(0, 1)
     (0...TABLE_SIZE).each do |r|
       @table.insertRows(r)
       @table.setItemText(r, 0, "#{r}")
     end
     @table.setFocus
   end

   def create
     super
     show(PLACEMENT_SCREEN)
   end

end

def runme
   application = FXApp.new("MyTest", "FoxTest")
   TestWindow.new(application)
   application.create
   application.run
end

runme

-------------------------------------------------------------------------

-- 
David Peoples  davidp@touringcyclist.com
The Touring Cyclist  http://www.touringcyclist.com
11816 St. Charles Rock Road, Bridgeton, MO 63044
tel: 314-739-4648  fax: 314-739-4972
_______________________________________________
fxruby-users mailing list
fxruby-users@rubyforge.org
http://rubyforge.org/mailman/listinfo/fxruby-users

lyle@knology.net

2005-Feb-18 17:01 UTC

head link

[fxruby-users] FXTable segfaults after multiple setTableSize calls

On Fri, 18 Feb 2005 15:38:57 -0600, David Peoples
<davidp@touringcyclist.com> wrote :
> When I empty and refill an FXTable multiple times with a large data set 
> (10,000 rows x 1 column in the example below, around 1000 rows x 6 
> columns in a more complicated app), the application eventually fails 
> with a segmentation fault.
<snip>

This sounds like another manifestation of the bug described here:

http://rubyforge.org/tracker/index.php?func=detail&aid=1445&group_id=300&atid=1223

I will tack your report on to that one as some supporting evidence, if
that''s OK with you. I''ve figured out part of the problem, but
it''s difficult
to debug. I hope to have a solution soon, though. Will try to devote some
more time to it this weekend.

David Peoples

2005-Feb-18 17:06 UTC

head link

[fxruby-users] FXTable segfaults after multiple setTableSize calls

DeZonia, Barry wrote:> The app fails for me too selecting either button (after 8-20 times).
> 
> Windows, Ruby 1.8.2-14 final, fxruby 1.2.2
> 
Thanks. I guess I''m glad to hear one data point suggesting this
isn''t
just a display driver problem on my machine. (I just looked, it''s an 
NVidia Vanta, driver ver. 4.5.2.3 supplied by Microsoft I think. Hope 
your''s isn''t the same! <g>)

David

-- 
David Peoples  davidp@touringcyclist.com
The Touring Cyclist  http://www.touringcyclist.com
11816 St. Charles Rock Road, Bridgeton, MO 63044
tel: 314-739-4648  fax: 314-739-4972

Jeroen van der Zijp

2005-Feb-18 17:11 UTC

head link

[fxruby-users] FXTable segfaults after multiple setTableSize calls

On Friday 18 February 2005 03:54 pm, DeZonia, Barry
wrote:> 
> The app fails for me too selecting either button (after 8-20 times).
> 
> Windows, Ruby 1.8.2-14 final, fxruby 1.2.2
> 
> -----Original Message-----
> From: fxruby-users-bounces@rubyforge.org
> [mailto:fxruby-users-bounces@rubyforge.org] On Behalf Of David Peoples
> Sent: Friday, February 18, 2005 3:39 PM
> To: fxruby-users
> Subject: [fxruby-users] FXTable segfaults after multiple setTableSize calls
> 
> When I empty and refill an FXTable multiple times with a large data set 
> (10,000 rows x 1 column in the example below, around 1000 rows x 6 
> columns in a more complicated app), the application eventually fails 
> with a segmentation fault. The number of repetitions required to produce 
> the segfault is rather random, ranging from just a couple reps to 15 or 
> 20 in some trials. The program disappears (window goes away) apparently 
> during or just after the table is filled, leaving the following message 
> at the command prompt:
> 
> C:/Data/Ruby/pos/stockviewertest/mainv5c.rb:21: [BUG] Segmentation fault
> ruby 1.8.2 (2004-12-25) [i386-mswin32]
> 
> The platform is Windows XP Home with service pack 2. The base Ruby 
> installation is the "One Click Ruby Installer" version 1.8.2-14
final
> (ruby182-14.exe). I''ve installed FXRuby version 1.2.3 on top of
the
> version included with the one click installer 
> (FXRuby-1.2.3-ruby182.exe). fxversion() reports "1.2.13" from the
irb
> command prompt. The machine has a Pentium 4 and 256mb ram.
> 
> If someone can run the example code below and it fails like I''m
seeing,
> let me know. If you see an obvious programming error on my part, please 
> tell me -- I''m new to Ruby and that''s a serious
possibility. If you can
> run the code on Windows and it *doesn''t* fail, let me know that --
maybe
> it is some other problem on this machine I''ll have to track down 
> (display driver?).
> 
> Thanks for your help.
> 
> David Peoples
> 
> -------------------------------------------------------------------------
> 
> require "fox12"
> include Fox
> 
> class TestWindow < FXMainWindow
> 
>    TABLE_SIZE = 10_000
> 
>    def initialize(app)
>      super(app, "MyTest", nil, nil, DECOR_ALL, 0, 0, 600, 400, 0,
0)
>      mainFrame = FXVerticalFrame.new(self, LAYOUT_FILL_X|LAYOUT_FILL_Y)
>      @table = FXTable.new(mainFrame, nil, 0, LAYOUT_FILL_X|LAYOUT_FILL_Y)
>      goButton = FXButton.new(mainFrame, " Go method 1")
>      goButton.connect(SEL_COMMAND) { fillTable }
>      goButton2 = FXButton.new(mainFrame, " Go method 2")
>      goButton2.connect(SEL_COMMAND) { fillTable2 }
>    end
> 
>    # fails after 2 to 15-20 iterations
>    def fillTable
>      @table.setTableSize(TABLE_SIZE, 1)
>      (0...TABLE_SIZE).each do |r|
>        @table.setItemText(r, 0, "#{r}")
>      end
>      @table.setFocus
>    end
> 
>    # seems to require more iterations, but still fails
>    def fillTable2
>      @table.setTableSize(0, 1)
>      (0...TABLE_SIZE).each do |r|
>        @table.insertRows(r)
>        @table.setItemText(r, 0, "#{r}")
>      end
>      @table.setFocus
>    end
> 
>    def create
>      super
>      show(PLACEMENT_SCREEN)
>    end
> 
> end
> 
> def runme
>    application = FXApp.new("MyTest", "FoxTest")
>    TestWindow.new(application)
>    application.create
>    application.run
> end
> 
> runme
I looked through FXTable code and nothing I see looks like an
obvious error.  It may be specific to the ruby binding.  


	- Jeroen

David Peoples

2005-Feb-18 17:18 UTC

head link

[fxruby-users] FXTable segfaults after multiple setTableSize calls

lyle@knology.net wrote:> On Fri, 18 Feb 2005 15:38:57 -0600, David Peoples
> <davidp@touringcyclist.com> wrote :
> 
> 
>>When I empty and refill an FXTable multiple times with a large data set 
>>(10,000 rows x 1 column in the example below, around 1000 rows x 6 
>>columns in a more complicated app), the application eventually fails 
>>with a segmentation fault.
> 
> 
> <snip>
> 
> This sounds like another manifestation of the bug described here:
> 
>
http://rubyforge.org/tracker/index.php?func=detail&aid=1445&group_id=300&atid=1223
> 
> I will tack your report on to that one as some supporting evidence, if
> that''s OK with you. I''ve figured out part of the problem,
but it''s difficult
> to debug. I hope to have a solution soon, though. Will try to devote some
> more time to it this weekend.
That''s fine. I actually had seen that bug report, but didn''t
make the
connection to my example somehow. I think I was distracted by some red 
herrings in the original code where this problem first showed up, and 
didn''t remember it by the time I distilled the problem down to the
FXTable.

I''m not equipped or knowledgeable enough to debug this at a lower level
myself, so I''m afraid I can''t be any help there. But
I''ll be happy to
try out potential fixes for you if that does you any good.

David

-- 
David Peoples  davidp@touringcyclist.com
The Touring Cyclist  http://www.touringcyclist.com
11816 St. Charles Rock Road, Bridgeton, MO 63044
tel: 314-739-4648  fax: 314-739-4972

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