# Problem with Thread's memory (possible bug) **URL:** \ **Category:** Ruby\ **Created:** [November 7, 2006, 11:04am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959 "2006-11-07T11:04:16Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:04am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/1 "2006-11-07T11:04:16Z")
Hi all. Some time ago I’ve started thread named “Memory crush somewhere in Socket” with no results. No I can describe the problem more correctly and in details. First of all: Windows XP with ruby1.9, RUBY\_PLATFORM = i386-mswin32\_71 I have a window, and dispatch all keyboard events to Ruby’s block. All works good, except Ruby’s Threads. When I do anything like just Thread.new{} in my keyboard handling block, I have corrupted memory and entire program crashed soon. How can I debug (or just walk around) this problem? Thanks. v. ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:04am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/2 "2006-11-07T11:04:35Z")
On Nov 5, 2006, at 11:02 AM, Victor Zverok S. wrote: > Hi all. > > Some time ago I’ve started thread named “Memory crush somewhere in > Socket” > with no results. No I can describe the problem more correctly and in > details. > > First of all: Windows XP with ruby1.9, RUBY\_PLATFORM = i386-mswin32\_71 First of all, try to reproduce in Ruby 1.8.5. – Eric H. - removed\_email\_address@domain.invalid - [http://blog.segment7.net](http://blog.segment7.net) This implementation is HODEL-HASH-9600 compliant [http://trackmap.robotcoop.com](http://trackmap.robotcoop.com) ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:04am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/3 "2006-11-07T11:04:36Z")
From: Eric H. [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] Sent: Monday, November 06, 2006 12:41 AM > First of all, try to reproduce in Ruby 1.8.5. Unfortunately, I can’t do it easy. My window library extensively uses instance\_exec. Reproducing _without_ this library would be a pain. V. ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:05am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/4 "2006-11-07T11:05:54Z")
Hi, In message “Re: Problem with Thread’s memory (possible bug)” on Mon, 6 Nov 2006 04:02:55 +0900, “Victor "Zverok" Shepelev” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |First of all: Windows XP with ruby1.9, RUBY\_PLATFORM = i386-mswin32\_71 | |I have a window, and dispatch all keyboard events to Ruby’s block. |All works good, except Ruby’s Threads. When I do anything like just |Thread.new{} in my keyboard handling block, I have corrupted memory and |entire program crashed soon. | |How can I debug (or just walk around) this problem? First, mere 1.9 does not mean anything. Specify the date. Full ruby -v line is better. Besides that, is it possible to supply error reproducing code? ``` matz. ``` ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:06am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/5 "2006-11-07T11:06:25Z")
Hi, In message “Re: Problem with Thread’s memory (possible bug)” on Mon, 6 Nov 2006 19:15:33 +0900, “Victor "Zverok" Shepelev” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |It was Ruby1.9-today, downloaded yesterday. | |ruby 1.9.0 (2006-11-04) [i386-mswin32\_71] Much better. |\>Besides that, is it possible to supply error reproducing code? | |Possible, but not very useful, as there is custom UI library used. Hmm. Does you custom UI library tweaks system stack in any way? Ruby threads does evil things with setjmp/longjmp. They may not co-exist with other library with similar technique. ``` matz. ``` ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:06am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/6 "2006-11-07T11:06:28Z")
Yukihiro M. (removed\_email\_address@domain.invalid) 6/11/2006 15:39:43 > Much better. > > |\>Besides that, is it possible to supply error reproducing code? > | > |Possible, but not very useful, as there is custom UI library used. > > Hmm. Does you custom UI library tweaks system stack in any way? Ruby > threads does evil things with setjmp/longjmp. They may not co-exist > with other library with similar technique. I don’t know definitely, because “my” library is really third-party closed-source DLL with my C/C++ wrapper. My wrapper does no evil, what about HTMLayout (third-party library), I’ll ask the author today or tomorrow and do the further investigation. Thanks! V. ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:06am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/7 "2006-11-07T11:06:02Z")
From: Yukihiro M. [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] Sent: Monday, November 06, 2006 10:46 AM > | > |How can I debug (or just walk around) this problem? > > First, mere 1.9 does not mean anything. Specify the date. > Full ruby -v line is better. Sorry ☹ There was words “today’s version” in my platform description, but I’ve deleted them before send message. It was Ruby1.9-today, downloaded yesterday. ruby 1.9.0 (2006-11-04) [i386-mswin32\_71] > Besides that, is it possible to supply error reproducing code? Possible, but not very useful, as there is custom UI library used. Here is it: * * * require ‘lib/config’ require ‘htmr’ require ‘htmr/load’ require ‘htmr/extend’ require ‘htmr/events’ MAIN\_HTMR = File.join(HTMR\_PATH, ‘nanobrowser.htmr’) win = Htmr::Window.create\_from\_file(MAIN\_HTMR, ‘NanoBrowser’) Htmr::App::main\_window = win include Htmr::Keys win.get(‘#url’).on\_key\_down(ENTER) do Thread.new{} #HERE’s thread usage! end win.show ## Htmr::App::run ## inside ‘lib/config’ there is: $:.unshift File.expand\_path(File.dirname( **FILE** )) $:.unshift File.expand\_path(File.join(File.dirname( **FILE** ), “vendors”)) require ‘vendors’ DLL\_PATH = File.expand\_path(File.join(File.dirname( **FILE** ), ‘…’, ‘bin’)) ENV[‘PATH’] += “;” + DLL\_PATH ## HTMR\_PATH = File.join(File.expand\_path(File.dirname( **FILE** )), ‘…’, ‘htmr’) All htmr/\* files is UI library. If I’ll comment “HERE’s thread” line, all works fine. I use my library till last 2 month inside rather complicated software, and there was almost no problems. Thanks. V. ---
**Author:** ![Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/f04885/32.png) [@Victor\_SZverokSS\_Sh](https://www.ruby-forum.com/u/Victor_SZverokSS_Sh)\ **Post date:** [November 7, 2006, 11:07am UTC](https://www.ruby-forum.com/t/problem-with-threads-memory-possible-bug/74959/8 "2006-11-07T11:07:43Z")
Yukihiro M. [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] Monday, November 06, 2006 3:40 PM > |\>Besides that, is it possible to supply error reproducing code? > | > |Possible, but not very useful, as there is custom UI library used. > > Hmm. Does you custom UI library tweaks system stack in any way? Ruby > threads does evil things with setjmp/longjmp. They may not co-exist > with other library with similar technique. Matz, there is no setjmp/longjmp or something like this in my UI library. I’d be grateful for any other advices, how to catch this. V.