From: Dan Daniels <sdsurfgeek@...>
Date: 2009-06-13T12:55:14+09:00
Subject: Re: win32-service Segmentation fault

Daniel Berger wrote:
>> Platform: Windows Server 2003, Standard Edition Build 3790 Service Pack
>> 
>> Application Layer Gateway Service
>> 
>> ice.rb:1100: [BUG] Segmentation fault
>> ruby 1.8.6 (2007-09-24) [i386-mswin32]
>> 
>> 
>> This application has requested the Runtime to terminate it in an
>> unusual
>> way.
>> Please contact the application's support team for more information.
> 
> That's odd. Line 1100 is actually pure Ruby code:
> 
> binary_path = binary_path.unpack('Z*')[0]
> 
> I wonder if you've found a bug.
> 
> A few questions.
> 
> What version of Ruby are you running?
> One click or hand built?
> What version of win32-service?
> Does it always segfault at the same place?
> 
> If it does segfault at the same place, can you open up your services 
> explorer window and see what the next one on the list is?
> 
> Control Panel -> Administrative Tools -> Services
> 
> Or, if you could step through the debugger, I'd love to see what the 
> 'binary_path' variable is set to when it dies.
> 
> Regards,
> 
> Dan

I inserted "puts binary_path" on line 1101 in services.rb.

W:\>ruby check_services_test.rb
C:\WINDOWS\system32\svchost.exe -k netsvcs
Application Experience Lookup Service
C:\WINDOWS\system32\svchost.exe -k LocalService
Alerter
C:\WINDOWS\System32\alg.exe
Application Layer Gateway Service
C:\WINDOWS\system32\svchost.exe -k netsvcs
Application Management
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_state.exe
ASP.NET State Service
system32\DRIVERS\asyncmac.sys
RAS Asynchronous Media Driver
system32\DRIVERS\audstub.sys
Audio Stub Driver
"C:\Program Files\Research In Motion\BlackBerry Enterprise 
Server\AttachServer\B
BAttachServer.exe" 1900 1999 3 32
BlackBerry Attachment Service
C:\WINDOWS\system32\svchost.exe -k netsvcs
Background Intelligent Transfer Service
"C:\Program Files\Research In Motion\BlackBerry Enterprise 
Server\BlackBerryCont
roller.exe"
BlackBerry Controller
"C:\Program Files\Research In Motion\BlackBerry Enterprise 
Server\MDS\bin\DBCons
istency.exe"
BlackBerry Database Consistency Service
"C:\Program Files\Research In Motion\BlackBerry Enterprise 
Server\BlackBerryDisp
atcher.exe"
BlackBerry Dispatcher
"C:\Program Files\Research In Motion\BlackBerry Enterprise 
Server\MDS\bin\bmds.e
xe" -s jvmpath="C:\Program Files\Java\jre1.6.0_02\bin\client\jvm.dll" 
-XX:+Disab
leExplicitGC -Xss64K -Xmx768M -Xms128M classpathdir="C:\Program 
Files\Research I
n Motion\BlackBerry
c:/ruby/lib/ruby/gems/1.8/gems/win32-service-0.6.1-x86-mswin32-60/lib/win32/serv
ice.rb:1154:in `>': comparison of String with 0 failed (ArgumentError)
        from 
c:/ruby/lib/ruby/gems/1.8/gems/win32-service-0.6.1-x86-mswin32-60/l
ib/win32/service.rb:1154:in `services'
        from 
c:/ruby/lib/ruby/gems/1.8/gems/win32-service-0.6.1-x86-mswin32-60/l
ib/win32/service.rb:1057:in `upto'
        from 
c:/ruby/lib/ruby/gems/1.8/gems/win32-service-0.6.1-x86-mswin32-60/l
ib/win32/service.rb:1057:in `services'
        from check_services_test.rb:12


If I change line 1101 to "puts binary_path.inspect", the script 
completes without error.
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