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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What qualifies as a bad handle?&nbsp; Is a
closed ACE_SOCK_Stream a bad handle?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jules.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

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face="Times New Roman"><span style='font-size:12.0pt'>

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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Steve Huston
[mailto:shuston@riverace.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, June 29, 2007 11:57
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Jules d'Entremont;
ace-users@cse.wustl.edu<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [ace-users]
Segmentation fault inACE_Select_Reactor_T::handle_error (with ACE 5.5.9)</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Hi Jules,</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Thanks for the PROBLEM-REPORT-FORM.</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>From the looks of the args in the stack
trace, your reactor is (at least partly) smashed. And, it's trying to recover
from a bad handle in the registered handle set. If that doesn't shed any light
on things, try running this under valgrind to see if it can focus you on the
problem area.</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>&nbsp;<o:p></o:p></span></font></p>

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<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>-Steve</span></font><o:p></o:p></p>

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<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'><!-- Converted from text/plain format -->--<br>
Steve Huston, Riverace Corporation<br>
Would you like ACE to run great on your platform?<br>
See <a href="http://www.riverace.com/sponsor.htm">http://www.riverace.com/sponsor.htm</a></span></font><o:p></o:p></p>

<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>

<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
ace-users-bounces@cse.wustl.edu [mailto:ace-users-bounces@cse.wustl.edu] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Jules d'Entremont<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, June 29, 2007 11:38
AM<br>
<b><span style='font-weight:bold'>To:</span></b> ace-users@cse.wustl.edu<br>
<b><span style='font-weight:bold'>Subject:</span></b> [ace-users] Segmentation
fault inACE_Select_Reactor_T::handle_error (with ACE 5.5.9)</span></font><o:p></o:p></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; ACE VERSION: 5.5.9<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; HOST MACHINE and OPERATING SYSTEM:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Linux dev228
2.6.11.11sol-pe #1 SMP Thu Aug 25 13:56:24 EDT 2005 i686 i686 i386 GNU/Linux<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; TARGET MACHINE and OPERATING SYSTEM, if
different from HOST:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; COMPILER NAME AND VERSION (AND
PATCHLEVEL):&nbsp; <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; g++ (GCC) 3.3.2<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; THE $ACE_ROOT/ace/config.h FILE [if you
use a link to a platform-specific file, simply state which one]:&nbsp; <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; #include
&quot;config-linux.h&quot;<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; THE
$ACE_ROOT/include/makeinclude/platform_macros.GNU FILE [if you<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; use a link to a platform-specific file,
simply state which one<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; (unless this isn't used in this case,
e.g., with Microsoft Visual<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; C++)]: &nbsp;&nbsp;platform_linux.GNU<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; CONTENTS OF
$ACE_ROOT/bin/MakeProjectCreator/config/default.features<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; (used by MPC when you generate your own
makefiles):<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; AREA/CLASS/EXAMPLE AFFECTED:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; DOES THE PROBLEM AFFECT:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMPILATION?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LINKING?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
On Unix systems, did you run make realclean first?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EXECUTION?&nbsp;
yes<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; OTHER (please
specify)?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; SYNOPSIS:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; DESCRIPTION:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I&#8217;ve recently been getting segmentation faults in my
ACE application, which I&#8217;m at a loss to explain.&nbsp; Here&#8217;s the
stack trace:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(gdb) where<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#0&nbsp; 0xb7f9a767 in
ACE_Select_Reactor_Handler_Repository::unbind (this=0x8108074,
handle=135368392, pos=0x8118ec8, mask=511) at Select_Reactor_Base.cpp:397<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#1&nbsp; 0xb7f3e21a in ACE_Select_Reactor_T&lt;ACE_Reactor_Token_T&lt;ACE_Token&gt;
&gt;::remove_handler_i (this=0x8108070, handle=5, mask=135368408)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; at
/home/jdentremont/src/ACE-5.5.9/ACE_wrappers/ace/Select_Reactor_T.cpp:1012<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#2&nbsp; 0xb7f3edaa in
ACE_Select_Reactor_T&lt;ACE_Reactor_Token_T&lt;ACE_Token&gt;
&gt;::check_handles (this=0x8108070) at
/home/jdentremont/src/ACE-5.5.9/ACE_wrappers/ace/Select_Reactor_T.cpp:1526<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#3&nbsp; 0xb7f3ee1b in
ACE_Select_Reactor_T&lt;ACE_Reactor_Token_T&lt;ACE_Token&gt; &gt;::handle_error
(this=0x8108070) at /home/jdentremont/src/ACE-5.5.9/ACE_wrappers/ace/Select_Reactor_T.cpp:788<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#4&nbsp; 0xb7f3bfde in
ACE_Select_Reactor_T&lt;ACE_Reactor_Token_T&lt;ACE_Token&gt;
&gt;::wait_for_multiple_events (this=0x8108070, dispatch_set=@0x810808c,
max_wait_time=0x0)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; at /home/jdentremont/src/ACE-5.5.9/ACE_wrappers/ace/Select_Reactor_T.cpp:1104<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#5&nbsp; 0xb7f40250 in
ACE_Select_Reactor_T&lt;ACE_Reactor_Token_T&lt;ACE_Token&gt;
&gt;::handle_events_i (this=0x8108070, max_wait_time=0x1ff)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; at
/home/jdentremont/src/ACE-5.5.9/ACE_wrappers/ace/Select_Reactor_T.cpp:1443<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#6&nbsp; 0xb7f3c227 in
ACE_Select_Reactor_T&lt;ACE_Reactor_Token_T&lt;ACE_Token&gt;
&gt;::handle_events (this=0x8108070, max_wait_time=0x0)<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp; at
/home/jdentremont/src/ACE-5.5.9/ACE_wrappers/ace/Select_Reactor_T.cpp:1424<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#7&nbsp; 0xb7f97a06 in ACE_Reactor::run_reactor_event_loop
(this=0x8107180, eh=0) at Reactor.cpp:233<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#8&nbsp; 0x08079d69 in (anonymous
namespace)::ReactorThread::svc (this=0x8110d00) at
/home/jdentremont/svn/branches/d14_branch/cppcsmp/CSMPFactory.cpp:131<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#9&nbsp; 0xb7face24 in ACE_Task_Base::svc_run (args=0x8110d00)
at Task.cpp:271<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#10 0xb7fad29c in ACE_Thread_Adapter::invoke_i
(this=0x8118ed8) at Thread_Adapter.cpp:146<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#11 0xb7fad1f6 in ACE_Thread_Adapter::invoke
(this=0x810fab0) at Thread_Adapter.cpp:95<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#12 0xb7f42651 in ace_thread_adapter (args=0x1ff) at Base_Thread_Adapter.cpp:116<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#13 0x006c1b80 in start_thread () from /lib/libpthread.so.0<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>#14 0x00619dee in clone () from /lib/libc.so.6<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I don&#8217;t know where to start to try to debug
this.&nbsp; Any insight that anyone could offer would be greatly
appreciated.&nbsp; I was hoping that this was caused by bug 2653, but I&#8217;m
still seeing it with ACE 5.5.9.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jules d&#8217;Entremont<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

</blockquote>

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