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Posted to c-dev@xerces.apache.org by Paul Duffy <pa...@cisco.com> on 2000/09/20 21:40:37 UTC
Solaris 2.6 and multiple threads...still SEQVs on throw().
Hello All...I really need some advice on this one...
As described below, I have a small app that starts up N threads. Each
thread executes a infinite loop that creates a SAXParser, performs a
simple SAXParse on a small piece of XML, then destroys the parser. This
app runs fine on Linux with as many as 20 threads running.
On Solaris 2.6, with a single parse thread started, the app will run fine
indefinitely.
When 2 or more threads are started, the app runs for a bit then SEGVs
within __throw.
I have read the FAQ. The Solaris 105591 patch was installed on my machine
by IT last week. The machine has been rebooted. The /var/sadm/patch
directory contains two folders 105591-08 and 105591-09.
I have built the xerces lib (and app) here locally with the Aug 18 snapshot
using gcc 2.8.1
I've run out of ideas....
Cheers,
At 10:48 AM 9/11/00 -0700, Andy Heninger wrote:
>(Sorry for the belated response)
>
>The older Solaris runtime library had a bug in its exception
>throwing code. It relied on a global variable, and two threads
>throwing at the same time makes for big trouble.
>
>The parsers do throw some exceptions as part of their normal
>operation.
>
>Andy Heninger
>IBM XML Technology Group, Cupertino, CA
>heninger@us.ibm.com
>
>
>----- Original Message -----
>From: "Paul Duffy" <pa...@cisco.com>
>To: <xe...@xml.apache.org>
>Sent: Thursday, August 31, 2000 4:40 PM
>Subject: Regarding the Solaris 2.6 patch required for multi threaded
>apps....
>
>
> > ...I've read the FAQ and my U5 will be patched in a day or so.
> >
> > For now I'm running my app with 10 threads, each with its own SAXParser
> > doing its thing. This all runs for a few hundred passes within GDB,
>then I
> > get a SEGV and land within _throw(). WHERE reveals nothing more. I
> > assume these are the symptoms requiring the patch (this identical app
>runs
> > on Linux for millions of passes).
> >
> > Is the throw the result of some normal SAXParser activity, or is the app
>in
> > the midst of trying to tell me something is wrong (via an exception) and
> > dying ?
> >
> > Thanks,
> >
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
>For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
*********************************************************
Paul B Duffy 978-244-4754 Fax 978-244-8917
Cisco Systems, Inc. paduffy@cisco.com
300 Apollo Drive
Chelmsford, MA 01824
*********************************************************
Re: Solaris 2.6 and multiple threads...still SEQVs on throw().
Posted by Arundhati Bhowmick <ar...@hyperreal.org>.
The patch was for CC compiler. So, you need to install the patches necessary for
your solaris system and the compiler.
The gcc needs to be updated with the latest one for various compatibility reasons.
The configure scripts are generated from the autoconf. So, before running the
runConfigure script it'd be good to run autoconf. This will ensure your systems
configuration setup in the script.
You may also need to check if the gmake is of 3.78.1 version.
Arundhati
Paul Duffy wrote:
> Thank you Arundhati...
>
> At 03:14 PM 9/20/00 -0700, Arundhati Bhowmick wrote:
> >It'd be a good idea to install all the latest compiler related patches on the
> >system.
> >The problem that you're facing is a multi-threading issue. The patch number
> >mentioned in the documentation is for CC compiler on solaris.
>
> Solaris 2.6 patch 105591 fixed a problem with the CC compiler ? or the
> runtime libraries ? I assume that the patch repaired a runtime library,
> thus repaired my problem (obviously not). Do CC and GCC share the same
> libraries at runtime ?
>
> >Since you're using
> >gcc I hope that you're recompiling the source on your compiler.
>
> I am compiling from source, but with gcc 2.8.1
>
> >The gcc version that's used on solaris is 2.95.2. This could also be the cause
> >probably.
> >Also check if you have the autoconf facility installed.
>
> Forgive the silly question, but what will autoconf do for me ?
>
> >Arundhati
> >
> >Paul Duffy wrote:
> >
> > > Hello All...I really need some advice on this one...
> > >
> > > As described below, I have a small app that starts up N threads. Each
> > > thread executes a infinite loop that creates a SAXParser, performs a
> > > simple SAXParse on a small piece of XML, then destroys the parser. This
> > > app runs fine on Linux with as many as 20 threads running.
> > >
> > > On Solaris 2.6, with a single parse thread started, the app will run fine
> > > indefinitely.
> > >
> > > When 2 or more threads are started, the app runs for a bit then SEGVs
> > > within __throw.
> > >
> > > I have read the FAQ. The Solaris 105591 patch was installed on my machine
> > > by IT last week. The machine has been rebooted. The /var/sadm/patch
> > > directory contains two folders 105591-08 and 105591-09.
> > >
> > > I have built the xerces lib (and app) here locally with the Aug 18 snapshot
> > > using gcc 2.8.1
> > >
> > > I've run out of ideas....
> > >
> > > Cheers,
> > >
> > > At 10:48 AM 9/11/00 -0700, Andy Heninger wrote:
> > > >(Sorry for the belated response)
> > > >
> > > >The older Solaris runtime library had a bug in its exception
> > > >throwing code. It relied on a global variable, and two threads
> > > >throwing at the same time makes for big trouble.
> > > >
> > > >The parsers do throw some exceptions as part of their normal
> > > >operation.
> > > >
> > > >Andy Heninger
> > > >IBM XML Technology Group, Cupertino, CA
> > > >heninger@us.ibm.com
> > > >
> > > >
> > > >----- Original Message -----
> > > >From: "Paul Duffy" <pa...@cisco.com>
> > > >To: <xe...@xml.apache.org>
> > > >Sent: Thursday, August 31, 2000 4:40 PM
> > > >Subject: Regarding the Solaris 2.6 patch required for multi threaded
> > > >apps....
> > > >
> > > >
> > > > > ...I've read the FAQ and my U5 will be patched in a day or so.
> > > > >
> > > > > For now I'm running my app with 10 threads, each with its own SAXParser
> > > > > doing its thing. This all runs for a few hundred passes within GDB,
> > > >then I
> > > > > get a SEGV and land within _throw(). WHERE reveals nothing more. I
> > > > > assume these are the symptoms requiring the patch (this identical app
> > > >runs
> > > > > on Linux for millions of passes).
> > > > >
> > > > > Is the throw the result of some normal SAXParser activity, or is
> > the app
> > > >in
> > > > > the midst of trying to tell me something is wrong (via an
> > exception) and
> > > > > dying ?
> > > > >
> > > > > Thanks,
> > > > >
> > > >
> > > >
> > > >
> > > >---------------------------------------------------------------------
> > > >To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > > >For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
> > >
> > > *********************************************************
> > > Paul B Duffy 978-244-4754 Fax 978-244-8917
> > > Cisco Systems, Inc. paduffy@cisco.com
> > > 300 Apollo Drive
> > > Chelmsford, MA 01824
> > > *********************************************************
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > > For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
> >
> >--
> >
> >
> >Arundhati Bhowmick
> >IBM -- XML Technology Group (Silicon Valley)
> >
> >
> >
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> >For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
> *********************************************************
> Paul B Duffy 978-244-4754 Fax 978-244-8917
> Cisco Systems, Inc. paduffy@cisco.com
> 300 Apollo Drive
> Chelmsford, MA 01824
> *********************************************************
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
--
Arundhati Bhowmick
IBM -- XML Technology Group (Silicon Valley)
Re: Solaris 2.6 and multiple threads...still SEQVs on throw().
Posted by Paul Duffy <pa...@cisco.com>.
Thank you Arundhati...
At 03:14 PM 9/20/00 -0700, Arundhati Bhowmick wrote:
>It'd be a good idea to install all the latest compiler related patches on the
>system.
>The problem that you're facing is a multi-threading issue. The patch number
>mentioned in the documentation is for CC compiler on solaris.
Solaris 2.6 patch 105591 fixed a problem with the CC compiler ? or the
runtime libraries ? I assume that the patch repaired a runtime library,
thus repaired my problem (obviously not). Do CC and GCC share the same
libraries at runtime ?
>Since you're using
>gcc I hope that you're recompiling the source on your compiler.
I am compiling from source, but with gcc 2.8.1
>The gcc version that's used on solaris is 2.95.2. This could also be the cause
>probably.
>Also check if you have the autoconf facility installed.
Forgive the silly question, but what will autoconf do for me ?
>Arundhati
>
>Paul Duffy wrote:
>
> > Hello All...I really need some advice on this one...
> >
> > As described below, I have a small app that starts up N threads. Each
> > thread executes a infinite loop that creates a SAXParser, performs a
> > simple SAXParse on a small piece of XML, then destroys the parser. This
> > app runs fine on Linux with as many as 20 threads running.
> >
> > On Solaris 2.6, with a single parse thread started, the app will run fine
> > indefinitely.
> >
> > When 2 or more threads are started, the app runs for a bit then SEGVs
> > within __throw.
> >
> > I have read the FAQ. The Solaris 105591 patch was installed on my machine
> > by IT last week. The machine has been rebooted. The /var/sadm/patch
> > directory contains two folders 105591-08 and 105591-09.
> >
> > I have built the xerces lib (and app) here locally with the Aug 18 snapshot
> > using gcc 2.8.1
> >
> > I've run out of ideas....
> >
> > Cheers,
> >
> > At 10:48 AM 9/11/00 -0700, Andy Heninger wrote:
> > >(Sorry for the belated response)
> > >
> > >The older Solaris runtime library had a bug in its exception
> > >throwing code. It relied on a global variable, and two threads
> > >throwing at the same time makes for big trouble.
> > >
> > >The parsers do throw some exceptions as part of their normal
> > >operation.
> > >
> > >Andy Heninger
> > >IBM XML Technology Group, Cupertino, CA
> > >heninger@us.ibm.com
> > >
> > >
> > >----- Original Message -----
> > >From: "Paul Duffy" <pa...@cisco.com>
> > >To: <xe...@xml.apache.org>
> > >Sent: Thursday, August 31, 2000 4:40 PM
> > >Subject: Regarding the Solaris 2.6 patch required for multi threaded
> > >apps....
> > >
> > >
> > > > ...I've read the FAQ and my U5 will be patched in a day or so.
> > > >
> > > > For now I'm running my app with 10 threads, each with its own SAXParser
> > > > doing its thing. This all runs for a few hundred passes within GDB,
> > >then I
> > > > get a SEGV and land within _throw(). WHERE reveals nothing more. I
> > > > assume these are the symptoms requiring the patch (this identical app
> > >runs
> > > > on Linux for millions of passes).
> > > >
> > > > Is the throw the result of some normal SAXParser activity, or is
> the app
> > >in
> > > > the midst of trying to tell me something is wrong (via an
> exception) and
> > > > dying ?
> > > >
> > > > Thanks,
> > > >
> > >
> > >
> > >
> > >---------------------------------------------------------------------
> > >To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > >For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
> >
> > *********************************************************
> > Paul B Duffy 978-244-4754 Fax 978-244-8917
> > Cisco Systems, Inc. paduffy@cisco.com
> > 300 Apollo Drive
> > Chelmsford, MA 01824
> > *********************************************************
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> > For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
>--
>
>
>Arundhati Bhowmick
>IBM -- XML Technology Group (Silicon Valley)
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
>For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
*********************************************************
Paul B Duffy 978-244-4754 Fax 978-244-8917
Cisco Systems, Inc. paduffy@cisco.com
300 Apollo Drive
Chelmsford, MA 01824
*********************************************************
Re: Solaris 2.6 and multiple threads...still SEQVs on throw().
Posted by Arundhati Bhowmick <ar...@hyperreal.org>.
It'd be a good idea to install all the latest compiler related patches on the
system.
The problem that you're facing is a multi-threading issue. The patch number
mentioned in the documentation is for CC compiler on solaris. Since you're using
gcc I hope that you're recompiling the source on your compiler.
The gcc version that's used on solaris is 2.95.2. This could also be the cause
probably. Also check if you have the autoconf facility installed.
Arundhati
Paul Duffy wrote:
> Hello All...I really need some advice on this one...
>
> As described below, I have a small app that starts up N threads. Each
> thread executes a infinite loop that creates a SAXParser, performs a
> simple SAXParse on a small piece of XML, then destroys the parser. This
> app runs fine on Linux with as many as 20 threads running.
>
> On Solaris 2.6, with a single parse thread started, the app will run fine
> indefinitely.
>
> When 2 or more threads are started, the app runs for a bit then SEGVs
> within __throw.
>
> I have read the FAQ. The Solaris 105591 patch was installed on my machine
> by IT last week. The machine has been rebooted. The /var/sadm/patch
> directory contains two folders 105591-08 and 105591-09.
>
> I have built the xerces lib (and app) here locally with the Aug 18 snapshot
> using gcc 2.8.1
>
> I've run out of ideas....
>
> Cheers,
>
> At 10:48 AM 9/11/00 -0700, Andy Heninger wrote:
> >(Sorry for the belated response)
> >
> >The older Solaris runtime library had a bug in its exception
> >throwing code. It relied on a global variable, and two threads
> >throwing at the same time makes for big trouble.
> >
> >The parsers do throw some exceptions as part of their normal
> >operation.
> >
> >Andy Heninger
> >IBM XML Technology Group, Cupertino, CA
> >heninger@us.ibm.com
> >
> >
> >----- Original Message -----
> >From: "Paul Duffy" <pa...@cisco.com>
> >To: <xe...@xml.apache.org>
> >Sent: Thursday, August 31, 2000 4:40 PM
> >Subject: Regarding the Solaris 2.6 patch required for multi threaded
> >apps....
> >
> >
> > > ...I've read the FAQ and my U5 will be patched in a day or so.
> > >
> > > For now I'm running my app with 10 threads, each with its own SAXParser
> > > doing its thing. This all runs for a few hundred passes within GDB,
> >then I
> > > get a SEGV and land within _throw(). WHERE reveals nothing more. I
> > > assume these are the symptoms requiring the patch (this identical app
> >runs
> > > on Linux for millions of passes).
> > >
> > > Is the throw the result of some normal SAXParser activity, or is the app
> >in
> > > the midst of trying to tell me something is wrong (via an exception) and
> > > dying ?
> > >
> > > Thanks,
> > >
> >
> >
> >
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> >For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
> *********************************************************
> Paul B Duffy 978-244-4754 Fax 978-244-8917
> Cisco Systems, Inc. paduffy@cisco.com
> 300 Apollo Drive
> Chelmsford, MA 01824
> *********************************************************
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
--
Arundhati Bhowmick
IBM -- XML Technology Group (Silicon Valley)