RE: RedHat 7.3 hung process during compile

RE: RedHat 7.3 hung process during compile

[lrtaylor]

David,

Are you compiling on NFS mounted shares?  We've seen problems like this
that, I believe, were due to NFS issues related to the automounter.  To
be honest, I don't know if we really tracked down and solved the
problem, but if this is along your alley, I can ask around and see...

Cheers,
Lyle

-----Original Message-----
From: gcc-help-owner@gcc.gnu.org [mailto:gcc-help-owner@gcc.gnu.org] On
Behalf Of David Highley
Sent: Saturday, February 21, 2004 11:40 AM
To: gcc-help@gcc.gnu.org
Subject: RedHat 7.3 hung process during compile

We have a customer site, Boeing, that is experiencing an intermittent
hung
process problem doing compiles. We know that this is not the fault of
the compiler but hope that someone in the community may have also
experienced this situation and found a fix for it. We have searched the
RedHat and www.kernel.org sites but found nothing that points to the
situation we are experiencing.

We have an 8 processor Dell server running RedHat 7.3 and are using g++
3.2.2. What we see is g++ forks an as process which hangs in a non
interruptible dormant state. The as process never seems to wake up and
remains until the system is rebooted. Just yesterday we also experienced
a hang with Ant/Java build where 7 Java sub processes were spawned and
all appeared to be doing nothing. The parent Java process would
occasionally wake up for a brief moment and then return to a sleep
state. We believe this to be a kernel issue, but have not been able to
find any references to an issue like this. There is also a twin system
that seems to experience the issue less frequently, but that may just be
to a variance in the system loading.

Any pointers would be greatly appreciated. Thank you.

-- 


Regards,

David Highley		      Phone: (206) 669-0081
Highley Recommended, Inc.	FAX: (253) 838-8509
2927 SW 339th Street	      Email: dhighley@highley-recommended.com
Federal Way, WA 98023-7732	WEB: http://www.highley-recommended.com

Re: RedHat 7.3 hung process during compile

[David.Carter-Hitchin]

Hi,

Sorry I can really add anything specific, but I would try to halve the
problem by running a series of tests - does it happen on a different O/S
compiling the same code (or vice-versa)?  Or with a different gcc? If it is
intermittent then it could well be hardware as pointed out below, but it
could conceivably be due to other factors on that machine - I'd therefore
want to test with the same code and compiler on another machine.  Boeing
surely must have an alternative host to run this on - they're big enough ;-)
Doing such tests should reveal where the problem lies.

Sorry, you've probably thought of all that already..

Cheers,

David Carter-Hitchin,
GSD-Risk-IT, UBS Investment Bank

On Sun, 22 Feb 2004, Ken Foskey wrote:

> On Sun, 2004-02-22 at 05:40, David Highley wrote:
> > We have a customer site, Boeing, that is experiencing an intermittent hung
> > process problem doing compiles. We know that this is not the fault of
> > the compiler but hope that someone in the community may have also
> > experienced this situation and found a fix for it. We have searched the
> > RedHat and www.kernel.org sites but found nothing that points to the
> > situation we are experiencing.
>
> Just some ideas, hope they help...
>
> Have you run a memory tester on it?  A lot of these sort of problems
> come back to hardware.  If you download the mepis CD there is a memory
> test on the boot menu.
>
> I am assuming that you have checked the logs,  the situation I had was a
> hard disk failure that was issue messages.  Mine was a lot more terminal
> though, crashed the machine.
>
> Finally you might want to bounce this to the fedora list for some help.
> --
> Thanks
> KenF
> OpenOffice.org developer
>

Re: RedHat 7.3 hung process during compile

[Ken Foskey]

On Sun, 2004-02-22 at 05:40, David Highley wrote:
> We have a customer site, Boeing, that is experiencing an intermittent hung
> process problem doing compiles. We know that this is not the fault of
> the compiler but hope that someone in the community may have also
> experienced this situation and found a fix for it. We have searched the
> RedHat and www.kernel.org sites but found nothing that points to the
> situation we are experiencing.

Just some ideas, hope they help...

Have you run a memory tester on it?  A lot of these sort of problems
come back to hardware.  If you download the mepis CD there is a memory
test on the boot menu.

I am assuming that you have checked the logs,  the situation I had was a
hard disk failure that was issue messages.  Mine was a lot more terminal
though, crashed the machine.

Finally you might want to bounce this to the fedora list for some help.
-- 
Thanks
KenF
OpenOffice.org developer

RedHat 7.3 hung process during compile

[David Highley]

We have a customer site, Boeing, that is experiencing an intermittent hung
process problem doing compiles. We know that this is not the fault of
the compiler but hope that someone in the community may have also
experienced this situation and found a fix for it. We have searched the
RedHat and www.kernel.org sites but found nothing that points to the
situation we are experiencing.

We have an 8 processor Dell server running RedHat 7.3 and are using g++
3.2.2. What we see is g++ forks an as process which hangs in a non
interruptible dormant state. The as process never seems to wake up and
remains until the system is rebooted. Just yesterday we also experienced
a hang with Ant/Java build where 7 Java sub processes were spawned and
all appeared to be doing nothing. The parent Java process would
occasionally wake up for a brief moment and then return to a sleep
state. We believe this to be a kernel issue, but have not been able to
find any references to an issue like this. There is also a twin system
that seems to experience the issue less frequently, but that may just be
to a variance in the system loading.

Any pointers would be greatly appreciated. Thank you.

-- 


Regards,

David Highley		      Phone: (206) 669-0081
Highley Recommended, Inc.	FAX: (253) 838-8509
2927 SW 339th Street	      Email: dhighley@highley-recommended.com
Federal Way, WA 98023-7732	WEB: http://www.highley-recommended.com