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.

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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