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[Octave-bug-tracker] [bug #53733] Panic/segfault when calling Java metho


From: Mike Miller
Subject: [Octave-bug-tracker] [bug #53733] Panic/segfault when calling Java method after forge:im[read|write]
Date: Tue, 24 Apr 2018 17:21:31 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0

Follow-up Comment #13, bug #53733 (project octave):

Is it possible that gdb is interacting with the JVM in some way to produce
this segfault that is not a real symptom? On my system, there are gdb plugins
under /usr/share/gdb for each of the versions of libjvm.so that are installed
on my system:


$ find /usr/share/gdb | grep java
/usr/share/gdb/auto-load/usr/lib/jvm/java-11-openjdk-amd64
/usr/share/gdb/auto-load/usr/lib/jvm/java-11-openjdk-amd64/jre
/usr/share/gdb/auto-load/usr/lib/jvm/java-11-openjdk-amd64/jre/lib
/usr/share/gdb/auto-load/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/server
/usr/share/gdb/auto-load/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/server/libjvm.so-gdb.py
/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64
/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/jre
/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/jre/lib
/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64
/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server
/usr/share/gdb/auto-load/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server/libjvm.so-gdb.py
/usr/share/gdb/auto-load/usr/lib/jvm/java-10-openjdk-amd64
/usr/share/gdb/auto-load/usr/lib/jvm/java-10-openjdk-amd64/jre
/usr/share/gdb/auto-load/usr/lib/jvm/java-10-openjdk-amd64/jre/lib
/usr/share/gdb/auto-load/usr/lib/jvm/java-10-openjdk-amd64/jre/lib/server
/usr/share/gdb/auto-load/usr/lib/jvm/java-10-openjdk-amd64/jre/lib/server/libjvm.so-gdb.py
/usr/share/gdb/auto-load/usr/lib/jvm/java-9-openjdk-amd64
/usr/share/gdb/auto-load/usr/lib/jvm/java-9-openjdk-amd64/jre
/usr/share/gdb/auto-load/usr/lib/jvm/java-9-openjdk-amd64/jre/lib
/usr/share/gdb/auto-load/usr/lib/jvm/java-9-openjdk-amd64/jre/lib/server
/usr/share/gdb/auto-load/usr/lib/jvm/java-9-openjdk-amd64/jre/lib/server/libjvm.so-gdb.py


Is there a way to prevent these plugins from being loaded to see whether the
segfault occurs when gdb is not trying to load the JVM independently of Octave
trying to load it?

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  <http://savannah.gnu.org/bugs/?53733>

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