SIGSEGV in __nss_hosts_lookup crashing OpenJDK when Java reads updated jar files

[Markus Kilås]

1) Ubuntu 12.04.1 LTS
2) openjdk-6-jre 6b24-1.11.3-1ubuntu0.12.04.1
openjdk-6-jdk 6b24-1.11.3-1ubuntu0.12.04.1
3) The Java application NetBeans IDE to not crash from times to time
4) The application crashes with a segmentation fault maybe two times per working day

[Markus Kilås (markuskilas)]

Notice that this is not only related to NetBeans IDE but also affects other applications that reads JAR files such as JBoss application server when doing an hot redeploy of an Java EE application.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[boecko (andy-boeckler)]

this has nothing todo with __nss_hosts_lookup

I had the same message with another JAVA-progrom
After installing libc6-dbg and examing the coredump, you'll see the real libc6-function

$ gdb $JAVA_HOME/bin/java core
#0 0x00007f22481e11e5 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007f22481e4398 in __GI_abort () at abort.c:90
#2 0x00007f2247bcb865 in os::abort(bool) () from /media/vg0-work/java/jdk1.7.0_21/jre/lib/amd64/server/libjvm.so
#3 0x00007f2247d2bb77 in VMError::report_and_die() () from /media/vg0-work/java/jdk1.7.0_21/jre/lib/amd64/server/libjvm.so
#4 0x00007f2247bcf370 in JVM_handle_linux_signal () from /media/vg0-work/java/jdk1.7.0_21/jre/lib/amd64/server/libjvm.so
#5 <signal handler called>
#6 __memmove_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:2513
#7 0x00007f22479fc6c5 in jni_SetByteArrayRegion () from /media/vg0-work/java/jdk1.7.0_21/jre/lib/amd64/server/libjvm.so

So the SIGSEGV signal is coming from __memmove_ssse3

Note: i've tried openjdk-6, openjdk-7 and jdk1.7.0_21. Getting the same errror everytime.