WebSphere JVM Crash

Issue

• The WebSphere JVM crashes when a particular MDM procedure is called.

• The following failing stack trace is listed below from an IBM and Informatica analysis:

.                                                                       
.                                                                       
#9  0x00002aaaaace9c5d in structuredSignalHandler ()                    
   from                                                                 
/opt/IBM/WebSphere/AppServer/java/jre/lib/amd64/compressedrefs/libj9vm24
.so                                                                     
#10 0x00002aaaab07d161 in masterSynchSignalHandler ()                   
   from                                                                 
/opt/IBM/WebSphere/AppServer/java/jre/lib/amd64/compressedrefs/libj9prt2
4.so                                                                    
#11 <signal handler called>                                             
#12 0x000000355d40a3e2 in _dl_relocate_object () from                   
/lib64/ld-linux-x86-64.so.2 << faling stack                             
#13 0x000000355d410da6 in dl_open_worker () from                        
/lib64/ld-linux-x86-64.so.2                                             
#14 0x000000355d40ceb6 in _dl_catch_error () from                       
/lib64/ld-linux-x86-64.so.2                                             
#15 0x000000355d41066c in _dl_open () from /lib64/ld-linux-x86-64.so.2  
#16 0x000000355dc00f9a in dlopen_doit () from /lib64/libdl.so.2         
#17 0x000000355d40ceb6 in _dl_catch_error () from                       
/lib64/ld-linux-x86-64.so.2                                             
#18 0x000000355dc0150d in _dlerror_run () from /lib64/libdl.so.2        
#19 0x000000355dc00f11 in dlopen@@GLIBC_2.2.5 () from /lib64/libdl.so.2 
#20 0x00002aaaab07e3cc in j9sl_open_shared_library () 

• From the native stack it is clear that failing function is _dl_relocate_object() in /lib64/ld-linux-x86-64.so.2, which is a OS library i.e Linux OS with terminated with with signal 11, Segmentation fault. From the javacore it is also confirmed that crash is in Module: /lib64/ld-linux-x86-64.so.2() At the time of this crash, the JDK is telling Linux to open a shared library. So this is a jni call. This call then goes into 6 different Linux function before it crashes.