IJ24946: JVM CRASH DURING JIT COMPILATION
APAR status
Closed as program error.
Error description
Error Message: The JVM stops unexpectedly. The javacore will
indicate
Dump Event "abort" (00020000) received
.
Stack Trace: Use of a native debugger will show that the crash
occurred in a JIT compilation thread and the stack will include
the following key entries:
#37 0x00007f9dbfd3b727 in
generateLabelInstruction(TR_X86OpCodes, TR::Node*,
TR::LabelSymbol*, TR::CodeGenerator*) ()
   from
./<installdir>/java/jre/lib/amd64/compressedrefs/libj9jit29.so
#38 0x00007f9dbfd42a46 in
TR_OutlinedInstructionsGenerator::<TLD>TR_OutlinedInstructionsGe
nerator() () from
./<installdir>/java/jre/lib/amd64/compressedrefs/libj9jit29.so
.
Local fix
The problem can usually be avoided by adjusting the memory
allocated to the JIT for temporary use during compilation.
The default value is 256MB, a value of 384MB would be a
reasonable starting point that should make the problem much less
likely to occur without increasing the JVM memory usage too
much. This can be done with the following option (units in
kilobytes):
-Xjit:scratchSpaceLimit=393216
Problem summary
If the memory available for the JIT compiler is exhausted at a
very specific point in the compilation it causes an exception to
be thrown from a C++ destructor, resulting in the JVM abruptly
terminating. This problem is specific to the X86 platform.
Problem conclusion
The mechanism for generating out of line instruction sequences
was changed to avoid the need to allocate memory in a
destructor. See OMR issue 4846 for an in-depth technical
discussion (https://github.com/eclipse/omr/issues/4846)
.
This APAR will be fixed in the following Java Releases:
   8    SR6 FP11  (8.0.6.11)
.
Contact your IBM Product's Service Team for these Service
Refreshes and Fix Packs.
For those running stand-alone, information about the available
Service Refreshes and Fix Packs can be found at:
           https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR numberIJ24946
Reported component nameJIT
Reported component ID620700124
Reported release130
StatusCLOSED PER
PENoPE
HIPERNoHIPER
Special AttentionNoSpecatt / Xsystem
Submitted date2020-05-14
Closed date2020-05-26
Last modified date2020-05-26
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component nameJIT
Fixed component ID620700124
Applicable component levels

-Xjit:scratchSpaceLimit=393216