APAR status
Closed as program error.
Error description
Error Message: If there is an existing subdirectory named 'core' in the current working directory of the JVM, the JVM may rename that directory when a system dump is produced. The problem only occurs on Linux, and only occurs if the default OS system dump name is 'core' (ie. /proc/sys/kernel/core_uses_pid is set to 0). . Stack Trace: N/A . The problem may also occur with other non-regular files, for example symbolic links.
Local fix
Set /proc/sys/kernel/core_uses_pid to 1. The system dump produced by the Linux OS will then have the process ID (PID) appended to the core filename, avoiding the clash with the existing directory name.
Problem summary
The problem is caused when the file name of the expected OS system dump clashes with an existing directory name.
Problem conclusion
The JVM has been updated to prevent the directory from being renamed. The following new error message is produced: JVMPORT048E Failed to create system dump because a non-regular file "/<current directory>/core" exists with the same name as the expected system dump file. . This APAR will be fixed in the following Java Releases: 8 SR2 (8.0.2.0) . 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 number
IV77014
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
270
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-09-14
Closed date
2015-09-14
Last modified date
2015-09-14
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
J9 COMMON CODE
Fixed component ID
620700127
Applicable component levels
R270 PSY
UP
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Document Information
Modified date:
21 February 2022