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Created attachment 1120258[details]
Script to reproduce memory dump
Description of problem:Memory dump error when running SAS works applications on latest patch
Version-Release number of selected component (if applicable):
How reproducible:Run attached scripts
I have completed the root cause for this issue.
I have isolated the problem to an issue that is present within the latest OS patching for RHEL6. This new bug was triggered in a section of code within my platform middleware.
PFA a set of two scripts that can be used to induce the Red Hat bug:
· testcase.ksh
· testcase_sub.ksh
To trigger the issue, you only need to copy the two scripts to the same directory and then run testcase.ksh.
Here is the output when running the script on one of RHEL6 servers at the earlier patch level:
*:/home/mware/test01> ./testcase.ksh
In script #1: -- testcase.ksh
In script #1: calling testcase_sub.ksh
In script #2: -- testcase_sub.ksh
In script #1: RC=0
And here is the output when running the script on another RHEL6 server with the updated patch level:
*:/home/mware/test01> ./testcase.ksh
In script #1: -- testcase.ksh
In script #1: calling testcase_sub.ksh
In script #2: -- testcase_sub.ksh
./testcase.ksh: line 6: 27982: Memory fault(coredump)
In script #1: RC=267
2.6.32-573.12.1.el6.x86_64 #1 SMP Mon Nov 23 12:55:32 EST 2015 x86_64 x86_64 x86_64 GNU/Linux
Note that the core dump produces the return code value of 267 that the application team was reporting.
Actual results: Memory Fault
Expected results: Successful run
Additional info: Scripts to reproduce issue attached
Created attachment 1120258 [details] Script to reproduce memory dump Description of problem:Memory dump error when running SAS works applications on latest patch Version-Release number of selected component (if applicable): How reproducible:Run attached scripts I have completed the root cause for this issue. I have isolated the problem to an issue that is present within the latest OS patching for RHEL6. This new bug was triggered in a section of code within my platform middleware. PFA a set of two scripts that can be used to induce the Red Hat bug: · testcase.ksh · testcase_sub.ksh To trigger the issue, you only need to copy the two scripts to the same directory and then run testcase.ksh. Here is the output when running the script on one of RHEL6 servers at the earlier patch level: *:/home/mware/test01> ./testcase.ksh In script #1: -- testcase.ksh In script #1: calling testcase_sub.ksh In script #2: -- testcase_sub.ksh In script #1: RC=0 And here is the output when running the script on another RHEL6 server with the updated patch level: *:/home/mware/test01> ./testcase.ksh In script #1: -- testcase.ksh In script #1: calling testcase_sub.ksh In script #2: -- testcase_sub.ksh ./testcase.ksh: line 6: 27982: Memory fault(coredump) In script #1: RC=267 2.6.32-573.12.1.el6.x86_64 #1 SMP Mon Nov 23 12:55:32 EST 2015 x86_64 x86_64 x86_64 GNU/Linux Note that the core dump produces the return code value of 267 that the application team was reporting. Actual results: Memory Fault Expected results: Successful run Additional info: Scripts to reproduce issue attached