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Core file generated on exdata Oracle instance directory (Doc ID 2575997.1)

Last updated on JULY 22, 2020

Applies to:

Exadata X7-2 Hardware - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Env:
- Machine: Exadata X7-2
- OS : OL6
- DB : 18.4.0.0.0

1. core file generated in the following directory regularly at specific time everyday.

root@<HOST_NAME>:/<custom_directory>/app/oracle/inst1# ls -lrt
...
-rw------- 1 inst1 oinstall 58896384 2019-07-29 06:54 core.197740
-rw------- 1 inst1 oinstall 58896384 2019-07-29 06:54 core.32154
-rw------- 1 inst1 oinstall 58970112 2019-07-30 06:54 core.162766
-rw------- 1 inst1 oinstall 58966016 2019-07-31 06:53 core.193525
-rw------- 1 inst1 oinstall 58970112 2019-08-01 06:53 core.377001
-rw------- 1 inst1 oinstall 58970112 2019-08-01 06:53 core.43063
-rw------- 1 inst1 oinstall 58966016 2019-08-02 06:54 core.146568  >>>> stackx core file.
-rw------- 1 inst1 oinstall 58966016 2019-08-02 06:54 core.199451
-rw------- 1 inst1 oinstall 58966016 2019-08-03 06:54 core.79492
-rw------- 1 inst1 oinstall 58949632 2019-08-04 06:54 core.101648
-rw------- 1 inst1 oinstall 58953728 2019-08-05 06:53 core.190024
-rw------- 1 inst1 oinstall 58953728 2019-08-05 06:53 core.25679

 

2. From /var/log/messages

Aug 2 06:54:00 xxxxx kernel: [1260171.474696] <The name of DB JOB>[146568]: segfault at 7ffc3b957694 ip 0000000000424f7d sp 00007ffc3b957660 error 6 in bash[400000+d5000] 

 

3. stackx output:

-- Note:

Download stackx1_3.tar from (Doc ID 362791.1)

As root:

# cd /<custom_directory>/app/oracle/inst1

# stackx core.146568 > stacktrace.txt

# cat stacktrace.txt

######################################################################
stackx core / stack trace extraction utility
version 1.3 (c) 2005, 2006, 2007 Oracle Corp. all rights reserved.
Reporting: xxxxx
Machine :xxxxxx
OS Name : Linux
OS Ver : 4.1.12-94.8.6.el6uek.x86_64
CPU Type : 64
Core file: core.146568
Core date: 2019-08-05 17:01 core.146568
Tool(s) : /usr/bin/gdb
Program :
Core extraction section follows
######################################################################
No executables found for /bin/bash/<custom_directory>/app/oracle/inst1/SHELL/CRON/<The name of shell script>.sh CRON <Invalid_argument> in corefile core.146568 <<<<<<<<<<<< here: find invalid argument.

Changes

 None

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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