Core dump files are not compressed on Gaia OS after upgrading from SecurePlatform OS

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Solution ID	sk98341
Product	Security Gateway, Security Management, Multi-Domain Management
Version	R75.40, R75.40VS, R75.45, R75.46, R75.47, R76, R77, R77.10
OS	Gaia
Platform / Model	All
Date Created	29-Jan-2014
Last Modified	28-Dec-2015

Symptoms

Core dump files are generated as expected - /var/log/dump/usermode/*.core, but files are not compressed (*.core.gz).
Issue occurs on the machine that was upgraded from SecurePlatform OS to Gaia OS.
Issue does not occur on the machine with cleanly installed Gaia OS.

Cause

The following line is missing from the value of /proc/sys/kernel/core_pattern parameter:
|/etc/coredump/compress.sh

[Expert@Gaia]# cat /proc/sys/kernel/core_pattern
/var/log/dump/usermode/%e.%p.core
[Expert@Gaia]#

The /etc/sysctl.conf file contains the core dump pattern.
By design, during the upgrade, the /etc/sysctl.conf file is not changed (to keep the user's settings).

The kernel core dump pattern differs between SecurePlatform OS and Gaia OS:

On SecurePlatform OS:

[Expert@SecurePlatform]# grep core_pattern /etc/sysctl.conf
kernel.core_pattern = /var/log/dump/usermode/%e.%p.core
[Expert@SecurePlatform]#

[Expert@SecurePlatform]# cat /proc/sys/kernel/core_pattern
/var/log/dump/usermode/%e.%p.core
[Expert@SecurePlatform]#

On Gaia OS:

[Expert@Gaia]# grep core_pattern /etc/sysctl.conf
kernel.core_pattern = |/etc/coredump/compress.sh /var/log/dump/usermode/%e.%p.core
[Expert@Gaia]#

[Expert@Gaia]# cat /proc/sys/kernel/core_pattern
|/etc/coredump/compress.sh /var/log/dump/usermode/%e.%p.core
[Expert@Gaia]#

Solution

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