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Description of problem:
RHEL 8 ships with core ulimit set to infinity. As systemd-core handles this (changed from abrt), we should disable this to align with RHEL 7.
Version-Release number of selected component (if applicable):
systemd-239
How reproducible:
Everytime
Steps to Reproduce:
1. Start RHEL 8
2. ulimit -c
3.
Actual results:
infinity
Expected results:
0
Additional info:
# systemctl show --no-pager | grep -i core
DefaultLimitCORE=infinity
DefaultLimitCORESoft=infinity
We are using `ulimit -c unlimited` as a non-root user. We just updated our lab test machine to use RHEL-8.5.0-20210628.n.2, which has systemd-239-48.el8 installed. We are unable to execute that command as we could on older versions (i.e. systemd-239-45.el8). When we go in and revert the change referenced above ("DefaultLimitCORE=0"), our desired functionality is restored.
[awalsh@localhost ~]$ rpm -qa systemd
systemd-239-48.el8.x86_64
[awalsh@localhost ~]$ grep DefaultLimitCORE /etc/systemd/system.conf
DefaultLimitCORE=0
[awalsh@localhost ~]$ ulimit -c
0
[awalsh@localhost ~]$ ulimit -c unlimited
bash: ulimit: core file size: cannot modify limit: Operation not permitted
--- Comment out the above DefaultLimitCORE line and reboot ---
[awalsh@localhost ~]$ grep DefaultLimitCORE /etc/systemd/system.conf
#DefaultLimitCORE=0
[awalsh@localhost ~]$ ulimit -c
unlimited
[awalsh@localhost ~]$ ulimit -c unlimited
[awalsh@localhost ~]$ rpm -qa systemd
systemd-239-48.el8.x86_64
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (systemd bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2021:4469