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Hi Gena,
I'm sorry I made a false promise that it'll be fixed in RHEL 8.4. I'm yet to get familiar with the development workflow and didn't realize I can't really make that promise before getting QA's blessing.
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 (kexec-tools 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-2021:1607
Not sure if I should file a new bug but here's what we have:
kexec-tools-2.0.20-57.el8_5.1.x86_64
4.18.0-193.el8.x86_64
Red Hat Enterprise Linux release 8.2 (Ootpa)
systemctl status kdump
● kdump.service - Crash recovery kernel arming
Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled; vendor preset: enabled)
Active: inactive (dead)
Condition: start condition failed at Mon 2022-02-14 13:02:36 EST; 3s ago
└─ ConditionKernelCommandLine=crashkernel was not met
cat /etc/kdump.conf |grep crash
# kernel after a kernel crash in the crash kernel(1st kernel) has happened.
# "/var/crash".
crashkernel=512M@64M
path /var/crash
The path does exist.
In /etc/default/grub:
GRUB_CMDLINE_LINUX="vconsole.keymap=us crashkernel=512M@64M vconsole.font=latarcyrheb-sun16 biosdevname=0"
I see in the kdump.conf file all the other options do NOT have an equal sign. I've tried it with and without a =.
sudo kdumpctl restart
kdump: kexec: unloaded kdump kernel
kdump: Stopping kdump: [OK]
kdump: No memory reserved for crash kernel
kdump: Starting kdump: [FAILED]
In /etc/sysctl.conf I set:
kernel.panic=0
kernel.unknown_nmi_panic=1
LMK if I should create a new bug.
Description of problem: kdump.service should not be started if crashkernel memory not reserved in kernel command line Version-Release number of selected component (if applicable): binary: kexec-tools-2.0.20-36.el8.x86_64.rpm source: kexec-tools-2.0.20-36.el8.src.rpm How reproducible: always Steps to Reproduce: 1. Install CentOS Stream 8 with KDUMP disabled 2. reboot 3. check kdump.service status: systemctl status kdump.service Actual results: ● kdump.service - Crash recovery kernel arming Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Sun 2021-01-10 00:59:31 EET; 11h ago Main PID: 1125 (code=exited, status=1/FAILURE) Jan 10 00:59:31 centos-stream systemd[1]: Starting Crash recovery kernel arming... Jan 10 00:59:31 centos-stream kdumpctl[1125]: No memory reserved for crash kernel Jan 10 00:59:31 centos-stream kdumpctl[1125]: Starting kdump: [FAILED] Jan 10 00:59:31 centos-stream systemd[1]: kdump.service: Main process exited, code=exited, status=1/FAILURE Jan 10 00:59:31 centos-stream systemd[1]: kdump.service: Failed with result 'exit-code'. Jan 10 00:59:31 centos-stream systemd[1]: Failed to start Crash recovery kernel arming. Expected results: # systemctl status kdump.service ● kdump.service - Crash recovery kernel arming Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled; vendor preset: enabled) Active: inactive (dead) Condition: start condition failed at Sun 2021-01-10 12:47:40 EET; 9s ago └─ ConditionKernelCommandLine=crashkernel was not met Additional info: Patch to fix this bug: # diff -u /usr/lib/systemd/system/kdump.service.orig /usr/lib/systemd/system/kdump.service --- /usr/lib/systemd/system/kdump.service.orig 2020-11-10 19:59:30.000000000 +0200 +++ /usr/lib/systemd/system/kdump.service 2021-01-10 12:46:51.433000000 +0200 @@ -2,6 +2,7 @@ Description=Crash recovery kernel arming After=network.target network-online.target remote-fs.target basic.target DefaultDependencies=no +ConditionKernelCommandLine=crashkernel [Service] Type=oneshot