Bug 2109803

Summary: [Azure][RHEL-9] "kdumpctl: ERROR: src/skipcpio/skipcpio.c:191:main(): fwrite" after VM reboot
Product: Red Hat Enterprise Linux 9 Reporter: Yuxin Sun <yuxisun>
Component: dracutAssignee: dracut-maint-list
Status: CLOSED ERRATA QA Contact: Frantisek Sumsal <fsumsal>
Severity: medium Docs Contact:
Priority: medium    
Version: 9.1CC: dtardon, fsumsal, jieli, lichliu, linl, litian, pvalena, ruyang, xiawu, xiliang, xuli, xxiong, yacao, yoguo
Target Milestone: rcKeywords: Bugfix, Reproducer, Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: dracut-057-13.git20220816.el9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-11-15 11:22:12 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Yuxin Sun 2022-07-22 07:45:39 UTC 
Description of problem:
In RHEL-9.1 image on Hyper-V/Azure, after reboot, the kdump reports an error message in 'systemctl status kdump': 
kdumpctl[1287]: ERROR: src/skipcpio/skipcpio.c:191:main(): fwrite
* The kdump service works well. Not see feature impact.
* Not see it in RHEL-8.7.
* Not see it in an earlier RHEL-9.1(e.g. RHEL-9.1.0-20220529.0, kernel-5.14.0-100.el9.x86_64, kexec-tools-2.0.24-1.el9.x86_64 )

Version-Release number of selected component (if applicable):
RHEL-9.1.0-20220720.3
kernel-5.14.0-131.el9.x86_64
kexec-tools-2.0.24-4.el9.x86_64/kexec-tools-2.0.24-5.el9.x86_64
dracut-057-6.git20220718.el9.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Boot a RHEL-9.1 VM on Azure
2. Reboot the VM
3. systemctl status kdump

Actual results:
[root@wala9test107210916-vm1 ~]# systemctl status kdump
● kdump.service - Crash recovery kernel arming
     Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled; vendor preset: enabled)
     Active: active (exited) since Thu 2022-07-21 05:51:31 EDT; 29s ago
    Process: 1107 ExecStart=/usr/bin/kdumpctl start (code=exited, status=0/SUCCESS)
   Main PID: 1107 (code=exited, status=0/SUCCESS)
        CPU: 1.265s

Jul 21 05:51:27 wala9test107210916-vm1 systemd[1]: Starting Crash recovery kernel arming...
Jul 21 05:51:28 wala9test107210916-vm1 kdumpctl[1287]: ERROR: src/skipcpio/skipcpio.c:191:main(): fwrite
Jul 21 05:51:29 wala9test107210916-vm1 kdumpctl[1375]: ERROR: src/skipcpio/skipcpio.c:191:main(): fwrite
Jul 21 05:51:31 wala9test107210916-vm1 kdumpctl[1119]: kdump: kexec: loaded kdump kernel
Jul 21 05:51:31 wala9test107210916-vm1 kdumpctl[1119]: kdump: Starting kdump: [OK]
Jul 21 05:51:31 wala9test107210916-vm1 systemd[1]: Finished Crash recovery kernel arming.

Additional info:
Comment 10 David Tardon 2022-08-16 11:23:34 UTC 
Minimal reproducer:

# systemd-run -t sh -c '/usr/lib/dracut/skipcpio /path/to/any/file | false'
Comment 17 errata-xmlrpc 2022-11-15 11:22:12 UTC 
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 (dracut 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-2022:8379