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Bug 2229287 - [RHEL 8.8] Kdump fails over NFS when using FQDN name if the system has two interfaces.
Summary: [RHEL 8.8] Kdump fails over NFS when using FQDN name if the system has two in...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: kexec-tools
Version: 8.8
Hardware: Unspecified
OS: Unspecified
high
unspecified
Target Milestone: rc
: ---
Assignee: Coiby
QA Contact: xiaoying yan
URL:
Whiteboard:
Depends On:
Blocks: 2232699
TreeView+ depends on / blocked
 
Reported: 2023-08-04 18:58 UTC by rcheerla
Modified: 2023-11-14 17:56 UTC (History)
5 users (show)

Fixed In Version: kexec-tools-2.0.26-8.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 2232699 (view as bug list)
Environment:
Last Closed: 2023-11-14 15:47:10 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-164637 0 None None None 2023-08-04 19:01:54 UTC
Red Hat Product Errata RHBA-2023:7080 0 None None None 2023-11-14 15:47:41 UTC

Description rcheerla 2023-08-04 18:58:50 UTC 
Description of problem: [RHEL 8.8] Kdump fails over NFS when using FQDN name if the system has two interfaces(NIC1 used to reach the NFS server and NIC2 used to reach DNS server).

Version-Release number of selected component (if applicable):

kexec-tools-2.0.25-5.el8_8.1.x86_64

How reproducible: Always in customer system. 


Steps to Reproduce:
1. On RHEL 8.8 system which is having 2 NIC cards, and both should be in two different network range. 
2. For example, NIC1 IP should be within the range of DNS server's IP, NIC2 IP should be within the range of NFS server's IP. 
3. install kexec-tools-2.0.25-5.el8_8.1.x86_64
4. Mount the NFS share with FQDN name, also add the entry in /etc/fstab file with FQDN name.
5. Add the nfs entry in /etc/kdump.conf file with FQDN name. 

~~~
default reboot
nfs <FQDN-name>:/nfsdump  
path /nfsdump
core_collector makedumpfile -c --message-level 1 -d 1
~~~


Actual results:

[   70.737299] kdump[548]: dump path "/kdumproot/nfsdump" is not mounted, trying to mount...
[   70.765322] kdump.sh[550]: mount.nfs: Failed to resolve server FQDN-name-of-nfs-server: Name or service not known    <<<-------
[   70.810298] kdump[552]: failed to dump to "/kdumproot/nfsdump", it's not a mount point!
[   70.852691] kdump[554]: saving vmcore failed


Expected results:

Kdump should work as expected upon using the FQDN name. 


Additional info: 

- After downgrading the kexec-tools package to kexec-tools-2.0.24-6.el8.x86_64 the issue is not reproducible. 
- Upon looking further, I have noticed that the issue introduced in the following kexec-tools-2.0.25-3.el8.x86_64.rpm  package. 
  The BZ is https://bugzilla.redhat.com/show_bug.cgi?id=1950282
Comment 9 Coiby 2023-08-10 08:00:37 UTC 
https://gitlab.com/redhat/centos-stream/rpms/kexec-tools/-/merge_requests/171
Comment 22 errata-xmlrpc 2023-11-14 15:47:10 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 (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-2023:7080
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