Bug 810107

Summary:	Kdump can't use a renamed NIC for remote dump.
Product:	[Fedora] Fedora	Reporter:	WANG Chao <chaowang>
Component:	kexec-tools	Assignee:	Baoquan He <bhe>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	17	CC:	georgi.georgiev, nhorman, ruyang, xiyou.wangcong
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	810111 (view as bug list)		Environment:
Last Closed:	2013-05-27 06:12:54 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:
Bug Depends On:
Bug Blocks:	810111

Description WANG Chao 2012-04-05 07:46:45 UTC

Description of problem:

In first kernel, udev rule may rename an NIC from eth0 to em1. In this case when building kdump image, 99kdumpbase/module-setup.sh will record em1 in /etc/cmdline.d/40ip.conf in the kdump initramfs.

But on second kernel, we don't have that renaming udev rule, so the original NIC will appear to be eth0 ( not renamed to be em1). Because we have configured kdump to use em1 when building kdump image, and we don't have em1 on second kernel, dump to a remote target will fail.

Version-Release number of selected component (if applicable):
kexec-tools-2.0.3-42.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:
On first kernel booting:
[   25.221669] igb 0000:01:00.0: eth0: (PCIe:2.5Gb/s:Width x4) 00:15:17:a2:71:b4 
[   25.229718] igb 0000:01:00.0: eth0: PBA No: 1040FF-0FF 
[   25.235470] igb 0000:01:00.0: Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s) 
[   25.244172] igb 0000:01:00.1: PCI INT A -> GSI 28 (level, low) -> IRQ 28
[..]
[   25.680989] udevd[668]: renamed network interface eth0 to em1

On second kernel, udevd won't rename the NIC name.

Comment 1 Fedora Admin XMLRPC Client 2012-04-16 06:12:58 UTC

This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.

Comment 2 Fedora Admin XMLRPC Client 2013-02-25 08:06:20 UTC

This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.