Bug 740664

Summary:	xen-platform-pci needs to be builtin or part of initramfs
Product:	[Fedora] Fedora	Reporter:	Jeremy Fitzhardinge <jeremy>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	16	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, pbonzini
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	kernel-3.1.0-0.rc8.git0.0.fc16	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-10-04 21:17:08 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Jeremy Fitzhardinge 2011-09-22 21:11:17 UTC

Description of problem:
When running F16 as an HVM Xen domain, the xen-platform-pci driver needs to be present.  If it isn't, then the kernel will unplug the emulated disk and net devices, but never load the corresponding Xen netfront and blkfront drivers, resulting in a system which has no root filesystem.

Version-Release number of selected component (if applicable):
kernel-3.1.0-0.rc6.git0.3.fc16.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Install kernel
2. Boot as HVM under Xen
3.
  
Actual results:
Boot fails, because it can't find a root filesystem (or any LVM disks)

Expected results:
Boot on PV drivers

Additional info:
Adding "xen-platform-pci" to the dracut config and rebuilding fixes this for me, but the driver should probably just be built in rather than modular.

Comment 1 Dave Jones 2011-09-22 22:34:10 UTC

ok, made this =y.  I assume there's no downside to having this always loaded on baremetal ?

Comment 2 Jeremy Fitzhardinge 2011-09-22 22:45:51 UTC

Nope.  It's just a PCI device driver, so if the device isn't present it does nothing.

Comment 3 Fedora Update System 2011-09-28 14:36:06 UTC

kernel-3.1.0-0.rc8.git0.0.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/kernel-3.1.0-0.rc8.git0.0.fc16

Comment 4 Fedora Update System 2011-09-28 18:51:30 UTC

Package kernel-3.1.0-0.rc8.git0.0.fc16:
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing kernel-3.1.0-0.rc8.git0.0.fc16'
as soon as you are able to, then reboot.
Please go to the following url:
https://admin.fedoraproject.org/updates/kernel-3.1.0-0.rc8.git0.0.fc16
then log in and leave karma (feedback).

Comment 5 Fedora Update System 2011-10-04 21:16:58 UTC

kernel-3.1.0-0.rc8.git0.0.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Paolo Bonzini 2011-10-20 16:58:05 UTC

*** Bug 747617 has been marked as a duplicate of this bug. ***