Bug 1290589

Summary: ship sysctl file enabling vm.allocate_pgste for s390x kvm
Product: [Fedora] Fedora Reporter: Jan Stodola <jstodola>
Component: qemuAssignee: Fedora Virtualization Maintainers <virt-maint>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 23CC: agedosier, amit.shah, berrange, cfergeau, clalancette, crobinso, dan, dwmw2, itamar, jforbes, laine, libvirt-maint, pbonzini, rjones, veillard, virt-maint
Target Milestone: ---   
Target Release: ---   
Hardware: s390x   
OS: Linux   
Whiteboard:
Fixed In Version: qemu-2.4.1-9.fc23 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-05-15 05:27:51 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: 467765    
Attachments:
Description Flags
fedora23_install.xml none

Description Jan Stodola 2015-12-10 21:33:09 UTC 
Description of problem:
An attempt to start a VM on an s390x host fails with the following error:

[root@rtt8 ~]# virsh start fedora23 --console
error: Failed to start domain fedora23
error: internal error: early end of file from monitor: possible problem:
ioctl(KVM_CREATE_VM) failed: 22 Invalid argument
Host kernel setup problem detected. Please verify:
- for kernels supporting the switch_amode or user_mode parameters, whether
  user space is running in primary address space
- for kernels supporting the vm.allocate_pgste sysctl, whether it is enabled
failed to initialize KVM: Invalid argument

"sysctl vm.allocate_pgste=1" fixes this issue, but this should be set automatically, not by the user.


Version-Release number of selected component (if applicable):
kernel-4.2.6-300.fc23.s390x
libvirt-1.2.18.1-2.fc23.s390x
qemu-kvm-2.4.1-1.fc23.s390x

How reproducible:
always

Steps to Reproduce:
1. prepare an XML definition of a virtual machine (will be attached)
2. 
dnf install libvirt qemu-kvm
systemctl start libvirtd
cd /var/lib/libvirt/images/
qemu-img create -f qcow2 fedora23.img 6G
wget http://dl.fedoraproject.org/pub/fedora-secondary/releases/23/Server/s390x/os/images/kernel.img
wget http://dl.fedoraproject.org/pub/fedora-secondary/releases/23/Server/s390x/os/images/initrd.img
modprobe kvm
virsh define fedora23_install.xml
virsh start fedora23 --console

Actual results:
error: Failed to start domain fedora23
error: internal error: early end of file from monitor: possible problem:
ioctl(KVM_CREATE_VM) failed: 22 Invalid argument

Expected results:
VM starts
Comment 1 Jan Stodola 2015-12-10 21:34:33 UTC 
Created attachment 1104493 [details]
fedora23_install.xml

For additional info see the following thread:
https://www.mail-archive.com/kvm@vger.kernel.org/msg115576.html
Comment 2 Cole Robinson 2015-12-24 00:18:48 UTC 
heh and I even replied to that thread in april but completely forgot about it. Fix is to ship the sysctl file in the qemu-kvm package for s390x arch
Comment 3 Cole Robinson 2016-05-02 20:16:29 UTC 
This change was made in f24 but still need to backport it to f23 package
Comment 4 Fedora Update System 2016-05-10 13:59:42 UTC 
qemu-2.4.1-9.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-f2b1f07256
Comment 5 Fedora Update System 2016-05-12 09:35:41 UTC 
qemu-2.4.1-9.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-f2b1f07256
Comment 6 Fedora Update System 2016-05-15 05:25:18 UTC 
qemu-2.4.1-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.