Bug 834789

Summary:	Zsmalloc kernel doesn't come with a licence information
Product:	[Fedora] Fedora	Reporter:	Antonio Augusto Santos <mkhaos7>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	17	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-23 16:28:00 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 Antonio Augusto Santos 2012-06-23 15:49:57 UTC

Description of problem:
Can't load module zcache nor zram on 3.4.x kernel series.
The problem appears to be with licence declaration of the module, as described here http://driverdev.linuxdriverproject.org/pipermail/devel/2012-June/027377.html and here http://lists.debian.org/debian-kernel/2012/06/msg00588.html .

Version-Release number of selected component (if applicable):
kernel-3.4.3-1.fc17.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Install kmod-staging from rpmfusion, or build a new kernel with zsmalloc and zcache/zram as module
2. Try to load any of the modules
3.
  
Actual results:
# modprobe zcache
ERROR: could not insert 'zcache': No such file or directory
# tail /var/log/messages
zsmalloc: Unknown symbol alloc_vm_area (err 0)
zsmalloc: Unknown symbol free_vm_area (err 0)
zsmalloc: Unknown symbol __supported_pte_mask (err 0)


Expected results:
The module load without errors


Additional info:
There is already a patch for it: http://driverdev.linuxdriverproject.org/pipermail/devel/2012-June/027377.html. I haven't tried building it, and don't know if the patch has hit upstream.

Comment 1 Josh Boyer 2012-06-23 16:28:00 UTC

Fedora doesn't build or support ZSMALLOC and this is an issue that needs to be fixed upstream.