Bug 834789 - Zsmalloc kernel doesn't come with a licence information
Zsmalloc kernel doesn't come with a licence information
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
unspecified Severity low
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-06-23 11:49 EDT by Antonio Augusto Santos
Modified: 2012-06-23 12:28 EDT (History)
5 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-06-23 12:28:00 EDT
Type: Bug
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Description Antonio Augusto Santos 2012-06-23 11:49:57 EDT
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):

How reproducible:

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
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 12:28:00 EDT
Fedora doesn't build or support ZSMALLOC and this is an issue that needs to be fixed upstream.

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