Bug 1004456 - CPU-specific kernel drivers fail to autoload with 3.11 kernel
CPU-specific kernel drivers fail to autoload with 3.11 kernel
Product: Fedora
Classification: Fedora
Component: systemd (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: systemd-maint
Fedora Extras Quality Assurance
Depends On:
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Reported: 2013-09-04 12:27 EDT by David Woodhouse
Modified: 2013-09-09 20:00 EDT (History)
7 users (show)

See Also:
Fixed In Version: systemd-204-11.fc19
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2013-09-09 20:00:51 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description David Woodhouse 2013-09-04 12:27:37 EDT

> After a recent change present in 3.11-rc1 there is a driver, called processor, 
> that can be bound to the CPU devices whose sysfs directories are located under 
> /sys/devices/system/cpu/. A side effect of this is that, after the driver has 
> been bound to those devices, the kernel adds DRIVER=processor to ENV for CPU
> uevents and they don't match the default rule for autoloading modules matching 
> DRIVER!="?*", ENV{MODALIAS}=="?*", IMPORT{builtin}="kmod load $env{MODALIAS}" > 
> any more. However, there are some modules whose module aliases match specific 
> CPU features through the modalias string and those modules should be loaded 
> automatically if a compatible CPU is present. Yet, with the processor driver 
> bound to the CPU devices the above rule is not sufficient for that, so we need 
> a new default udev rule allowing those modules to be autoloaded even if the 
> CPU devices have drivers.
Comment 2 Fedora Update System 2013-09-05 08:23:13 EDT
systemd-204-11.fc19 has been submitted as an update for Fedora 19.
Comment 3 Fedora Update System 2013-09-06 01:15:44 EDT
Package systemd-204-11.fc19:
* should fix your issue,
* was pushed to the Fedora 19 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing systemd-204-11.fc19'
as soon as you are able to, then reboot.
Please go to the following url:
then log in and leave karma (feedback).
Comment 4 Fedora Update System 2013-09-09 20:00:51 EDT
systemd-204-11.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

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