Bug 1084607 - unsighty message about /devices/system/cpu/cpu1/cpufreq on hibernate
Summary: unsighty message about /devices/system/cpu/cpu1/cpufreq on hibernate
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 20
Hardware: x86_64
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-04-04 20:12 UTC by Hin-Tak Leung
Modified: 2014-08-07 06:57 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2014-08-07 06:57:06 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)
hibernation message from dmesg (3.09 KB, text/plain)
2014-04-04 20:14 UTC, Hin-Tak Leung 		no flags Details
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Description Hin-Tak Leung 2014-04-04 20:12:52 UTC 
Description of problem:
suspend/hibernate brings about unsighty messages and call traces about 

[ 1082.015041] WARNING: CPU: 0 PID: 4537 at fs/sysfs/dir.c:486 sysfs_warn_dup+0x86/0xa0()
[ 1082.015042] sysfs: cannot create duplicate filename '/devices/system/cpu/cpu1/cpufreq'

Full message example attached.

Version-Release number of selected component (if applicable):
kernel-3.13.5-200.fc20.x86_64
kernel-3.13.6-200.fc20.x86_64
kernel-3.13.7-200.fc20.x86_64

gnome-power-manager-3.10.1-1.fc20.x86_64

How reproducible:
Always lately - at least for the kernels above. I only started to collect these recently.

Steps to Reproduce:
1. suspend/hibernate
2. wake up and watch dmesg
3.

Actual results:
unsighty message

Expected results:
no unsightly message

Additional info:
Anything to do with power manager or cpu freq changer which gnome used to have? I had that applet in gnome 2 but it seems not to be in gnome 3 any more.
Comment 1 Hin-Tak Leung 2014-04-04 20:14:07 UTC 
Created attachment 882850 [details]
hibernation message from dmesg
Comment 2 Hin-Tak Leung 2014-04-30 01:50:00 UTC 
still a problem with kernel-3.13.10-200.fc20.x86_64

after systemctl hibernate,

[365648.649652] WARNING: CPU: 0 PID: 3501 at fs/sysfs/dir.c:486 sysfs_warn_dup+0x86/0xa0()
[365648.649653] sysfs: cannot create duplicate filename '/devices/system/cpu/cpu1/cpufreq'
...
Comment 3 Justin M. Forbes 2014-05-21 19:38:01 UTC 
*********** MASS BUG UPDATE **************

We apologize for the inconvenience.  There is a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs.

Fedora 20 has now been rebased to 3.14.4-200.fc20.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.

If you experience different issues, please open a new bug report for those.
Comment 4 Hin-Tak Leung 2014-05-25 03:59:13 UTC 
3.14.4-200.fc20 has a worse problem (cannot hibernate - Bug 1094983) so this minor problem reported here with 3.13.x cannot be seen with 3.14.4-200.fc20 .

3.14.4-200.fc20 is even worse.
Comment 5 Hin-Tak Leung 2014-08-06 04:26:24 UTC 
both 3.16.0-1.fc21.x86_64 and 3.15.7-200.fc20.x86_64 hibernates without that unsightyy message.
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