[Bug 741884] New: no /proc/acpi/processor/
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c0 Summary: no /proc/acpi/processor/ Classification: openSUSE Product: openSUSE 12.1 Version: Final Platform: x86-64 OS/Version: SuSE Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: giecrilj@stegny.2a.pl QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1 19.2.1.3. Putting the Processor to Sleep (C-states)¶ Modern processors have several power saving modes called C-states. They reflect the capability of an idle processor to turn off unused components in order to save power. The operating system puts the processor to sleep whenever there is no activity. In this case, the operating system sends the CPU a halt command. There are three idle states: C1, C2, and C3. In the most economic state, C3, even the synchronization of the processor cache with the main memory is halted. Therefore, this state can only be applied if no other device modifies the contents of the main memory via bus master activity. Some drivers prevent the use of C3. The current state is displayed in /proc/acpi/processor/*/power. Or isn‘t it? Reproducible: Always Steps to Reproduce: 1. { ls /proc/acpi/processor/; } Actual Results: 1. ls: cannot access /proc/acpi/processor/: No such file or directory Expected Results: 1. Something. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c Christopher Yeleighton <giecrilj@stegny.2a.pl> changed: What |Removed |Added ---------------------------------------------------------------------------- URL| |http://doc.opensuse.org/doc | |umentation/html/openSUSE/op | |ensuse-reference/cha.pmanag | |e.html#sec.pmanage.powernow | |.sleep -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c1 Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jeffm@suse.com, | |rjw@suse.com Component|Kernel |Documentation AssignedTo|kernel-maintainers@forge.pr |ke@suse.com |ovo.novell.com | QAContact|qa@suse.de |ke@suse.com --- Comment #1 from Jeff Mahoney <jeffm@suse.com> 2012-03-14 17:12:54 EDT --- This is a documentation issue. The interfaces were removed purposefully. commit d09fe55510257f1acd21ea80a9bdd7c72b5895b3 Author: Zhang Rui <rui.zhang@intel.com> Date: Thu Jul 15 10:46:41 2010 +0800 ACPI processor: remove deprecated ACPI procfs I/F Remove deprecated ACPI processor procfs I/F, including: /proc/acpi/processor/CPUX/power /proc/acpi/processor/CPUX/limit /proc/acpi/processor/CPUX/info /proc/acpi/processor/CPUX/throttling still exists, as we don't have sysfs I/F available for now. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> commit cef6e8a3790d6bdc305496629c357a56001d59a6 Author: Zhang Rui <rui.zhang@intel.com> Date: Mon Dec 6 15:04:15 2010 +0800 ACPI processor: remove processor throttling control procfs I/F Remove deprecated ACPI process procfs I/F for throttling control. This is because the t-state control should only be done in kernel, when system is in a overheating state. Now users can only change the processor t-state indirectly, by poking the cooling device sysfs I/F of the processor. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c Karl Eichwalder <ke@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|ke@suse.com |fs@suse.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c2 Frank Sundermeyer <fs@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED --- Comment #2 from Frank Sundermeyer <fs@suse.com> 2012-03-23 09:32:47 UTC --- Thanks for pointing at this issue! The documentation in Admin Guide on Power Management at CPU level is outdated and should have been replaced by a pointer to the new version of that chapter in the Tuning Guide. A fix for this problem will be released with the next online update. The correct version can be found in the Tuning Guide, Chapter 11. Power Management http://www.suse.com/documentation/sles11/book_sle_tuning/data/sec_tuning_pow... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c3 --- Comment #3 from Frank Sundermeyer <fs@suse.com> 2012-03-23 10:54:56 UTC --- Respective changes for the Admin Guide, Chapter Power Management submitted to SVN. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=741884 https://bugzilla.novell.com/show_bug.cgi?id=741884#c4 Frank Sundermeyer <fs@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |CLOSED Resolution| |FIXED --- Comment #4 from Frank Sundermeyer <fs@suse.com> 2012-10-02 11:25:26 UTC --- Online Update has been released. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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