From: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-acpi@vger.kernel.org, linux-pm@lists.linux-foundation.org
Subject: Re: acpi_idle and max_cpus
Date: Mon, 18 Jun 2012 17:55:30 +0530 [thread overview]
Message-ID: <4FDF1E3A.6010200@linux.vnet.ibm.com> (raw)
In-Reply-To: <4FDE3B96.8030306@linaro.org>
Hi Daniel,
On 06/18/2012 01:48 AM, Daniel Lezcano wrote:
> On 06/15/2012 05:28 PM, Daniel Lezcano wrote:
>>
>> Hi all,
>>
>> I have a dual core Intel T9500.
>>
>> I boot the cpu with the acpi_idle driver and intel_idle enabled in the
>> config.
>>
>> The kernel is booted with maxcpus=1.
>>
>> After the system has boot, I put cpu1 online via sysfs.
>>
>> But I don't see any 'cpuidle' directory in the cpu's sysfs entry:
>>
>> /sys/devices/system/cpu/cpu1/cpuidle (?)
>>
>> When I look at the code I see the notifier is present for hotplug in
>> processor_driver.c and the cpuidle intel init routine should be called
>> there.
>>
Yes, we have a hotplug notifier.
Commit 99b72508 by Thomas Renninger fixed this issue.
Please let me know which kernel version you are running and what is idle
driver registered ?
>> I am wondering is it a bug or an expected behavior ?
>
> Any thoughts on that ?
>
> Thanks
> -- Daniel
>
>
Cheers
Deepthi
next prev parent reply other threads:[~2012-06-18 12:25 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-15 15:28 acpi_idle and max_cpus Daniel Lezcano
2012-06-17 20:18 ` Daniel Lezcano
2012-06-18 12:25 ` Deepthi Dharwar [this message]
2012-06-18 12:54 ` [linux-pm] " Daniel Lezcano
2012-06-19 6:54 ` Deepthi Dharwar
2012-06-19 7:03 ` Srivatsa S. Bhat
2012-06-19 7:18 ` Daniel Lezcano
2012-06-19 15:30 ` Thomas Renninger
2012-06-25 11:25 ` [PATCH] acpi, cpuidle: Register with cpuidle even if cpu is onlined after boot (beyond maxcpus) Srivatsa S. Bhat
2012-06-25 13:53 ` Thomas Renninger
2012-06-25 16:03 ` Srivatsa S. Bhat
2012-06-26 9:29 ` Thomas Renninger
2012-06-26 9:41 ` Daniel Lezcano
2012-06-26 9:58 ` Srivatsa S. Bhat
2012-06-26 10:42 ` Daniel Lezcano
2012-06-26 11:01 ` Thomas Renninger
2012-06-27 9:07 ` [PATCH] acpi: intel_idle : break dependency between modules Daniel Lezcano
2012-06-27 13:06 ` Thomas Renninger
[not found] ` <201206271506.29034.trenn-l3A5Bk7waGM@public.gmane.org>
2012-06-28 8:03 ` Daniel Lezcano
2012-06-28 8:46 ` [PATCH v2] " Daniel Lezcano
2012-06-28 11:24 ` Srivatsa S. Bhat
2012-06-28 11:27 ` Daniel Lezcano
2012-06-28 11:56 ` Srivatsa S. Bhat
2012-06-28 19:24 ` Rafael J. Wysocki
2012-06-29 8:39 ` Daniel Lezcano
2012-06-29 22:27 ` Rafael J. Wysocki
2012-07-01 19:36 ` Daniel Lezcano
2012-06-27 16:16 ` [PATCH] " Srivatsa S. Bhat
2012-06-28 7:34 ` [linux-pm] " Thomas Renninger
2012-06-28 11:23 ` Srivatsa S. Bhat
2012-06-26 11:07 ` [PATCH] acpi, cpuidle: Register with cpuidle even if cpu is onlined after boot (beyond maxcpus) Srivatsa S. Bhat
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