From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Lan Tianyu <tianyu.lan@intel.com>
Cc: lenb@kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 0/3] ACPI/Power: Fix infinite loop of runtime resume and suspend caused by turning on power resource
Date: Tue, 15 Oct 2013 23:05:04 +0200 [thread overview]
Message-ID: <1957403.qYMK7iKccF@vostro.rjw.lan> (raw)
In-Reply-To: <1381849493-7977-1-git-send-email-tianyu.lan@intel.com>
On Tuesday, October 15, 2013 11:04:50 PM Lan Tianyu wrote:
> Currently, clearing usb port(empty port) PM Qos NO_POWER_OFF flag twice will lead
> the usb port to fall into the infinite loop of runtime pm resume and
> suspend. This is caused by pm_request_resume() in the acpi_power_resume_dependent().
> Detail is in the following link.
> http://marc.info/?l=linux-acpi&m=138182749202885&w=2
As far as I can say, the bug is in USB, so I'm not quite sure why you want
to address it in the ACPI core?
Rafael
prev parent reply other threads:[~2013-10-15 20:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 15:04 Lan Tianyu
2013-10-15 15:04 ` [RFC PATCH 1/3] ACPI/Power: Add state_lock to mutex power resource's _ON, _OFF and _STA Lan Tianyu
2013-10-15 15:04 ` [RFC PATCH 2/3] ACPI/POWER: Rework acpi_power_get_state() Lan Tianyu
2013-10-15 15:04 ` [RFC PATCH 3/3] ACPI/POWER: Call acpi_power_resume_dependent() directly in the acpi_power_on_unlocked() Lan Tianyu
2013-10-15 15:12 ` Lan Tianyu
2013-10-15 21:05 ` Rafael J. Wysocki [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1957403.qYMK7iKccF@vostro.rjw.lan \
--to=rjw@rjwysocki.net \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tianyu.lan@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®