From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Kilian Singer <kilian.singer@quantumtechnology.info>
Cc: Lukas Wunner <lukas@wunner.de>,
Bjorn Helgaas <helgaas@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Peter Wu <peter@lekensteyn.nl>,
linux-pci <linux-pci@vger.kernel.org>,
Alex Deucher <alexander.deucher@amd.com>,
Dave Airlie <airlied@redhat.com>
Subject: Re: PCI: Revert "PCI: Add runtime PM support for PCIe ports"
Date: Wed, 4 Jan 2017 14:29:39 +0200 [thread overview]
Message-ID: <20170104122939.GQ3353@lahna.fi.intel.com> (raw)
In-Reply-To: <83901bcb-1315-fbca-e1e3-960bfefbd9c0@quantumtechnology.info>
On Wed, Jan 04, 2017 at 11:33:16AM +0100, Kilian Singer wrote:
> Dear all,
>
> the weird thing is also that when calling:
>
> echo 0 > /sys/bus/pci/devices/0000:01:00.0/d3cold_allowed
> or
> echo on > /sys/bus/pci/devices/0000:01:00.0/power/control
>
> on a command line then the command line crashes. The system stays responsive but still
> becomes unresponsive when I lock the screen.
Most probably because the device has already been runtime suspended.
Setting them from command line may be too late.
> Maybe a similar thing are happening in the kernel. Maybe one could use the above fact
> and a timeout to test for the problem and then take measures to deactivate the pm.
>
> I hope this gives you some more clues.
You could try to run 'lspci -vv' once the machine is unresponsive (if
you can do anything anymore). That should show whether the device and
the root port are still in D3.
next prev parent reply other threads:[~2017-01-04 12:29 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-27 23:57 PCI: Revert "PCI: Add runtime PM support for PCIe ports" Bjorn Helgaas
2016-12-28 9:17 ` Mika Westerberg
2016-12-28 11:29 ` Lukas Wunner
2016-12-28 16:18 ` Bjorn Helgaas
2016-12-29 9:58 ` Kilian Singer
2016-12-29 16:02 ` Kilian Singer
2016-12-29 16:20 ` Kilian Singer
2016-12-29 17:50 ` Lukas Wunner
2016-12-29 22:52 ` Kilian Singer
2016-12-29 23:02 ` Kilian Singer
2016-12-29 23:05 ` Kilian Singer
2016-12-29 23:48 ` Lukas Wunner
2016-12-29 23:20 ` Kilian Singer
2016-12-30 0:07 ` Lukas Wunner
2016-12-30 0:16 ` Kilian Singer
2016-12-30 0:24 ` Kilian Singer
2016-12-30 0:22 ` Rafael J. Wysocki
2016-12-30 0:39 ` Kilian Singer
2016-12-30 0:41 ` Rafael J. Wysocki
2016-12-30 0:45 ` Kilian Singer
2016-12-30 1:40 ` Rafael J. Wysocki
2016-12-30 1:50 ` Rafael J. Wysocki
2016-12-30 1:52 ` Rafael J. Wysocki
2016-12-30 13:37 ` Kilian Singer
2016-12-30 13:59 ` Kilian Singer
2016-12-30 14:44 ` Rafael J. Wysocki
2016-12-30 14:47 ` Rafael J. Wysocki
2017-01-02 12:22 ` Mika Westerberg
2017-01-03 17:12 ` Kilian Singer
2017-01-02 11:40 ` Lukas Wunner
2017-01-02 12:10 ` Mika Westerberg
2017-01-02 13:53 ` Mika Westerberg
2017-01-02 14:48 ` Mika Westerberg
2017-01-02 21:31 ` Rafael J. Wysocki
2017-01-03 9:51 ` Mika Westerberg
2017-01-03 15:15 ` Peter Wu
2017-01-03 16:11 ` Lukas Wunner
2017-01-03 16:31 ` Peter Wu
2017-01-03 16:44 ` Deucher, Alexander
2017-01-03 18:09 ` Lukas Wunner
2017-01-03 18:12 ` Bjorn Helgaas
2017-01-03 21:38 ` Rafael J. Wysocki
2017-01-03 21:52 ` Kilian Singer
2017-01-03 22:07 ` Rafael J. Wysocki
2017-01-03 22:25 ` Kilian Singer
2017-01-03 22:25 ` Bjorn Helgaas
2017-01-03 23:13 ` Rafael J. Wysocki
2017-01-04 0:05 ` Bjorn Helgaas
2017-01-04 1:09 ` Rafael J. Wysocki
2017-01-04 8:16 ` Lukas Wunner
2017-01-04 10:33 ` Kilian Singer
2017-01-04 12:29 ` Mika Westerberg [this message]
2017-01-04 15:50 ` Deucher, Alexander
2017-01-04 21:09 ` Peter Wu
2017-01-04 21:58 ` Rafael J. Wysocki
2017-01-04 23:21 ` David Airlie
2017-01-05 15:06 ` Lukas Wunner
2017-01-05 18:13 ` Peter Jones
2017-01-05 19:36 ` David Airlie
2017-01-09 15:11 ` Lyude Paul
2017-01-09 15:21 ` Hans de Goede
2017-01-09 18:48 ` Kilian Singer
2017-01-10 0:33 ` David Airlie
2017-01-10 9:17 ` Kilian Singer
2017-01-12 18:10 ` Lyude Paul
2017-01-24 4:59 ` Lukas Wunner
2017-01-24 19:09 ` Lyude Paul
2017-01-11 20:40 ` Lyude Paul
2017-01-12 1:13 ` Lyude Paul
2017-01-12 2:04 ` Lyude Paul
2017-01-12 2:12 ` Lukas Wunner
2017-01-17 15:55 ` Mika Westerberg
2017-01-17 18:06 ` Lyude Paul
2017-01-17 19:10 ` Bjorn Helgaas
2017-01-17 19:49 ` Lyude Paul
2017-01-07 11:45 ` Hans de Goede
2017-01-07 12:16 ` Lukas Wunner
2017-01-09 23:00 ` Peter Jones
2017-01-10 0:17 ` David Airlie
2017-01-10 1:24 ` Lukas Wunner
2017-01-10 2:15 ` David Airlie
2017-01-11 11:04 ` Hans de Goede
2017-01-11 13:24 ` Kilian Singer
2017-01-11 13:26 ` Hans de Goede
2017-01-11 16:24 ` Peter Jones
2017-01-11 19:20 ` Kilian Singer
2017-01-05 10:49 ` Mika Westerberg
2017-01-05 14:19 ` Rafael J. Wysocki
2017-01-05 14:20 ` Mika Westerberg
2017-01-05 14:23 ` Rafael J. Wysocki
2017-01-05 14:42 ` Lukas Wunner
2017-01-06 1:21 ` Rafael J. Wysocki
2017-01-07 6:50 ` Mika Westerberg
2017-01-07 11:35 ` Peter Wu
2017-01-07 12:19 ` Lukas Wunner
2017-01-07 12:36 ` Peter Wu
2017-01-08 14:05 ` Lukas Wunner
2017-01-04 21:55 ` Rafael J. Wysocki
2017-01-03 21:26 ` Rafael J. Wysocki
2017-01-03 17:37 ` Kilian Singer
2017-01-03 17:10 ` Kilian Singer
2017-01-03 16:59 ` Kilian Singer
2017-01-03 17:08 ` Kilian Singer
2016-12-30 0:19 ` Rafael J. Wysocki
2016-12-30 14:48 ` Rafael J. Wysocki
2017-01-17 14:56 ` Bjorn Helgaas
2017-01-17 15:49 ` Kilian Singer
2017-01-23 20:33 ` Bjorn Helgaas
2017-01-23 21:12 ` Mika Westerberg
2017-01-24 4:53 ` Lukas Wunner
2017-01-24 20:01 ` Bjorn Helgaas
2017-01-25 9:48 ` Mika Westerberg
2017-01-25 16:05 ` Kilian Singer
2017-01-25 16:31 ` Mika Westerberg
2017-01-25 17:58 ` Bjorn Helgaas
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