linux-kernel - Re: [PATCH v12 2/4] PM / Domains: add setter for dev.pm

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Date:	Mon, 8 Feb 2016 22:50:39 +0100
From:	"Rafael J. Wysocki" <rafael@...nel.org>
To:	Valdis.Kletnieks@...edu
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	martyn.welch@...labora.co.uk, Ulf Hansson <ulf.hansson@...aro.org>,
	Daniel Kurtz <djkurtz@...omium.org>,
	David Airlie <airlied@...ux.ie>,
	Tomas Winkler <tomas.winkler@...el.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org,
	Russell King <linux@....linux.org.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Kevin Hilman <khilman@...nel.org>,
	Tony Lindgren <tony@...mide.com>, Len Brown <lenb@...nel.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Pavel Machek <pavel@....cz>,
	linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v12 2/4] PM / Domains: add setter for dev.pm_domain

On Mon, Feb 8, 2016 at 10:44 PM,  <Valdis.Kletnieks@...edu> wrote:
> On Fri, 29 Jan 2016 22:35:18 +0100, "Rafael J. Wysocki" said:
>> > One more test unveils this one
>> >
>> > # modprobe -r sdhci-acpi
>> > [ 1289.909441] ------------[ cut here ]------------
>> > [ 1289.918205] WARNING: CPU: 1 PID: 4374 at
>> > /home/andy/prj/linux-otc/drivers/base/power/common.c:150
>> > dev_pm_domain_set+0x51/0x60()
>> > [ 1289.934681] PM domains can only be changed for unbound devices
>> > [ 1289.944843] Modules linked in: sdhci_acpi(-) sdhci mmc_core
>> > led_class [last unloaded: dw_dmac_core]
>> > [ 1289.958802] CPU: 1 PID: 4374 Comm: modprobe Not tainted 4.5.0-rc1+ #3
>> > [ 1289.969736]  ffffffff81c38330 ffff88007bb53d18 ffffffff8133162f
>> > ffff88007bb53d60
>> > [ 1289.981844]  ffff88007bb53d50 ffffffff8105cd12 ffff88017a007410
>> > 0000000000000000
>> > [ 1289.993996]  0000000000000001 0000000000000080 0000000000000000
>> > ffff88007bb53db0
>> > [ 1290.006123] Call Trace:
>> > [ 1290.012600]  [<ffffffff8133162f>] dump_stack+0x44/0x55
>> > [ 1290.022052]  [<ffffffff8105cd12>] warn_slowpath_common+0x82/0xc0
>> > [ 1290.032462]  [<ffffffff8105cd9c>] warn_slowpath_fmt+0x4c/0x50
>> > [ 1290.042589]  [<ffffffff814867c1>] dev_pm_domain_set+0x51/0x60
>
> My Dell Latitude laptopi on next-20160201 is throwing a similar error
> at shutdown, except the traceback continues:
>
> mei_me_remove+0xbd/0xc0
> pci_device_shutdown+0x32/0x50
> device_shutdown+0xe2/0x210
>
> (sorry, that's all I have, transcribing from one frame of video shot while
> the system was shutting down....)

This should be fixed in 4.5-rc3, so please retest.

Thanks,
Rafael