From: "Bjørn Mork" <bjorn@mork.no>
To: Huang Ying <ying.huang@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Zheng Yan <zheng.z.yan@intel.com>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-usb@vger.kernel.org,
Alan Stern <stern@rowland.harvard.edu>
Subject: Re: bisected regression, v3.5 -> next-20120724: PCI PM causes USB hotplug failure
Date: Wed, 25 Jul 2012 11:58:37 +0200 [thread overview]
Message-ID: <87k3xskvqq.fsf@nemi.mork.no> (raw)
In-Reply-To: <1343190864.10311.26.camel@yhuang-dev> (Huang Ying's message of "Wed, 25 Jul 2012 12:34:24 +0800")
[-- Attachment #1: Type: text/plain, Size: 5738 bytes --]
Huang Ying <ying.huang@intel.com> writes:
> On Wed, 2012-07-25 at 06:08 +0200, Bjørn Mork wrote:
>> Enabling autosuspend for USB causes hotplug failure in the current
>> linux-next. Newly plugged devices are not detected at all until the
>> port/controller is manually powered on by writing "on" to power/control.
>> Testing is pretty simple:
>>
>> 1) for f in /sys/bus/usb/devices/*/power/control; do echo auto > $f; done
>
> Have you done:
>
> for f in /sys/bus/pci/devices/*/power/confol; do echo auto > $f; done
>
> ?
>
> If not, the pci device will not be suspended at all.
Yes, sorry for missing that. I had it automatically enabled. Yes,
autosuspend for the PCI device and all child devices must be enabled for
the device to be suspended at all, of course.
>> 2) wait for the controllers to suspend
>> 3) plugin a new USB device
>
> After plugin the new USB device, is there anything in dmesg?
No. Absolutely nothing, so the USB devices is not enumerated. Another
indication of the same: Plugging a device like an Android phone, which
normally detects being connected to a host and presents a device type
menu to the user, results in the charging LED lighting up but no menu.
Trying to show the sequence of events:
1) the controllers are suspended:
Jul 25 11:27:12 nemi kernel: [ 38.962792] uhci_hcd 0000:00:1a.2: power state changed by ACPI to D2
Jul 25 11:27:12 nemi kernel: [ 39.006718] uhci_hcd 0000:00:1d.0: power state changed by ACPI to D2
Jul 25 11:27:15 nemi kernel: [ 41.808471] uhci_hcd 0000:00:1a.0: power state changed by ACPI to D2
Jul 25 11:27:15 nemi kernel: [ 41.824123] ehci_hcd 0000:00:1a.7: power state changed by ACPI to D2
Jul 25 11:27:15 nemi kernel: [ 41.824194] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D2
2) I connect a new USB device here
3) I read all power/files triggering this warning (as expected),
included for timing info - this happens a while after connecting the
USB device:
Jul 25 11:28:34 nemi kernel: [ 121.440558] WARNING! power/level is deprecated; use power/control instead
4) I wake up the usb2 bus I connected the device to, and it is
immediately found (no info about power state change here?):
nemi:/home/bjorn# echo on > /sys/bus/usb/devices/usb2/power/control
Jul 25 11:29:32 nemi kernel: [ 179.121418] ehci_hcd 0000:00:1d.7: setting latency timer to 64
Jul 25 11:29:32 nemi kernel: [ 179.364088] usb 2-1: new high-speed USB device number 3 using ehci_hcd
Jul 25 11:29:33 nemi kernel: [ 179.500042] usb 2-1: New USB device found, idVendor=0fce, idProduct=2138
Jul 25 11:29:33 nemi kernel: [ 179.500055] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul 25 11:29:33 nemi kernel: [ 179.500063] usb 2-1: Product: SEMC HSUSB Device
Jul 25 11:29:33 nemi kernel: [ 179.500069] usb 2-1: Manufacturer: SEMC
Jul 25 11:29:33 nemi kernel: [ 179.500075] usb 2-1: SerialNumber: 43423531314D42573144
Doing the same with commit 448bd857d reverted:
1) the controllers are suspended (to state D3? instead of D2?):
Jul 25 11:34:01 nemi kernel: [ 37.064955] uhci_hcd 0000:00:1a.2: power state changed by ACPI to D3
Jul 25 11:34:01 nemi kernel: [ 37.106586] uhci_hcd 0000:00:1d.0: power state changed by ACPI to D3
Jul 25 11:34:04 nemi kernel: [ 39.808329] uhci_hcd 0000:00:1a.0: power state changed by ACPI to D3
Jul 25 11:34:04 nemi kernel: [ 39.840054] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D3
Jul 25 11:34:04 nemi kernel: [ 39.840068] ehci_hcd 0000:00:1a.7: power state changed by ACPI to D3
2) plugging a USB device causes immediate wakeup (and logs changes state
to D0):
Jul 25 11:34:43 nemi kernel: [ 78.575357] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D0
Jul 25 11:34:43 nemi kernel: [ 78.588162] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D0
Jul 25 11:34:43 nemi kernel: [ 78.588292] ehci_hcd 0000:00:1d.7: setting latency timer to 64
Jul 25 11:34:43 nemi kernel: [ 78.832337] usb 2-1: new high-speed USB device number 3 using ehci_hcd
Jul 25 11:34:43 nemi kernel: [ 78.968286] usb 2-1: New USB device found, idVendor=0fce, idProduct=2138
Jul 25 11:34:43 nemi kernel: [ 78.968300] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul 25 11:34:43 nemi kernel: [ 78.968307] usb 2-1: Product: SEMC HSUSB Device
Jul 25 11:34:43 nemi kernel: [ 78.968314] usb 2-1: Manufacturer: SEMC
>>
>> I've bisected the regression down to this commit:
>>
>>
>> commit 448bd857d48e69b33ef323739dc6d8ca20d4cda7
>> Author: Huang Ying <ying.huang@intel.com>
>> Date: Sat Jun 23 10:23:51 2012 +0800
>>
>> PCI/PM: add PCIe runtime D3cold support
>>
>>
>> Looks like this somehow powers down my USB host controllers in such a
>> way that they are unable to detect connections to their ports. The
>> system is a pretty standard 4 year old intel based laptop. Full lspci
>> listing is attached.
>>
>> Please let me know if you need further information. And please fix this
>> before rc1. It effectively makes USB non-functional if autosuspend is
>> enabled.
>
> Can you provide the output of the following command lines?
>
> grep . /sys/bus/pci/devices/*/power/*
> grep . /sys/bus/usb/devices/*/power/*
> lsusb
>
> After the controllers suspended.
I've attached two copies of this output:
- powerstate-withbug.txt, from a plain next-20120724 kernel
- powerstate-reverted.txt, from a next-20120724 kernel with commit
448bd857d reverted
I cannot really see any interesting differences in these. But the D3/D2
difference in the kernel log might be of interest?
Bjørn
[-- Attachment #2: powerstate-withbug.txt --]
[-- Type: text/plain, Size: 30392 bytes --]
/sys/bus/usb/devices/1-0:1.0/power/async:enabled
/sys/bus/usb/devices/1-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/1-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/1-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/1-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/1-6:1.0/power/async:enabled
/sys/bus/usb/devices/1-6:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/1-6:1.0/power/runtime_enabled:disabled
/sys/bus/usb/devices/1-6:1.0/power/runtime_status:unsupported
/sys/bus/usb/devices/1-6:1.0/power/runtime_usage:0
/sys/bus/usb/devices/1-6:1.1/power/async:enabled
/sys/bus/usb/devices/1-6:1.1/power/runtime_active_kids:0
/sys/bus/usb/devices/1-6:1.1/power/runtime_enabled:disabled
/sys/bus/usb/devices/1-6:1.1/power/runtime_status:unsupported
/sys/bus/usb/devices/1-6:1.1/power/runtime_usage:0
/sys/bus/usb/devices/1-6/power/active_duration:37124
/sys/bus/usb/devices/1-6/power/async:enabled
/sys/bus/usb/devices/1-6/power/autosuspend:2
/sys/bus/usb/devices/1-6/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/1-6/power/connected_duration:119252
/sys/bus/usb/devices/1-6/power/control:auto
/sys/bus/usb/devices/1-6/power/level:auto
/sys/bus/usb/devices/1-6/power/persist:1
/sys/bus/usb/devices/1-6/power/runtime_active_kids:0
/sys/bus/usb/devices/1-6/power/runtime_active_time:36896
/sys/bus/usb/devices/1-6/power/runtime_enabled:enabled
/sys/bus/usb/devices/1-6/power/runtime_status:suspended
/sys/bus/usb/devices/1-6/power/runtime_suspended_time:82112
/sys/bus/usb/devices/1-6/power/runtime_usage:0
/sys/bus/usb/devices/2-0:1.0/power/async:enabled
/sys/bus/usb/devices/2-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/2-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/2-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/2-4:1.0/power/async:enabled
/sys/bus/usb/devices/2-4:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-4:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/2-4:1.0/power/runtime_usage:0
/sys/bus/usb/devices/2-4:1.19/power/async:enabled
/sys/bus/usb/devices/2-4:1.19/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4:1.19/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-4:1.19/power/runtime_status:suspended
/sys/bus/usb/devices/2-4:1.19/power/runtime_usage:0
/sys/bus/usb/devices/2-4:1.20/power/async:enabled
/sys/bus/usb/devices/2-4:1.20/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4:1.20/power/runtime_enabled:disabled
/sys/bus/usb/devices/2-4:1.20/power/runtime_status:unsupported
/sys/bus/usb/devices/2-4:1.20/power/runtime_usage:0
/sys/bus/usb/devices/2-4:1.2/power/async:enabled
/sys/bus/usb/devices/2-4:1.2/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4:1.2/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-4:1.2/power/runtime_status:suspended
/sys/bus/usb/devices/2-4:1.2/power/runtime_usage:0
/sys/bus/usb/devices/2-4:1.3/power/async:enabled
/sys/bus/usb/devices/2-4:1.3/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4:1.3/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-4:1.3/power/runtime_status:suspended
/sys/bus/usb/devices/2-4:1.3/power/runtime_usage:0
/sys/bus/usb/devices/2-4:1.8/power/async:enabled
/sys/bus/usb/devices/2-4:1.8/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4:1.8/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-4:1.8/power/runtime_status:suspended
/sys/bus/usb/devices/2-4:1.8/power/runtime_usage:0
/sys/bus/usb/devices/2-4/power/active_duration:36976
/sys/bus/usb/devices/2-4/power/async:enabled
/sys/bus/usb/devices/2-4/power/autosuspend:2
/sys/bus/usb/devices/2-4/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/2-4/power/connected_duration:119000
/sys/bus/usb/devices/2-4/power/control:auto
/sys/bus/usb/devices/2-4/power/level:auto
/sys/bus/usb/devices/2-4/power/persist:1
/sys/bus/usb/devices/2-4/power/runtime_active_kids:0
/sys/bus/usb/devices/2-4/power/runtime_active_time:36748
/sys/bus/usb/devices/2-4/power/runtime_enabled:enabled
/sys/bus/usb/devices/2-4/power/runtime_status:suspended
/sys/bus/usb/devices/2-4/power/runtime_suspended_time:82008
/sys/bus/usb/devices/2-4/power/runtime_usage:0
/sys/bus/usb/devices/2-4/power/wakeup:disabled
/sys/bus/usb/devices/3-0:1.0/power/async:enabled
/sys/bus/usb/devices/3-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/3-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/3-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/3-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/3-2:1.0/power/async:enabled
/sys/bus/usb/devices/3-2:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/3-2:1.0/power/runtime_enabled:disabled
/sys/bus/usb/devices/3-2:1.0/power/runtime_status:unsupported
/sys/bus/usb/devices/3-2:1.0/power/runtime_usage:0
/sys/bus/usb/devices/3-2/power/active_duration:36736
/sys/bus/usb/devices/3-2/power/async:enabled
/sys/bus/usb/devices/3-2/power/autosuspend:2
/sys/bus/usb/devices/3-2/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/3-2/power/connected_duration:118616
/sys/bus/usb/devices/3-2/power/control:auto
/sys/bus/usb/devices/3-2/power/level:auto
/sys/bus/usb/devices/3-2/power/persist:1
/sys/bus/usb/devices/3-2/power/runtime_active_kids:0
/sys/bus/usb/devices/3-2/power/runtime_active_time:36496
/sys/bus/usb/devices/3-2/power/runtime_enabled:enabled
/sys/bus/usb/devices/3-2/power/runtime_status:suspended
/sys/bus/usb/devices/3-2/power/runtime_suspended_time:81864
/sys/bus/usb/devices/3-2/power/runtime_usage:0
/sys/bus/usb/devices/3-2/power/wakeup:disabled
/sys/bus/usb/devices/4-0:1.0/power/async:enabled
/sys/bus/usb/devices/4-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/4-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/4-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/4-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/4-2:1.0/power/async:enabled
/sys/bus/usb/devices/4-2:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/4-2:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/4-2:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/4-2:1.0/power/runtime_usage:0
/sys/bus/usb/devices/4-2:1.1/power/async:enabled
/sys/bus/usb/devices/4-2:1.1/power/runtime_active_kids:0
/sys/bus/usb/devices/4-2:1.1/power/runtime_enabled:enabled
/sys/bus/usb/devices/4-2:1.1/power/runtime_status:suspended
/sys/bus/usb/devices/4-2:1.1/power/runtime_usage:0
/sys/bus/usb/devices/4-2:1.2/power/async:enabled
/sys/bus/usb/devices/4-2:1.2/power/runtime_active_kids:0
/sys/bus/usb/devices/4-2:1.2/power/runtime_enabled:disabled
/sys/bus/usb/devices/4-2:1.2/power/runtime_status:unsupported
/sys/bus/usb/devices/4-2:1.2/power/runtime_usage:0
/sys/bus/usb/devices/4-2:1.3/power/async:enabled
/sys/bus/usb/devices/4-2:1.3/power/runtime_active_kids:0
/sys/bus/usb/devices/4-2:1.3/power/runtime_enabled:disabled
/sys/bus/usb/devices/4-2:1.3/power/runtime_status:unsupported
/sys/bus/usb/devices/4-2:1.3/power/runtime_usage:0
/sys/bus/usb/devices/4-2/power/active_duration:26552
/sys/bus/usb/devices/4-2/power/async:enabled
/sys/bus/usb/devices/4-2/power/autosuspend:2
/sys/bus/usb/devices/4-2/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/4-2/power/connected_duration:118200
/sys/bus/usb/devices/4-2/power/control:auto
/sys/bus/usb/devices/4-2/power/level:auto
/sys/bus/usb/devices/4-2/power/persist:1
/sys/bus/usb/devices/4-2/power/runtime_active_kids:0
/sys/bus/usb/devices/4-2/power/runtime_active_time:26376
/sys/bus/usb/devices/4-2/power/runtime_enabled:enabled
/sys/bus/usb/devices/4-2/power/runtime_status:suspended
/sys/bus/usb/devices/4-2/power/runtime_suspended_time:91568
/sys/bus/usb/devices/4-2/power/runtime_usage:0
/sys/bus/usb/devices/4-2/power/wakeup:disabled
/sys/bus/usb/devices/5-0:1.0/power/async:enabled
/sys/bus/usb/devices/5-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/5-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/5-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/5-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/6-0:1.0/power/async:enabled
/sys/bus/usb/devices/6-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/6-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/6-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/6-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/7-0:1.0/power/async:enabled
/sys/bus/usb/devices/7-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/7-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/7-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/7-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/8-0:1.0/power/async:enabled
/sys/bus/usb/devices/8-0:1.0/power/runtime_active_kids:0
/sys/bus/usb/devices/8-0:1.0/power/runtime_enabled:enabled
/sys/bus/usb/devices/8-0:1.0/power/runtime_status:suspended
/sys/bus/usb/devices/8-0:1.0/power/runtime_usage:0
/sys/bus/usb/devices/usb1/power/active_duration:40060
/sys/bus/usb/devices/usb1/power/async:enabled
/sys/bus/usb/devices/usb1/power/autosuspend:2
/sys/bus/usb/devices/usb1/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/usb1/power/connected_duration:119692
/sys/bus/usb/devices/usb1/power/control:auto
/sys/bus/usb/devices/usb1/power/level:auto
/sys/bus/usb/devices/usb1/power/runtime_active_kids:0
/sys/bus/usb/devices/usb1/power/runtime_active_time:40044
/sys/bus/usb/devices/usb1/power/runtime_enabled:enabled
/sys/bus/usb/devices/usb1/power/runtime_status:suspended
/sys/bus/usb/devices/usb1/power/runtime_suspended_time:79632
/sys/bus/usb/devices/usb1/power/runtime_usage:0
/sys/bus/usb/devices/usb1/power/wakeup:disabled
/sys/bus/usb/devices/usb2/power/active_duration:40044
/sys/bus/usb/devices/usb2/power/async:enabled
/sys/bus/usb/devices/usb2/power/autosuspend:2
/sys/bus/usb/devices/usb2/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/usb2/power/connected_duration:119680
/sys/bus/usb/devices/usb2/power/control:auto
/sys/bus/usb/devices/usb2/power/level:auto
/sys/bus/usb/devices/usb2/power/runtime_active_kids:0
/sys/bus/usb/devices/usb2/power/runtime_active_time:40028
/sys/bus/usb/devices/usb2/power/runtime_enabled:enabled
/sys/bus/usb/devices/usb2/power/runtime_status:suspended
/sys/bus/usb/devices/usb2/power/runtime_suspended_time:79636
/sys/bus/usb/devices/usb2/power/runtime_usage:0
/sys/bus/usb/devices/usb2/power/wakeup:disabled
/sys/bus/usb/devices/usb3/power/active_duration:40024
/sys/bus/usb/devices/usb3/power/async:enabled
/sys/bus/usb/devices/usb3/power/autosuspend:2
/sys/bus/usb/devices/usb3/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/usb3/power/connected_duration:119660
/sys/bus/usb/devices/usb3/power/control:auto
/sys/bus/usb/devices/usb3/power/level:auto
/sys/bus/usb/devices/usb3/power/runtime_active_kids:0
/sys/bus/usb/devices/usb3/power/runtime_active_time:40024
/sys/bus/usb/devices/usb3/power/runtime_enabled:enabled
/sys/bus/usb/devices/usb3/power/runtime_status:suspended
/sys/bus/usb/devices/usb3/power/runtime_suspended_time:79636
/sys/bus/usb/devices/usb3/power/runtime_usage:0
/sys/bus/usb/devices/usb3/power/wakeup:disabled
/sys/bus/usb/devices/usb4/power/active_duration:31056
/sys/bus/usb/devices/usb4/power/async:enabled
/sys/bus/usb/devices/usb4/power/autosuspend:2
/sys/bus/usb/devices/usb4/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/usb4/power/connected_duration:119656
/sys/bus/usb/devices/usb4/power/control:auto
/sys/bus/usb/devices/usb4/power/level:auto
/sys/bus/usb/devices/usb4/power/runtime_active_kids:0
/sys/bus/usb/devices/usb4/power/runtime_active_time:31056
/sys/bus/usb/devices/usb4/power/runtime_enabled:enabled
/sys/bus/usb/devices/usb4/power/runtime_status:suspended
/sys/bus/usb/devices/usb4/power/runtime_suspended_time:88600
/sys/bus/usb/devices/usb4/power/runtime_usage:0
/sys/bus/usb/devices/usb4/power/wakeup:disabled
/sys/bus/usb/devices/usb5/power/active_duration:4020
/sys/bus/usb/devices/usb5/power/async:enabled
/sys/bus/usb/devices/usb5/power/autosuspend:2
/sys/bus/usb/devices/usb5/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/usb5/power/connected_duration:119656
/sys/bus/usb/devices/usb5/power/control:auto
/sys/bus/usb/devices/usb5/power/level:auto
/sys/bus/usb/devices/usb5/power/runtime_active_kids:0
/sys/bus/usb/devices/usb5/power/runtime_active_time:4020
/sys/bus/usb/devices/usb5/power/runtime_enabled:enabled
/sys/bus/usb/devices/usb5/power/runtime_status:suspended
/sys/bus/usb/devices/usb5/power/runtime_suspended_time:115636
/sys/bus/usb/devices/usb5/power/runtime_usage:0
/sys/bus/usb/devices/usb5/power/wakeup:disabled
/sys/bus/usb/devices/usb6/power/active_duration:2104
/sys/bus/usb/devices/usb6/power/async:enabled
/sys/bus/usb/devices/usb6/power/autosuspend:2
/sys/bus/usb/devices/usb6/power/autosuspend_delay_ms:2000
/sys/bus/usb/devices/usb6/power/connected_duration:119652
/sys/bus/usb/devices/usb6/power/control:auto
/sys/bus/usb/devices/usb6/power/level:auto
/sys/bus/usb/devices/usb6/power/runtime_active_kids:0
/sys/bus/usb/devices/usb6/power/runtime_active_time:2104
/sys/bus/usb/devices/usb6/power/runtime_enabled:enabled
/sys/bus/usb/devices/usb6/power/runtime_status:suspended
/sys/bus/usb/devices/usb6/power/runtime_suspended_time:117548
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/sys/bus/usb/devices/usb7/power/autosuspend_delay_ms:2000
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/sys/bus/usb/devices/usb8/power/connected_duration:119644
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/sys/bus/pci/devices/0000:00:1a.0/power/runtime_active_time:40024
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/sys/bus/pci/devices/0000:00:1a.1/power/runtime_active_time:37172
/sys/bus/pci/devices/0000:00:1a.1/power/runtime_enabled:enabled
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/sys/bus/pci/devices/0000:00:1a.1/power/runtime_suspended_time:82488
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/sys/bus/pci/devices/0000:00:1a.1/power/wakeup_last_time_ms:1789
/sys/bus/pci/devices/0000:00:1a.1/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1a.1/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1a.2/power/async:enabled
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/sys/bus/pci/devices/0000:00:1a.2/power/runtime_active_time:37172
/sys/bus/pci/devices/0000:00:1a.2/power/runtime_enabled:enabled
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/sys/bus/pci/devices/0000:00:1a.2/power/runtime_suspended_time:82488
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/sys/bus/pci/devices/0000:00:1a.2/power/wakeup_active_count:0
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/sys/bus/pci/devices/0000:00:1a.2/power/wakeup_expire_count:0
/sys/bus/pci/devices/0000:00:1a.2/power/wakeup_last_time_ms:1794
/sys/bus/pci/devices/0000:00:1a.2/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1a.2/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1a.7/power/async:enabled
/sys/bus/pci/devices/0000:00:1a.7/power/control:auto
/sys/bus/pci/devices/0000:00:1a.7/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1a.7/power/runtime_active_time:40076
/sys/bus/pci/devices/0000:00:1a.7/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1a.7/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1a.7/power/runtime_suspended_time:79624
/sys/bus/pci/devices/0000:00:1a.7/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup:enabled
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_abort_count:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_active:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_active_count:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_count:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_expire_count:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_last_time_ms:1765
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1a.7/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1b.0/power/async:enabled
/sys/bus/pci/devices/0000:00:1b.0/power/control:auto
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_active_time:101776
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_usage:1
/sys/bus/pci/devices/0000:00:1b.0/power/wakeup:disabled
/sys/bus/pci/devices/0000:00:1c.0/power/async:enabled
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/sys/bus/pci/devices/0000:00:1c.0/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1c.0/power/runtime_active_time:38056
/sys/bus/pci/devices/0000:00:1c.0/power/runtime_enabled:enabled
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/sys/bus/pci/devices/0000:00:1c.0/power/runtime_suspended_time:82464
/sys/bus/pci/devices/0000:00:1c.0/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1c.0/power/wakeup:disabled
/sys/bus/pci/devices/0000:00:1c.1/power/async:enabled
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/sys/bus/pci/devices/0000:00:1c.1/power/runtime_active_kids:1
/sys/bus/pci/devices/0000:00:1c.1/power/runtime_active_time:120520
/sys/bus/pci/devices/0000:00:1c.1/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1c.1/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1c.1/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1c.1/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1c.1/power/wakeup:disabled
/sys/bus/pci/devices/0000:00:1d.0/power/async:enabled
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/sys/bus/pci/devices/0000:00:1d.0/power/runtime_active_time:37212
/sys/bus/pci/devices/0000:00:1d.0/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1d.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1d.0/power/runtime_suspended_time:82444
/sys/bus/pci/devices/0000:00:1d.0/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1d.0/power/wakeup:enabled
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/sys/bus/pci/devices/0000:00:1d.0/power/wakeup_active_count:0
/sys/bus/pci/devices/0000:00:1d.0/power/wakeup_count:0
/sys/bus/pci/devices/0000:00:1d.0/power/wakeup_expire_count:0
/sys/bus/pci/devices/0000:00:1d.0/power/wakeup_last_time_ms:1797
/sys/bus/pci/devices/0000:00:1d.0/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1d.0/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1d.1/power/async:enabled
/sys/bus/pci/devices/0000:00:1d.1/power/control:auto
/sys/bus/pci/devices/0000:00:1d.1/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1d.1/power/runtime_active_time:37220
/sys/bus/pci/devices/0000:00:1d.1/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1d.1/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1d.1/power/runtime_suspended_time:82436
/sys/bus/pci/devices/0000:00:1d.1/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup:enabled
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_abort_count:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_active:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_active_count:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_count:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_expire_count:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_last_time_ms:1802
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1d.1/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1d.2/power/async:enabled
/sys/bus/pci/devices/0000:00:1d.2/power/control:auto
/sys/bus/pci/devices/0000:00:1d.2/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1d.2/power/runtime_active_time:37220
/sys/bus/pci/devices/0000:00:1d.2/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1d.2/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1d.2/power/runtime_suspended_time:82432
/sys/bus/pci/devices/0000:00:1d.2/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup:enabled
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_abort_count:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_active:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_active_count:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_count:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_expire_count:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_last_time_ms:1805
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1d.2/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1d.7/power/async:enabled
/sys/bus/pci/devices/0000:00:1d.7/power/control:auto
/sys/bus/pci/devices/0000:00:1d.7/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1d.7/power/runtime_active_time:40060
/sys/bus/pci/devices/0000:00:1d.7/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1d.7/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1d.7/power/runtime_suspended_time:79628
/sys/bus/pci/devices/0000:00:1d.7/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup:enabled
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_abort_count:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_active:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_active_count:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_count:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_expire_count:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_last_time_ms:1781
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_max_time_ms:0
/sys/bus/pci/devices/0000:00:1d.7/power/wakeup_total_time_ms:0
/sys/bus/pci/devices/0000:00:1e.0/power/async:enabled
/sys/bus/pci/devices/0000:00:1e.0/power/control:auto
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_active_time:0
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_enabled:disabled
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_status:unsupported
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1e.0/power/wakeup:disabled
/sys/bus/pci/devices/0000:00:1f.0/power/async:enabled
/sys/bus/pci/devices/0000:00:1f.0/power/control:auto
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_active_time:0
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_enabled:disabled
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_status:unsupported
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_usage:0
/sys/bus/pci/devices/0000:00:1f.2/power/async:enabled
/sys/bus/pci/devices/0000:00:1f.2/power/control:auto
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_active_kids:4
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_active_time:119672
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_usage:1
/sys/bus/pci/devices/0000:00:1f.2/power/wakeup:disabled
/sys/bus/pci/devices/0000:00:1f.3/power/async:enabled
/sys/bus/pci/devices/0000:00:1f.3/power/control:auto
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_active_time:105156
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_usage:1
/sys/bus/pci/devices/0000:03:00.0/power/async:enabled
/sys/bus/pci/devices/0000:03:00.0/power/control:auto
/sys/bus/pci/devices/0000:03:00.0/power/runtime_active_kids:0
/sys/bus/pci/devices/0000:03:00.0/power/runtime_active_time:104580
/sys/bus/pci/devices/0000:03:00.0/power/runtime_enabled:enabled
/sys/bus/pci/devices/0000:03:00.0/power/runtime_status:active
/sys/bus/pci/devices/0000:03:00.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:03:00.0/power/runtime_usage:1
/sys/bus/pci/devices/0000:03:00.0/power/wakeup:disabled
Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera
Bus 002 Device 002: ID 1199:68a2 Sierra Wireless, Inc.
Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810
Bus 004 Device 002: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
[-- Attachment #3: powerstate-reverted.txt --]
[-- Type: text/plain, Size: 31221 bytes --]
/sys/bus/usb/devices/1-0:1.0/power/async:enabled
/sys/bus/usb/devices/1-0:1.0/power/runtime_active_kids:0
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/sys/bus/pci/devices/0000:03:00.0/power/runtime_usage:1
/sys/bus/pci/devices/0000:03:00.0/power/wakeup:disabled
Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera
Bus 002 Device 002: ID 1199:68a2 Sierra Wireless, Inc.
Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810
Bus 004 Device 002: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera
Bus 002 Device 003: ID 0fce:2138 Sony Ericsson Mobile Communications AB Xperia X10 mini pro (Debug)
Bus 002 Device 002: ID 1199:68a2 Sierra Wireless, Inc.
Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810
Bus 004 Device 002: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
next prev parent reply other threads:[~2012-07-25 10:00 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.44L0.1207241312050.1164-100000@iolanthe.rowland.org>
[not found] ` <87r4s0opck.fsf@nemi.mork.no>
2012-07-25 4:08 ` bisected regression, v3.5 -> next-20120724: PCI PM causes USB hotplug failure Bjørn Mork
2012-07-25 4:34 ` Huang Ying
2012-07-25 9:58 ` Bjørn Mork [this message]
2012-07-25 13:30 ` huang ying
2012-07-25 13:58 ` Bjørn Mork
2012-07-25 18:56 ` Rafael J. Wysocki
2012-07-25 20:02 ` Rafael J. Wysocki
2012-07-25 22:36 ` Bjørn Mork
2012-07-26 2:38 ` Huang Ying
2012-07-26 2:38 ` Huang Ying
2012-07-26 8:54 ` Huang Ying
2012-07-26 10:35 ` Bjørn Mork
2012-07-26 11:02 ` Bjørn Mork
2012-07-26 12:04 ` Bjørn Mork
2012-07-26 15:03 ` Alan Stern
2012-07-26 16:24 ` Bjørn Mork
2012-07-27 5:35 ` Huang Ying
2012-07-27 9:11 ` Bjørn Mork
2012-07-30 3:15 ` Huang Ying
2012-07-30 8:08 ` Bjørn Mork
2012-07-30 13:31 ` huang ying
2012-07-30 16:57 ` Bjørn Mork
2012-07-31 0:22 ` Huang Ying
2012-07-30 14:19 ` Alan Stern
2012-07-31 0:24 ` Huang Ying
2012-07-31 3:18 ` Huang Ying
2012-07-31 17:07 ` Alan Stern
2012-07-27 15:03 ` Alan Stern
2012-07-27 19:11 ` Rafael J. Wysocki
2012-07-27 19:39 ` Alan Stern
2012-07-27 19:54 ` Rafael J. Wysocki
2012-07-28 16:12 ` Alan Stern
2012-07-28 20:26 ` Rafael J. Wysocki
2012-07-28 21:12 ` Alan Stern
2012-07-29 13:55 ` Rafael J. Wysocki
2012-07-29 14:55 ` Alan Stern
2012-07-29 19:18 ` Rafael J. Wysocki
2012-07-31 20:31 ` Do we need asynchronous pm_runtime_get()? (was: Re: bisected regression ...) Rafael J. Wysocki
2012-07-31 21:05 ` Alan Stern
2012-07-31 21:34 ` Rafael J. Wysocki
2012-07-31 21:49 ` Rafael J. Wysocki
2012-08-01 14:36 ` Alan Stern
2012-08-01 21:24 ` Rafael J. Wysocki
2012-08-02 20:16 ` Alan Stern
2012-08-02 21:26 ` Rafael J. Wysocki
2012-08-03 2:20 ` Alan Stern
2012-08-03 3:37 ` Ming Lei
2012-08-03 14:28 ` Alan Stern
2012-08-04 19:47 ` Rafael J. Wysocki
2012-08-04 20:25 ` Alan Stern
2012-08-04 20:48 ` Rafael J. Wysocki
2012-08-04 20:48 ` Alan Stern
2012-08-04 21:15 ` Rafael J. Wysocki
2012-08-04 22:13 ` Alan Stern
2012-08-05 15:26 ` Rafael J. Wysocki
2012-08-06 13:30 ` Ming Lei
2012-08-06 14:47 ` Alan Stern
2012-08-07 1:35 ` Ming Lei
2012-08-07 11:23 ` Rafael J. Wysocki
2012-08-07 15:14 ` Ming Lei
2012-08-07 15:42 ` Alan Stern
2012-08-07 16:30 ` Ming Lei
2012-08-07 20:57 ` Rafael J. Wysocki
2012-08-07 20:45 ` Rafael J. Wysocki
2012-08-08 2:02 ` Ming Lei
2012-08-08 18:42 ` Alan Stern
2012-08-08 20:16 ` Rafael J. Wysocki
2012-08-09 5:55 ` Ming Lei
2012-08-09 10:46 ` Rafael J. Wysocki
2012-08-09 10:55 ` Ming Lei
2012-08-09 19:41 ` Rafael J. Wysocki
2012-08-10 3:19 ` Ming Lei
2012-08-10 20:29 ` Rafael J. Wysocki
2012-08-08 22:27 ` Rafael J. Wysocki
2012-08-06 15:48 ` Alan Stern
2012-08-06 20:30 ` Rafael J. Wysocki
2012-08-07 12:28 ` Rafael J. Wysocki
2012-08-07 17:15 ` Alan Stern
2012-08-07 21:31 ` Rafael J. Wysocki
2012-08-03 14:05 ` Alan Stern
2012-08-04 20:08 ` Rafael J. Wysocki
2012-08-04 20:42 ` Alan Stern
2012-08-04 20:59 ` Rafael J. Wysocki
2012-08-04 19:35 ` Rafael J. Wysocki
2012-07-29 20:12 ` bisected regression, v3.5 -> next-20120724: PCI PM causes USB hotplug failure Jassi Brar
2012-07-29 21:44 ` Alan Stern
2012-07-25 19:51 ` [PATCH] PCI / PM: Fix messages printed by acpi_pci_set_power_state() Rafael J. Wysocki
2012-07-25 20:02 ` Alan Stern
2012-07-25 20:48 ` [PATCH][update] " Rafael J. Wysocki
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