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Message-ID: <4A2C24E3.5090609@gmail.com>
Date: Sun, 07 Jun 2009 22:36:51 +0200
From: Jiri Slaby <jirislaby@gmail.com>
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To: "Rafael J. Wysocki" <rjw@sisk.pl>
CC: Alan Stern <stern@rowland.harvard.edu>,
       Andrew Morton <akpm@linux-foundation.org>,
       Linux kernel mailing list <linux-kernel@vger.kernel.org>,
       Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: usb fails to suspend [was: mmotm 2009-06-05-16-19]
References: <4A2AA469.5020709@gmail.com> <200906070028.32631.rjw@sisk.pl>
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On 06/07/2009 12:28 AM, Rafael J. Wysocki wrote:
> On Saturday 06 June 2009, Jiri Slaby wrote:
>> Hi,
>>
>> there is a suspend regression somewhere between mmotm 2009-05-17-12-15
>> and 2009-06-05-16-19:
>> hcd_pci_suspend_noirq(): pci_prepare_to_sleep+0x0/0x80 returns -19
>> pci_pm_suspend_noirq(): hcd_pci_suspend_noirq+0x0/0xb0 returns -19
>> pm_noirq_op(): pci_pm_suspend_noirq+0x0/0x180 returns -19
>> PM: Device 0000:00:1d.2 failed to suspend late: error -19
>>
>> $ lspci -xxvvs 0000:00:1d.2
>> 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
>> Controller #3 (rev 02) (prog-if 00 [UHCI])
>>         Subsystem: Intel Corporation 82801I (ICH9 Family) USB UHCI
>> Controller #3
>>         Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
>> ParErr- Stepping- SERR- FastB2B- DisINTx-
>>         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
>> <TAbort- <MAbort- >SERR- <PERR- INTx-
>>         Latency: 0
>>         Interrupt: pin D routed to IRQ 16
>>         Region 4: I/O ports at d000 [size=32]
>>         Capabilities: [50] Vendor Specific Information <?>
>>         Kernel driver in use: uhci_hcd
>> 00: 86 80 36 29 05 00 90 02 02 00 03 0c 00 00 00 00
>> 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>> 20: 01 d0 00 00 00 00 00 00 00 00 00 00 86 80 36 29
>> 30: 00 00 00 00 50 00 00 00 00 00 00 00 05 04 00 00
>>
>> Any ideas?
> 
> Not really.  Is it -mm-only or is the mainline affected too?

Yup, only an -mm thing. I reverted these two:
pci-pm-read-device-power-state-from-register-after-updating-it.patch
pci-pm-read-device-power-state-from-register-after-updating-it-update.patch
and it works now :).
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