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Date:	Sat, 19 May 2007 11:01:14 -0400 (EDT)
From:	Alan Stern <>
To:	Andrey Borzenkov <>
Subject: Re: [linux-usb-devel] 2.6.22-rc2: regression: STD fails with
 pci_device_suspend(): usb_hcd_pci_suspend+0x0/0x160 [usbcore]() returns -16

On Sat, 19 May 2007, Andrey Borzenkov wrote:

> This works just fine up to and including 2.6.21.

> unfortunatelt dmesg got truncated; if required I can rebuild with larger 
> buffer; the part around suspend is
> swsusp: Marking nosave pages: 000000000009f000 - 0000000000100000
> swsusp: Basic memory bitmaps created
> Stopping tasks ... done.
> Shrinking memory... done (14553 pages freed)
> Freed 58212 kbytes in 0.30 seconds (194.04 MB/s)
> Suspending console(s)
> sd 0:0:0:0: [sda] Synchronizing SCSI cache
> pnp: Device 00:09 disabled.
> ACPI: PCI interrupt for device 0000:00:0a.0 disabled
> Trying to free already-free IRQ 11
> ACPI: PCI interrupt for device 0000:00:06.0 disabled
> ACPI: Unable to derive IRQ for device 0000:00:04.0
> pci_device_suspend(): usb_hcd_pci_suspend+0x0/0x160 [usbcore]() returns -16
> suspend_device(): pci_device_suspend+0x0/0x70() returns -16
> Could not suspend device 0000:00:02.0: error -16

Please turn on CONFIG_USB_DEBUG and post the resulting dmesg log.

Alan Stern

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