Alan Stern <[EMAIL PROTECTED]> writes:
> On Thu, 25 Mar 2004, Sean Neakums wrote:
>
>> Alan Stern <[EMAIL PROTECTED]> writes:
>>
>> > I still don't know just what driver or program was causing the problem.
>> > You can help out by trying this one-line patch. It goes on top of the
>> > patch from yesterday. What it does is print a warning message together
>> > with a stack dump into the system log whenever a USB device is
>> > disconnected or a configuration is removed.
>> >
>> > Try running gphoto2 and then disconnecting (or turning off) your scanner,
>> > and send the dmesg output you get. With a little bit of luck, it will
>> > identify the culprit.
>>
>> I'm not getting any stack traces at all.
>
> None at all? Now _that's_ strange. Can you post the entire dmesg output
> for that testing session?
Here is the section in question.
Mar 25 15:13:09 revox kernel: uhci_hcd 0000:00:1d.0: wakeup_hc
Mar 25 15:13:09 revox kernel: uhci_hcd 0000:00:1d.0: port 1 portsc 0083
Mar 25 15:13:09 revox kernel: hub 1-0:1.0: port 1, status 101, change 1, 12 Mb/s
Mar 25 15:13:09 revox kernel: hub 1-0:1.0: debounce: port 1: delay 100ms stable 4
status 0x101
Mar 25 15:13:09 revox kernel: usb 1-1: new full speed USB device using address 2
Mar 25 15:13:09 revox kernel: usb 1-1: new device strings: Mfr=1, Product=2,
SerialNumber=0
Mar 25 15:13:09 revox kernel: drivers/usb/core/message.c: USB device number 2
default language ID 0x409
Mar 25 15:13:09 revox kernel: usb 1-1: Product: PowerShot A40
Mar 25 15:13:09 revox kernel: usb 1-1: Manufacturer: Canon Inc.
Mar 25 15:13:09 revox kernel: drivers/usb/core/usb.c: usb_hotplug
Mar 25 15:13:09 revox kernel: usb 1-1: registering 1-1:1.0 (config #1, interface 0)
Mar 25 15:13:09 revox kernel: drivers/usb/core/usb.c: usb_hotplug
Mar 25 15:13:14 revox kernel: usb 1-1: usb_disable_device nuking non-ep0 URBs
Mar 25 15:13:14 revox kernel: usb 1-1: unregistering interface 1-1:1.0
Mar 25 15:13:14 revox kernel: drivers/usb/core/usb.c: usb_hotplug
Mar 25 15:13:14 revox kernel: usb 1-1: registering 1-1:1.0 (config #1, interface 0)
Mar 25 15:13:14 revox kernel: drivers/usb/core/usb.c: usb_hotplug
Mar 25 15:13:18 revox kernel: uhci_hcd 0000:00:1d.0: port 1 portsc 008a
Mar 25 15:13:18 revox kernel: hub 1-0:1.0: port 1, status 100, change 3, 12 Mb/s
Mar 25 15:13:18 revox kernel: usb 1-1: USB disconnect, address 2
Mar 25 15:13:18 revox kernel: usb 1-1: usb_disable_device nuking all URBs
Mar 25 15:13:18 revox kernel: usb 1-1: unregistering interface 1-1:1.0
Mar 25 15:13:18 revox kernel: drivers/usb/core/usb.c: usb_hotplug
Mar 25 15:13:18 revox kernel: usb 1-1: unregistering device
Mar 25 15:13:18 revox kernel: drivers/usb/core/usb.c: usb_hotplug
Mar 25 15:13:18 revox kernel: uhci_hcd 0000:00:1d.0: port 1 portsc 0088
Mar 25 15:13:18 revox kernel: hub 1-0:1.0: port 1 enable change, status 100
Mar 25 15:13:19 revox kernel: uhci_hcd 0000:00:1d.0: suspend_hc
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