On 09/01/2013 06:04 AM, Greg KH wrote:
On Sun, Sep 01, 2013 at 02:56:42AM +0200, Martin MOKREJŠ wrote:
Martin MOKREJŠ wrote:
Hi Xenia,
I tried these 3 patches and ... I will rather leave it up to you to decide
if everything went right. Attached is a diff of dmesg from unpatched and patched
3.10.9 kernel. USB3 devices were connected before cold bootup, sadly in latter test
the ordering changed a bit so that added to the length of the diff. Can't say
what those Prolific-related messages mean. Just in case you need more info
I attach "lsub -v" as well.
One more addition. When I disconnected the external hard drives from the external
HUB I got:
[ 1677.615301] usb 4-1.1: USB disconnect, device number 4
[ 1677.619345] usb 4-1.1: Set SEL for device-initiated U1 failed.
[ 1677.619369] usb 4-1.1: Set SEL for device-initiated U2 failed.
I'm seeing these on the 3.10 kernels, and it's really starting to annoy
me...
greg k-h
I think this message is generated because usb_disable_device() calls
usb_enable_lpm() (through a call to usb_disable_lpm()) that submits a
USB_REQ_SET_SEL request to the device which fails since the device state
has been already set (before the call to usb_disable_device()) to the
NOTATTACHED state. So maybe we should not call usb_disable_lpm() if the
device is not attached.
ksenia
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