On Tue, 30 Nov 2010, Stefan Seyfried wrote:
since a few days (probably since the update to 2.6.37-rc), i'm getting those all the time when using my Bluetooth mouse:
[280835.709269] btusb_bulk_complete: hci0 urb ffff880078654f00 failed to resubmit (1)
Has this something to do with runtime power management? It seems like it's always 3 messages about 2 or 3 seconds after the last mouse movement.
And indeed, "echo on > /sys/bus/usb/drivers/btusb/4-2\:1.0/power/control" makes it go away. However, is this a good idea? And is "auto" for that feature a good idea if it leads to constant syslog spamming? Or are those "failed to resubmit" messages mere debug output and thus should not be logged at all unless some debugging option is chosen?
Runtime power management has been turned on by default in 2.6.37-rc (it has been off by default in previous kernels) for btusb driver. So that's why you have not seen it with older kernels, and why turning autosuspend off fixes it again. Looks like the completion handler is run only after the device has been suspended already. Adding Oliver, who originally wrote the autosuspend support for this driver. Oliver, any immediate ideas? -- Jiri Kosina SUSE Labs, Novell Inc. -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org