Hi Alan, > However, note that CONFIG_PM_RUNTIME doesn't exist any more in 4.2; it > is now covered by CONFIG_PM. That explains why the setting was disabled in the first place. I had taken a config from 4.2 and ran "make oldconfig" on it with the 3.17 kernel. Actually, the configurations with CONFIG_PM_RUNTIME disabled give me warnings about some cross-dependencies that are not satisfied. With "make menuconfig", I haven't been able to switch off the setting, because CONFIG_PM_SLEEP and something else forces it on, and I have no idea where in the menus I would find those. And if I edit .config directly, I don't know what other cross-dependencies I'll violate that way. I only had a few minutes to spare today to select a config and kick off the compilation. Now I have a 3.17 kernel with some more debug output, but which freezes on 'bind' instead of 'unbind'. *sigh* I'm afraid I've been doing too much just-before-bedtime debugging lately and need to take a step back. I'll set aside a few hours on Thursday to prepare a proper config with a behavior that is comparable to the ones I've observed earlier. Then I will send decent debug output over the week-end. It's not like this problem will run away if I don't track it fast enough :-) cheers and thanks, Roland -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html