On Wed, 3 Feb 2010, Oliver Neukum wrote: > Hi, > > I've got lockdep complaining in the latest Linus tree when doing STD. > > Regards > Oliver This has nothing to do with USB especially. It's a bad interaction among the network layer, sysfs, and system power management. (The pm_mutex you see isn't the one that used to be defined by USB; it is defined in kernel/power/main.c.) You should bring this to the attention of Rafael Wysocki and Tejun Heo, and post it on linux-pm and netdev. Alan Stern -- 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