On Sat, 1 Oct 2011, Tim Blechmann wrote: > hi, > > i am not sure, whether it is really problem of the usb subsystem or with some > other layer, but i am regularly experiencing problems with usb devices. > searching on the lkml, i came across a very similar problem and the only common > point is that it also mentions the usb_hcd_irq interrupt handler [1]. It's easy enough to test. Unload the various drivers using that IRQ, one at a time, until the problem stops occurring. > we both get the message irq XX: nobody cared (see below). and for both of us the > problem started with the 3.0 kernel (i've also experienced it with 3.1-rc8). on > my machine it happens not very often ... sometimes it takes a few hours to > occur. however i am currently running on a kernel which is booted without > threadirq without any problems. > > i once tried to boot with the irqpoll option, but the machine didn't boot at > all. both issues occurred on different irqs, the only common interrupt handler > is usb_hcd_irq. > > how can i help to resolve this issue? If you remove ohci-hcd and uhci-hcd but the problem remains, then you'll know it's not related to USB. 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
