On Mon, Nov 07, 2016 at 08:06:41AM -0500, Dennis New wrote: > So, I have a USB audio dongle (currently using ohci, but the same would > probably happen with ehci), and if I stupidly decide to unplug it while > I'm streaming audio (alsa) to it, mplayer (for example) first > freezes ... and if I quit mplayer immediately, things are fine ... but > if I try to continue playing (by unpausing/seeking), mplayer goes into > an infinite loop of errors trying to write to the (alsa?) audio device, > but more importantly, my kernel's (4.8.6) entire usb system seems to > break ... I can't even properly load my ehci_pci kernel drivers (it is > actually able to load them, but they can't be unloaded... they seem to > get immediately hung too... even though the dongle was using ohci at the > time) ... my alsa sound is also broken/hung so I no longer get > audio ... I'm forced to reboot (and even here it can't power off, I > have to force it with the PrtSc buttons). If you are able to get any kind of kernel log message when you remove the device, that would help out a lot in trying to track this issue down. Without that, it's going to be almost impossible, sorry... thanks, greg k-h -- 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