On Tue, 10 Feb 2015, Enrico Mioso wrote: > Hello guys. > the problem is still reproducible with final 3.19 kernel - I can confirm it. > Re-sending the last trace here - don't know if it's available in cxg.de. Please stop posting these process traces. They don't help. Instead, post a usbmon trace showing what happens around the time when the problem occurs. If the trace file is quite large (which is likely, because usbmon can generate a lot of data in a short time), you can cut out everything up to the last few hundreds of KB before the problem starts. > For those who might not have read the thread - the problem is: after some > intensive IO to an USB (usb-storage) disk, for a more or less long time, > depending on the quantity of IO you do, there start to be situations where some > processes get stuck doing IO, in any case. Not IO to the USB disk, but IO also > to other devices, like the one where the root partition resides, in my case a > flash drive. I am using an EEE PC 701. That sounds like the problem may lie somewhere other than in the USB stack. But there's no way to tell without seeing a usbmon trace. 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