On Wed, 26 Feb 2014, Dennis New wrote: > > That's weird. Are you sure you were running the patched kernel? > > There very definitely should have been a bunch of debugging output, > > at the point where the headset was unplugged if not before. > > > > > Should I enable CONFIG_DEBUG_KERNEL as well? > > > > That's not necessary. > > I'm still not getting any more debugging output after it crashes. > > cat /proc/sys/kernel/printk = 8 4 1 7 > > I do however notice that I only get one of those timeout "still 3 active" > messages, whereas before I'd get 3 in a row, about 1 second apart. I think those messages are produced by the audio driver. Its debugging output is exasperatingly limited. Hmmm. I guess the best thing would be to collect a usbmon trace. That at least will give me some idea about what's going on just before and just after the problem occurs. There are instructions in Documentation/usb/usbmon.txt. 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
