* Peter P. <peterparker@xxxxxxxxxxxx> [2015-07-09 11:35]: > Hi list, > > When I unplug my USB Audio interface while jackd is running on that very > card, jackd's CPU useage peaks and influences the whole operating system > (RT-kernel, jackd's priority is -11) becomes very unresponsive. > > I know that I should not unplug it while jack is running, but sometimes > I forget that jack runs and this almost takes my computer down. I did some more testing, and the 100% CPU usage does not happen always, but in about 50% of the cases. There are no messages from jackd itself, but dmesg tells [unplugging the USB audio interface here] [11277.146573] retire_capture_urb: 83 callbacks suppressed [11277.313666] usb 2-1.2: USB disconnect, device number 6 [11277.314506] cannot submit urb (err = -19) [11277.315458] cannot submit urb (err = -19) [11277.316487] cannot submit urb (err = -19) [11277.317489] cannot submit urb (err = -19) [11277.318456] cannot submit urb (err = -19) [11277.319459] cannot submit urb (err = -19) [11277.320527] cannot submit urb (err = -19) _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
