[LAU] Jack hanging when a usb soundcard is disconnected

[Jeremy Jongepier]

On 10/18/2015 03:16 AM, Ivica Bukvic wrote:
> Back on topic, which is why is jack hanging so badly that you cannot even
> kill the process and what could be the solution. In other words,
> alternatives to an USB audio interface are not an option,  and under these
> circumstances is this a case of poor packaging on Ubuntu's part, flaw in
> jack's design and if so is there an intention intend to fix this in some
> way by providing checks and balances within jack in case sound card
> disappears, or is this kernel/alsa/driver issue--in this case it is a
> lowlatency kernel. I'm not sure if I mentioned this in my original email
> but this is on 64bit Ubuntu 14.04. Jack devs, I would love to hear from
> you. Thank you.

Inserted a USB audio interface on my notebook and started JACK. Pulling
out the USB interface while JACK was still running froze the whole
notebook. I'd say that's not primarily a JACK issue, something at a
lower level probably goes wrong (Ubuntu 14.04, Jack2, kernel
3.16.0-50-generic).

Jeremy

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