On 10/09/13 12:04, Daniel O'Connor wrote:
We have a custom Cypress FX2 based data acquisition card connected to a FreeBSD
Today the device disconnected
Oct 9 03:24:11 juskym kernel: ugsio0: at uhub3, port 1, addr 3 (disconnected)
and then some time later we noticed the data acquisition process was stuck in
'USB config SX lock' (and un-killable). I ran usbconfig and it also got stuck
in the same wchan.
I tried rebooting it and got stuck with this on the screen..
usbus0: Controller shutdown complete
usbus1: Controller shutdown
I have previously run the same hardware on 9.0 (where there was a panic in
devfs triggered if the DAQ card disconncted sometimes) and 9.1 (where I have
not seen any problems).
Does anyone have an idea about how I could go about gathering more information
if it happens again?
It is not a deadlock. It is just that the reference in /dev/cuaUX does
not go away. Have you tried 9-stable? There are also some sysctls you
can set, see hw.usb to change the shutdown behaviour.
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