Panic with ugen

Jay Cornwall jay at
Wed Nov 26 11:44:56 PST 2003

Martin wrote:

> Run it once, you'll get an error. The second run
> will cause a panic.
> Additional info:
> 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Tue Nov 18 00:30:15 CET 2003 i386
> usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
> ugen0: WINBOND W9967CF, rev 1.10/1.10, addr 3

This sounds similar to a bug which (I thought) I fixed earlier in the year 
[multiple calls of USB_SET_CONFIG conflicted with devfs, fixed in 
sys/dev/ugen.c rev 1.71].

I have a modem attached to the USB connector at the moment, so it's a bit 
tricky to test. Can you (or someone) provide a backtrace to help trace the cause?

(and is the panic "don't do that", perchance?)

Jay - Systems Administrator & Developer - 3rd year CS student

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