Re: get usb device descriptor through ioctl?

[thomas nivelet <lugarbleiz%gmail.com@localhost>]

2010/2/13 Manuel Bouyer <bouyer%antioche.eu.org@localhost>:
> On Sat, Feb 13, 2010 at 08:01:41PM +0100, thomas nivelet wrote:
>> fatal page fault in supervisor mode
>> trap type 6 code 0 eip c06412ff cs k...
>
> The interesting part starts here. What happens after that ?
> if not already done, do
> sysctl -w ddb.onpanic=1
> and at the db> promt, type 'tr'
>
> --
> Manuel Bouyer <bouyer%antioche.eu.org@localhost>
> Â Â NetBSD: 26 ans d'experience feront toujours la difference
> --
>

here is the trace:

usb_transfer_complete(c1f79700,16e0,10,a,cb166f80,c1f6b640,0,c1f79700,c2012280,0)
at netbsd:usb_transfer_complete+0x3f
uhci_idone(c1f79754,16b4,4,a,8,28000000,cbad9000,c1f7977c,0,cbb226e0)
at netbsd:uhci_idone+0xb6
uhci_softintr(cbad9004,0,0,0,0,0,1000000,3,0,0) at netbsd:uhci_softintr+0x1af
softint_dispatch(cb16ec80,4,ffffffff,dfffffff,0,20000000,cb591d90,cb591d28,cb16ea00,0)
at netbsd:softint_dispatch+0x70
DDB lost frame for netbsd:Xsoftintr+0x3b, trying 0xcb591d88
Xsoftintr() at netbsd:Xsoftintr+0x3b
fatal page fault i supervisor mode
trap type 6 code 0 eip c02454e0 cs 8 eflags 10246 cr 2 ffffffff ilevel 8
kernel: supervisor trap page fault, code=0
faulted in DDB; continuing...