On Fri, Apr 25, 2008 at 07:57:42AM +0000, Sébastien Morand wrote:

>> OK, so it goes wrong before the usb subsystem hands the camera off as a
>> da device. 
>> This is uhub0, so it's recognized as a USB 1.0 device. Is it USB 2.0 capable
> >
>> Is the mp3 player a usb 1.0 device as well? In that case the trouble is
>> probably with the ohci driver, since the USB 2.0 devices seem to work well.
> 
> Both of them are USB 2,0 capable devices (according to manufactor AND I 
> test them under windows, they are recognized as usb 2.0 devices with Hi 
> speed.
> 
> > On 7.x you should have /boot/kernel/kernel.symbols, which is the
> > debugging kernel (/boot/kernel/kernel is the regular, stripped, kernel).
> 
> Ok here is what I get (I have 3 dumps and all give the same results):
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address = 0x0
> fault code            = supervisor read, page not present
> instruction pointer   = 0x20:0x0
> stack pointer         = 0x28:0xe4ab369c
> frame pointer         = 0x28:0xe4ab36dc
> code segment          = base 0x0, limit 0xfffff, type 0x1b
>                       = DPL 0, pres 1, def32 1, gran 1
> processor eflags      = interrupt enabled, resume, IOPL = 0
> current process               = 12 (swi4: clock sio)
> trap number           = 12
> panic: page fault
> cpuid = 0
> Uptime: 34m10s
> Physical memory: 1003 MB
> Dumping 180 MB: 165 149 133 117 101 85 69 53 (CTRL-C to abort)  (CTRL-C to 
> abort)  (CTRL-C to abort)  37 21 5
> 
> #0  doadump () at pcpu.h:195
> 195   pcpu.h: No such file or directory.
>       in pcpu.h

At this point, you should give the command 'bt' (for backtrace) and
report its output.

There seem to be several people who have similar problems lately. Maybe
you should report it to the -usb list as well.

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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