!!!>>USB problem on FC1 (Digital camera causes kernel panic / lockup)

[James Drabb]

On Tue, 2003-12-02 at 12:56, Charles E Taylor IV wrote:
> On Tue, 02 Dec 2003 09:08:28 -0500
> JacquesDeepSPIN at netscape.net (Jacques DeepSPiN) wrote:
> 
> > Hi,
> 
> > I'm having some serious issues with USB on my FC1. Whenever I connect a
> > USB device to my PC the machine hangs. I'm not sure at all what to do
> > next?
> 
> This may be related to a problem I've been experiencing with FC1 on my
> Thinkpad 570E and my HP Photosmart 315 digital camera.
> 
> Plug in the camera - hotplug detects it, makes a mount point
> (/mnt/camera), and loads usb-storage.  This seems to be the correct
> behavior.  
> 
> Try to mount the camera - mount hangs for about 30 seconds, then I get a
> kernel panic and a hard lockup (requires powering off the machine).
> 
> Other USB devices I've tried (USB CDRW drive, USB mouse, USB Zip drive)
> work fine - but this camera kills FC1 every time.
> 
> I just installed the latest kernel update - haven't had a chance to see if
> that helps.
> 
> Anyone else had trouble with digital cameras causing kernel panics in FC1?

I am having similar problems with FC1 and the usb mass-storage module.
I have an external USB HP 4X cd-rw drive.  When I first plug it in,
usb-storage is loaded.  Running cdrecord -scanbus shows it as device
0,0,0.  Then I burn a CD and it comes out fine.  However, when I try to
burn a second cd, cdrecord pukes with errors.  Running cdrecord -scanbus
again, shows device 0,0,0 but in the description field I get all kinds
of funky characters.  So i do rmmod usb-storage, unplug the cd-rw and
plug it back in and the system hangs.  If I do rmmod usb-storage and
leave the cd-rw plugged in and try to modprobe usb-storage, the system
hangs.  If I do rmmod usb-storage, unplug the cd-rw, do modprobe
usb-storage and then plug the cd-rw back in, the system hangs.  The only
way I can burn two cd's in a row is to reboot!  I guess I could try to
remove all the usb related modules, though my keyboard and mouse both
come in over one usb cable from a Belkin 4 port switch.

I didn't notice this behavior when I was using the same USB cd-rw drive
under RH9.

Jim Drabb
-- 
James Drabb
Senior Programmer Analyst
Davenport, FL USA