Re: USB scanner issue (Was: Re: Beaver in Detox!)

[Greg KH <greg@kroah.com>]

On Fri, Nov 28, 2003 at 11:26:25AM -0700, Tom Rini wrote:
> On Wed, Nov 26, 2003 at 12:55:00PM -0800, Linus Torvalds wrote:
> 
> [snip]
> > I give you "Beaver in Detox", aka linux-2.6.0-test11. This is mainly
> > brought on by the fact that the old aic7xxx driver was broken in -test10,
> > and Ingo found this really evil test program that showed an error case in
> > do_fork() that we had never handled right. Well, duh!
> 
> I've found an odd problem that's in at least 2.6.0-test11.  I've
> reproduced this twice now with an Epson 1240 USB scanner
> (0x04b8/0x010b).  What happens is if I run xsane from gimp, acquire a
> preview, start to scan and then cancel, the scanner becomes
> unresponsive.  If I try and quit xsane, it gets stuck.  Unplugging /
> replugging and then trying to kill xsane locked the machine up hard.
> 
> Here's ver_linux, dmesg and the versions of gimp/xsane I'm running (I've
> used the scanner during this boot, without trying to lock it up):

Can't you use xsane without the scanner kernel driver?  I thought the
latest versions used libusb/usbfs to talk directly to the hardware.
Because of this, the USB scanner driver is marked to be removed from the
kernel sometime in the near future.

thanks,

greg k-h