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SubjectRe: Deadlock in kernel on USB shutdown


Greg KH wrote:

>On Wed, Jan 02, 2002 at 08:09:35PM -0500, Roger Leblanc wrote:
>
>>Mmmm, I should have guessed that one. Scanner is quite a good name for a
>>scanner module ;-). Anyway, I moved things around so "scanner" and all
>>the other device specific modules are unloaded before usb-uhci but yet,
>>it doesn't help. It still freeses when unload usb-uhci. Any idea?
>>
>
>Hm, if you umount usbdevfs before unloading usb-uhci, does that work?
>
umount seg-faults while unmounting /proc/bus/usb! Then modprobe also
seg-faults while unloading usb-uhci!!! But the system stays up.
After that, I cannot make my scanner to work even if I run
".../init.d/usb start".
B.T.W. Did I tell you that I can bring the kernel down just by turning
the scanner off and then back again?

Confused Roger


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