Matthew Dillon wrote:
quoted text > :http://opengrok.creo.hu/dragonfly/xref/src/sys/bus/usb/usb.c#374
> :
> :More specifically:
> :
> :
http://opengrok.creo.hu/dragonfly/xref/src/sys/sys/queue.h#428
> :
> : *(head)->tqh_last = (elm);
> :
> :This expands to:
> :
> : *(&taskq->tasks)->tgh_last = task;
> :
> :There a NULL pointer is dereferenced somehow.
>
> It looks like memory corruption. USB may be issuing duplicate TAILQ
> operations on its taskq structure(s).
>
> Please try this patch. If it doesn't work then one or more task
> structure is probably being ripped out from under the usb code,
> probably by somthing related to uhci_timeout() as you previously
> reported. My guess is that uhci_detach() is ripping the structure
> out without waiting for the abort to finish but lets see if this
> patch has any effect first.
>
> -Matt
Thank you very much! An ISO image for testing it would be great, as I
can't compile it myself (no DF system running). Hum, I don't want to ask
for too much :). BTW, is it possible to cross-compile DF on FreeBSD?
Regards,
Michael