On 2012.08.02 13:28, sebasti...@gmx-topmail.de wrote:
> (gdb) print ((struct usbi_transfer*)0xb6600468)->list
> $4 = {prev = 0x0, next = 0x0}

This confirms that our list is screwed up and since we don't check for 
the next/prev validity, we end up with a NULL dereference (actually 
NULL-4), hence the crash.

Now we have to find out why one of list_add, list_add_tail, list_del 
results in prev/next being NULL...

Regards,

/Pete

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