Messages in this thread | | | Date | Tue, 11 Aug 1998 15:51:11 +0200 (MET DST) | From | Carsten Jacobi <> | Subject | Bridging-bug with hacker-kernels on Alpha |
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My alpha is crashing when I start bridging. I have found the critical location in the v2.1.115-source:
In net/core/dev.c Line 820 you will find:
cli(); __skb_unlink(skb,&backlog); <---- sti();
And now looking into include/linux/skbuff.h Line 391: extern __inline__ void __skb_unlink(struct sk_buff *skb, struct sk_buff_head *list) { struct sk_buff * next, * prev;
list->qlen--; next = skb->next; prev = skb->prev; skb->next = NULL; skb->prev = NULL; skb->list = NULL; next->prev = prev; <----- prev->next = next; }
The arrow indicates the line where my machine crashes. The problem is that the pointer "next" is a NULL-pointer! Am I right if I guess that you are removing an element out of a list here? It looks like my machine is crashing in the special case, that the last element is removed out of the list. I will try to implement a work around with case differentiation. So till next time ...
Carsten
---------------------------------- E-Mail: Carsten Jacobi <carsten@jakes.kawo1.rwth-aachen.de> Date: 11-Aug-98 Time: 11-Aug-9
Phone-Number: +49-241-878117 Fax-Number: +49-241-878189
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