Messages in this thread | | | Date | Sat, 8 May 1999 10:24:45 +0100 (GMT) | From | Tim Waugh <> | Subject | Re: Repeated kernel oops from 2.2.{5,7} router |
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On Fri, 7 May 1999, Roy Stogner wrote:
> eax: c02bde3c ebx: 00000001 ecx: c02bde30 edx: 00000000 > esi: c02bddc0 edi: c1fda000 ebp: c0200008 esp: c020bf28 [...] > Code: c016570b <pfifo_fast_dequeue+1b/50> 00000000 <_EIP>: <=== > Code: c016570b <pfifo_fast_dequeue+1b/50> 0: 89 4a 04 movl %ecx,0x4(%edx) <=== > Code: c016570e <pfifo_fast_dequeue+1e/50> 3: 89 11 movl %edx,(%ecx) > Code: c0165710 <pfifo_fast_dequeue+20/50> 5: c7 00 00 00 00 movl $0x0,(%eax) > Code: c0165715 <pfifo_fast_dequeue+25/50> a: 00 > Code: c0165716 <pfifo_fast_dequeue+26/50> b: c7 40 04 00 00 movl $0x0,0x4(%eax) > Code: c016571b <pfifo_fast_dequeue+2b/50> 10: 00 00 > Code: c016571d <pfifo_fast_dequeue+2d/50> 12: c7 40 00 00 00 movl $0x0,0x0(%eax) > Code: c0165722 <pfifo_fast_dequeue+32/50> 17: 00 00
This is in __skb_dequeue:
prev = (struct sk_buff *) list; next = prev->next; result = NULL; if (next != prev) { result = next; next = next->next; list->qlen--; next->prev = prev; <-- here prev->next = next; result->next = NULL; result->prev = NULL; result->list = NULL; } return result;
Somehow, list->next->next is NULL, even though it's a circular list.
Tim. */
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