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hi!  My linux is 2.4.20, I have two Interl netcard, driver is e100.o, when I add eth0 and eth1 to br0, all is right, then I remove eth0 or eth1 from br0, then add, remove,add. repeat some times, my kernel panic, screen show dev.c: call skb_checksum_help(): 947 conduce this problem.       skb_checksum_help() as follows:   struct sk_buff * skb_checksum_help(struct sk_buff *skb) {  int offset;  unsigned int csum;  offset = skb->h.raw - skb->data;  if (offset > (int)skb->len)   BUG();  csum = skb_checksum(skb, offset, skb->len-offset, 0);  offset = skb->tail - skb->h.raw;  if (offset <= 0)   BUG();  if (skb->csum+2 > offset)   BUG();    // this is the 947 line in dev.c     *(u16*)(skb->h.raw + skb->csum) = csum_fold(csum);  skb->ip_summed = CHECKSUM_NONE;  return skb; }           before kernel panic,somtimes, when I use ifconfig config eth1 ip address,appear a error: Multicast setup failed, then my compute can't ping any other host. I find "Multicast setup failed" in e100's src(e100_main.c).      while I replace eepro100.o with e100.o, all is right, no panic, and no "Multicast setup failed".     but I want use e100.o, Could you tell me how to resolve this problem?         thanks!                       Kunkai Shen                    E-Mail: [EMAIL PROTECTED]

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Content preview:  --====2_Dragon738264534364_====Content-Type:
  text/plain; charset="GB2312" Content-Transfer-Encoding: 7bit hi! My
  linux is 2.4.20, I have two Interl netcard, driver is e100.o, when I
  add eth0 and eth1 to br0, all is right, then I remove eth0 or eth1 from
  br0, then add, remove,add. repeat some times, my kernel panic, screen
  show dev.c: call skb_checksum_help(): 947 conduce this problem. [...] 

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