Hi, did you try a newer version of the driver yet? it sounds like a driver bug at first hearing.
--Lennert On Thu, Sep 26, 2002 at 03:26:05PM +0200, Gautier Harmel wrote: > Hi, > > I found bug using the Adlink PCI8214 nic card based on an Intel 82559 > under Linux. > > This bug occurs under a Linux 2.4.17 (e100 driver version 2.1.15 found > on the Intel web site) using the bridge functionality. > I didn't try using an earlier version of linux kernel. > > I used LKCD (linux kernel crash debugger) to further investigate what > happens. > Here are my conclusions : > > 1) the bug occurs in skb_checksum_help function (linux/net/core.dev.c > file) > 2) the disassembly code involved is: > 7c7: 0f 0b ud2a > 7c9: 89 c8 mov %ecx,%eax > 7cb: c1 e1 10 shl $0x10,%ecx > 7ce: 25 00 00 ff ff and $0xffff0000,%eax > 7d3: 01 c8 add %ecx,%eax > 7d5: 15 ff ff 00 00 adc $0xffff,%eax > 7da: f7 d0 not %eax > 7dc: c1 e8 10 shr $0x10,%eax > 7df: 66 89 04 3e mov %ax,(%esi,%edi,1) > 7e3: 89 d8 mov %ebx,%eax > 7e5: c6 43 6b 00 movb $0x0,0x6b(%ebx) > > 3) I think that this assembly code is the following line in > skb_checksum_help: > (*u16*)(skb->h.raw + skb->csum) = csum_fold(csum); (line 933) > > > Maybe skb->h.raw is a bad pointer ??? > > Thanks for help > > Please CC me in your answer, while I didn't subscribe to any of the > mailing list > > Jerome Tollet > [EMAIL PROTECTED] > _______________________________________________ Bridge mailing list [EMAIL PROTECTED] http://www.math.leidenuniv.nl/mailman/listinfo/bridge
