On Wed, 01 Nov 2006 17:49:31 -0800 (PST) David Miller <[EMAIL PROTECTED]> wrote:
> From: Stephen Hemminger <[EMAIL PROTECTED]> > Date: Wed, 01 Nov 2006 16:56:35 -0800 > > > My desktop machine (Fedora Core 6) crashed on during shutdown when > > running latest > > 2.6.19-rc4 kernel. Machine is UP Amd64. > > > > It looks like a null dereference in ip_conntrack. See screenshot. > > > > http://picasaweb.google.com/stephen.hemminger/LinuxCrashes/photo#4992593950061821970 > > Can some x86_64 expert decode this? I'm trying to figure out what > object is being NULL defer'd, and after taking a quick look at > this dump I can't figure it out. > > I suspect there may also be a OOPS right before this one, I also > wonder if this was actually a BUG_ON() trigger. > - > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html Instruction decode of ip_conntrack:destroy_conntrack+0xfc = 0x21ce 2177: 75 0a jne 2183 <destroy_conntrack+0xb1> 2179: 0f 0b ud2a 217b: 68 00 00 00 00 pushq $0x0 2180: c2 56 01 retq $0x156 2183: 48 8b 41 08 mov 0x8(%rcx),%rax 2187: 48 89 42 08 mov %rax,0x8(%rdx) 218b: 48 89 10 mov %rdx,(%rax) 218e: 48 c7 41 08 00 02 20 movq $0x200200,0x8(%rcx) 2195: 00 2196: 48 c7 83 f8 00 00 00 movq $0x100100,0xf8(%rbx) 219d: 00 01 10 00 21a1: ff 05 00 00 00 00 incl 0(%rip) # 21a7 <destroy_conntrack+0xd5> 21a7: bf 01 00 00 00 mov $0x1,%edi 21ac: e8 00 00 00 00 callq 21b1 <destroy_conntrack+0xdf> 21b1: e8 00 00 00 00 callq 21b6 <destroy_conntrack+0xe4> 21b6: 48 8b 53 58 mov 0x58(%rbx),%rdx 21ba: 48 85 d2 test %rdx,%rdx 21bd: 74 0f je 21ce <destroy_conntrack+0xfc> 21bf: ff 0a decl (%rdx) 21c1: 0f 94 c0 sete %al 21c4: 84 c0 test %al,%al 21c6: 74 06 je 21ce <destroy_conntrack+0xfc> 21c8: 48 89 d7 mov %rdx,%rdi 21cb: ff 52 08 callq *0x8(%rdx) 21ce: 48 89 df mov %rbx,%rdi <--- last visible spot in back trace 21d1: 5b pop %rbx 21d2: e9 00 00 00 00 jmpq 21d7 <invert_tuplepr> - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
