[Dnsmasq-discuss] BUG: unable to handle kernel paging request at 0040b4e0

richardvoigt at gmail.com richardvoigt at gmail.com
Sun Oct 25 04:46:07 GMT 2009


On Sat, Oct 24, 2009 at 10:17 PM,  <toobyddum at gmail.com> wrote:
> hello, everyone~~~
>
> I got a kernel panic after dnsmasq has running about 1 days, dnsmasq version
> is 2.4.9, kernel is: 2.6.26.8

Most likely a hardware problem, possibly a kernel bug.  It's not
possible for an application such as dnsmasq, with no kernel
components, to create a kernel panic.

>
> Any reply or suggestion is great appreciated. :)
>
> dmesg details as follows:
>
> BUG: unable to handle kernel paging request at 0040b4e0
> IP: [<c025cf13>] d_instantiate+0xf/0x2b
> *pde = 00000000
> Oops: 0002 [#1]
> Modules linked in: sch_ingress act_mirred cls_u32 sch_sfq sch_htb pcspkr
> ppp_mppe ipt_TTL xt_hashlimit nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp
> nf_conntrack_proto_gre ipt_REDIRECT ipt_set xt_mark xt_TCPMSS ip_set_iphash
> ip_set xt_conntrack ipt_ACCOUNT iptable_raw arpt_mangle 8250_pnp 8250_pci
> 8250 serial_core nf_nat_ftp pppoe pppox nf_conntrack_ftp
> nf_conntrack_netlink ppp_generic slhc xt_owner xt_TEE xt_condition
> compat_xtables ipt_NETMAP arptable_filter arp_tables ipt_MASQUERADE ipt_ULOG
> ipt_recent xt_multiport ipt_REJECT xt_DSCP xt_time xt_layer7 xt_iprange
> ipt_ipp2p iptable_mangle iptable_filter iptable_nat nf_nat nf_conntrack_ipv4
> ip_tables xt_connlimit xt_helper xt_string xt_MARK xt_comment xt_state
> nf_conntrack xt_limit xt_mac xt_tcpudp x_tables nfnetlink ifb via_rhine e100
> fbcon font bitblit softcursor vga16fb fb cfbcopyarea vgastate cfbimgblt
> cfbfillrect tcp_bic
>
> Pid: 17755, comm: dnsmasq Not tainted (2.6.26.8-i386 #182)
> EIP: 0060:[<c025cf13>] EFLAGS: 00010286 CPU: 0
> EIP is at d_instantiate+0xf/0x2b
> EAX: 0040b4dc EBX: df010898 ECX: df009344 EDX: df0108d4
> ESI: df009320 EDI: df010898 EBP: de1a0000 ESP: de1a1f48
>  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
> Process dnsmasq (pid: 17755, ti=de1a0000 task=de7694a0 task.ti=de1a0000)
> Stack: de0f61a0 c046fade 00000000 00000000 c05a6c16 0000001b 0000001b
> df009320
>        c046fb45 de0f61a0 00000000 f04b2fdc 0806d410 c0470534 df009320
> 00000000
>        c0470cac 00000002 00000002 00000000 00000002 00000002 00000000
> 00000000
> Call Trace:
>  [<c046fade>] sock_attach_fd+0x4f/0x95
>  [<c046fb45>] sock_map_fd+0x21/0x4a
>  [<c0470534>] sys_socket+0x27/0x3a
>  [<c0470cac>] sys_socketcall+0x51/0x181
>  [<c0202e59>] sysenter_past_esp+0x6a/0x91
>  =======================
> Code: c3 56 89 d6 53 e8 fd fc ff ff 85 c0 89 c3 74 07 89 f0 e8 b8 07 00 00
> 89 d8 5b 5e c3 85 d2 89 d1 53 89 c3 74 15 8d 50 3c 8b 41 18 <89> 50 04 89 43
> 3c 8d 41 18 89 43 40 89 51 18 89 4b 08 89 d8 89
> EIP: [<c025cf13>] d_instantiate+0xf/0x2b SS:ESP 0068:de1a1f48
> Clocksource tsc unstable (delta = 18747400082 ns)
> ---[ end trace 4d6c85ead67accb1 ]---
>
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