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Date: Mon, 28 Aug 2006 22:07:16 +0200 From: Mattia Dongili <malattia@...ux.it> To: Andrew Morton <akpm@...l.org> Cc: linux-kernel@...r.kernel.org, davem@...emloft.net, netdev@...r.kernel.org Subject: divide error: 0000 in fib6_rule_match [Re: 2.6.18-rc4-mm3] On Sat, Aug 26, 2006 at 04:09:22PM -0700, Andrew Morton wrote: > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm3/ [...] > git-net.patch got this one when starting sshd: [ 44.412000] divide error: 0000 [#1] [ 44.412000] 4K_STACKS PREEMPT [ 44.412000] last sysfs file: /devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load [ 44.412000] Modules linked in: nfsd exportfs lockd sunrpc ipt_MASQUERADE iptable_nat ip_nat xt_tcpudp xt_state ip_conntrack iptable_filter ip_tables x_tables ipv6 jfs aes dm_crypt dm_mod rtc sony_acpi tun psmouse sonypi speedstep_ich speedstep_lib cpufreq_conservative cpufreq_ondemand freq_table cpufreq_powersave sd_mod usb_storage scsi_mod usbhid pcmcia snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_timer intel_agp agpgart i2c_i801 snd soundcore snd_page_alloc yenta_socket rsrc_nonstatic pcmcia_core uhci_hcd usbcore evdev e100 mii pcspkr [ 44.412000] CPU: 0 [ 44.412000] EIP: 0060:[<d1516aca>] Not tainted VLI [ 44.412000] EFLAGS: 00210246 (2.6.18-rc4-mm3-1 #6) [ 44.412000] EIP is at fib6_rule_match+0x7a/0x150 [ipv6] [ 44.412000] eax: 00000000 ebx: cd9d4e30 ecx: d15290e0 edx: 00000000 [ 44.412000] esi: cd7d9e08 edi: cd9d4e30 ebp: cd9d4d34 esp: cd9d4d0c [ 44.412000] ds: 007b es: 007b ss: 0068 [ 44.412000] Process sshd (pid: 3780, ti=cd9d4000 task=cf131590 task.ti=cd9d4000) [ 44.412000] Stack: 00000003 c018b200 00000000 ced9df60 cd9d4d6c 00000000 ced9df60 d15290e0 [ 44.412000] cd7d9e08 cd9d4e30 cd9d4d58 c02c198e d15290e0 cd9d4e30 00000000 c123f380 [ 44.412000] cd9d4e30 cd7d9e08 cd9d4e30 cd9d4d80 d15169dc d15290a0 cd9d4e30 00000000 [ 44.412000] Call Trace: [ 44.412000] [<c02c198e>] fib_rules_lookup+0x5e/0xe0 [ 44.412000] [<d15169dc>] fib6_rule_lookup+0x3c/0xb0 [ipv6] [ 44.412000] [<d14f8702>] ip6_route_output+0x32/0x40 [ipv6] [ 44.412000] [<d14ed155>] ip6_dst_lookup_tail+0x95/0xd0 [ipv6] [ 44.412000] [<d14ed1a7>] ip6_dst_lookup+0x17/0x20 [ipv6] [ 44.412000] [<d15120ce>] ip6_datagram_connect+0x36e/0x6c0 [ipv6] [ 44.412000] [<c02f6829>] inet_dgram_connect+0x39/0x80 [ 44.412000] [<c02a6ceb>] sys_connect+0x6b/0x90 [ 44.412000] [<c02a846f>] sys_socketcall+0x9f/0x260 [ 44.412000] [<c010325b>] syscall_call+0x7/0xb [ 44.412000] [<b7c7c93c>] 0xb7c7c93c [ 44.412000] ======================= [ 44.412000] Code: 00 00 00 89 d8 83 e0 1f 0f 85 9a 00 00 00 8b 5d 08 0f b6 53 68 84 d2 75 78 8b 55 08 8b 5d 0c 8b 4a 60 8b 43 28 31 c8 89 d1 31 d2 <f7> 71 64 85 c0 0f 94 c0 0f b6 c0 8b 5d f4 8b 75 f8 8b 7d fc 89 [ 44.412000] EIP: [<d1516aca>] fib6_rule_match+0x7a/0x150 [ipv6] SS:ESP 0068:cd9d4d0c [ 44.412000] <6>note: sshd[3780] exited with preempt_count 1 config and full dmesg: http://oioio.altervista.org/linux/config-2.6.18-rc4-mm3-1 http://oioio.altervista.org/linux/dmesg-2.6.18-rc4-mm3-1 it's at fib6_rules.c:132 but since I can't tell why r->fwmask is 0 I'll avoid proposing a wrong patch :) -- mattia :wq! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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