From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denys Fedoryshchenko Subject: kernel panic, 2.6.38.2, gretap Date: Thu, 14 Apr 2011 01:58:24 +0300 Message-ID: <3dfb4abac84b3e0147fa25a5e3a9563e@visp.net.lb> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: Return-path: Received: from rev-153-13.globalproof.net ([194.146.153.13]:54122 "EHLO hosting.visp.net.lb" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S932694Ab1DMXGJ (ORCPT ); Wed, 13 Apr 2011 19:06:09 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Did following rule to route incoming (over eth0) traffic over gretap interface Bringing up interface ip link add eoip1 type gretap remote X.X.X.X local Y.Y.Y.Y nopmtudisc ifconfig eoip1 10.255.254.1 netmask 255.255.255.252 up mtu 1500 made source routing: 32000: from all iif eth0 lookup 203 Some routes added to table 203 After few(1-3) seconds running around 30-40 Mbps getting kernel panic: Notes: I have vlan on same interface, eth0.2023, where rest of traffic going, and this vlan "shaped" by HTB. It is not involved in gretap operation. on eth0 i have huge bfifo: qdisc bfifo 8001: dev eth0 root refcnt 9 limit 100000000b Sent 14652829681 bytes 15646355 pkt (dropped 0, overlimits 0 requeues 8) backlog 0b 0p requeues 8 [ 658.492347] skb_over_panic: text:f80f37d4 len:3028 put:1514 head:d1af2000 data:d1af20a4 tail:0xd1af2c78 end:0xd1af2700 dev:eth0.2022 [ 658.492975] ------------[ cut here ]------------ [ 658.493264] Kernel BUG at c0377eaf [verbose debug info unavailable] [ 658.493317] invalid opcode: 0000 [#1] SMP [ 658.493317] last sysfs file: /sys/devices/virtual/net/eth0.2022/address [ 658.493317] Modules linked in: ip_gre gre netconsole ipmi_si tun configfs cls_u32 sch_htb 8021q garp stp llc iptable_filter ipt_addrtype xt_dscp xt_string xt_owner xt_multiport xt_iprange xt_hashlimit xt_conntrack xt_DSCP xt_NFQUEUE xt_mark xt_connmark nf_conntrack ip_tables x_tables bnx2 ipmi_devintf ipmi_msghandler processor ata_piix i5k_amb iTCO_wdt pata_acpi hwmon [last unloaded: netconsole] [ 658.493317] [ 658.493317] Pid: 0, comm: kworker/0:1 Not tainted 2.6.38.2-devel2 #2 Dell Inc. PowerEdge 1950 / 0D8635 [ 658.493317] EIP: 0060:[] EFLAGS: 00010282 CPU: 3 [ 658.493317] EIP is at skb_put+0x7f/0x89 [ 658.493317] EAX: 0000008e EBX: d1af2c78 ECX: f64b5e40 EDX: c05032e8 [ 658.493317] ESI: 000005ea EDI: f5f28380 EBP: 006d006d ESP: f64b5e3c [ 658.493317] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 658.493317] Process kworker/0:1 (pid: 0, ti=f64b4000 task=f64a4a80 task.ti=f64b0000) [ 658.493317] Stack: [ 658.493317] c05032e8 f80f37d4 00000bd4 000005ea d1af2000 d1af20a4 d1af2c78 d1af2700 [ 658.493317] f5e54000 00000000 eee81e00 f80f37d4 00000604 00000002 00000000 e5602500 [ 658.493317] 00000001 f6b02cb8 0000004d 512e75c0 eef28480 00000000 f5f28400 f5f28380 [ 658.493317] Call Trace: [ 658.493317] [] ? bnx2_poll_work+0x980/0xf48 [bnx2] [ 658.493317] [] ? bnx2_poll_work+0x980/0xf48 [bnx2] [ 658.493317] [] ? hrtimer_start+0x20/0x25 [ 658.493317] [] ? htb_dequeue+0x757/0x770 [sch_htb] [ 658.493317] [] ? bnx2_poll+0xf7/0x1d9 [bnx2] [ 658.493317] [] ? net_rx_action+0x8c/0x176 [ 658.493317] [] ? __do_softirq+0x6b/0x104 [ 658.493317] [] ? __do_softirq+0x0/0x104 [ 658.493317] [ 658.493317] [] ? irq_exit+0x26/0x59 [ 658.493317] [] ? do_IRQ+0x81/0x95 [ 658.493317] [] ? common_interrupt+0x29/0x30 [ 658.493317] [] ? mwait_idle+0x51/0x56 [ 658.493317] [] ? cpu_idle+0x41/0x5e [ 658.493317] Code: 24 14 8b 81 a4 00 00 00 89 74 24 0c 89 44 24 10 8b 41 4c c7 04 24 e8 32 50 c0 89 44 24 08 8b 44 24 2c 89 44 24 04 e8 51 85 07 00 Apr 13 22:48:46 217.151.224.119 unparseable log message: "<0f> " 0b eb fe 83 c4 24 5b 5e c3 55 57 56 53 83 ec 24 fc 89 c5 89 [ 658.493317] EIP: [] skb_put+0x7f/0x89 SS:ESP 0068:f64b5e3c [ 658.512472] ---[ end trace d06a076521439891 ]--- [ 658.512750] Kernel panic - not syncing: Fatal exception in interrupt [ 658.514034] Rebooting in 5 seconds..