> -----Original Message----- > From: dev [mailto:dev-boun...@openvswitch.org] On Behalf Of > karuppusamy.marappagoun...@wipro.com > Sent: Thursday, December 10, 2015 3:15 PM > To: dev@openvswitch.org > Subject: [ovs-dev] set -controller is causing the kernel crash with DPDK 2.0 > + OVS 2.4 > > Hi, > > In our experiment we are using OVS 2.4 with DPDK 2.0 with Centos 7.0 + > kernel 3.18.22. > > We added few physical ports to the PMD thread and added to the bridge. > Also created KNI interface between vEth and the physical port part of the > bridge. We could send and receive the traffic via KNI. > When we attach a controller i.e. ovs-vsctl --no-wait set-controller br0 > tcp:127.0.0.1:6653 we are seeing that kni_thread is crashed. > > Crash is not seen when we don't have KNI interface present. Also, > without having controller added we are able to work with multiple pairs of > vEth - PHY via KNI. > > Appreciating any hints on this topic!
Not sure why this would be. Cross-posting to dpdk-users mailing list as someone might have some clues there. You could try with the latest head of master ovs/dpdk code in case it's anything that has been fixed already. > > Thanks > Samy > > > Below is the dump of the 'kmsg' reported. > > <4>Stack: > <4> ffff880153937d48 ffff880153937d50 ffff880150814000 0000000000000001 > <4> 000000002138f240 ffffffff810cf36b ffff880153937df8 ffffffff82055980 > <4> 0000000100250151 0000000000000282 ffff880153937da8 ffffffff810d042f > <4>Call Trace: > <4> [<ffffffff810cf36b>] ? lock_timer_base.isra.35+0x2b/0x50 > <4> [<ffffffff810d042f>] ? try_to_del_timer_sync+0x4f/0x70 > <4> [<ffffffff810d04a2>] ? del_timer_sync+0x52/0x60 > <4> [<ffffffff81653bb6>] ? schedule_timeout+0x166/0x290 > <4> [<ffffffff810cf240>] ? internal_add_timer+0x80/0x80 > <4> [<ffffffffa041743f>] kni_net_rx+0xf/0x20 [rte_kni] > <4> [<ffffffffa041577e>] kni_thread_single+0x5e/0xb0 [rte_kni] > <4> [<ffffffffa0415720>] ? kni_release+0x100/0x100 [rte_kni] > <4> [<ffffffff81089bc9>] kthread+0xc9/0xe0 > <4> [<ffffffff81089b00>] ? kthread_create_on_node+0x180/0x180 > <4> [<ffffffff81654f18>] ret_from_fork+0x58/0x90 > <4> [<ffffffff81089b00>] ? kthread_create_on_node+0x180/0x180 > <4>Code: 48 89 85 b8 fe ff ff eb 0c 0f 1f 44 00 00 48 8b 13 48 83 c3 08 49 8b > 8d a8 01 00 00 4d 8b b5 a0 01 00 00 31 ff 48 29 ca 4c 01 f2 <44> 0f b7 62 22 > 0f b7 42 12 48 03 02 ba 20 00 00 00 45 0f b7 cc > <1>RIP [<ffffffffa0416905>] kni_net_rx_normal+0x145/0x2c0 [rte_kni] > <4> RSP <ffff880153937d28> > <4>---[ end trace 8a2acec3270c7c4b ]--- > > > The information contained in this electronic message and any attachments to > this message are intended for the exclusive use of the addressee(s) and may > contain proprietary, confidential or privileged information. If you are not > the intended recipient, you should not disseminate, distribute or copy this > e-mail. Please notify the sender immediately and destroy all copies of this > message and any attachments. WARNING: Computer viruses can be transmitted via > email. The recipient should check this email and any attachments for the > presence of viruses. The company accepts no liability for any damage caused > by any virus transmitted by this email. www.wipro.com > _______________________________________________ > dev mailing list > dev@openvswitch.org > http://openvswitch.org/mailman/listinfo/dev _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
