Public bug reported: I'm not completely sure how to summarise this bug, but it's obviously potentially fatal and related to the kernel components of either xl2tpd, pppd or IPv6.
I have an IPv6 connection using xl2tpd to make a ppp connection and then route IPv6 over that... this works fine, but if I stress it using heavy traffic such as bittorrent, the entire system will lock up at the kernel level after a time, between 10 minutes and 1 hour approximately. This is using Trusty with the 3.12 kernel as of 17/Nov 2013... I'm really not sure how to go about debugging this, the only clue I can find is this:- Nov 16 23:32:17 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:17 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:18 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:18 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:19 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:19 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:20 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:20 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:21 trinity xl2tpd[2849]: control_finish: Connection closed to 85.119.84.18, port 1701 (Timeout), Local: 25286, Remote: 35506 Nov 16 23:32:21 trinity xl2tpd[2849]: Terminating pppd: sending TERM signal to pid 7386 The connection is then re-established.. ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1252032 Title: hard hang when using l2tpd/pppd with IPv6 Status in “linux-firmware” package in Ubuntu: New Bug description: I'm not completely sure how to summarise this bug, but it's obviously potentially fatal and related to the kernel components of either xl2tpd, pppd or IPv6. I have an IPv6 connection using xl2tpd to make a ppp connection and then route IPv6 over that... this works fine, but if I stress it using heavy traffic such as bittorrent, the entire system will lock up at the kernel level after a time, between 10 minutes and 1 hour approximately. This is using Trusty with the 3.12 kernel as of 17/Nov 2013... I'm really not sure how to go about debugging this, the only clue I can find is this:- Nov 16 23:32:17 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:17 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:18 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:18 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:19 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:19 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:20 trinity xl2tpd[2849]: check_control: Received out of order control packet on tunnel 35506 (got 4, expected 5) Nov 16 23:32:20 trinity xl2tpd[2849]: handle_packet: bad control packet! Nov 16 23:32:21 trinity xl2tpd[2849]: control_finish: Connection closed to 85.119.84.18, port 1701 (Timeout), Local: 25286, Remote: 35506 Nov 16 23:32:21 trinity xl2tpd[2849]: Terminating pppd: sending TERM signal to pid 7386 The connection is then re-established.. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1252032/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp