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Message #29445
[Bug 1252032] [NEW] hard hang when using l2tpd/pppd with IPv6
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
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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..
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