Public bug reported:
my environments:
root@node:~# uname -a
Linux node. 3.13.0-67-generic #110-Ubuntu SMP Fri Oct 23 13:24:41 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
root@node:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty
I test both 3.0.3-2.1 and 3.0.3-2, it dose not woking
this is error log in syslog
Nov 8 16:42:54 node kernel: [ 498.940505] vtund[9853]: segfault at 0
ip 0000000000408f40 sp 00007fff0817ab60 error 4 in vtund[400000+13000]
here is my option
default {
compress no; # Compression is off by default
speed 0; # By default maximum speed, NO shaping
}
cobra {
type tun; # IP tunnel
proto tcp; # UDP protocol
encrypt yes; # Encryption
keepalive yes; # Keep connection alive
multi killold; #control multiple connections. value c
...}
this is my strace log
9852 16:42:54.731246 brk(0) = 0x24f7000
9852 16:42:54.731332 brk(0x2518000) = 0x2518000
9852 16:42:54.731422 socket(PF_LOCAL, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 3
9852 16:42:54.731518 connect(3, {sa_family=AF_LOCAL, sun_path="/dev/log"},
110) = 0
9852 16:42:54.731837 open("/etc/vtund.conf", O_RDONLY) = 4
9852 16:42:54.731987 ioctl(4, SNDCTL_TMR_TIMEBASE or
SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x7fff0817a490) = -1 ENOTTY
(Inappropriate ioctl for device)
9852 16:42:54.732130 fstat(4, {st_mode=S_IFREG|0600, st_size=1149, ...}) = 0
9852 16:42:54.732321 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7305096000
9852 16:42:54.732418 read(4, "# ----- CUT HERE --- Server config --- CUT HERE
-----\n#\noptions {\n port 5566;\t\t# Listen on this port.\n timeout 5;\n
bindaddr { iface eth0; }; # Listen only on loopback device.\n\n # Syslog
facility\n syslog \tdaemon;\n\n # Path to various programs\n ppp
\t\t/usr/sbin/pppd; \n ifconfig \t/sbin/ifconfig;\n route
\t/sbin/route;\n ip\t\t/sbin/ip;\n}\n\n# Default session options \ndefault {\n
compress no; \t# Compression is off by default\n speed 0;\t\t# By default
maximum speed, NO shaping\n}\n\n# the same as above, but with iproute2
command\ncobra {\n passwd dpqPlf8@12;\t# Password\n type tun;\t\t# IP
tunnel \n proto tcp; \t\t# UDP protocol\n #compress zlib:3;\t# LZO
compression level 9\n encrypt yes;\t\t# Encryption\n keepalive yes;\t# Keep
connection alive\n multi killold;\t\t#control multiple connections. value can
be yes or allow to allow multiple connections, no or deny to deny them or
killold to allow new
connection and kill old one. Ignored by the client.\n\n up {\n\t# Connection
is Up \n\n\t# 10.3.0.1 - local, 10.3.0."..., 8192) = 1149
9852 16:42:54.732537 read(4, "", 4096) = 0
9852 16:42:54.732729 read(4, "", 8192) = 0
9852 16:42:54.732820 ioctl(4, SNDCTL_TMR_TIMEBASE or
SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x7fff0817a490) = -1 ENOTTY
(Inappropriate ioctl for device)
9852 16:42:54.732918 close(4) = 0
9852 16:42:54.733006 munmap(0x7f7305096000, 4096) = 0
9852 16:42:54.733134 clone(child_stack=0,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f730508ba10) = 9853
9852 16:42:54.733789 exit_group(0) = ?
9852 16:42:54.733993 +++ exited with 0 +++
** Affects: vtun (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1514159
Title:
kernel: [ 498.940505] vtund[9853]: segfault at 0 ip 0000000000408f40
sp 00007fff0817ab60 error 4 in vtund[400000+13000]
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