** Description changed:
x11vnc fails to start with the following command:
- /usr/bin/x11vnc -inetd -q -env FD_XDM=1 -auth guess -display :0 -unixpw root
+ /usr/bin/x11vnc -inetd -q -env FD_XDM=1 -auth guess -display :0 -unixpw root
It starts if you leave off the -auth guess (but won't allow connection)
- Removing -env FD_XDM=1 starts cleanly, and allows connection
+ Removing -env FD_XDM=1 AND -auth guess starts cleanly, and allows
+ connection
This behaviour has changed since 20140626, which is when it most recently
worked for me (and had been working for ~5 years prior to that).
x11vnc hasn't updated, but several of it's ssl dependencies have, as well as
libc6.
Ubuntu 14.04 (up to date)
ii x11vnc 0.9.13-1.1
amd64 VNC server to allow remote access to an existing X session
ii x11vnc-data 0.9.13-1.1
all data files for x11vnc
x11vnc
- Depends: openssl *changed since 20140626
- Depends: tk
- Depends: x11vnc-data
- Depends: libavahi-client3
- Depends: libavahi-common3
- Depends: libc6 *changed since 20140626
- Depends: libssl1.0.0 *changed since 20140626
- Depends: libvncserver0 *changed since 20140626
- Depends: libx11-6
- Depends: libxdamage1
- Depends: libxext6
- Depends: libxfixes3
- Depends: libxinerama1
- Depends: libxrandr2
- Depends: libxtst6
+ Depends: openssl *changed since 20140626
+ Depends: tk
+ Depends: x11vnc-data
+ Depends: libavahi-client3
+ Depends: libavahi-common3
+ Depends: libc6 *changed since 20140626
+ Depends: libssl1.0.0 *changed since 20140626
+ Depends: libvncserver0 *changed since 20140626
+ Depends: libx11-6
+ Depends: libxdamage1
+ Depends: libxext6
+ Depends: libxfixes3
+ Depends: libxinerama1
+ Depends: libxrandr2
+ Depends: libxtst6
strace sample (complete broken trace attached):
- Non-working:
+ Non-working:
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f916df28000
read(3, "", 4096) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4794, si_status=0,
si_utime=0, si_stime=0} ---
close(3) = 0
wait4(4794, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 4794
munmap(0x7f916df28000, 4096) = 0
shmdt(0) = -1 EINVAL (Invalid argument)
shmctl(0, IPC_RMID, 0) = -1 EIDRM (Identifier removed)
shmdt(0) = -1 EINVAL (Invalid argument)
shmctl(0, IPC_RMID, 0) = -1 EIDRM (Identifier removed)
shmdt(0) = -1 EINVAL (Invalid argument)
shmctl(0, IPC_RMID, 0) = -1 EIDRM (Identifier removed)
exit_group(1) = ?
+++ exited with 1 +++
==============================================
Working (20140626 build):
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fec98926000
read(3, "XAUTHORITY=/var/run/xauth/A:0-jK"..., 4096) = 37
read(3, "", 4096) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2833, si_status=0,
si_utime=0, si_stime=0} ---
close(3) = 0
wait4(2833, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 2833
munmap(0x7fec98926000, 4096) = 0
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
connect(3, {sa_family=AF_LOCAL, sun_path=@"/tmp/.X11-unix/X0"}, 20) = 0
getpeername(3, {sa_family=AF_LOCAL, sun_path=@"/tmp/.X11-unix/X0"}, [20]) = 0
uname({sys="Linux", node="bilgtit6", ...}) = 0
access("/var/run/xauth/A:0-jKLcZb", R_OK) = 0
open("/var/run/xauth/A:0-jKLcZb", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0600, st_size=44, ...}) = 0
...
===============================================
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https://bugs.launchpad.net/bugs/1386472
Title:
x11vnc crashes when using the -env FD_XDM=1 -auth guess switch
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