LinuxQuestions.org - Xorg -configure error： Caught signal 11 (Segmentation fault). Server aborting

Hello everyone ,,
I'm using a VirtualBox 4.3.4 as a gust for installing an gentoo.
I'm now trying to install xorg on it, "emerge x11-base/xorg-x11" OK, but something wrong when I'm doing "Xorg -configure" ,I got the following error ...

Code:

localhost ~ # Xorg -configure



X.Org X Server 1.14.3

Release Date: 2013-09-12

X Protocol Version 11, Revision 0

Build Operating System: Linux 3.10.17-gentoo i686 Gentoo

Current Operating System: Linux localhost 3.10.17-gentoo #7 SMP Tue Jan 14 18:27:24 CST 2014 i686

Kernel command line: BOOT_IMAGE=/boot/kernel-3.10.17-gentoo root=/dev/sda3 ro

Build Date: 11 January 2014  12:47:09PM



Current version of pixman: 0.32.4

        Before reporting problems, check http://wiki.x.org

        to make sure that you have the latest version.

Markers: (--) probed, (**) from config file, (==) default setting,

        (++) from command line, (!!) notice, (II) informational,

        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.

(==) Log file: "/var/log/Xorg.0.log", Time: Wed Jan 15 15:02:55 2014

List of video drivers:

        tga

        .

        .

        .

(++) Using config file: "/root/xorg.conf.new"

(==) Using system config directory "/usr/share/X11/xorg.conf.d"

(EE)

(EE) Backtrace:

(EE) 0: Xorg (xorg_backtrace+0x58) [0xb7708848]

(EE) 1: Xorg (0xb7539000+0x1d3d87) [0xb770cd87]

(EE) 2: linux-gate.so.1 (__kernel_rt_sigreturn+0x0) [0xb751640c]

(EE)

(EE) Segmentation fault at address 0x0

(EE)

Fatal server error:

(EE) Caught signal 11 (Segmentation fault). Server aborting

(EE)

(EE)

the graphics card in my compute is: "Intel(R) HD Graphics 4000"

I don't know what to do, anyong can help me?