libva error after installing Media Server Studio 2017 on Centos 7

[yair_s_]

I am trying to install the Intel MSS 2017 on my Centos 7.2.1511

When I type the command: "cat lspci -nn -s 0:02.0" this is the output:

00:02.0 VGA compatible controller [0300]: Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07)

meaning I have the appropriate hardware to run it, but after I finished running the installation scripts, I tried to check whether the installation went correctly, so I typed the command vainfo and got this in return:

libva info: VA-API version 0.39.3
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
libva info: Found init function __vaDriverInit_0_32
Segmentation fault (core dumped)

this is the ouptut of running gdb vainfo:

Reading symbols from /usr/local/bin/vainfo...done.
(gdb) run
Starting program: /usr/local/bin/vainfo
libva info: VA-API version 0.39.3
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
libva info: Found init function __vaDriverInit_0_32

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff4618b5f in __vaDriverInit_0_32 ()
   from /opt/intel/mediasdk/lib64/iHD_drv_video.so
Missing separate debuginfos, use: debuginfo-install glibc-2.17-106.el7_2.6.x86_64 libX11-1.6.3-2.el7.x86_64 libXau-1.0.8-2.1.el7.x86_64 libXext-1.3.3-3.el7.x86_64 libXfixes-5.0.1-2.1.el7.x86_64 libgcc-4.8.5-4.el7.x86_64 libpciaccess-0.13.4-2.el7.x86_64 libstdc++-4.8.5-4.el7.x86_64 libxcb-1.11-4.el7.x86_64
(gdb) bt
#0  0x00007ffff4618b5f in __vaDriverInit_0_32 ()
   from /opt/intel/mediasdk/lib64/iHD_drv_video.so
#1  0x00007ffff7bbe0c8 in va_openDriver (dpy=dpy@entry=0x611310,
    driver_name=<optimized out>) at va.c:301
#2  0x00007ffff7bbef8b in vaInitialize (dpy=dpy@entry=0x611310,
    major_version=major_version@entry=0x7fffffffdd30,
    minor_version=minor_version@entry=0x7fffffffdd34) at va.c:563
#3  0x0000000000400fe0 in main (argc=1, argv=0x7fffffffde88) at vainfo.c:120
(gdb)

Any help would be much appreciated. Thanks!

[gy__ln]

hi yair.s

    I use libva directly ,and i use  libva-intel-driver , so when I use "vainfo", it open i965_drv_video.so , it's correct. 

    iHD_drv_video is a closed source,and libva-intel-driver is open source, do you know the diffience between these two driver?? 

Best regard

[Mark_L_Intel1]

Hi yair.s

This looks like an installation error, from your error message, I can see iHD driver is called correctly from libVA so it might caused by KMD installation error, for the closed i915 driver, we do a kernel patch in the installation process. unfortunately our script doesn't show error message in a good way. If you go back to check the process when it does the kernel patch.

To gy, although both drivers uses hardware QSV functions, the difference is: the "closed driver"(i915) has the original/strong support from Intel graphic driver team. And you are partly wrong about "closed driver", it is open source now. You can find it in following URL:

https://github.com/Intel/media-driver

We also have an open source media project and you can build whole media stack based on following instructions:

https://software.intel.com/en-us/articles/build-and-debug-open-source-media-stack

I am not going to discuss more about the driver issue since this is yair's issue, please open a new post if you want to continue the discussion.

Mark