Video issues with Intel GMA X3500

Hi,

since a few weeks, I see issues on my Intel G35 chipset which includes an Intel GMA X3500 and Jessie. It might be a regression of a recent security update, since I am not aware of any changes on the system which could have this kind of impact (and an imagemagick security update caused an unrelated regression recently on my system)

I see firefox sometimes crashing, vlc has issues and even glxgears crashes (though this seems to be account specific).

I think these are all i965 issues:

blackbox:~# dmesg |grep i965
[  307.109334] vlc[4048]: segfault at 1a4 ip ad4fbac5 sp af5e0d20 error 4 in i965_dri.so[ad1a1000+5aa000]
[  346.700733] vlc[4156]: segfault at 1a4 ip acbb8ac5 sp ad20ad20 error 4 in i965_dri.so[ac85e000+5aa000]
[  363.487880] vlc[4187]: segfault at 1a4 ip ace9fac5 sp ae7cfd20 error 4 in i965_dri.so[acb45000+5aa000]
[  800.019953] vlc[5178]: segfault at 1a4 ip acb62ac5 sp ad1c2d20 error 4 in i965_dri.so[ac808000+5aa000]
[  808.697777] vlc[5203]: segfault at 1a4 ip ace8aac5 sp ad2ccd20 error 4 in i965_dri.so[acb30000+5aa000]
[ 1140.755863] vlc[6095]: segfault at 1a4 ip aceb1ac5 sp ad2f3d20 error 4 in i965_dri.so[acb57000+5aa000]
[ 1162.505685] vlc[6165]: segfault at 1a4 ip ace5eac5 sp ad4bdd20 error 4 in i965_dri.so[acb04000+5aa000]
[ 1408.258640] vlc[6561]: segfault at 1a4 ip acdfeac5 sp ad4f1d20 error 4 in i965_dri.so[acaa4000+5aa000]
[ 1429.558244] vlc[6601]: segfault at 1a4 ip acef1ac5 sp ae856d20 error 4 in i965_dri.so[acb97000+5aa000]
[ 1531.107137] vlc[6921]: segfault at 1a4 ip acd99ac5 sp ad48cd20 error 4 in i965_dri.so[aca3f000+5aa000]
[ 1566.742526] vlc[6998]: segfault at 1a4 ip ad4c6ac5 sp af8fdd20 error 4 in i965_dri.so[ad16c000+5aa000]
[ 2008.741584] vlc[8034]: segfault at 1a4 ip ad8fcac5 sp afd8ed20 error 4 in i965_dri.so[ad5a2000+5aa000]
[ 2310.052161] vlc[8557]: segfault at 1a4 ip ace6cac5 sp ad55fd20 error 4 in i965_dri.so[acb12000+5aa000]
[ 3991.009902] vlc[8210]: segfault at 1a4 ip ad79eac5 sp b00e0d20 error 4 in i965_dri.so[ad444000+5aa000]
[ 4002.415664] vlc[8237]: segfault at 1a4 ip ad902ac5 sp ad50bd20 error 4 in i965_dri.so[ad5a8000+5aa000]
[ 4059.571327] vlc[8326]: segfault at 1a4 ip a89a1ac5 sp b060ad20 error 4 in i965_dri.so[a8647000+5aa000]
[ 4726.095805] glxgears[10242]: segfault at 1a4 ip b6d08ac5 sp bf896250 error 4 in i965_dri.so[b69ae000+5aa000]
[ 4733.556073] glxgears[10252]: segfault at 1a4 ip b6d1eac5 sp bfbe2e20 error 4 in i965_dri.so[b69c4000+5aa000]
[ 4749.267757] glxgears[10278]: segfault at 1a4 ip b6d47ac5 sp bf834770 error 4 in i965_dri.so[b69ed000+5aa000]
[ 5697.247202] glxgears[13248]: segfault at 1a4 ip b6d50ac5 sp bfeff060 error 4 in i965_dri.so[b69f6000+5aa000]
blackbox:~# 


Since glxgears seems to be the simplest application, I start to look into this: backtrace from glxgears:

(gdb) run
Starting program: /usr/bin/glxgears 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.

Program received signal SIGSEGV, Segmentation fault.
0xb7578ac5 in ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so
(gdb) bt
#0  0xb7578ac5 in ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so
#1  0xb7528a29 in ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so
#2  0xb725899d in ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so
#3  0x08049f2d in ?? ()
#4  0x080496d4 in ?? ()
#5  0xb7ad8a63 in __libc_start_main (main=0x80491d0, argc=1, argv=0xbffff214, init=0x804b2b0, fini=0x804b320, rtld_fini=0xb7fedc50 <_dl_fini>, 
    stack_end=0xbffff20c) at libc-start.c:287
#6  0x08049d1c in ?? ()
(gdb) 


The standard packages from Jessie are installed

rd@blackbox:~/tmp.nobackup$ apt-cache policy intel-gpu-tools
intel-gpu-tools:
  Installed: 1.8-1
  Candidate: 1.8-1
  Version table:
     1.16-1 0
        400 http://ftp-stud.fht-esslingen.de/debian/ stretch/main i386 Packages
        300 http://ftp-stud.fht-esslingen.de/debian/ sid/main i386 Packages
     1.16-1~bpo8+1 0
        450 http://ftp-stud.fht-esslingen.de/debian/ jessie-backports/main i386 Packages
 *** 1.8-1 0
        500 http://ftp-stud.fht-esslingen.de/debian/ jessie/main i386 Packages
        500 http://snapshot.debian.org/archive/debian/20160901T042215Z/ jessie/main i386 Packages
        100 /var/lib/dpkg/status
rd@blackbox:~/tmp.nobackup$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installed: 2:2.21.15-2+b2
  Candidate: 2:2.21.15-2+b2
  Version table:
     2:2.99.917+git20160706-1 0
        400 http://ftp-stud.fht-esslingen.de/debian/ stretch/main i386 Packages
        300 http://ftp-stud.fht-esslingen.de/debian/ sid/main i386 Packages
     2:2.99.917+git20160706-1~bpo8+1 0
        450 http://ftp-stud.fht-esslingen.de/debian/ jessie-backports/main i386 Packages
 *** 2:2.21.15-2+b2 0
        500 http://ftp-stud.fht-esslingen.de/debian/ jessie/main i386 Packages
        500 http://snapshot.debian.org/archive/debian/20160901T042215Z/ jessie/main i386 Packages
        100 /var/lib/dpkg/status
rd@blackbox:~/tmp.nobackup$ apt-cache policy libdrm-intel1
libdrm-intel1:
  Installed: 2.4.58-2
  Candidate: 2.4.58-2
  Version table:
     2.4.70-1 0
        400 http://ftp-stud.fht-esslingen.de/debian/ stretch/main i386 Packages
        300 http://ftp-stud.fht-esslingen.de/debian/ sid/main i386 Packages
     2.4.70-1~bpo8+1 0
        450 http://ftp-stud.fht-esslingen.de/debian/ jessie-backports/main i386 Packages
 *** 2.4.58-2 0
        500 http://ftp-stud.fht-esslingen.de/debian/ jessie/main i386 Packages
        500 http://snapshot.debian.org/archive/debian/20160901T042215Z/ jessie/main i386 Packages
        100 /var/lib/dpkg/status
rd@blackbox:~/tmp.nobackup$ 
blackbox:~# apt-cache policy libgl1-mesa-dri
libgl1-mesa-dri:
  Installiert:           10.3.2-1+deb8u1
  Installationskandidat: 10.3.2-1+deb8u1
  Versionstabelle:
     12.0.3-1 0
        400 http://ftp-stud.fht-esslingen.de/debian/ stretch/main i386 Packages
        300 http://ftp-stud.fht-esslingen.de/debian/ sid/main i386 Packages
     12.0.3-1~bpo8+1 0
        450 http://ftp-stud.fht-esslingen.de/debian/ jessie-backports/main i386 Packages
 *** 10.3.2-1+deb8u1 0
        500 http://ftp-stud.fht-esslingen.de/debian/ jessie/main i386 Packages
        500 http://snapshot.debian.org/archive/debian/20160901T042215Z/ jessie/main i386 Packages
        100 /var/lib/dpkg/status
blackbox:~# 


Many thanks
Rainer