#653252 an application triggers a segfault in xserver when working with 3D

Package:
xserver-xorg
Source:
xorg
Description:
X.Org X server
Submitter:
Stanislav Maslovski
Date:
2011-12-28 10:15:08 UTC
Severity:
normal
#653252#5
Date:
2011-12-26 00:58:20 UTC
From:
To:
Here is the content of /var/log/Xorg.0.log.old with a backtrace at the
end. The application that triggers this segfault is proprietary and
closed source, therefore, there is no more information, unfortunately.

[    63.665]
X.Org X Server 1.11.2.902 (1.11.3 RC 2)
Release Date: 2011-12-09
[    63.665] X Protocol Version 11, Revision 0
[    63.665] Build Operating System: Linux 3.1.0-1-amd64 x86_64 Debian
[    63.665] Current Operating System: Linux kaiba 3.1.0-1-amd64 #1 SMP Sun Dec 11 20:36:41 UTC 2011 x86_64
[    63.665] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.1.0-1-amd64 root=UUID=8f8a210d-137f-4458-95aa-c42efdc719e5 ro quiet
[    63.665] Build Date: 10 December 2011  09:55:45PM
[    63.665] xorg-server 2:1.11.2.902-1 (Cyril Brulebois <kibi@debian.org>)
[    63.665] Current version of pixman: 0.24.0
[    63.665] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[    63.665] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    63.666] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Dec 26 03:39:30 2011
[    63.666] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    63.666] (==) No Layout section.  Using the first Screen section.
[    63.667] (==) No screen section available. Using defaults.
[    63.667] (**) |-->Screen "Default Screen Section" (0)
[    63.667] (**) |   |-->Monitor "<default monitor>"
[    63.667] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[    63.667] (==) Automatically adding devices
[    63.667] (==) Automatically enabling devices
[    63.667] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    63.667] 	Entry deleted from font path.
[    63.667] (WW) The directory "/usr/share/fonts/X11/Type1" does not exist.
[    63.667] 	Entry deleted from font path.
[    63.667] (==) FontPath set to:
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/100dpi/:unscaled,
	/usr/share/fonts/X11/75dpi/:unscaled,
	/usr/share/fonts/X11/100dpi,
	/usr/share/fonts/X11/75dpi,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
	built-ins
[    63.667] (==) ModulePath set to "/usr/lib/xorg/modules"
[    63.667] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[    63.667] (II) Loader magic: 0x7f99b9f45ae0
[    63.667] (II) Module ABI versions:
[    63.667] 	X.Org ANSI C Emulation: 0.4
[    63.667] 	X.Org Video Driver: 11.0
[    63.668] 	X.Org XInput driver : 13.0
[    63.668] 	X.Org Server Extension : 6.0
[    63.669] (--) PCI:*(0:0:2:0) 8086:0116:1028:0510 rev 9, Mem @ 0xf6800000/4194304, 0xe0000000/268435456, I/O @ 0x0000f000/64
[    63.669] (II) Open ACPI successful (/var/run/acpid.socket)
[    63.669] (II) LoadModule: "extmod"
[    63.670] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[    63.670] (II) Module extmod: vendor="X.Org Foundation"
[    63.670] 	compiled for 1.11.2.902, module version = 1.0.0
[    63.671] 	Module class: X.Org Server Extension
[    63.671] 	ABI class: X.Org Server Extension, version 6.0
[    63.671] (II) Loading extension SELinux
[    63.671] (II) Loading extension MIT-SCREEN-SAVER
[    63.671] (II) Loading extension XFree86-VidModeExtension
[    63.671] (II) Loading extension XFree86-DGA
[    63.671] (II) Loading extension DPMS
[    63.671] (II) Loading extension XVideo
[    63.671] (II) Loading extension XVideo-MotionCompensation
[    63.671] (II) Loading extension X-Resource
[    63.671] (II) LoadModule: "dbe"
[    63.671] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[    63.671] (II) Module dbe: vendor="X.Org Foundation"
[    63.671] 	compiled for 1.11.2.902, module version = 1.0.0
[    63.671] 	Module class: X.Org Server Extension
[    63.671] 	ABI class: X.Org Server Extension, version 6.0
[    63.671] (II) Loading extension DOUBLE-BUFFER
[    63.671] (II) LoadModule: "glx"
[    63.671] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    63.672] (II) Module glx: vendor="X.Org Foundation"
[    63.672] 	compiled for 1.11.2.902, module version = 1.0.0
[    63.672] 	ABI class: X.Org Server Extension, version 6.0
[    63.672] (==) AIGLX enabled
[    63.672] (II) Loading extension GLX
[    63.672] (II) LoadModule: "record"
[    63.672] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[    63.672] (II) Module record: vendor="X.Org Foundation"
[    63.672] 	compiled for 1.11.2.902, module version = 1.13.0
[    63.672] 	Module class: X.Org Server Extension
[    63.672] 	ABI class: X.Org Server Extension, version 6.0
[    63.672] (II) Loading extension RECORD
[    63.672] (II) LoadModule: "dri"
[    63.673] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[    63.673] (II) Module dri: vendor="X.Org Foundation"
[    63.673] 	compiled for 1.11.2.902, module version = 1.0.0
[    63.673] 	ABI class: X.Org Server Extension, version 6.0
[    63.673] (II) Loading extension XFree86-DRI
[    63.673] (II) LoadModule: "dri2"
[    63.673] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[    63.674] (II) Module dri2: vendor="X.Org Foundation"
[    63.674] 	compiled for 1.11.2.902, module version = 1.2.0
[    63.674] 	ABI class: X.Org Server Extension, version 6.0
[    63.674] (II) Loading extension DRI2
[    63.674] (==) Matched intel as autoconfigured driver 0
[    63.674] (==) Matched vesa as autoconfigured driver 1
[    63.674] (==) Matched fbdev as autoconfigured driver 2
[    63.674] (==) Assigned the driver to the xf86ConfigLayout
[    63.674] (II) LoadModule: "intel"
[    63.674] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[    63.675] (II) Module intel: vendor="X.Org Foundation"
[    63.675] 	compiled for 1.11.1.902, module version = 2.17.0
[    63.675] 	Module class: X.Org Video Driver
[    63.675] 	ABI class: X.Org Video Driver, version 11.0
[    63.675] (II) LoadModule: "vesa"
[    63.675] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    63.675] (II) Module vesa: vendor="X.Org Foundation"
[    63.675] 	compiled for 1.11.0, module version = 2.3.0
[    63.675] 	Module class: X.Org Video Driver
[    63.675] 	ABI class: X.Org Video Driver, version 11.0
[    63.675] (II) LoadModule: "fbdev"
[    63.676] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    63.676] (II) Module fbdev: vendor="X.Org Foundation"
[    63.676] 	compiled for 1.11.0, module version = 0.4.2
[    63.676] 	ABI class: X.Org Video Driver, version 11.0
[    63.676] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
	i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G,
	E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G,
	965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45,
	4 Series, G45/G43, Q45/Q43, G41, B43, B43, Clarkdale, Arrandale,
	Sandybridge Desktop (GT1), Sandybridge Desktop (GT2),
	Sandybridge Desktop (GT2+), Sandybridge Mobile (GT1),
	Sandybridge Mobile (GT2), Sandybridge Mobile (GT2+),
	Sandybridge Server, Ivybridge Mobile (GT1), Ivybridge Mobile (GT2),
	Ivybridge Desktop (GT1), Ivybridge Desktop (GT2), Ivybridge Server
[    63.677] (II) VESA: driver for VESA chipsets: vesa
[    63.677] (II) FBDEV: driver for framebuffer: fbdev
[    63.677] (--) using VT number 7

[    63.692] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[    63.692] (WW) Falling back to old probe method for vesa
[    63.692] (WW) Falling back to old probe method for fbdev
[    63.692] (II) Loading sub module "fbdevhw"
[    63.692] (II) LoadModule: "fbdevhw"
[    63.692] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[    63.692] (II) Module fbdevhw: vendor="X.Org Foundation"
[    63.692] 	compiled for 1.11.2.902, module version = 0.0.2
[    63.692] 	ABI class: X.Org Video Driver, version 11.0
[    63.693] drmOpenDevice: node name is /dev/dri/card0
[    63.693] drmOpenDevice: open result is 10, (OK)
[    63.693] drmOpenByBusid: Searching for BusID pci:0000:00:02.0
[    63.693] drmOpenDevice: node name is /dev/dri/card0
[    63.693] drmOpenDevice: open result is 10, (OK)
[    63.693] drmOpenByBusid: drmOpenMinor returns 10
[    63.693] drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
[    63.693] (II) intel(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[    63.693] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[    63.693] (==) intel(0): RGB weight 888
[    63.693] (==) intel(0): Default visual is TrueColor
[    63.693] (II) intel(0): Integrated Graphics Chipset: Intel(R) Sandybridge Mobile (GT2)
[    63.693] (--) intel(0): Chipset: "Sandybridge Mobile (GT2)"
[    63.693] (**) intel(0): Relaxed fencing enabled
[    63.693] (**) intel(0): Wait on SwapBuffers? enabled
[    63.693] (**) intel(0): Triple buffering? enabled
[    63.693] (**) intel(0): Framebuffer tiled
[    63.693] (**) intel(0): Pixmaps tiled
[    63.693] (**) intel(0): 3D buffers tiled
[    63.693] (**) intel(0): SwapBuffers wait enabled
[    63.693] (==) intel(0): video overlay key set to 0x101fe
[    63.694] (II) intel(0): Output LVDS1 has no monitor section
[    63.694] (II) intel(0): found backlight control interface /sys/class/backlight/acpi_video0
[    63.694] (II) intel(0): Output VGA1 has no monitor section
[    63.717] (II) intel(0): Output HDMI1 has no monitor section
[    63.764] (II) intel(0): Output DP1 has no monitor section
[    63.764] (II) intel(0): EDID for output LVDS1
[    63.764] (II) intel(0): Manufacturer: AUO  Model: 312c  Serial#: 0
[    63.764] (II) intel(0): Year: 2010  Week: 0
[    63.764] (II) intel(0): EDID Version: 1.4
[    63.764] (II) intel(0): Digital Display Input
[    63.764] (II) intel(0): 6 bits per channel
[    63.764] (II) intel(0): Digital interface is undefined
[    63.764] (II) intel(0): Max Image Size [cm]: horiz.: 29  vert.: 16
[    63.764] (II) intel(0): Gamma: 2.20
[    63.764] (II) intel(0): No DPMS capabilities specified
[    63.764] (II) intel(0): Supported color encodings: RGB 4:4:4
[    63.764] (II) intel(0): First detailed timing is preferred mode
[    63.764] (II) intel(0): Preferred mode is native pixel format and refresh rate
[    63.764] (II) intel(0): redX: 0.590 redY: 0.345   greenX: 0.325 greenY: 0.540
[    63.764] (II) intel(0): blueX: 0.150 blueY: 0.145   whiteX: 0.313 whiteY: 0.329
[    63.764] (II) intel(0): Manufacturer's mask: 0
[    63.764] (II) intel(0): Supported detailed timing:
[    63.764] (II) intel(0): clock: 70.5 MHz   Image Size:  293 x 164 mm
[    63.764] (II) intel(0): h_active: 1366  h_sync: 1414  h_sync_end 1446 h_blank_end 1468 h_border: 0
[    63.764] (II) intel(0): v_active: 768  v_sync: 771  v_sync_end 777 v_blanking: 800 v_border: 0
[    63.764] (II) intel(0): Supported detailed timing:
[    63.764] (II) intel(0): clock: 70.5 MHz   Image Size:  293 x 164 mm
[    63.764] (II) intel(0): h_active: 1366  h_sync: 1414  h_sync_end 1446 h_blank_end 1730 h_border: 0
[    63.764] (II) intel(0): v_active: 768  v_sync: 771  v_sync_end 777 v_blanking: 1018 v_border: 0
[    63.764] (II) intel(0):  WJH2R€B133XW3
[    63.764] (II) intel(0): Unknown vendor-specific block 0
[    63.764] (II) intel(0): EDID (in hex):
[    63.764] (II) intel(0): 	00ffffffffffff0006af2c3100000000
[    63.764] (II) intel(0): 	00140104901d10780215859758538a26
[    63.764] (II) intel(0): 	25505400000001010101010101010101
[    63.764] (II) intel(0): 	0101010101018a1b5666500020303020
[    63.764] (II) intel(0): 	360025a41000001a8a1b566c5100fa30
[    63.764] (II) intel(0): 	3020360025a41000001a000000fe0057
[    63.764] (II) intel(0): 	4a483252804231333358573300000000
[    63.765] (II) intel(0): 	00004121960111000001010a2020006e
[    63.765] (II) intel(0): EDID vendor "AUO", prod id 12588
[    63.765] (II) intel(0): Printing DDC gathered Modelines:
[    63.765] (II) intel(0): Modeline "1366x768"x0.0   70.50  1366 1414 1446 1468  768 771 777 800 +hsync -vsync (48.0 kHz)
[    63.765] (II) intel(0): Modeline "1366x768"x0.0   70.50  1366 1414 1446 1730  768 771 777 1018 +hsync -vsync (40.8 kHz)
[    63.765] (II) intel(0): Not using default mode "320x240" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "512x384" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "640x480" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "640x512" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "800x600" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "896x672" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "928x696" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "960x720" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "576x432" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "700x525" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "720x450" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "800x512" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "960x540" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "960x600" (doublescan mode not supported)
[    63.765] (II) intel(0): Not using default mode "1024x768" (doublescan mode not supported)
[    63.765] (II) intel(0): Printing probed modes for output LVDS1
[    63.765] (II) intel(0): Modeline "1366x768"x60.0   70.50  1366 1414 1446 1468  768 771 777 800 +hsync -vsync (48.0 kHz)
[    63.765] (II) intel(0): Modeline "1366x768"x40.0   70.50  1366 1414 1446 1730  768 771 777 1018 +hsync -vsync (40.8 kHz)
[    63.765] (II) intel(0): Modeline "1360x768"x59.8   84.75  1360 1432 1568 1776  768 771 781 798 -hsync +vsync (47.7 kHz)
[    63.765] (II) intel(0): Modeline "1360x768"x60.0   72.00  1360 1408 1440 1520  768 771 781 790 +hsync -vsync (47.4 kHz)
[    63.765] (II) intel(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
[    63.765] (II) intel(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[    63.765] (II) intel(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz)
[    63.766] (II) intel(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[    63.766] (II) intel(0): EDID for output VGA1
[    63.788] (II) intel(0): EDID for output HDMI1
[    63.836] (II) intel(0): EDID for output DP1
[    63.836] (II) intel(0): Output LVDS1 connected
[    63.836] (II) intel(0): Output VGA1 disconnected
[    63.836] (II) intel(0): Output HDMI1 disconnected
[    63.836] (II) intel(0): Output DP1 disconnected
[    63.836] (II) intel(0): Using exact sizes for initial modes
[    63.836] (II) intel(0): Output LVDS1 using initial mode 1366x768
[    63.836] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[    63.836] (II) intel(0): Kernel page flipping support detected, enabling
[    63.836] (**) intel(0): Display dimensions: (290, 160) mm
[    63.836] (**) intel(0): DPI set to (119, 121)
[    63.836] (II) Loading sub module "fb"
[    63.836] (II) LoadModule: "fb"
[    63.836] (II) Loading /usr/lib/xorg/modules/libfb.so
[    63.836] (II) Module fb: vendor="X.Org Foundation"
[    63.836] 	compiled for 1.11.2.902, module version = 1.0.0
[    63.837] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    63.837] (II) Loading sub module "dri2"
[    63.837] (II) LoadModule: "dri2"
[    63.837] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[    63.837] (II) Module dri2: vendor="X.Org Foundation"
[    63.837] 	compiled for 1.11.2.902, module version = 1.2.0
[    63.837] 	ABI class: X.Org Server Extension, version 6.0
[    63.837] (II) UnloadModule: "vesa"
[    63.837] (II) Unloading vesa
[    63.837] (II) UnloadModule: "fbdev"
[    63.837] (II) Unloading fbdev
[    63.837] (II) UnloadModule: "fbdevhw"
[    63.837] (II) Unloading fbdevhw
[    63.837] (==) Depth 24 pixmap format is 32 bpp
[    63.837] (II) intel(0): [DRI2] Setup complete
[    63.837] (II) intel(0): [DRI2]   DRI driver: i965
[    63.837] (II) intel(0): Allocated new frame buffer 1408x768 stride 5632, tiled
[    63.839] (II) UXA(0): Driver registered support for the following operations:
[    63.839] (II)         solid
[    63.839] (II)         copy
[    63.839] (II)         composite (RENDER acceleration)
[    63.839] (II)         put_image
[    63.839] (II)         get_image
[    63.839] (==) intel(0): Backing store disabled
[    63.839] (==) intel(0): Silken mouse enabled
[    63.839] (II) intel(0): Initializing HW Cursor
[    63.904] (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[    63.905] (==) intel(0): DPMS enabled
[    63.905] (==) intel(0): Intel XvMC decoder enabled
[    63.905] (II) intel(0): Set up textured video
[    63.905] (II) intel(0): [XvMC] xvmc_vld driver initialized.
[    63.905] (II) intel(0): direct rendering: DRI2 Enabled
[    63.905] (==) intel(0): hotplug detection: "enabled"
[    63.905] (--) RandR disabled
[    63.905] (II) Initializing built-in extension Generic Event Extension
[    63.905] (II) Initializing built-in extension SHAPE
[    63.905] (II) Initializing built-in extension MIT-SHM
[    63.905] (II) Initializing built-in extension XInputExtension
[    63.905] (II) Initializing built-in extension XTEST
[    63.905] (II) Initializing built-in extension BIG-REQUESTS
[    63.905] (II) Initializing built-in extension SYNC
[    63.905] (II) Initializing built-in extension XKEYBOARD
[    63.905] (II) Initializing built-in extension XC-MISC
[    63.905] (II) Initializing built-in extension SECURITY
[    63.905] (II) Initializing built-in extension XINERAMA
[    63.905] (II) Initializing built-in extension XFIXES
[    63.905] (II) Initializing built-in extension RENDER
[    63.905] (II) Initializing built-in extension RANDR
[    63.906] (II) Initializing built-in extension COMPOSITE
[    63.906] (II) Initializing built-in extension DAMAGE
[    63.906] (II) SELinux: Disabled on system
[    63.921] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer
[    63.921] (II) AIGLX: enabled GLX_INTEL_swap_event
[    63.921] (II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control
[    63.921] (II) AIGLX: enabled GLX_SGI_make_current_read
[    63.921] (II) AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects
[    63.921] (II) AIGLX: Loaded and initialized i965
[    63.921] (II) GLX: Initialized DRI2 GL provider for screen 0
[    63.921] (II) intel(0): Setting screen physical size to 361 x 203
[    63.955] (II) config/udev: Adding input device Power Button (/dev/input/event4)
[    63.955] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[    63.955] (II) LoadModule: "evdev"
[    63.955] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.956] (II) Module evdev: vendor="X.Org Foundation"
[    63.956] 	compiled for 1.11.0, module version = 2.6.0
[    63.956] 	Module class: X.Org XInput Driver
[    63.956] 	ABI class: X.Org XInput driver, version 13.0
[    63.956] (II) Using input driver 'evdev' for 'Power Button'
[    63.956] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.956] (**) Power Button: always reports core events
[    63.956] (**) Power Button: Device: "/dev/input/event4"
[    63.956] (--) Power Button: Found keys
[    63.956] (II) Power Button: Configuring as keyboard
[    63.956] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input4/event4"
[    63.956] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
[    63.956] (**) Option "xkb_rules" "evdev"
[    63.956] (**) Option "xkb_model" "pc105"
[    63.956] (**) Option "xkb_layout" "us,ru"
[    63.956] (**) Option "xkb_variant" ","
[    63.956] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    63.971] (II) config/udev: Adding input device Video Bus (/dev/input/event9)
[    63.971] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
[    63.971] (II) Using input driver 'evdev' for 'Video Bus'
[    63.971] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.971] (**) Video Bus: always reports core events
[    63.971] (**) Video Bus: Device: "/dev/input/event9"
[    63.971] (--) Video Bus: Found keys
[    63.971] (II) Video Bus: Configuring as keyboard
[    63.971] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input9/event9"
[    63.971] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 7)
[    63.971] (**) Option "xkb_rules" "evdev"
[    63.971] (**) Option "xkb_model" "pc105"
[    63.971] (**) Option "xkb_layout" "us,ru"
[    63.971] (**) Option "xkb_variant" ","
[    63.971] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    63.972] (II) config/udev: Adding input device Power Button (/dev/input/event2)
[    63.972] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[    63.972] (II) Using input driver 'evdev' for 'Power Button'
[    63.972] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.972] (**) Power Button: always reports core events
[    63.972] (**) Power Button: Device: "/dev/input/event2"
[    63.972] (--) Power Button: Found keys
[    63.972] (II) Power Button: Configuring as keyboard
[    63.972] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input2/event2"
[    63.972] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 8)
[    63.972] (**) Option "xkb_rules" "evdev"
[    63.972] (**) Option "xkb_model" "pc105"
[    63.972] (**) Option "xkb_layout" "us,ru"
[    63.972] (**) Option "xkb_variant" ","
[    63.972] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    63.972] (II) config/udev: Adding input device Lid Switch (/dev/input/event1)
[    63.972] (II) No input driver/identifier specified (ignoring)
[    63.972] (II) config/udev: Adding input device Sleep Button (/dev/input/event3)
[    63.972] (**) Sleep Button: Applying InputClass "evdev keyboard catchall"
[    63.972] (II) Using input driver 'evdev' for 'Sleep Button'
[    63.972] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.972] (**) Sleep Button: always reports core events
[    63.972] (**) Sleep Button: Device: "/dev/input/event3"
[    63.972] (--) Sleep Button: Found keys
[    63.972] (II) Sleep Button: Configuring as keyboard
[    63.972] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input3/event3"
[    63.972] (II) XINPUT: Adding extended input device "Sleep Button" (type: KEYBOARD, id 9)
[    63.972] (**) Option "xkb_rules" "evdev"
[    63.972] (**) Option "xkb_model" "pc105"
[    63.972] (**) Option "xkb_layout" "us,ru"
[    63.972] (**) Option "xkb_variant" ","
[    63.972] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    63.973] (II) config/udev: Adding input device Laptop_Integrated_Webcam_HD (/dev/input/event12)
[    63.973] (**) Laptop_Integrated_Webcam_HD: Applying InputClass "evdev keyboard catchall"
[    63.973] (II) Using input driver 'evdev' for 'Laptop_Integrated_Webcam_HD'
[    63.973] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.973] (**) Laptop_Integrated_Webcam_HD: always reports core events
[    63.973] (**) Laptop_Integrated_Webcam_HD: Device: "/dev/input/event12"
[    63.973] (--) Laptop_Integrated_Webcam_HD: Found keys
[    63.973] (II) Laptop_Integrated_Webcam_HD: Configuring as keyboard
[    63.973] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.5/3-1.5:1.0/input/input12/event12"
[    63.973] (II) XINPUT: Adding extended input device "Laptop_Integrated_Webcam_HD" (type: KEYBOARD, id 10)
[    63.973] (**) Option "xkb_rules" "evdev"
[    63.973] (**) Option "xkb_model" "pc105"
[    63.973] (**) Option "xkb_layout" "us,ru"
[    63.973] (**) Option "xkb_variant" ","
[    63.973] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    63.973] (II) config/udev: Adding input device HDA Digital PCBeep (/dev/input/event10)
[    63.973] (II) No input driver/identifier specified (ignoring)
[    63.973] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP (/dev/input/event11)
[    63.973] (II) No input driver/identifier specified (ignoring)
[    63.973] (II) config/udev: Adding input device Logitech USB Laser Mouse (/dev/input/event8)
[    63.973] (**) Logitech USB Laser Mouse: Applying InputClass "evdev pointer catchall"
[    63.973] (II) Using input driver 'evdev' for 'Logitech USB Laser Mouse'
[    63.973] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.973] (**) Logitech USB Laser Mouse: always reports core events
[    63.973] (**) Logitech USB Laser Mouse: Device: "/dev/input/event8"
[    63.973] (--) Logitech USB Laser Mouse: Found 3 mouse buttons
[    63.973] (--) Logitech USB Laser Mouse: Found scroll wheel(s)
[    63.973] (--) Logitech USB Laser Mouse: Found relative axes
[    63.973] (--) Logitech USB Laser Mouse: Found x and y relative axes
[    63.974] (II) Logitech USB Laser Mouse: Configuring as mouse
[    63.974] (II) Logitech USB Laser Mouse: Adding scrollwheel support
[    63.974] (**) Logitech USB Laser Mouse: YAxisMapping: buttons 4 and 5
[    63.974] (**) Logitech USB Laser Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[    63.974] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1c.4/0000:0b:00.0/usb1/1-2/1-2:1.0/input/input8/event8"
[    63.974] (II) XINPUT: Adding extended input device "Logitech USB Laser Mouse" (type: MOUSE, id 11)
[    63.974] (II) Logitech USB Laser Mouse: initialized for relative axes.
[    63.974] (**) Logitech USB Laser Mouse: (accel) keeping acceleration scheme 1
[    63.974] (**) Logitech USB Laser Mouse: (accel) acceleration profile 0
[    63.974] (**) Logitech USB Laser Mouse: (accel) acceleration factor: 2.000
[    63.974] (**) Logitech USB Laser Mouse: (accel) acceleration threshold: 4
[    63.974] (II) config/udev: Adding input device Logitech USB Laser Mouse (/dev/input/mouse1)
[    63.974] (II) No input driver/identifier specified (ignoring)
[    63.974] (II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event0)
[    63.974] (**) AT Translated Set 2 keyboard: Applying InputClass "evdev keyboard catchall"
[    63.974] (II) Using input driver 'evdev' for 'AT Translated Set 2 keyboard'
[    63.974] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    63.974] (**) AT Translated Set 2 keyboard: always reports core events
[    63.974] (**) AT Translated Set 2 keyboard: Device: "/dev/input/event0"
[    63.974] (--) AT Translated Set 2 keyboard: Found keys
[    63.974] (II) AT Translated Set 2 keyboard: Configuring as keyboard
[    63.974] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio0/input/input0/event0"
[    63.974] (II) XINPUT: Adding extended input device "AT Translated Set 2 keyboard" (type: KEYBOARD, id 12)
[    63.974] (**) Option "xkb_rules" "evdev"
[    63.974] (**) Option "xkb_model" "pc105"
[    63.974] (**) Option "xkb_layout" "us,ru"
[    63.974] (**) Option "xkb_variant" ","
[    63.974] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    63.974] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event7)
[    63.974] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "evdev touchpad catchall"
[    63.974] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
[    63.974] (II) LoadModule: "synaptics"
[    63.975] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
[    63.975] (II) Module synaptics: vendor="X.Org Foundation"
[    63.975] 	compiled for 1.11.2.902, module version = 1.5.0
[    63.975] 	Module class: X.Org XInput Driver
[    63.975] 	ABI class: X.Org XInput driver, version 13.0
[    63.975] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'
[    63.975] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
[    63.975] (**) SynPS/2 Synaptics TouchPad: always reports core events
[    63.975] (**) Option "Device" "/dev/input/event7"
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: x-axis range 1472 - 5792
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: y-axis range 1408 - 4970
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: pressure range 0 - 255
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: finger width range 0 - 0
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: buttons: left right double triple
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: Vendor 0x2 Product 0x7
[    64.128] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[    64.128] (**) SynPS/2 Synaptics TouchPad: always reports core events
[    64.128] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input7/event7"
[    64.128] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD, id 13)
[    64.128] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MinSpeed is now constant deceleration 2.5
[    64.128] (**) synaptics: SynPS/2 Synaptics TouchPad: MaxSpeed is now 1.75
[    64.128] (**) synaptics: SynPS/2 Synaptics TouchPad: AccelFactor is now 0.036
[    64.129] (**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration scheme 1
[    64.129] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration profile 1
[    64.129] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration factor: 2.000
[    64.129] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration threshold: 4
[    64.129] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[    64.129] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/mouse0)
[    64.129] (**) SynPS/2 Synaptics TouchPad: Ignoring device from InputClass "touchpad ignore duplicates"
[    64.130] (II) config/udev: Adding input device PC Speaker (/dev/input/event5)
[    64.130] (II) No input driver/identifier specified (ignoring)
[    64.131] (II) config/udev: Adding input device ACPI Virtual Keyboard Device (/dev/input/event13)
[    64.131] (**) ACPI Virtual Keyboard Device: Applying InputClass "evdev keyboard catchall"
[    64.131] (II) Using input driver 'evdev' for 'ACPI Virtual Keyboard Device'
[    64.131] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    64.131] (**) ACPI Virtual Keyboard Device: always reports core events
[    64.131] (**) ACPI Virtual Keyboard Device: Device: "/dev/input/event13"
[    64.131] (--) ACPI Virtual Keyboard Device: Found keys
[    64.131] (II) ACPI Virtual Keyboard Device: Configuring as keyboard
[    64.131] (**) Option "config_info" "udev:/sys/devices/virtual/input/input13/event13"
[    64.131] (II) XINPUT: Adding extended input device "ACPI Virtual Keyboard Device" (type: KEYBOARD, id 14)
[    64.131] (**) Option "xkb_rules" "evdev"
[    64.131] (**) Option "xkb_model" "pc105"
[    64.131] (**) Option "xkb_layout" "us,ru"
[    64.131] (**) Option "xkb_variant" ","
[    64.131] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    64.132] (II) config/udev: Adding input device Dell WMI hotkeys (/dev/input/event6)
[    64.132] (**) Dell WMI hotkeys: Applying InputClass "evdev keyboard catchall"
[    64.132] (II) Using input driver 'evdev' for 'Dell WMI hotkeys'
[    64.132] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[    64.133] (**) Dell WMI hotkeys: always reports core events
[    64.133] (**) Dell WMI hotkeys: Device: "/dev/input/event6"
[    64.133] (--) Dell WMI hotkeys: Found keys
[    64.133] (II) Dell WMI hotkeys: Configuring as keyboard
[    64.133] (**) Option "config_info" "udev:/sys/devices/virtual/input/input6/event6"
[    64.133] (II) XINPUT: Adding extended input device "Dell WMI hotkeys" (type: KEYBOARD, id 15)
[    64.133] (**) Option "xkb_rules" "evdev"
[    64.133] (**) Option "xkb_model" "pc105"
[    64.133] (**) Option "xkb_layout" "us,ru"
[    64.133] (**) Option "xkb_variant" ","
[    64.133] (**) Option "xkb_options" "grp:caps_toggle,grp_led:scroll"
[    64.260] (II) intel(0): EDID vendor "AUO", prod id 12588
[    64.260] (II) intel(0): Printing DDC gathered Modelines:
[    64.260] (II) intel(0): Modeline "1366x768"x0.0   70.50  1366 1414 1446 1468  768 771 777 800 +hsync -vsync (48.0 kHz)
[    64.260] (II) intel(0): Modeline "1366x768"x0.0   70.50  1366 1414 1446 1730  768 771 777 1018 +hsync -vsync (40.8 kHz)
[   338.143]
Backtrace:
[   338.144] 0: X (xorg_backtrace+0x26) [0x7f99b9cde9b6]
[   338.144] 1: X (0x7f99b9b5a000+0x188619) [0x7f99b9ce2619]
[   338.144] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f99b8e83000+0xf030) [0x7f99b8e92030]
[   338.144] 3: /usr/lib/x86_64-linux-gnu/dri/i965_dri.so (0x7f99b4b70000+0x4b99c) [0x7f99b4bbb99c]
[   338.144] 4: /usr/lib/xorg/modules/extensions/libglx.so (0x7f99b65fc000+0x41951) [0x7f99b663d951]
[   338.144] 5: /usr/lib/xorg/modules/extensions/libglx.so (0x7f99b65fc000+0x34da8) [0x7f99b6630da8]
[   338.144] 6: /usr/lib/xorg/modules/extensions/libglx.so (0x7f99b65fc000+0x37a09) [0x7f99b6633a09]
[   338.144] 7: X (0x7f99b9b5a000+0x51fc9) [0x7f99b9babfc9]
[   338.144] 8: X (0x7f99b9b5a000+0x4122a) [0x7f99b9b9b22a]
[   338.144] 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f99b7baeead]
[   338.144] 10: X (0x7f99b9b5a000+0x4151d) [0x7f99b9b9b51d]
[   338.144] Segmentation fault at address 0x1665c
[   338.144]
Fatal server error:
[   338.144] Caught signal 11 (Segmentation fault). Server aborting
[   338.144]
[   338.144]
Please consult the The X.Org Foundation support
	 at http://wiki.x.org
 for help.
[   338.144] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   338.144]
[   338.153] (II) Power Button: Close
[   338.153] (II) UnloadModule: "evdev"
[   338.153] (II) Unloading evdev
[   338.153] (II) Video Bus: Close
[   338.153] (II) UnloadModule: "evdev"
[   338.153] (II) Unloading evdev
[   338.153] (II) Power Button: Close
[   338.153] (II) UnloadModule: "evdev"
[   338.153] (II) Unloading evdev
[   338.156] (II) Sleep Button: Close
[   338.156] (II) UnloadModule: "evdev"
[   338.156] (II) Unloading evdev
[   338.156] (II) Laptop_Integrated_Webcam_HD: Close
[   338.156] (II) UnloadModule: "evdev"
[   338.156] (II) Unloading evdev
[   338.164] (II) Logitech USB Laser Mouse: Close
[   338.164] (II) UnloadModule: "evdev"
[   338.164] (II) Unloading evdev
[   338.164] (II) AT Translated Set 2 keyboard: Close
[   338.164] (II) UnloadModule: "evdev"
[   338.164] (II) Unloading evdev
[   338.172] (II) UnloadModule: "synaptics"
[   338.172] (II) Unloading synaptics
[   338.172] (II) ACPI Virtual Keyboard Device: Close
[   338.172] (II) UnloadModule: "evdev"
[   338.172] (II) Unloading evdev
[   338.180] (II) Dell WMI hotkeys: Close
[   338.180] (II) UnloadModule: "evdev"
[   338.180] (II) Unloading evdev
[   338.180] (II) AIGLX: Suspending AIGLX clients for VT switch
[   338.244] Server terminated with error (1). Closing log file.
#653252#10
Date:
2011-12-26 11:35:51 UTC
From:
To:
Any chance you could get a backtrace from gdb? See
http://pkg-xorg.alioth.debian.org/howto/use-gdb.html for some
instructions.  Make sure to install xserver-xorg-core-dbg,
xserver-xorg-video-intel-dbg and libgl1-mesa-dri-dbg.

Cheers,
Julien
#653252#15
Date:
2011-12-27 01:31:08 UTC
From:
To:
I tried getting a core dump as explained there with adding -core
option to the X command line, but with no result (no core dump file
produced). I also played with ulimits (if that is related) in
/etc/security/limits.conf, and sysctl fs.suid_dumpable but again,
without any result.

Attaching gdb to a running X instance from a vt resulted in a lock of
the console, so that I had to hard reset the machine.

When I have time, I may try running gdb over ssh, but that requires
some more effort.
#653252#20
Date:
2011-12-28 10:12:47 UTC
From:
To:
backtrace. The segfault happens always at the address 0x1665c.

(gdb) bt full
#0  0x00007f2bf20a2405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f2bf20a5680 in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007f2bf41c573e in OsAbort () at ../../os/utils.c:1230
No locals.
#3  0x00007f2bf40c82ec in ddxGiveUp (error=EXIT_ERR_ABORT)
    at ../../../../hw/xfree86/common/xf86Init.c:936
        i = <optimized out>
#4  0x00007f2bf41ca5f2 in AbortServer () at ../../os/log.c:416
No locals.
#5  0x00007f2bf41ca7f5 in FatalError (f=0x7f2bf41f06b0 "Caught signal %d (%s). Server aborting\n")
    at ../../os/log.c:547
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff23471160,
            reg_save_area = 0x7fff234710a0}}
        beenhere = 1
#6  0x00007f2bf41c366e in OsSigHandler (sip=<optimized out>, signo=11, unused=<optimized out>)
    at ../../os/osinit.c:146
No locals.
#7  OsSigHandler (signo=11, sip=<optimized out>, unused=<optimized out>) at ../../os/osinit.c:108
No locals.
#8  <signal handler called>
No symbol table info available.
#9  intelDRI2Flush (drawable=0x7f2bfaa64aa0) at intel_screen.c:111
        ctx = <optimized out>
#10 0x00007f2bf0b1d951 in __glXDRIdrawableSwapBuffers (client=0x7f2bf531f580,
    drawable=0x7f2bf767c500) at ../../glx/glxdri2.c:215
        priv = 0x7f2bf767c500
        screen = 0x7f2bf4f554c0
        unused = 139826774013624
#11 0x00007f2bf0b10da8 in __glXDisp_SwapBuffers (cl=0x7f2bf531f6b8, pc=<optimized out>)
    at ../../glx/glxcmds.c:1583
        client = 0x7f2bf531f580
        req = <optimized out>
        tag = <optimized out>
        drawId = 20973401
        glxc = <optimized out>
        pGlxDraw = <optimized out>
        error = 32555
#12 0x00007f2bf0b13a09 in __glXDispatch (client=<optimized out>) at ../../glx/glxext.c:547
        rendering = <optimized out>
        stuff = 0x7f2bf70f2630
        opcode = <optimized out>
        proc = 0x7f2bf0b10cc0 <__glXDisp_SwapBuffers>
        cl = 0x7f2bf531f6b8
        retval = <optimized out>
#13 0x00007f2bf408cfc9 in Dispatch () at ../../dix/dispatch.c:432
        clientReady = 0x7f2bf5288c50
        result = <optimized out>
        client = 0x7f2bf531f580
        nready = 0
        icheck = 0x7f2bf4441af0
        start_tick = 60
#14 0x00007f2bf407c22a in main (argc=8, argv=<optimized out>, envp=<optimized out>)
    at ../../dix/main.c:287
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
(gdb) disas
Dump of assembler code for function raise:
   0x00007f2bf20a23d0 <+0>:	mov    %fs:0x2d4,%eax
   0x00007f2bf20a23d8 <+8>:	mov    %fs:0x2d0,%esi
   0x00007f2bf20a23e0 <+16>:	test   %esi,%esi
   0x00007f2bf20a23e2 <+18>:	jne    0x7f2bf20a2410 <raise+64>
   0x00007f2bf20a23e4 <+20>:	mov    $0xba,%eax
   0x00007f2bf20a23e9 <+25>:	syscall
   0x00007f2bf20a23eb <+27>:	mov    %eax,%esi
   0x00007f2bf20a23ed <+29>:	mov    %eax,%fs:0x2d0
   0x00007f2bf20a23f5 <+37>:	movslq %edi,%rdx
   0x00007f2bf20a23f8 <+40>:	movslq %esi,%rsi
   0x00007f2bf20a23fb <+43>:	movslq %eax,%rdi
   0x00007f2bf20a23fe <+46>:	mov    $0xea,%eax
   0x00007f2bf20a2403 <+51>:	syscall
=> 0x00007f2bf20a2405 <+53>:	cmp    $0xfffffffffffff000,%rax
   0x00007f2bf20a240b <+59>:	ja     0x7f2bf20a2422 <raise+82>
   0x00007f2bf20a240d <+61>:	repz retq
   0x00007f2bf20a240f <+63>:	nop
   0x00007f2bf20a2410 <+64>:	test   %eax,%eax
   0x00007f2bf20a2412 <+66>:	jg     0x7f2bf20a23f5 <raise+37>
   0x00007f2bf20a2414 <+68>:	test   $0x7fffffff,%eax
   0x00007f2bf20a2419 <+73>:	jne    0x7f2bf20a2432 <raise+98>
   0x00007f2bf20a241b <+75>:	mov    %esi,%eax
   0x00007f2bf20a241d <+77>:	nopl   (%rax)
   0x00007f2bf20a2420 <+80>:	jmp    0x7f2bf20a23f5 <raise+37>
   0x00007f2bf20a2422 <+82>:	mov    0x34b9ef(%rip),%rdx        # 0x7f2bf23ede18
   0x00007f2bf20a2429 <+89>:	neg    %eax
   0x00007f2bf20a242b <+91>:	mov    %eax,%fs:(%rdx)
   0x00007f2bf20a242e <+94>:	or     $0xffffffff,%eax
   0x00007f2bf20a2431 <+97>:	retq
   0x00007f2bf20a2432 <+98>:	neg    %eax
   0x00007f2bf20a2434 <+100>:	jmp    0x7f2bf20a23f5 <raise+37>
End of assembler dump.
(gdb) up 9
#9  intelDRI2Flush (drawable=0x7f2bfaa64aa0) at intel_screen.c:111
111	intel_screen.c: No such file or directory.
	in intel_screen.c
Dump of assembler code for function intelDRI2Flush:
   0x00007f2bef09b990 <+0>:	mov    0x571509(%rip),%rax        # 0x7f2bef60cea0
   0x00007f2bef09b997 <+7>:	push   %rbx
   0x00007f2bef09b998 <+8>:	mov    %fs:(%rax),%rbx
=> 0x00007f2bef09b99c <+12>:	cmpl   $0x3,0x1665c(%rbx)
   0x00007f2bef09b9a3 <+19>:	jg     0x7f2bef09b9b6 <intelDRI2Flush+38>
   0x00007f2bef09b9a5 <+21>:	mov    0x1e6c8(%rbx),%rax
   0x00007f2bef09b9ac <+28>:	test   %rax,%rax
   0x00007f2bef09b9af <+31>:	je     0x7f2bef09b9b6 <intelDRI2Flush+38>
   0x00007f2bef09b9b1 <+33>:	mov    %rbx,%rdi
   0x00007f2bef09b9b4 <+36>:	callq  *%rax
   0x00007f2bef09b9b6 <+38>:	cmpw   $0x0,0x1669c(%rbx)
   0x00007f2bef09b9be <+46>:	movb   $0x1,0x1e6b0(%rbx)
   0x00007f2bef09b9c5 <+53>:	jne    0x7f2bef09b9d0 <intelDRI2Flush+64>
   0x00007f2bef09b9c7 <+55>:	pop    %rbx
   0x00007f2bef09b9c8 <+56>:	retq
   0x00007f2bef09b9c9 <+57>:	nopl   0x0(%rax)
   0x00007f2bef09b9d0 <+64>:	mov    %rbx,%rdi
   0x00007f2bef09b9d3 <+67>:	lea    0x23496b(%rip),%rsi        # 0x7f2bef2d0345
   0x00007f2bef09b9da <+74>:	mov    $0x75,%edx
   0x00007f2bef09b9df <+79>:	pop    %rbx
   0x00007f2bef09b9e0 <+80>:	jmpq   0x7f2bef08e820 <_intel_batchbuffer_flush>
End of assembler dump.
(gdb) p /x $rbx
$1 = 0x0
(gdb) p /x *0x1665c
Cannot access memory at address 0x1665c