Bug#814722: Some new info

2016-08-18 Thread Julien Cristau 
Control: severity -1 important

On Sat, Feb 20, 2016 at 18:43:08 -0300, Fabián Inostroza wrote:

> After the update of xserver-common and xserver-xorg-core from 1.18.0-3 to
> 1.18.1-1 things have gone better, X stills crash sometimes but no so
> repeteadly.
> Also I have found that the crashes happens when I'm using MATLAB (2013a),
> while maximizing window or changing tab in the editor.
> 
[...]
> [   323.935] (EE) Backtrace:
> [   323.935] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4e) [0x562710a8db2e]
> [   323.935] (EE) 1: /usr/lib/xorg/Xorg (0x5627108d8000+0x1b9eb9) 
> [0x562710a91eb9]
> [   323.935] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f89ec772000+0x33590) 
> [0x7f89ec7a5590]
> [   323.935] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7f89ec772000+0x79d7c) 
> [0x7f89ec7ebd7c]
> [   323.935] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (realloc+0xf0) 
> [0x7f89ec7ed190]
> [   323.935] (EE) 5: /usr/lib/xorg/Xorg (ReadRequestFromClient+0x4f0) 
> [0x562710a90aa0]
> [   323.935] (EE) 6: /usr/lib/xorg/Xorg (0x5627108d8000+0x53a21) 
> [0x56271092ba21]
> [   323.936] (EE) 7: /usr/lib/xorg/Xorg (0x5627108d8000+0x57af3) 
> [0x56271092faf3]
> [   323.936] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) 
> [0x7f89ec792870]
> [   323.936] (EE) 9: /usr/lib/xorg/Xorg (_start+0x29) [0x562710919e89]
> [   323.936] (EE) 
> [   323.936] (EE) Segmentation fault at address 0x17

That looks like memory corruption to me.  If you can still readily
reproduce the crash, it might be useful to try running the server with
valgrind.  And please report this upstream following
https://01.org/linuxgraphics/documentation/how-report-bugs and let us
know the bug number.

Cheers,
Julien

Bug#814722: Some new info

2016-02-20 Thread Fabián Inostroza 
After the update of xserver-common and xserver-xorg-core from 1.18.0-3 to
1.18.1-1 things have gone better, X stills crash sometimes but no so
repeteadly.
Also I have found that the crashes happens when I'm using MATLAB (2013a),
while maximizing window or changing tab in the editor.

I have attached some Xorg logs after crashing X using MATLAB.

I couldn't reproduce the crashes using other software, but MATLAB neved
crashed X before.
[16.587] 
X.Org X Server 1.18.1
Release Date: 2016-02-08
[16.587] X Protocol Version 11, Revision 0
[16.587] Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian
[16.587] Current Operating System: Linux thinkpad 4.3.0-1-amd64 #1 SMP Debian 4.3.5-1 (2016-02-06) x86_64
[16.588] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.3.0-1-amd64 root=UUID=48281400-56cd-4f0e-9c5a-892356efda82 ro quiet
[16.588] Build Date: 09 February 2016  11:06:03AM
[16.588] xorg-server 2:1.18.1-1 (http://www.debian.org/support) 
[16.588] Current version of pixman: 0.33.6
[16.588] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[16.588] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[16.588] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Feb 20 18:00:09 2016
[16.642] (==) Using config directory: "/etc/X11/xorg.conf.d"
[16.642] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[16.874] (==) No Layout section.  Using the first Screen section.
[16.874] (==) No screen section available. Using defaults.
[16.874] (**) |-->Screen "Default Screen Section" (0)
[16.874] (**) |   |-->Monitor ""
[17.050] (==) No device specified for screen "Default Screen Section".
	Using the first device section listed.
[17.050] (**) |   |-->Device "Intel Graphics"
[17.050] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[17.050] (==) Automatically adding devices
[17.050] (==) Automatically enabling devices
[17.050] (==) Automatically adding GPU devices
[17.050] (==) Max clients allowed: 256, resource mask: 0x1f
[17.114] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[17.114] 	Entry deleted from font path.
[17.460] (==) FontPath set to:
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/100dpi/:unscaled,
	/usr/share/fonts/X11/75dpi/:unscaled,
	/usr/share/fonts/X11/Type1,
	/usr/share/fonts/X11/100dpi,
	/usr/share/fonts/X11/75dpi,
	built-ins
[17.460] (==) ModulePath set to "/usr/lib/xorg/modules"
[17.460] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[17.471] (II) Loader magic: 0x55fa115b9dc0
[17.471] (II) Module ABI versions:
[17.471] 	X.Org ANSI C Emulation: 0.4
[17.471] 	X.Org Video Driver: 20.0
[17.471] 	X.Org XInput driver : 22.1
[17.471] 	X.Org Server Extension : 9.0
[17.472] (++) using VT number 7

[17.472] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[17.473] (II) xfree86: Adding drm device (/dev/dri/card0)
[17.475] (--) PCI:*(0:0:2:0) 8086:0166:17aa:21fa rev 9, Mem @ 0xf000/4194304, 0xe000/268435456, I/O @ 0x5000/64
[17.475] (II) LoadModule: "glx"
[17.480] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[17.699] (II) Module glx: vendor="X.Org Foundation"
[17.699] 	compiled for 1.18.1, module version = 1.0.0
[17.699] 	ABI class: X.Org Server Extension, version 9.0
[17.699] (==) AIGLX enabled
[17.699] (II) LoadModule: "intel"
[17.700] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[17.881] (II) Module intel: vendor="X.Org Foundation"
[17.881] 	compiled for 1.18.0, module version = 2.99.917
[17.881] 	Module class: X.Org Video Driver
[17.881] 	ABI class: X.Org Video Driver, version 20.0
[17.881] (II) intel: Driver for Intel(R) 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
[17.881] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[17.881] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[17.881] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
[17.940] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20150731
[17.940] (II) intel(0): SNA compiled: xserver-xorg-video-intel 2:2.99.917+git20160127-1+b1 (amd64 Build Daemon (binet) )
[17.940] (II) intel(0): SNA compiled for use with valgrind
[18.065]