Ken Pratt, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com /daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p xorg-server REPLACE-WITH-BUG-NUMBER Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Changed in: xorg-server (Ubuntu) Importance: Undecided => Low ** Changed in: xorg-server (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/939434 Title: Xnest and Xephyr stopped working after recent update (corrupted mem) Status in “xorg-server” package in Ubuntu: Incomplete Bug description: I keep my PC up-2-date with Oneric. Within the last week, an update caused both Xephyr and Xnest to no longer work. Most likely an Xserver update or Glibc update. I run with the following command: Xephyr :1 -query 192.168.15.70 -screen 1400x1050 And see the window pop up briefly then the crash. I am attempting to connect to a Virtual Machine (kvm) that has XDMCP running in an up-2-date install of Precise Pangolin. Running using Xnest instead of Xephyr results in the same. [dix] Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list! [dix] Could not init font path element /usr/share/fonts/X11/100dpi/:unscaled, removing from list! [dix] Could not init font path element /usr/share/fonts/X11/75dpi/:unscaled, removing from list! [dix] Could not init font path element /usr/share/fonts/X11/100dpi, removing from list! [dix] Could not init font path element /usr/share/fonts/X11/75dpi, removing from list! *** glibc detected *** Xephyr: free(): corrupted unsorted chunks: 0x00000000026e2ef0 *** ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x78a96)[0x7fca1f81fa96] /lib/x86_64-linux-gnu/libc.so.6(cfree+0x6c)[0x7fca1f823d7c] /usr/lib/nvidia-current/tls/libnvidia-tls.so.280.13(+0x192c)[0x7fca1e8bd92c] ======= Memory map: ======== 00400000-005e4000 r-xp 00000000 08:01 5115118 /usr/bin/Xephyr 007e3000-007e6000 r--p 001e3000 08:01 5115118 /usr/bin/Xephyr 007e6000-007f3000 rw-p 001e6000 08:01 5115118 /usr/bin/Xephyr 007f3000-00821000 rw-p 00000000 00:00 0 025ca000-02823000 rw-p 00000000 00:00 0 [heap] 7fca14000000-7fca14021000 rw-p 00000000 00:00 0 Cut Off The Rest ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xnest 2:1.10.4-1ubuntu4.2 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 280.13 Wed Jul 27 16:53:56 PDT 2011 GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) .tmp.unity.support.test.0: ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,regex,imgpng,grid,place,snap,mousepoll,wall,gnomecompat,animation,move,resize,compiztoolbox,expo,vpswitch,ezoom,fade,unitymtgrabhandles,session,workarounds,scale,unityshell] CompositorRunning: compiz Date: Thu Feb 23 06:22:11 2012 DistUpgraded: Fresh install DistroCodename: oneiric DistroVariant: ubuntu DkmsStatus: nvidia-current, 280.13, 3.0.0-12-generic, x86_64: installed nvidia-current, 280.13, 3.0.0-13-generic, x86_64: installed nvidia-current, 280.13, 3.0.0-14-generic, x86_64: installed nvidia-current, 280.13, 3.0.0-15-generic, x86_64: installed nvidia-current, 280.13, 3.0.0-16-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: nVidia Corporation GT200 [GeForce GTX 280] [10de:05e1] (rev a1) (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. Device [1682:2400] InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use) xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use) MachineType: MSI MS-7522 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-16-generic root=UUID=c9bf3736-4941-4aed-ad3c-c35b5287925f ro quiet splash vt.handoff=7 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: Section "Device" Identifier "Default Device" Option "NoLogo" "True" EndSection dmi.bios.date: 03/19/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V8.15 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: MSI X58 Pro (MS-7522) dmi.board.vendor: MSI dmi.board.version: 3.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD dmi.chassis.version: 3.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV8.15:bd03/19/2011:svnMSI:pnMS-7522:pvr3.0:rvnMSI:rnMSIX58Pro(MS-7522):rvr3.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr3.0: dmi.product.name: MS-7522 dmi.product.version: 3.0 dmi.sys.vendor: MSI version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6.1 version.ia32-libs: ia32-libs 20090808ubuntu26 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/939434/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

