ubuntu-x-swat team mailing list archive

[Bryce Harrington <714829@xxxxxxxxxxxxxxxxxx>]

** Description changed:

- Binary package hint: xorg
+ An X fault occurs in Ubuntu's automated testing facility across a range
+ of machines which shows itself as an Xorg segfault during the
+ installation process.  I suspect it to be caused by an out-of-memory
+ situation.  Perhaps a memory leak?
  
- We're attempting to install from a Natty daily image, through the
- network and using a preseed file.
+ We've been chasing this bug for a while (such as fixed in commit
+ 6e721e098b9181e8e77e314f966729d28e705582) but this is just fixing the
+ error handler not addressing the underlying cause.
+ 
+ The issue is seen only on Intel graphics hardware and (often) results in
+ an X termination within the drm code.
+ 
+ [Original Report]
+ We're attempting to install from a Natty daily image, through the network and using a preseed file.
  
  The installation starts normally and goes up to a certain point, but
  then the installer exits and we're dropped to the LiveCD graphical
  environment. Sometimes a "system program failed" message appears. I've
  also observed the systems rebooting, my guess is that it happens when
  the bug gets triggered twice in a row (once for the installation and
  once again for the LiveCD environment).
  
  syslog shows a sefgault on Xorg, which is probably what's causing the
  installer to die.
  
  This particular trace and attached apport report were produced on a Dell
  Vostro 3400, though I am able to reproduce the problem on an Acer Aspire
  One D255, Lenovo Thinkpad X201, Asus EeePC 1001PX and Dell Inspiron Mini
  1011.
  
  This bug is very similar to bug 708744 which is a duplicate of 705078,
  and the circumstances under which it occurs are as described on bug
  706117, we're using the same test setup and the only thing we changed
  was the image, this problem occurs using the 20110207 image, and though
  the symptom is similar, from glancing at the backtrace I get the
  impression it's a different problem than the one described/fixed on bug
  705078.
  
  How to reproduce:
  - Use the LiveCD image from 20110207 to do a network install using the attached preseed file. The system gets PXE configuration through DHCP and its preseed file via http, mounting the relevant install media through NFS.
  Expected result:
  - System finishes installing and reboots
- Actual result: 
+ Actual result:
  - The installation gets stopped when the X server crashes, usually dropping to the LiveCD environment.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6~3ubuntu3
  ProcVersionSignature: Ubuntu 2.6.38-2.29-generic 2.6.38-rc3
  Uname: Linux 2.6.38-2-generic i686
  Architecture: i386
  DRM.card0.HDMI.A.1:
-  status: disconnected
-  enabled: disabled
-  dpms: On
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes:
+  edid-base64:
  DRM.card0.LVDS.1:
-  status: disconnected
-  enabled: disabled
-  dpms: On
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes:
+  edid-base64:
  DRM.card0.VGA.1:
-  status: disconnected
-  enabled: disabled
-  dpms: On
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes:
+  edid-base64:
  DRM.card1.DP.1:
-  status: disconnected
-  enabled: disabled
-  dpms: Off
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: Off
+  modes:
+  edid-base64:
  DRM.card1.HDMI.A.2:
-  status: disconnected
-  enabled: disabled
-  dpms: Off
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: Off
+  modes:
+  edid-base64:
  DRM.card1.LVDS.2:
-  status: connected
-  enabled: enabled
-  dpms: On
-  modes: 1366x768
-  edid-base64: AP///////wAw5JICAAAAAAATAQOQHxF4Co41k1hWkCkgUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWaFAAEjAgIDUANa4QAAAaEhtWaFAAEjAgIDUANa4QAAAaAAAA/gA5OVhOWIExNDBXSDIKAAAAAAAAQTGUAQAAAAEBCiAgAMQ=
+  status: connected
+  enabled: enabled
+  dpms: On
+  modes: 1366x768
+  edid-base64: AP///////wAw5JICAAAAAAATAQOQHxF4Co41k1hWkCkgUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWaFAAEjAgIDUANa4QAAAaEhtWaFAAEjAgIDUANa4QAAAaAAAA/gA5OVhOWIExNDBXSDIKAAAAAAAAQTGUAQAAAAEBCiAgAMQ=
  DRM.card1.VGA.2:
-  status: disconnected
-  enabled: disabled
-  dpms: Off
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: Off
+  modes:
+  edid-base64:
  Date: Mon Feb  7 09:37:22 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu
  GdmLog1: Not present
  GdmLog2: Not present
  GraphicsCard:
-  Subsystem: Dell Device [1028:044d]
-    Subsystem: Dell Device [1028:044d]
+  Subsystem: Dell Device [1028:044d]
+    Subsystem: Dell Device [1028:044d]
  LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110207)
  MachineType: Dell Inc. Vostro 3400
  ProcEnviron:
-  LANGUAGE=en_US.UTF-8:en
-  LANG=en_US.UTF-8
-  LC_MESSAGES=en_AG.utf8
-  SHELL=/bin/bash
+  LANGUAGE=en_US.UTF-8:en
+  LANG=en_US.UTF-8
+  LC_MESSAGES=en_AG.utf8
+  SHELL=/bin/bash
  ProcKernelCmdLine: url=http://10.153.104.60/cgi-bin/preseed.cgi boot=casper initrd=initrd.lz netboot=nfs nfsroot=10.153.104.60:/var/www/rsync.cdimage.hostname.com/cdimage/daily-live/current/natty-desktop-i386 log_host=10.153.104.60 log_port=514 automatic-ubiquity BOOT_IMAGE=vmlinuz BOOTIF=01-f0-4d-a2-7c-16-75
  SourcePackage: xorg
  dmi.bios.date: 09/10/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A08
  dmi.board.name: 0RXV7H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA08:bd09/10/2010:svnDellInc.:pnVostro3400:pvrNotSpecified:rvnDellInc.:rn0RXV7H:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Vostro 3400
  dmi.product.version: Not Specified
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.2.1+glibmainloop4-0ubuntu9
  version.libdrm2: libdrm2 2.4.23-1ubuntu3
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
  version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu3
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu6
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

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https://bugs.launchpad.net/bugs/714829

Title:
  Xorg segfaults during LiveCD installation using preseed file