ubuntu-x-swat team mailing list archive

[Brad Parker <728830@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

I have written an application that uses Qt, GStreamer and OpenGL. The
application simply plays fullscreen videos in a loop. I'm using the
nvidia-current driver on Maverick as my program requires 3D
acceleration. Without fail, every 15 minutes, the application receives a
SIGSEGV, followed by Xorg also receiving one. The backtrace from Xorg
is:

Backtrace:
[  7785.849] 0: /usr/bin/X (xorg_backtrace+0x28) [0x45c5a8]
[  7785.849] 1: /usr/bin/X (0x400000+0x5a87d) [0x45a87d]
[  7785.849] 2: /lib/libpthread.so.0 (0x7fc407208000+0xfb40) [0x7fc407217b40]
[  7785.849] 3: /usr/lib/xorg/extra-modules/nvidia_drv.so (0x7fc401b80000+0x73a51) [0x7fc401bf3a51]
[  7785.849] 4: /usr/lib/xorg/extra-modules/nvidia_drv.so (0x7fc401b80000+0x39ddec) [0x7fc401f1ddec]
[  7785.849] 5: /usr/lib/xorg/extra-modules/nvidia_drv.so (0x7fc401b80000+0x3acef7) [0x7fc401f2cef7]
[  7785.849] 6: /usr/bin/X (0x400000+0x3f979) [0x43f979]
[  7785.849] 7: /usr/bin/X (0x400000+0x2187b) [0x42187b]
[  7785.849] 8: /lib/libc.so.6 (__libc_start_main+0xfe) [0x7fc406173d8e]
[  7785.849] 9: /usr/bin/X (0x400000+0x21409) [0x421409]
[  7785.849] Segmentation fault at address 0x1a000c4a150
[  7785.849]
Caught signal 11 (Segmentation fault). Server aborting

I have also attached a full gdb backtrace from the core that was dumped
from my application. I'm not sure if this is an nvidia driver bug or an
Xorg one, but I'm able to reproduce it on multiple machines of different
hardware configuration, with different nvidia adapters and driver
versions. I have tried an Nvidia ION chipset as well as an NVS 300,
along with the binary nvidia driver versions 260.19.06-0ubuntu1 (the
stock driver available in current Maverick repo) as well as 260.19.36
(downloaded from nvidia.com) and 270.29-0ubuntu1~maverick~xup2 (from
ppa:ubuntu-x-swat/x-updates).

Any help is greatly appreciated. Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xserver-xorg-core 2:1.9.0-0ubuntu7.3
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module  260.19.06  Mon Sep 13 04:29:19 PDT 2010
 GCC version:  gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5)
Architecture: amd64
Date: Thu Mar  3 21:28:50 2011
DkmsStatus: nvidia-current, 260.19.06, 2.6.35-27-generic, x86_64: installed
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Supermicro X8DT6
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-27-generic root=UUID=7b9f3db9-205c-483e-aac8-fb96339e4df2 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg-server
dmi.bios.date: 09/14/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2.0a
dmi.board.asset.tag: 1234567890
dmi.board.name: X8DT6
dmi.board.vendor: Supermicro
dmi.board.version: 1234567890
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 1234567890
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0a:bd09/14/2010:svnSupermicro:pnX8DT6:pvr1234567890:rvnSupermicro:rnX8DT6:rvr1234567890:cvnSupermicro:ct17:cvr1234567890:
dmi.product.name: X8DT6
dmi.product.version: 1234567890
dmi.sys.vendor: Supermicro
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       x86_64
 kernel:             2.6.35-27-generic

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug maverick nvidia opengl xorg

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https://bugs.launchpad.net/bugs/728830

Title:
  Reproducible: OpenGL application segfaults Xorg (w/ nvidia driver)
  every 15 minutes