Bug 15668

Summary:	OpenGL-based applications with XFree 4.2.1-r2 and Nvidia GLX send SIGSEGV
Product:	Gentoo Linux	Reporter:	Chris Slater <slaterc>
Component:	[OLD] Library	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED INVALID
Severity:	minor
Priority:	Low
Version:	1.4_rc2
Hardware:	x86
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Chris Slater 2003-02-13 21:52:44 UTC

This has been tested with Quake III, the Marbleblast demo, DGen, Abuse_SDL, and
ZSNES.

Every time I open an application that requries the use of OpenGL (or is compiled
with the ability to use OGL) it crashes with a SIGSEGV (Signal 11; Segmentation
Fault). In Quake III, when it loads libGL.so.1, that is when it sends the SIGSEGV.

To test to see if this is true, I swiched to the XFree OGL implentation, and
everything's fine.

Comment 1 SpanKY gentoo-dev

2003-02-13 22:20:11 UTC

umm please provide more information ...
`emerge info`
what version of nvidia drivers ?

what if you do `opengl-update nvidia` before you load the X

Comment 2 Chris Slater 2003-02-13 23:24:50 UTC

Sorry about not including the nvidia driver info: 1.0-3123 (1.0-3132-r2) right from portage.

As for emerge info:

Portage 2.0.46-r12 (default-x86-1.4, gcc-3.2.1, glibc-2.3.1-r2)
=================================================================
System uname: 2.4.19-gentoo-r10 i686 AMD Athlon(tm) processor
GENTOO_MIRRORS="http://gentoo.oregonstate.edu/ http://distro.ibiblio.org/pub/Linux/distributions/gentoo"
CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config /usr/X11R6/lib/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
PORTDIR="/usr/portage"
DISTDIR="/usr/portage/distfiles"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR_OVERLAY=""
USE="x86 oss 3dnow apm arts avi crypt cups encode gif jpeg kde gnome libg++ libwww mikmod mmx mpeg ncurses nls pdflib png qtmt quicktime spell truetype xml2 xmms xv zlib gtkhtml gdbm berkdb slang readline bonobo svga java guile X sdl gpm tcpd pam ssl perl python esd imlib oggvorbis gtk qt motif opengl mozilla"
COMPILER="gcc3"
CHOST="i686-pc-linux-gnu"
CFLAGS="-march=athlon-tbird -O3 -pipe"
CXXFLAGS="-march=athlon-tbird -O3 -pipe"
ACCEPT_KEYWORDS="x86"
MAKEOPTS="-j2"
AUTOCLEAN="yes"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
FEATURES="sandbox ccache"

Also, I did do an opengl-update nvidia on the console before starting X -- same results.

Comment 3 Chris Slater 2003-02-13 23:25:53 UTC

Oops the NVIDIA_kernel should read 1.0-3123r2.

Comment 4 Chris Slater 2003-02-14 10:58:22 UTC

I have found just now that the segementation faults occuring in the module is due to __GL_SINGLE_THREADED=1 being exported into the enviroment. I don't know if you really can call this a bug or not; it seems strange to me anyway that having the applications not use multithreading would cause such behaviour in the program. Anyeay I apologize as I don't think this is really a bug.