(R500, radeon, x64) games segfaulting

**wirrbeltier** · 09-05-2009, 08:42 PM

Hey folks, i'm not sure if this is the right forum to post, but my research has led me to believe that. If it should turn out that this i just forgot to switch on some obscure options, or it is actually the games' bugs, then feel free to move this thread.
I'm currently running Ubuntu Jaunty with stock kernel (2.6.28-15, x64) and opensource radeon drivers & graphics stack from the xorg-edgers ppa, on a 64-bit system with a Radeon X1600 w/ 256 MB RAM.
Openarena, compiz and the demos of ballistics and Postal 2 work like a charm, but the game that brought me to the whole thougt of playing on linux is hanging
When i try to start the demo version of LGP's X2 port, i see the loading screen, then it turns blank, i hear the sounds of LGPs "intro movie", then silence and blank screen for 1-4 seconds, and then the game segfaults with a message like this:

Code:

x2-demo 1.4.05, built for i386
Segmentation Fault: What do you mean mind the asteroid? What astero

This is a BUG, please report it to http://support.linuxgamepublishing.com
Stack dump:
{
	[0xf7f44400]
	/usr/lib32/libGL.so.1 [0xf73dd9ad]
	/usr/lib32/libGL.so.1 [0xf73dd5ce]
	x2_demo [0x80f51b6]
	x2_demo [0x80b7d87]
	x2_demo(vfprintf+0x2aed) [0x805195d]
	x2_demo(vfprintf+0x3830) [0x80526a0]
	x2_demo [0x81009cf]
	/lib32/libc.so.6(__libc_start_main+0xe5) [0xf7cb5775]
	x2_demo(XMapRaised+0x31) [0x804ff91]
}

for two times in my hours of random trying, i achieved to see the following loading screen before the segfault. LGPs testtool gives some interesting results, though:

Code:

 Testing installation... OK, installed at /usr/local/games/testtool
Base system Test
----------------
Testing architecture of system... 64 bits
Testing system CPU... 2794MHz
Testing CPU flags... MMX SSE SSE2 
Testing system memory... -298MB

Graphics Test
-------------
Looking for OpenGL library
Rejecting /usr/lib/libGL.so.1 - wrong architecture
Rejecting /usr/lib/libGL.so.1.2 - wrong architecture
Accepting /usr/lib32/libGL.so.1
  Card detected as DRI R300 Project Mesa DRI R300 (RV530 71C3) 20090101  TCL
  Direct Rendering: No
  Card memory detected as 256MB
  Card antialiasing level 0x
  Card anisotropic level 16x
  Card shader level 2.0

note the "direct rendering: No", whereas glxinfo returns

Code:

wirrbel@Datenschaufel:~$ glxinfo | grep direct
direct rendering: Yes

.
the syslogs also show nothing suspicious. Results are the same with stock graphics stack.
I think i have installed all the necessary libraries for running 32-bit apps on 64-bit systems, as well as all the old libraries required by LGPs installers (the script getlibs was a great help).
However, the demo runs fine (well, at slideshow-speed, but playable) on my EEE pc 4G, which has its integrated Intel graphic chip, an even older kernel and a 32-bit system.

My questions now are:
1. From my limited knowledge, a segfault often points to a memory problem. Could a custom compiled 2.6.31 kernel with enabled GEM/TTM bring help?
2. Could this segfault be a result of some animosity between 32-bit app and 64-bit system? i have 8 GB RAM installed, so perhaps there lies a source of trouble.
3. Could it be that the drivers' OpenGL implementation (somewhere at OpenGL v. 1.4 IIRC) just not yet fulfils the games' needs?
4. Might there be some arcane option in the xorg.conf or elsewhere, for direct rendering, shadowfb or something else? currently my xorg.conf has no customized entries.

Any hint is appreciated

wirrbeltier

**bridgman** · 09-05-2009, 11:25 PM

I'm guessing here too, but in the "Graphics Test" portion of your second quote it looks like the "normal" libGL is being skipped in favor of one in lib32. What I'm not sure is if that means you're skipping the nice new (64-bit) mesa you installed from the edgers ppa and picking up an old 32-bit mesa, or if the ppa gave you a 32-bit lib as well and the libGL.so files being skipped are old junk from a previous installation.

My guess is the first option, ie that this has something to do with 64 vs 32 bit.

Have you reported it to linuxgamepublishing ?

**tormod** · 09-06-2009, 03:43 AM

Code:

dpkg-deb -c libgl1-mesa-glx_7.6.0+git20090906.97787317-0ubuntu0tormod~jaunty_amd64.deb | grep GL
-rw-r--r-- root/root    523048 2009-09-06 01:01 ./usr/lib/libGL.so.1.2
lrwxrwxrwx root/root         0 2009-09-06 01:01 ./usr/lib/libGL.so.1 -> libGL.so.1.2

So this is the lib that xorg-edgers ships and which should be used on a 64-bit system. I have no experience with 64 bit and I am not sure what should happen when you run 32-bit apps on them though. Where is the other lib coming from?

Code:

dpkg -S /usr/lib32/libGL.so.1

For your question (1) about the kernel: Why don't you just install the newest Karmic kernel? You can keep the old, and choose between them at boot.

**sobkas** · 09-06-2009, 12:29 PM

Originally Posted by wirrbeltier

Hey folks, i'm not sure if this is the right forum to post, but my research has led me to believe that. If it should turn out that this i just forgot to switch on some obscure options, or it is actually the games' bugs, then feel free to move this thread.
I'm currently running Ubuntu Jaunty with stock kernel (2.6.28-15, x64) and opensource radeon drivers & graphics stack from the xorg-edgers ppa, on a 64-bit system with a Radeon X1600 w/ 256 MB RAM.
Openarena, compiz and the demos of ballistics and Postal 2 work like a charm, but the game that brought me to the whole thougt of playing on linux is hanging
When i try to start the demo version of LGP's X2 port, i see the loading screen, then it turns blank, i hear the sounds of LGPs "intro movie", then silence and blank screen for 1-4 seconds, and then the game segfaults with a message like this:

Code:

x2-demo 1.4.05, built for i386
Segmentation Fault: What do you mean mind the asteroid? What astero

This is a BUG, please report it to http://support.linuxgamepublishing.com
Stack dump:
{
	[0xf7f44400]
	/usr/lib32/libGL.so.1 [0xf73dd9ad]
	/usr/lib32/libGL.so.1 [0xf73dd5ce]
	x2_demo [0x80f51b6]
	x2_demo [0x80b7d87]
	x2_demo(vfprintf+0x2aed) [0x805195d]
	x2_demo(vfprintf+0x3830) [0x80526a0]
	x2_demo [0x81009cf]
	/lib32/libc.so.6(__libc_start_main+0xe5) [0xf7cb5775]
	x2_demo(XMapRaised+0x31) [0x804ff91]
}

for two times in my hours of random trying, i achieved to see the following loading screen before the segfault. LGPs testtool gives some interesting results, though:

Code:

 Testing installation... OK, installed at /usr/local/games/testtool
Base system Test
----------------
Testing architecture of system... 64 bits
Testing system CPU... 2794MHz
Testing CPU flags... MMX SSE SSE2 
Testing system memory... -298MB

Graphics Test
-------------
Looking for OpenGL library
Rejecting /usr/lib/libGL.so.1 - wrong architecture
Rejecting /usr/lib/libGL.so.1.2 - wrong architecture
Accepting /usr/lib32/libGL.so.1
  Card detected as DRI R300 Project Mesa DRI R300 (RV530 71C3) 20090101  TCL
  Direct Rendering: No
  Card memory detected as 256MB
  Card antialiasing level 0x
  Card anisotropic level 16x
  Card shader level 2.0

note the "direct rendering: No", whereas glxinfo returns

Code:

wirrbel@Datenschaufel:~$ glxinfo | grep direct
direct rendering: Yes

.

There are many problems that might have same results as your. testtool is 32bit app.

First of all, /usr/lib32/libGL.so.1 might not seek dri drivers in /usr/lib32/dri but only in /usr/lib/dri.
You can try to fix it by setting this:
LIBGL_DRIVERS_PATH=/usr/lib32/dri:/usr/lib/dri
eg.

Code:

LIBGL_DRIVERS_PATH=/usr/lib32/dri:/usr/lib/dri /usr/local/games/testtool

But 32bit glxinfo might be better.

I think it might be your problem, but I'm not sure.

Second, /usr/lib32/dri/r300_dri.so (and/or /usr/lib32/libGL.so.1) might be just to old/incompatible with rest of the system.
Solution is to install newer one.
Less likely, as library looks(from testtool output) quiet new, but still possible.

In debian I have 32bit mesa installed

Code:

LANG=C ia32-apt-cache policy ia32-libgl1-mesa-glx
ia32-libgl1-mesa-glx:
  Installed: 7.5-3~22
  Candidate: 7.5.1-1~22
  Version table:
     7.5.1-1~22 0
        400 http://ftp.pl.debian.org unstable-i386/main Packages
 *** 7.5-3~22 0
        100 /var/lib/dpkg/status
     7.0.3-7~22 0
        400 http://ftp.pl.debian.org testing-i386/main Packages

Now I use mesa from git, but earlier I have used package.

Snippet from apt-cache:

Code:

ia32-apt-cache search mesa libgl ia32
ia32-libgl1-mesa-dev - A free implementation of the OpenGL API -- GLX development files
ia32-libgl1-mesa-dri - A free implementation of the OpenGL API -- DRI modules
ia32-libgl1-mesa-dri-dbg - Debugging symbols for the Mesa DRI modules
ia32-libgl1-mesa-glx - A free implementation of the OpenGL API -- GLX runtime
ia32-libgl1-mesa-glx-dbg - Debugging symbols for the Mesa GLX runtime
(more...)

Third, radeon.ko doesn't support compat ioctl(no 32bit ioctls for 32bit binaries on 64bit kernel) while KMS is enabled. I have only found It on KMS-enabled kernels(2.6.31) eg. KMS must be running. Like I said only on 2.6.31.

And many more.

Easiest way to find source of you problem is to get 32bit version of glxinfo and run it:
LIBGL_DEBUG=verbose glxinfo 1>/dev/null
Output should include only debug info.
You might also want to try LIBGL_DRIVERS_PATH trick.
Comparing full output of 32bit glxinfo with 64bit one might be also useful.

Originally Posted by wirrbeltier

the syslogs also show nothing suspicious. Results are the same with stock graphics stack.
I think i have installed all the necessary libraries for running 32-bit apps on 64-bit systems, as well as all the old libraries required by LGPs installers (the script getlibs was a great help).

getlibs is not a tool that you want to use.
I bet Ubuntu have a tool to install 32bit libraries alongside 64bit ones(debian have). Use it.

Originally Posted by wirrbeltier

My questions now are:
1. From my limited knowledge, a segfault often points to a memory problem. Could a custom compiled 2.6.31 kernel with enabled GEM/TTM bring help?

From my personal experience if you want to run 32bit opengl binaries on 64bit kernel, 2.6.31 kernel with GEM/TTM/KMS enabled, is not what you looking for.

Originally Posted by wirrbeltier

2. Could this segfault be a result of some animosity between 32-bit app and 64-bit system? i have 8 GB RAM installed, so perhaps there lies a source of trouble.

I don't think so.

Originally Posted by wirrbeltier

3. Could it be that the drivers' OpenGL implementation (somewhere at OpenGL v. 1.4 IIRC) just not yet fulfils the games' needs?

With git mesa(maybe 1.5 OpenGL dri1) I was able not only to start game but also fly in ship a bit.
I didn't tested it more due to lack of time.

Originally Posted by wirrbeltier

4. Might there be some arcane option in the xorg.conf or elsewhere, for direct rendering, shadowfb or something else? currently my xorg.conf has no customized entries.

If there is one I don't know about it.

I assume that you have fully updated X2.

**nanonyme** · 09-06-2009, 01:04 PM

Right, so tormod & folks should now go on packaging new versions of ia32-libgl1-mesa-* too?

**tormod** · 09-06-2009, 01:15 PM

Originally Posted by nanonyme

Right, so tormod & folks should now go on packaging new versions of ia32-libgl1-mesa-* too?

Can the ia32-libs-tools package be of help?

Description: Tools for converting i386 debs for amd64 and ia64
On amd64 and ia64 the kernel is capable of executing i386
binaries. For that to work with dynamically linked binaries the
required 32bit libraries need to be available as well. This package
contains tools to convert native i386 binary packages for use under
amd64 or ia64.

"32 bits ought to be enough for anyone"

**sobkas** · 09-06-2009, 01:58 PM

Originally Posted by tormod

Can the ia32-libs-tools package be of help?

"32 bits ought to be enough for anyone"

Higher level tool, like ia32-apt-get is more useful than direct use of ia32-libs-tools. With one command you can install selected library or binary.

ia32-apt-cache show ia32-apt-get

Code:

Package: ia32-apt-get
Status: install ok installed
Priority: extra
Section: devel
Installed-Size: 148
Maintainer: Debian ia32-libs Team <pkg-ia32-libs-maintainers@lists.alioth.debian.org>
Architecture: all
Source: ia32-libs-tools
Version: 22
Depends: debconf (>= 0.5), ia32-libs-tools (>= 16)
Recommends: fakeroot
Conflicts: ia32-libs, ia32-libs-gtk
Conffiles:
 /etc/apt/apt.conf.d/00ia32-apt-get 6a029c3534fc152548520ea796ff3493
Description: Apt-get, aptitude and dpkg wrapper for on-the-fly conversion
 On amd64 and ia64 the kernel is capable of executing i386
 binaries. For that to work with dynamically linked binaries the
 required 32bit libraries need to be available as well. This package
 contains wrappers for apt-get, aptitude and dpkg that will enable you
 to install i386 packages and convert them as they are being installed.

Installation of 32bit library comes down to typing:

Code:

ia32-aptitude install ia32-libgl1-mesa-dri ia32-libgl1-mesa-glx

But only if there is ia32(normal i486 package) package available in repository.

**DanL** · 09-06-2009, 02:48 PM

Originally Posted by sobkas

Easiest way to find source of you problem is to get 32bit version of glxinfo and run it:
LIBGL_DEBUG=verbose glxinfo 1>/dev/null
Output should include only debug info.
You might also want to try LIBGL_DRIVERS_PATH trick.
Comparing full output of 32bit glxinfo with 64bit one might be also useful.

I'm having the same issue with 32-bit programs using Ubuntu64 9.10 (I'm not using any 32-bit 3D programs, so the issue is purely academic right now). On Ubuntu, a lot of the Debian ia32 packages are combined into 'ia32-libs' package. I have this package installed and it provides 32-bit versions of mesa libGL and the DRI drivers (the DRI drivers are installed in /usr/lib32/dri).

Even with the driver path trick, I cannot get 32-bit glxinfo to use direct rendering, and it seems like glxinfo doesn't even look in /usr/lib32:

Code:

$ LIBGL_DRIVERS_PATH=/usr/lib32/dri:/usr/lib/dri
$ LIBGL_DEBUG=verbose ~/Desktop/glxinfo 1>/dev/null
libGL: XF86DRIGetClientDriverName: 4.3.0 r600 (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib/dri/r600_dri.so
libGL error: dlopen /usr/lib/dri/r600_dri.so failed (/usr/lib/dri/r600_dri.so: wrong ELF class: ELFCLASS64)
libGL error: unable to load driver: r600_dri.so
libGL: OpenDriver: trying /usr/lib/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/dri/swrast_dri.so
libGL error: dlopen /usr/lib/dri/swrast_dri.so failed (/usr/lib/dri/swrast_dri.so: wrong ELF class: ELFCLASS64)
libGL error: unable to load driver: swrast_dri.so
libGL error: reverting to indirect rendering

Note that I have an RV710 and I'm using agd5f's DRM, so maybe my output isn't relevant here :\

EDIT: I'll also add:

Code:

$ ldd glxinfo 
	linux-gate.so.1 =>  (0xf7f82000)
	libGL.so.1 => /usr/lib32/libGL.so.1 (0xf7eef000)
	libm.so.6 => /lib32/libm.so.6 (0xf7ec7000)
	libc.so.6 => /lib32/libc.so.6 (0xf7d6e000)
	libX11.so.6 => /usr/lib32/libX11.so.6 (0xf7c3f000)
	libXext.so.6 => /usr/lib32/libXext.so.6 (0xf7c2f000)
	libXxf86vm.so.1 => /usr/lib32/libXxf86vm.so.1 (0xf7c29000)
	libXdamage.so.1 => /usr/lib32/libXdamage.so.1 (0xf7c26000)
	libXfixes.so.3 => /usr/lib32/libXfixes.so.3 (0xf7c20000)
	libdrm.so.2 => /usr/lib32/libdrm.so.2 (0xf7c13000)
	libpthread.so.0 => /lib32/libpthread.so.0 (0xf7bf9000)
	libdl.so.2 => /lib32/libdl.so.2 (0xf7bf5000)
	/lib/ld-linux.so.2 (0xf7f83000)
	libxcb.so.1 => /usr/lib32/libxcb.so.1 (0xf7bd7000)
	libXau.so.6 => /usr/lib32/libXau.so.6 (0xf7bd3000)
	librt.so.1 => /lib32/librt.so.1 (0xf7bc9000)
	libXdmcp.so.6 => /usr/lib32/libXdmcp.so.6 (0xf7bc4000)

**nanonyme** · 09-06-2009, 02:51 PM

It's still trying to load the 64bit libraries for you... Also the original issue was with r500 and is unrelated to yours. Also you must be doing the driver path wrong considering where it's looking for the driver.

**sobkas** · 09-06-2009, 03:17 PM

Originally Posted by DanL

I'm having the same issue with 32-bit programs using Ubuntu64 9.10 (I'm not using any 32-bit 3D programs, so the issue is purely academic right now). On Ubuntu, a lot of the Debian ia32 packages are combined into 'ia32-libs' package. I have this package installed and it provides 32-bit versions of mesa libGL and the DRI drivers (the DRI drivers are installed in /usr/lib32/dri).

Even with the driver path trick, I cannot get 32-bit glxinfo to use direct rendering, and it seems like glxinfo doesn't even look in /usr/lib32:

Code:

$ LIBGL_DRIVERS_PATH=/usr/lib32/dri:/usr/lib/dri
$ LIBGL_DEBUG=verbose ~/Desktop/glxinfo 1>/dev/null
libGL: XF86DRIGetClientDriverName: 4.3.0 r600 (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib/dri/r600_dri.so
libGL error: dlopen /usr/lib/dri/r600_dri.so failed (/usr/lib/dri/r600_dri.so: wrong ELF class: ELFCLASS64)
libGL error: unable to load driver: r600_dri.so
libGL: OpenDriver: trying /usr/lib/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/dri/swrast_dri.so
libGL error: dlopen /usr/lib/dri/swrast_dri.so failed (/usr/lib/dri/swrast_dri.so: wrong ELF class: ELFCLASS64)
libGL error: unable to load driver: swrast_dri.so
libGL error: reverting to indirect rendering

Note that I have an RV710 and I'm using agd5f's DRM, so maybe my output isn't relevant here :\

You are making small mistake, that is unfortunately fatal. If you want to use shell variable, like you used above, you must export it first:

Code:

$ export LIBGL_DRIVERS_PATH=/usr/lib32/dri:/usr/lib/dri
$ LIBGL_DEBUG=verbose ~/Desktop/glxinfo 1>/dev/null

you can also put everything in one line:

Code:

LIBGL_DRIVERS_PATH=/usr/lib32/dri:/usr/lib/dri LIBGL_DEBUG=verbose ~/Desktop/glxinfo 1>/dev/null

In my example:

Code:

LIBGL_DRIVERS_PATH=/opt:/usr/lib32/dri:/usr/lib/dri LIBGL_DEBUG=verbose ia32-glxinfo 1>/dev/null
libGL: OpenDriver: trying /opt/tls/r300_dri.so
libGL: OpenDriver: trying /opt/r300_dri.so
libGL error: dlopen /opt/r300_dri.so failed (/opt/r300_dri.so: cannot open shared object file: No such file or directory)
libGL: OpenDriver: trying /usr/lib32/dri/tls/r300_dri.so
libGL: OpenDriver: trying /usr/lib32/dri/r300_dri.so

You can see that "/opt" and "/usr/lib32/dri" dirs are searched.

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