segfault while running glmark2-es2

[Chirag Varde]

I have compiled glmark2 using following commands
./waf configure --enable-glesv2
./waf

and when I try to run glmark2-es2, it shows segmentation fault.
I am using OpenSUSE 11.4 64bit and gcc 4.6.3

gdb shows this

Try: zypper install -C "debuginfo(build-id)=113ba00ae2c1794de40dbd41b41133e6152f7956"
Missing separate debuginfo for /usr/lib64/libXfixes.so.3
Try: zypper install -C "debuginfo(build-id)=3bc046d7ea5494d8770309240eeb198e9ec76d19"
libEGL warning: failed to create DRM screen
libEGL warning: use software fallback

Program received signal SIGSEGV, Segmentation fault.
glDeleteFramebuffers () at glapi/glapi_x86-64.S:19190
19190 glapi/glapi_x86-64.S: No such file or directory.
 in glapi/glapi_x86-64.S
(gdb) back
#0 glDeleteFramebuffers () at glapi/glapi_x86-64.S:19190
#1 0x00000000004be115 in CanvasX11::release_fbo (this=0x7fffffffdd20) at ../src/canvas-x11.cpp:463
#2 0x00000000004be9b8 in CanvasX11::reset (this=0x7fffffffdd20) at ../src/canvas-x11.cpp:38
#3 0x0000000000406d2a in main (argc=<value optimized out>, argv=0x7fffffffdf18) at ../src/main.cpp:183
(gdb) ^CQuit
(gdb) q
A debugging session is active.

 Inferior 1 [process 16282] will be killed.

Quit anyway? (y or n) y

[Alexandros Frantzis (afrantzis)]

First of all, to get a cleaner environment, I suggest building and running completely in-tree:

$ ./waf uninstall (optional, to uninstall system-wide installation)

$ ./waf configure --enable-gl --enable-glesv2 --data-path=$(pwd)/data
$ ./waf

$ build/src/glmark2
$ build/src/glmark2-es2

Please check if running 'build/src/glmark2' (the desktop GL variant) causes the same problem. Also, which version of Mesa are you using?

[Chirag Varde (chirag-varde-crg)]

I built glmark2 as instructed, but still its showing segfault. Both glmark2 and glmark2-es2 are not running.

I am using Mesa 7.10.2.

Earlier I bullt glmark2 and it built fine. Then I installed gcc 4.6.3 and built it again in separate directory and now it is showing segfault.

I still have glmark2 built by old gcc and that one is working fine.

[Chirag Varde (chirag-varde-crg)]

Now when I am running glmark2, I am getting this error with segfault

Error: eglGetConfigAttrib() failed with error: 12293
Segmentation fault

[Chirag Varde (chirag-varde-crg)]

I mean glmark2-es

[Eric Brower (ebrower)]

In 2012.08 and 2012.12, canvas-x11.cpp CanvasX11::release_fbo() unconditionally calls glDeleteFramebuffers() without a valid context enabled. This is undefined behavior per the spec, and though different drivers handle this differently, it's indicative of an application bug and a crash could be expected.

In the trunk, a check was put in for "if (fbo_)" so you may see the crashing moved lower to the call to glDeleteRenderbuffers(). Checks were put in place but have an incorrect negation (checking for zero rather than non-zero).

A patch to trunk is attached, along with a somewhat hacky patch for 2012.08 that you could try for testing.