Matlab 2012a 64bit VBLSyncTest hangs after test screen with glibc malloc() memory corruption

1
HI Mario,

I have been trying to get Psychtoolbox to work with Matlab2012a 64bit on my 64bit gentoo linux system:

Linux localhost 3.8.3-gentoo-r1 #5 SMP Wed Mar 20 13:10:55 EDT 2013 x86_64 AMD Opteron(tm) Processor 6168 AuthenticAMD GNU/Linux

I had reported this error to you a while back, but we never got to the bottom of it. Here is a link to the earlier thread about this:


Earlier, I had thought it might have something to do with fonts, but perhaps not.

I am using the newest Psychtoolbox code as of yesterday (5/22/2013), and have reproduced the hang yet again. The memory address reported changes a bit each time the crash occurs, but that's to be expected.

I have pasted the various outputs below. Matlab hangs and I have to kill -9 it to get rid of it.

Any ideas?

Thanks in advance!

Best regards,
Jake


=========================================================
Command line output
=========================================================
libptbdrawtext_ftgl: External 'DrawText' text rendering plugin initialized.
libptbdrawtext_ftgl: This plugin uses multiple excellent free software libraries to do its work:
libptbdrawtext_ftgl: OGLFT (http://oglft.sourceforge.net/) the OpenGL-FreeType library.
libptbdrawtext_ftgl: The FreeType-2 (http://freetype.sourceforge.net/) library.
libptbdrawtext_ftgl: The FontConfig (http://www.fontconfig.org) library.
libptbdrawtext_ftgl: Thanks!

libptbdrawtext_ftgl: Trying to find font that closely matches following specification:
libptbdrawtext_ftgl: Best matching font which will be selected for drawing has following specs:
libptbdrawtext_ftgl: Freetype loaded face 0x7f8238e49f00 with index 0 from font file /usr/share/fonts/75dpi/timBI24-ISO8859-1.pcf.gz.
*** glibc detected *** /mnt/sdc/home/martin/Matlab2012a/bin/glnxa64/MATLAB: malloc(): memory corruption: 0x00007f8238e604a0 ***

=========================================================
Matlab 2012a command line output
=========================================================

diary on
oldLevel = Screen('Preference', 'Verbosity', [5]);
PTB-INFO: Display ':0' : X-Screen 0 : Assigning primary output as 2 with RandR-CRTC 0 and GPU-CRTC 0.
Screen('Preference', 'VisualDebugLevel', 4);
VBLSyncTest
ans =
0
RandR: 1280x1024 (0x1e7) 135.0MHz
h: width 1280 start 1296 end 1440 total 1688 skew 0
v: height 1024 start 1025 end 1028 total 1066


PTB-INFO: This is Psychtoolbox-3 for GNU/Linux X11, under Matlab 64-Bit (Version 3.0.10 - Build date: May 22 2013).
PTB-INFO: Type 'PsychtoolboxVersion' for more detailed version information.
PTB-INFO: Most parts of the Psychtoolbox distribution are licensed to you under terms of the MIT License, with
PTB-INFO: some restrictions. See file 'License.txt' in the Psychtoolbox root folder for the exact licensing conditions.

PTB-INFO: Using new-style override-redirect setup path for onscreen window creation.
PTB-INFO: GLX Visual info depths is 24 bits
PTB-INFO: Using GLEW version 1.9.0 for automatic detection of OpenGL extensions...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890 Northbridge only dual slot (2x16) PCI-e GFX Hydra part] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (PCI express gpp port B)] with class x00060400 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (PCI express gpp port H)] with class x00060400 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890 PCI to PCI bridge (external gfx1 port A)] with class x00060400 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode]] with class x00010601 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller] with class x000c0310 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0 USB OHCI1 Controller] with class x000c0310 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller] with class x000c0320 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller] with class x000c0310 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0 USB OHCI1 Controller] with class x000c0310 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller] with class x000c0320 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller] with class x000c0500 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 IDE Controller] with class x0001018a ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller] with class x00060100 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge] with class x00060401 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller] with class x000c0310 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor Address Map] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor Link Control] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor Address Map] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control] with class x00060000 ...
PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h Processor Link Control] with class x00060000 ...
PTB-DEBUG: Checking PCI device [ASPEED Technology, Inc. ASPEED Graphics Family] with class x00030000 ...
PTB-DEBUG: Checking PCI device [LSI Corporation FW322/323 [TrueFire] 1394a Controller] with class x000c0010 ...
PTB-DEBUG: Checking PCI device [Intel Corporation 82574L Gigabit Network Connection] with class x00020000 ...
PTB-DEBUG: Checking PCI device [Intel Corporation 82574L Gigabit Network Connection] with class x00020000 ...
PTB-DEBUG: Checking PCI device [NVIDIA Corporation GF100 [GeForce GTX 480]] with class x00030000 ...
PTB-INFO: NVIDIA Corporation - GF100 [GeForce GTX 480] GPU found. Trying to establish low-level access...
PTB-DEBUG: Mapping GPU BAR address 0xf8000000 ...
PTB-DEBUG: Mapping 0x2000000 bytes...
PTB-INFO: Connected to NVidia GF100 [GeForce GTX 480] GPU of NV-c0 family with 2 display heads. Beamposition timestamping enabled.


OpenGL-Vendor / renderer / version are: NVIDIA Corporation - GeForce GTX 480/PCIe/SSE2 - 4.3.0 NVIDIA 313.26


OpenGL-Extensions are: GL_AMD_multi_draw_indirect GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_blend_func_extended GL_ARB_clear_buffer_object GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_
imaging GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_
texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_
vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_
secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_store GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_x11_sync_object GL_EXT_import_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_debug GL_KTX_buffer_region GL_NV_blend_square GL_NV_
compute_program5 GL_NV_conditional_render GL_NV_copy_depth_to_color GL_NV_copy_image GL_NV_depth_buffer_float GL_NV_depth_clamp GL_NV_draw_texture GL_NV_ES1_1_compatibility GL_NV_explicit_multisample GL_NV_fence GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_program GL_NV_fragment_program_option GL_NV_fragment_program2 GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4 GL_NV_gpu_program4 GL_NV_gpu_program4_1 GL_NV_gpu_program5 GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_shader5 GL_NV_half_float GL_NV_light_max_exponent GL_NV_multisample_coverage GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_texgen_reflection GL_NV_texture_
barrier GL_NV_texture_compression_vtc GL_NV_texture_env_combine4 GL_NV_texture_expand_normal GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_vdpau_interop GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NVX_conditional_render GL_NVX_gpu_memory_info GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum

PTB-Info: Running on 'The X.Org Foundation' XServer, Vendor release 11301000.
RandR: 1280x1024 (0x1e7) 135.0MHz
h: width 1280 start 1296 end 1440 total 1688 skew 0
v: height 1024 start 1025 end 1028 total 1066
RandR: 1280x1024 (0x1e7) 135.0MHz
h: width 1280 start 1296 end 1440 total 1688 skew 0
v: height 1024 start 1025 end 1028 total 1066
PTB-INFO: Threshold Settings for successfull video refresh calibration are: maxStdDev = 0.200000 msecs, maxDeviation = 10.000000 %, minSamples = 50, maxDuration = 5.000000 secs.
PTB-INFO: Screen 0 [head 0]: Applying beamposition corrective offsets: vblbias = 40, vbltotal = 1066.


PTB-DEBUG: Output of all acquired samples of calibration run follows:
PTB-DEBUG: Sample 0: 0.000000
PTB-DEBUG: Sample 1: 0.013323
PTB-DEBUG: Sample 2: 0.013329
PTB-DEBUG: Sample 3: 0.013331
PTB-DEBUG: Sample 4: 0.013328
PTB-DEBUG: Sample 5: 0.013331
PTB-DEBUG: Sample 6: 0.013330
PTB-DEBUG: Sample 7: 0.013331
PTB-DEBUG: Sample 8: 0.013328
PTB-DEBUG: Sample 9: 0.013331
PTB-DEBUG: Sample 10: 0.013330
PTB-DEBUG: Sample 11: 0.013330
PTB-DEBUG: Sample 12: 0.013329
PTB-DEBUG: Sample 13: 0.013330
PTB-DEBUG: Sample 14: 0.013330
PTB-DEBUG: Sample 15: 0.013332
PTB-DEBUG: Sample 16: 0.013328
PTB-DEBUG: Sample 17: 0.013331
PTB-DEBUG: Sample 18: 0.013329
PTB-DEBUG: Sample 19: 0.013330
PTB-DEBUG: Sample 20: 0.013329
PTB-DEBUG: Sample 21: 0.013330
PTB-DEBUG: Sample 22: 0.013331
PTB-DEBUG: Sample 23: 0.013330
PTB-DEBUG: Sample 24: 0.013329
PTB-DEBUG: Sample 25: 0.013331
PTB-DEBUG: Sample 26: 0.013329
PTB-DEBUG: Sample 27: 0.013331
PTB-DEBUG: Sample 28: 0.013329
PTB-DEBUG: Sample 29: 0.013331
PTB-DEBUG: Sample 30: 0.013329
PTB-DEBUG: Sample 31: 0.013331
PTB-DEBUG: Sample 32: 0.013329
PTB-DEBUG: Sample 33: 0.013331
PTB-DEBUG: Sample 34: 0.013328
PTB-DEBUG: Sample 35: 0.013333
PTB-DEBUG: Sample 36: 0.013327
PTB-DEBUG: Sample 37: 0.013331
PTB-DEBUG: Sample 38: 0.013335
PTB-DEBUG: Sample 39: 0.013325
PTB-DEBUG: Sample 40: 0.013330
PTB-DEBUG: Sample 41: 0.013332
PTB-DEBUG: Sample 42: 0.013327
PTB-DEBUG: Sample 43: 0.013331
PTB-DEBUG: Sample 44: 0.013328
PTB-DEBUG: Sample 45: 0.013331
PTB-DEBUG: Sample 46: 0.013330
PTB-DEBUG: Sample 47: 0.013330
PTB-DEBUG: Sample 48: 0.013330
PTB-DEBUG: Sample 49: 0.013331
PTB-DEBUG: Sample 50: 0.013329
PTB-DEBUG: End of calibration data for this run...



PTB-INFO: OpenGL-Renderer is NVIDIA Corporation :: GeForce GTX 480/PCIe/SSE2 :: 4.3.0 NVIDIA 313.26
PTB-INFO: VBL startline = 1024 , VBL Endline = 1065
PTB-INFO: Measured monitor refresh interval from beamposition = 13.329920 ms [75.019208 Hz].
PTB-INFO: Will use beamposition query for accurate Flip time stamping.
PTB-INFO: Measured monitor refresh interval from VBLsync = 13.329778 ms [75.020006 Hz]. (50 valid samples taken, stddev=0.001913 ms.)
PTB-INFO: Reported monitor refresh interval from operating system = 13.329068 ms [75.024002 Hz].
PTB-INFO: Small deviations between reported values are normal and no reason to worry.
PTB-INFO: Using OpenGL GL_TEXTURE_RECTANGLE_EXT extension for efficient high-performance texture mapping...
PTB-INFO: Support for fast OffscreenWindows enabled.

2
Not really. Works for me, and apparently everybody else except you, so it must be something peculiar to your system, or some subtle bug that only manifests itself on your setup. My best hunch would be library version conflicts between Matlab and Gentoo libraries.

You could try if the same problem happens if you run ptb under octave, to see if it is some weird interaction with Matlab. Or if Matlab ships with any of the libraries that are used by our text rendering plugin (e.g, libfreetype, libfontconfig, or libraries those libs depend on, e.g., libz). Matlab often ships its own versions of libs like zlib, c++ libs etc., which are utterly outdated and somewhat incompatible with the system libraries, one of the many benefits of being a paying Mathworks user - I wish "you get what you pay for" would be even remotely correct in Mathworks case. This has caused occassional trouble in the past on different operating systems with different Matlab versions and os versions. Often deleting Matlabs own conflicting libraries helps. E.g., a typical hypothetical error case would be if our plugin would load the systems state of the art libfreetype library and that library in turn would require a state of the art version of libz, but Matlab would override the systems libz with its own ancient version, causing incompatibilities which might cause malfunctions in libfreetype once our text renderer is used. I could imagine that Gentoo with its rolling release and compile-everything-from-source model has especially up to date system libraries, so a Matlab from beginning 2012 might already be prehistoric with its set of libraries.

There's also "valgrind" as memory debugger as a final resort. That should find out any memory management errors, but it is very slow and memory intense with huge applications like Matlab, requiring strong nerves and patience, and it might also produce lots of false positives, so it requires quite a bit of practice and experience and more strong nerves to use. Last time you asked, i think i used it with either octave or matlab -nojvm and minimal test code on a machine with plenty of RAM, as everything else would take way too long to test. After ruling out false positives it didn't find any relevant memory errors in our code on that Ubuntu system, that's why i'm quite certain it is something specific to your system configuration.

-mario

--- In psychtoolbox@yahoogroups.com, Jacob Martin <jacobgmartin@...> wrote:
>
> HI Mario,
>
> I have been trying to get Psychtoolbox to work with Matlab2012a 64bit on my
> 64bit gentoo linux system:
>
> Linux localhost 3.8.3-gentoo-r1 #5 SMP Wed Mar 20 13:10:55 EDT 2013 x86_64
> AMD Opteron(tm) Processor 6168 AuthenticAMD GNU/Linux
>
> I had reported this error to you a while back, but we never got to the
> bottom of it. Here is a link to the earlier thread about this:
>
> http://tech.groups.yahoo.com/group/psychtoolbox/message/12664
>
> Earlier, I had thought it might have something to do with fonts, but
> perhaps not.
>
> I am using the newest Psychtoolbox code as of yesterday (5/22/2013), and
> have reproduced the hang yet again. The memory address reported changes a
> bit each time the crash occurs, but that's to be expected.
>
> I have pasted the various outputs below. Matlab hangs and I have to kill
> -9 it to get rid of it.
>
> Any ideas?
>
> Thanks in advance!
>
> Best regards,
> Jake
>
>
> =========================================================
> Command line output
> =========================================================
> libptbdrawtext_ftgl: External 'DrawText' text rendering plugin initialized.
> libptbdrawtext_ftgl: This plugin uses multiple excellent free software
> libraries to do its work:
> libptbdrawtext_ftgl: OGLFT (http://oglft.sourceforge.net/) the
> OpenGL-FreeType library.
> libptbdrawtext_ftgl: The FreeType-2 (http://freetype.sourceforge.net/)
> library.
> libptbdrawtext_ftgl: The FontConfig (http://www.fontconfig.org) library.
> libptbdrawtext_ftgl: Thanks!
>
> libptbdrawtext_ftgl: Trying to find font that closely matches following
> specification:
> libptbdrawtext_ftgl: Best matching font which will be selected for drawing
> has following specs:
> libptbdrawtext_ftgl: Freetype loaded face 0x7f8238e49f00 with index 0 from
> font file /usr/share/fonts/75dpi/timBI24-ISO8859-1.pcf.gz.
> *** glibc detected *** /mnt/sdc/home/martin/Matlab2012a/bin/glnxa64/MATLAB:
> malloc(): memory corruption: 0x00007f8238e604a0 ***
>
> =========================================================
> Matlab 2012a command line output
> =========================================================
>
> diary on
> oldLevel = Screen('Preference', 'Verbosity', [5]);
> PTB-INFO: Display ':0' : X-Screen 0 : Assigning primary output as 2 with
> RandR-CRTC 0 and GPU-CRTC 0.
> Screen('Preference', 'VisualDebugLevel', 4);
> VBLSyncTest
> ans =
> 0
> RandR: 1280x1024 (0x1e7) 135.0MHz
> h: width 1280 start 1296 end 1440 total 1688 skew 0
> v: height 1024 start 1025 end 1028 total 1066
>
>
> PTB-INFO: This is Psychtoolbox-3 for GNU/Linux X11, under Matlab 64-Bit
> (Version 3.0.10 - Build date: May 22 2013).
> PTB-INFO: Type 'PsychtoolboxVersion' for more detailed version information.
> PTB-INFO: Most parts of the Psychtoolbox distribution are licensed to you
> under terms of the MIT License, with
> PTB-INFO: some restrictions. See file 'License.txt' in the Psychtoolbox
> root folder for the exact licensing conditions.
>
> PTB-INFO: Using new-style override-redirect setup path for onscreen window
> creation.
> PTB-INFO: GLX Visual info depths is 24 bits
> PTB-INFO: Using GLEW version 1.9.0 for automatic detection of OpenGL
> extensions...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890
> Northbridge only dual slot (2x16) PCI-e GFX Hydra part] with class
> x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890
> PCI to PCI bridge (PCI express gpp port B)] with class x00060400 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890
> PCI to PCI bridge (PCI express gpp port H)] with class x00060400 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI RD890
> PCI to PCI bridge (external gfx1 port A)] with class x00060400 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode]] with class x00010601 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 USB OHCI0 Controller] with class x000c0310 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0
> USB OHCI1 Controller] with class x000c0310 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 USB EHCI Controller] with class x000c0320 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 USB OHCI0 Controller] with class x000c0310 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SB7x0
> USB OHCI1 Controller] with class x000c0310 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 USB EHCI Controller] with class x000c0320 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SBx00
> SMBus Controller] with class x000c0500 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 IDE Controller] with class x0001018a ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 LPC host controller] with class x00060100 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI SBx00
> PCI to PCI Bridge] with class x00060401 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] nee ATI
> SB7x0/SB8x0/SB9x0 USB OHCI2 Controller] with class x000c0310 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor HyperTransport Configuration] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor Address Map] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor DRAM Controller] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor Miscellaneous Control] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor Link Control] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor HyperTransport Configuration] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor Address Map] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor DRAM Controller] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor Miscellaneous Control] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [Advanced Micro Devices [AMD] Family 10h
> Processor Link Control] with class x00060000 ...
> PTB-DEBUG: Checking PCI device [ASPEED Technology, Inc. ASPEED Graphics
> Family] with class x00030000 ...
> PTB-DEBUG: Checking PCI device [LSI Corporation FW322/323 [TrueFire] 1394a
> Controller] with class x000c0010 ...
> PTB-DEBUG: Checking PCI device [Intel Corporation 82574L Gigabit Network
> Connection] with class x00020000 ...
> PTB-DEBUG: Checking PCI device [Intel Corporation 82574L Gigabit Network
> Connection] with class x00020000 ...
> PTB-DEBUG: Checking PCI device [NVIDIA Corporation GF100 [GeForce GTX 480]]
> with class x00030000 ...
> PTB-INFO: NVIDIA Corporation - GF100 [GeForce GTX 480] GPU found. Trying to
> establish low-level access...
> PTB-DEBUG: Mapping GPU BAR address 0xf8000000 ...
> PTB-DEBUG: Mapping 0x2000000 bytes...
> PTB-INFO: Connected to NVidia GF100 [GeForce GTX 480] GPU of NV-c0 family
> with 2 display heads. Beamposition timestamping enabled.
>
>
> OpenGL-Vendor / renderer / version are: NVIDIA Corporation - GeForce GTX
> 480/PCIe/SSE2 - 4.3.0 NVIDIA 313.26
>
>
> OpenGL-Extensions are: GL_AMD_multi_draw_indirect GL_ARB_arrays_of_arrays
> GL_ARB_base_instance GL_ARB_blend_func_extended GL_ARB_clear_buffer_object
> GL_ARB_color_buffer_float GL_ARB_compatibility
> GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth
> GL_ARB_compute_shader GL_ARB_copy_buffer GL_ARB_copy_image
> GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp
> GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_buffers_blend
> GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced
> GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility
> GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location
> GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport
> GL_ARB_fragment_program GL_ARB_fragment_program_shadow
> GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments
> GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4
> GL_ARB_get_program_binary GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64
> GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_
> imaging GL_ARB_instanced_arrays GL_ARB_internalformat_query
> GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata
> GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range
> GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture
> GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pixel_buffer_object
> GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_program_interface_query
> GL_ARB_provoking_vertex GL_ARB_robust_buffer_access_behavior
> GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects
> GL_ARB_seamless_cube_map GL_ARB_separate_shader_objects
> GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding
> GL_ARB_shader_image_load_store GL_ARB_shader_image_size
> GL_ARB_shader_objects GL_ARB_shader_precision
> GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine
> GL_ARB_shader_texture_lod GL_ARB_shading_language_100
> GL_ARB_shading_language_420pack GL_ARB_shading_language_include
> GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_stencil_texturing
> GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_
> texture_border_clamp GL_ARB_texture_buffer_object
> GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range
> GL_ARB_texture_compression GL_ARB_texture_compression_bptc
> GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map
> GL_ARB_texture_cube_map_array GL_ARB_texture_env_add
> GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar
> GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_gather
> GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample
> GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels
> GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg
> GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage
> GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle
> GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2
> GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced
> GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object
> GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object
> GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding
> GL_ARB_vertex_buffer_object GL_ARB_
> vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_2_10_10_10_rev
> GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers
> GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc
> GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform
> GL_EXT_blend_color GL_EXT_blend_equation_separate
> GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract
> GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test
> GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced
> GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit
> GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats
> GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object
> GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4
> GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays
> GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels
> GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_provoking_vertex
> GL_EXT_rescale_normal GL_EXT_
> secondary_color GL_EXT_separate_shader_objects
> GL_EXT_separate_specular_color GL_EXT_shader_image_load_store
> GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap
> GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object
> GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc
> GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc
> GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp
> GL_EXT_texture_env_combine GL_EXT_texture_env_dot3
> GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod
> GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object
> GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB
> GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle
> GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array
> GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_x11_sync_object
> GL_EXT_import_sync_object GL_IBM_rasterpos_clip
> GL_IBM_texture_mirrored_repeat GL_KHR_debug GL_KTX_buffer_region
> GL_NV_blend_square GL_NV_
> compute_program5 GL_NV_conditional_render GL_NV_copy_depth_to_color
> GL_NV_copy_image GL_NV_depth_buffer_float GL_NV_depth_clamp
> GL_NV_draw_texture GL_NV_ES1_1_compatibility GL_NV_explicit_multisample
> GL_NV_fence GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_program
> GL_NV_fragment_program_option GL_NV_fragment_program2
> GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4
> GL_NV_gpu_program4 GL_NV_gpu_program4_1 GL_NV_gpu_program5
> GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_shader5
> GL_NV_half_float GL_NV_light_max_exponent GL_NV_multisample_coverage
> GL_NV_multisample_filter_hint GL_NV_occlusion_query
> GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object
> GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_pixel_data_range
> GL_NV_point_sprite GL_NV_primitive_restart GL_NV_register_combiners
> GL_NV_register_combiners2 GL_NV_shader_atomic_counters
> GL_NV_shader_atomic_float GL_NV_shader_buffer_load
> GL_NV_shader_storage_buffer_object GL_NV_texgen_reflection GL_NV_texture_
> barrier GL_NV_texture_compression_vtc GL_NV_texture_env_combine4
> GL_NV_texture_expand_normal GL_NV_texture_multisample
> GL_NV_texture_rectangle GL_NV_texture_shader GL_NV_texture_shader2
> GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2
> GL_NV_vdpau_interop GL_NV_vertex_array_range GL_NV_vertex_array_range2
> GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory
> GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2
> GL_NV_vertex_program2_option GL_NV_vertex_program3
> GL_NVX_conditional_render GL_NVX_gpu_memory_info GL_SGIS_generate_mipmap
> GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum
>
> PTB-Info: Running on 'The X.Org Foundation' XServer, Vendor release
> 11301000.
> RandR: 1280x1024 (0x1e7) 135.0MHz
> h: width 1280 start 1296 end 1440 total 1688 skew 0
> v: height 1024 start 1025 end 1028 total 1066
> RandR: 1280x1024 (0x1e7) 135.0MHz
> h: width 1280 start 1296 end 1440 total 1688 skew 0
> v: height 1024 start 1025 end 1028 total 1066
> PTB-INFO: Threshold Settings for successfull video refresh calibration are:
> maxStdDev = 0.200000 msecs, maxDeviation = 10.000000 %, minSamples = 50,
> maxDuration = 5.000000 secs.
> PTB-INFO: Screen 0 [head 0]: Applying beamposition corrective offsets:
> vblbias = 40, vbltotal = 1066.
>
>
> PTB-DEBUG: Output of all acquired samples of calibration run follows:
> PTB-DEBUG: Sample 0: 0.000000
> PTB-DEBUG: Sample 1: 0.013323
> PTB-DEBUG: Sample 2: 0.013329
> PTB-DEBUG: Sample 3: 0.013331
> PTB-DEBUG: Sample 4: 0.013328
> PTB-DEBUG: Sample 5: 0.013331
> PTB-DEBUG: Sample 6: 0.013330
> PTB-DEBUG: Sample 7: 0.013331
> PTB-DEBUG: Sample 8: 0.013328
> PTB-DEBUG: Sample 9: 0.013331
> PTB-DEBUG: Sample 10: 0.013330
> PTB-DEBUG: Sample 11: 0.013330
> PTB-DEBUG: Sample 12: 0.013329
> PTB-DEBUG: Sample 13: 0.013330
> PTB-DEBUG: Sample 14: 0.013330
> PTB-DEBUG: Sample 15: 0.013332
> PTB-DEBUG: Sample 16: 0.013328
> PTB-DEBUG: Sample 17: 0.013331
> PTB-DEBUG: Sample 18: 0.013329
> PTB-DEBUG: Sample 19: 0.013330
> PTB-DEBUG: Sample 20: 0.013329
> PTB-DEBUG: Sample 21: 0.013330
> PTB-DEBUG: Sample 22: 0.013331
> PTB-DEBUG: Sample 23: 0.013330
> PTB-DEBUG: Sample 24: 0.013329
> PTB-DEBUG: Sample 25: 0.013331
> PTB-DEBUG: Sample 26: 0.013329
> PTB-DEBUG: Sample 27: 0.013331
> PTB-DEBUG: Sample 28: 0.013329
> PTB-DEBUG: Sample 29: 0.013331
> PTB-DEBUG: Sample 30: 0.013329
> PTB-DEBUG: Sample 31: 0.013331
> PTB-DEBUG: Sample 32: 0.013329
> PTB-DEBUG: Sample 33: 0.013331
> PTB-DEBUG: Sample 34: 0.013328
> PTB-DEBUG: Sample 35: 0.013333
> PTB-DEBUG: Sample 36: 0.013327
> PTB-DEBUG: Sample 37: 0.013331
> PTB-DEBUG: Sample 38: 0.013335
> PTB-DEBUG: Sample 39: 0.013325
> PTB-DEBUG: Sample 40: 0.013330
> PTB-DEBUG: Sample 41: 0.013332
> PTB-DEBUG: Sample 42: 0.013327
> PTB-DEBUG: Sample 43: 0.013331
> PTB-DEBUG: Sample 44: 0.013328
> PTB-DEBUG: Sample 45: 0.013331
> PTB-DEBUG: Sample 46: 0.013330
> PTB-DEBUG: Sample 47: 0.013330
> PTB-DEBUG: Sample 48: 0.013330
> PTB-DEBUG: Sample 49: 0.013331
> PTB-DEBUG: Sample 50: 0.013329
> PTB-DEBUG: End of calibration data for this run...
>
>
>
> PTB-INFO: OpenGL-Renderer is NVIDIA Corporation :: GeForce GTX
> 480/PCIe/SSE2 :: 4.3.0 NVIDIA 313.26
> PTB-INFO: VBL startline = 1024 , VBL Endline = 1065
> PTB-INFO: Measured monitor refresh interval from beamposition = 13.329920
> ms [75.019208 Hz].
> PTB-INFO: Will use beamposition query for accurate Flip time stamping.
> PTB-INFO: Measured monitor refresh interval from VBLsync = 13.329778 ms
> [75.020006 Hz]. (50 valid samples taken, stddev=0.001913 ms.)
> PTB-INFO: Reported monitor refresh interval from operating system =
> 13.329068 ms [75.024002 Hz].
> PTB-INFO: Small deviations between reported values are normal and no reason
> to worry.
> PTB-INFO: Using OpenGL GL_TEXTURE_RECTANGLE_EXT extension for efficient
> high-performance texture mapping...
> PTB-INFO: Support for fast OffscreenWindows enabled.
>