Blender 2.59 file with texface causes blenderplayer 2.61 to crash #29730

New Issue

Alex Fraser · 2011-12-30T10:01:31+01:00

Alex Fraser commented

2011-12-30 10:01:31 +01:00

Category: Conversion

%%%If a scene contains old texface objects, blenderplayer 2.61 will segfault while loading it. Some texface conversion messages are printed to the console; then, it crashes when trying to access G.main, which is NULL (see attached stack trace).

This is probably an unimportant bug, since the workaround is so simple: load the file in 2.61, and save it. Now that I know the workaround, I would be content with the bug being simply closed.

System info

OS: Ubuntu 11.10 (64-bit)
Blender: r42947 (2.61+)
Video: ATI Mobility Radeon HD 5430 (closed fglrx driver)
CPU: Intel Core i5 U 430%%%

**Category**: Conversion %%%If a scene contains old texface objects, blenderplayer 2.61 will segfault while loading it. Some texface conversion messages are printed to the console; then, it crashes when trying to access G.main, which is NULL (see attached stack trace). This is probably an unimportant bug, since the workaround is so simple: load the file in 2.61, and save it. Now that I know the workaround, I would be content with the bug being simply closed. ## System info OS: Ubuntu 11.10 (64-bit) Blender: r42947 (2.61+) Video: ATI Mobility Radeon HD 5430 (closed fglrx driver) CPU: Intel Core i5 U 430%%%

Alex Fraser commented

2011-12-30 10:01:31 +01:00

Changed status to: 'Open'

Dalai Felinto commented

2012-07-07 20:57:01 +02:00

%%%Hi Alex,
It seems that the problem was fixed. In trunk I get no crashes with blenderplayer.
I'm closing the report now. If the problem is still there (even though there is a known workaround), mind replying? I can re-open the track if need be%%%

%%%Hi Alex, It seems that the problem was fixed. In trunk I get no crashes with blenderplayer. I'm closing the report now. If the problem is still there (even though there is a known workaround), mind replying? I can re-open the track if need be%%%

Alex Fraser commented

2012-07-10 14:43:08 +02:00

%%%Hi Dalai,

Hmm no, it still crashes for me, at the same place. main is null in:

  foreach_nodetree (main=0x0, calldata=0x1fbadb8, func=0xa291f5 <ntree_verify_nodes_cb>), blender/source/blender/nodes/shader/node_shader_tree.c:68

This is in r48799.%%%

%%%Hi Dalai, Hmm no, it still crashes for me, at the same place. main is null in: ``` foreach_nodetree (main=0x0, calldata=0x1fbadb8, func=0xa291f5 <ntree_verify_nodes_cb>), blender/source/blender/nodes/shader/node_shader_tree.c:68 ``` This is in r48799.%%%

Dalai Felinto commented

2012-07-10 19:30:32 +02:00

%%%Hi Alex,
can you retry with a build from builder.blender.org or make sure you remove the entire blender project before rebuilding it?

blenderplayer doesn't update DNA automatically so it may be the problem.
(I don't get this in OSX nor Mitchell in Windows, but I don't believe a linux only problem makes sense here)%%%

%%%Hi Alex, can you retry with a build from builder.blender.org or make sure you remove the entire blender project before rebuilding it? blenderplayer doesn't update DNA automatically so it may be the problem. (I don't get this in OSX nor Mitchell in Windows, but I don't believe a linux only problem makes sense here)%%%

Mitchell Stokes commented

2012-07-10 19:34:28 +02:00

%%%I cannot seem to reproduce the crash using Windows or Arch when using a recent SVN build.%%%

Alex Fraser commented

2012-07-15 06:13:42 +02:00

%%%Mitchell, so you tried it in Arch Linux, using the attached matConveryBug.blend? It happens for me every time. I just confirmed it again with http://builder.blender.org/download/blender-2.63-r48909-linux-glibc27-x86_64.tar.bz2; the text on the console is:

$ ./blender-2.63-r48909-linux-glibc27-x86_64/blenderplayer ~/Downloads/matConvertBug.blend
TexFace Convert: Material "Material.TF.66050" created.
TexFace Convert: Material "Material.TF.131073" created.
Segmentation fault (core dumped)%%%

%%%Mitchell, so you tried it in Arch Linux, using the attached matConveryBug.blend? It happens for me every time. I just confirmed it again with http://builder.blender.org/download/blender-2.63-r48909-linux-glibc27-x86_64.tar.bz2; the text on the console is: $ ./blender-2.63-r48909-linux-glibc27-x86_64/blenderplayer ~/Downloads/matConvertBug.blend TexFace Convert: Material "Material.TF.66050" created. TexFace Convert: Material "Material.TF.131073" created. Segmentation fault (core dumped)%%%

Alex Fraser commented

2012-07-15 07:04:43 +02:00

%%%Attaching a stack trace from current trunk HEAD.%%%

Mitchell Stokes commented

2012-07-15 08:23:01 +02:00

%%%Okay, correction when using the player, I do get a crash in Windows and Linux (Arch). I was testing Blender, and not the player earlier.%%%

Dalai Felinto commented

2012-07-16 17:52:58 +02:00

%%%I reopened then. though I find this a strange bug. My guess is that the material we are creating in the texface conversion code is creating a problem to the stack of materials
thus breaking for (ma= main->mat.first; ma; ma= ma->id.next)%%%

%%%I reopened then. though I find this a strange bug. My guess is that the material we are creating in the texface conversion code is creating a problem to the stack of materials thus breaking for (ma= main->mat.first; ma; ma= ma->id.next)%%%

Dalai Felinto commented

2013-02-22 10:06:03 +01:00

%%%Hi Alex. I'm going to close this.
Basically because the real issue is in the node_shader code (G.main shouldn't be used like this) and it's a pending fix for depsgraph fixes.
Also, no one just go and use a blenderplayer from a new blender. It's expected from the user to use the new blender first (thus saving the file) before deploying it.

Thanks for the report though. (also for my own records, this has nothing to do with texface code changes)%%%

%%%Hi Alex. I'm going to close this. Basically because the real issue is in the node_shader code (G.main shouldn't be used like this) and it's a pending fix for depsgraph fixes. Also, no one just go and use a blenderplayer from a new blender. It's expected from the user to use the new blender first (thus saving the file) before deploying it. Thanks for the report though. (also for my own records, this has nothing to do with texface code changes)%%%

Dalai Felinto commented

2013-02-22 10:06:03 +01:00

Changed status from 'Open' to: 'Archived'

Dalai Felinto closed this issue

2013-02-22 10:06:03 +01:00

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Blender 2.59 file with texface causes blenderplayer 2.61 to crash #29730

System info