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PODebugging SIGKILL on glDrawArrays(). iPhone iOS
 

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  1. PODebugging SIGKILL on glDrawArrays(). iPhone iOS
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    <p>I hope someone can help me to figure out what is going on.</p> <p>I’m developing an iPhone game using <code>cocos2d framework</code>. From time to time I’m getting my code stopped because of <code>SIGKIL</code> signal. If I press “continue” button, the game continues without any issues. The console log is clear (no error or warning messages) I get it on my custom class that draws a texturized rectangle using <code>OpenGL</code>. This code executes about 300 times per second and I get <code>SIGKILL</code> only about one time per 1-2 hours.</p> <p>Here is a piece of code:</p> <pre><code>glColor4f(1.f, 1.f, 1.f, 1.f); i = 1; glBindTexture(GL_TEXTURE_2D, curText); glVertexPointer(2, GL_FLOAT, 0, screenCoord [i]); glTexCoordPointer(2, GL_FLOAT, 0, textureCoord [i]); SIGKIL --&gt; glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); </code></pre> <p>Here is the content of arrays on that moment:</p> <pre><code>(gdb) p *screenCoord[1]@8 $8 = {0, 296, 249.827072, 296, 0, -0, 249.827072, -0} (gdb) p *textureCoord[1]@8 $12 = {0.456224144, 0.29296875, 0.700195312, 0.29296875, 0.456224144, 0.58203125, 0.700195312, 0.58203125} </code></pre> <p>Stack trace:</p> <pre><code>#0 0x123028a7 in &lt;????&gt; () #1 0x12301528 in &lt;????&gt; () #2 0x0a767092 in gldRenderFillPolygonPtr () #3 0x12300185 in &lt;????&gt; () #4 0x0a55c3e1 in gleDrawArraysOrElements_ExecCore () #5 0x0a555280 in glDrawArrays_IMM_Exec () #6 0x01522c7c in glDrawArrays () #7 0x0007e6bd in -[CLScrollingBack draw] at /MyProjects/_ROBOTS/RobotsAttack/AbductedAliens game template/CLScrollingBack.m:430 #8 0x001bfdaa in -[CCNode visit] () #9 0x001bfd7d in -[CCNode visit] () #10 0x001bfd7d in -[CCNode visit] () #11 0x0020f708 in -[CCDirectorIOS drawScene] () #12 0x00211bb4 in -[CCDirectorDisplayLink mainLoop:] () </code></pre> <p>The last lines in the log are:</p> <pre><code>2012-06-20 13:05:27.368 RobotsAttack![9487:207] cocos2d: CCSpriteBatchNode: resizing TextureAtlas capacity from [2] to [4]. 2012-06-20 13:05:27.368 RobotsAttack![9487:207] cocos2d: CCSpriteBatchNode: resizing TextureAtlas capacity from [4] to [6]. Current language: auto; currently objective-c </code></pre> <p>I would be grateful if somebody can tell me how to debug this situation and determine what is going on. </p>
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    1. USMarmot
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    1. CODid you ever figure this out?
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    2. CONo. I just hope that it is only while working with xCode and will not affect real players. Since I've always got it while debugging with device connected to xCode.
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    3. COI get it very occasionally, when running in the simulators on Xcode. But I have never had it crash on me on a device though, although I dont usually leave device connected to Xcode when testing. So my thoughts are also that it is somehow Xcode related.
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