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Signal 11 (SIGSEGV), code 1 (SEGV_MAPERR)

I am creating a 2D game on Android using OpenGL. I am currently testing and debugging a game on multiple devices. The problem I am facing is a terrible "signal 11" error.

When I play on my Samsung Galaxy Nexus, everything works smoothly, and I can play it for hours without a game throwing any errors. My Nexus is running Android ICS.

Now, when I run it on other devices, I get this signal 11 error. These are the devices that cause the error: - HTC Desire HD (gingerbread cookies) - HTC Desire Z (gingerbread cookies) - HTC Wildfire (gingerbread cookies) - Advent Vega tablet (Vegacomb) - Asus EE Pad Transformer (ice cream sandwich)

I cannot use USB debugging on my Advent Vega, but the other 3 devices that exit this error are being debugged. It seems I need to start my device in order to get additional information about signal 11 error. I was able to root my Galaxy Nexus and my desire for HD.

Since the error always appears at the same moment (when the game just finished loading the textures), I assumed that I can only make one root device to find out the cause of the problem, and then fix it, and test the new version on another device.

At first, I thought it was related to memory management (without freeing up my objects, therefore making a lot of GC requests). Therefore, after several hours of profiling, optimization, testing, etc. I found that this is not a problem. Then I suggested that this has something to do with Thread Safety (one thread is trying to get something from memory where another thread just destroyed the link). But this is also not so.

So now I have an entrenched Desire HD connected to my laptop and I have an Eclipse project open and DDMS is working.

Now, what does logcat say when a game / application crashes?

04-02 13:24:50.561: D/dalvikvm(3526): GC_CONCURRENT freed 739K, 43% free 4225K/7303K, external 1478K/1939K, paused 2ms+4ms 04-02 13:24:50.661: D/dalvikvm(3526): GC_FOR_MALLOC freed 99K, 43% free 4261K/7431K, external 1466K/1939K, paused 29ms 04-02 13:24:50.701: I/DEBUG(3412): debuggerd: 2012-04-02 13:24:50 04-02 13:24:50.701: I/DEBUG(3412): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 04-02 13:24:50.701: I/DEBUG(3412): Build fingerprint: 'vodafone_uk/htc_ace/ace:2.3.5/GRJ90/208029.3:user/release-keys' 04-02 13:24:50.701: I/DEBUG(3412): pid: 3526, tid: 3539 >>> com.more2create.cityisland <<< 04-02 13:24:50.701: I/DEBUG(3412): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0088d410 04-02 13:24:50.701: I/DEBUG(3412): r0 4b89de00 r1 0088d410 r2 00000000 r3 00000000 04-02 13:24:50.701: I/DEBUG(3412): r4 00000000 r5 00000000 r6 00000020 r7 00000001 04-02 13:24:50.701: I/DEBUG(3412): r8 45a98b68 r9 458dbde0 10 0034f598 fp 440b0000 04-02 13:24:50.701: I/DEBUG(3412): ip 806091c8 sp 45a989d0 lr 80602a0c pc afd0d200 cpsr 60000010 04-02 13:24:50.701: I/DEBUG(3412): d0 42a0000000000000 d1 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d2 0000000042200000 d3 4220000042a00000 04-02 13:24:50.701: I/DEBUG(3412): d4 000000003df5c2a0 d5 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d6 0000000000000101 d7 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d8 3f8000003f800000 d9 8000000080000000 04-02 13:24:50.701: I/DEBUG(3412): d10 8000000080000000 d11 3ff0000080000000 04-02 13:24:50.701: I/DEBUG(3412): d12 3f8000003f800000 d13 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d14 0000000000000000 d15 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d16 000172c000000000 d17 7e37e43c8800759c 04-02 13:24:50.701: I/DEBUG(3412): d18 3fff8def8808b024 d19 465aa3f469f40e1c 04-02 13:24:50.701: I/DEBUG(3412): d20 4008000000000000 d21 3fd99a27ad32ddf5 04-02 13:24:50.701: I/DEBUG(3412): d22 3fd24998d6307188 d23 3fcc7288e957b53b 04-02 13:24:50.701: I/DEBUG(3412): d24 3fc74721cad6b0ed d25 3fc39a09d078c69f 04-02 13:24:50.701: I/DEBUG(3412): d26 0000000000000000 d27 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d28 0000000000000000 d29 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): d30 0000000000000000 d31 0000000000000000 04-02 13:24:50.701: I/DEBUG(3412): scr 60000012 04-02 13:24:50.741: I/DEBUG(3412): #00 pc 0000d200 /system/lib/libc.so 04-02 13:24:50.741: I/DEBUG(3412): #01 pc 00002a08 /system/lib/libgsl.so 04-02 13:24:50.741: I/DEBUG(3412): #02 pc 00089e24 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #03 pc 00091f14 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #04 pc 0006087a /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #05 pc 00060942 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #06 pc 00063210 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #07 pc 000835e0 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #08 pc 00014504 /system/lib/egl/libGLESv1_CM_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #09 pc 0001d3c0 /system/lib/egl/libGLESv1_CM_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): #10 pc 0002be40 /system/lib/libandroid_runtime.so 04-02 13:24:50.741: I/DEBUG(3412): #11 pc 00018174 /system/lib/libdvm.so 04-02 13:24:50.741: I/DEBUG(3412): code around pc: 04-02 13:24:50.741: I/DEBUG(3412): afd0d1e0 f5d1f100 e2522040 f400022d f400422d 04-02 13:24:50.741: I/DEBUG(3412): afd0d1f0 2afffff8 e2822040 e2522020 3a000003 04-02 13:24:50.741: I/DEBUG(3412): afd0d200 f421020d e2522020 f400022d 2afffffb 04-02 13:24:50.741: I/DEBUG(3412): afd0d210 e2822020 e3120010 0a000001 f4210a0d 04-02 13:24:50.741: I/DEBUG(3412): afd0d220 f4000a2d e1b0ce82 3a000001 f421070d 04-02 13:24:50.741: I/DEBUG(3412): code around lr: 04-02 13:24:50.741: I/DEBUG(3412): 806029ec e5901008 e0836005 e1560001 8a000006 04-02 13:24:50.741: I/DEBUG(3412): 806029fc e5903000 e1a0100c e0830005 eb00099c 04-02 13:24:50.741: I/DEBUG(3412): 80602a0c e1a00004 e28dd008 e8bd8070 e59f004c 04-02 13:24:50.741: I/DEBUG(3412): 80602a1c e1a02005 e59fc048 e58d1000 e79e0000 04-02 13:24:50.741: I/DEBUG(3412): 80602a2c e08e100c e28000a8 ebfffef8 e3e00000 04-02 13:24:50.741: I/DEBUG(3412): stack: 04-02 13:24:50.741: I/DEBUG(3412): 45a98990 0000000a 04-02 13:24:50.741: I/DEBUG(3412): 45a98994 00000080 04-02 13:24:50.741: I/DEBUG(3412): 45a98998 00494e80 04-02 13:24:50.741: I/DEBUG(3412): 45a9899c 80886cd9 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): 45a989a0 00494e80 04-02 13:24:50.741: I/DEBUG(3412): 45a989a4 00000008 04-02 13:24:50.741: I/DEBUG(3412): 45a989a8 46b2a078 04-02 13:24:50.741: I/DEBUG(3412): 45a989ac 80898f25 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.741: I/DEBUG(3412): 45a989b0 00368360 04-02 13:24:50.741: I/DEBUG(3412): 45a989b4 00000008 04-02 13:24:50.741: I/DEBUG(3412): 45a989b8 00000080 04-02 13:24:50.741: I/DEBUG(3412): 45a989bc 80899041 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:50.751: I/DEBUG(3412): 45a989c0 00000008 04-02 13:24:50.751: I/DEBUG(3412): 45a989c4 00000000 04-02 13:24:50.751: I/DEBUG(3412): 45a989c8 df002777 04-02 13:24:50.751: I/DEBUG(3412): 45a989cc e3a070ad 04-02 13:24:50.751: I/DEBUG(3412): #00 45a989d0 4b89de00 04-02 13:24:50.751: I/DEBUG(3412): 45a989d4 80602a0c /system/lib/libgsl.so 04-02 13:24:50.751: I/DEBUG(3412): #01 45a989d8 00368360 04-02 13:24:50.751: I/DEBUG(3412): 45a989dc 00000020 04-02 13:24:50.751: I/DEBUG(3412): 45a989e0 004aa8e0 04-02 13:24:50.751: I/DEBUG(3412): 45a989e4 00371648 04-02 13:24:50.751: I/DEBUG(3412): 45a989e8 004aa8fc 04-02 13:24:50.751: I/DEBUG(3412): 45a989ec 80889e27 /system/lib/egl/libGLESv2_adreno200.so 04-02 13:24:51.132: I/BootReceiver(1361): Copying /data/tombstones/tombstone_08 to DropBox (SYSTEM_TOMBSTONE) 04-02 13:24:51.142: I/DEBUG(3412): debuggerd committing suicide to free the zombie! 04-02 13:24:51.182: I/DEBUG(3544): debuggerd: Nov 22 2011 21:11:52 04-02 13:24:51.222: D/dalvikvm(1361): GC_FOR_MALLOC freed 551K, 36% free 8894K/13703K, external 1258K/1770K, paused 78ms 04-02 13:24:51.222: V/DeviceStorageMonitorService(1361): freeMemory=1053483008 04-02 13:24:51.232: D/DeviceStorageMonitorService(1361): OoO SMS Memory available. SMS_AVAILABLE_THRESHOLD == 524288 04-02 13:24:51.232: I/DeviceStorageMonitorService(1361): Posting Message again 04-02 13:24:51.292: I/ActivityManager(1361): Process com.more2create.cityisland (pid 3526) has died.

Of course, I searched for it and searched the Internet for possible corrections, but nothing really useful there. People talk about looking in the SO file (in this case libc.so) and finding the line where the application crashes.

Now the problem is that I am starting Windows and do not know how to delve into this problem. I'm just stuck here ...

So my question is actually pretty simple: can someone help me here? Is there any way to delve into this? Can I find out what "# 00 pc 0000d200 / system / lib / libc.so" means?

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3 answers

When Zygote issues a signal of 11, it means that there is some process of accessing the forbidden memory zone. I suggest using android_print to check the zone where the program is accessing and crashing using DDMS.

If you use opengl, remember that opengl works on an independent thread, therefore, inicializate all the variables used by opengl for constructors to avoid such a problem. Try checking the test parsing, and then use your game code.

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If you see SIGSEGV 11, code 1 with a call stack like libgles, the first thing you need to do is check the OpenGL / EGL initialization. Various GPUs on Android may or may not support some u request features during OpenGL initialization. If they do not want, u must check this, find the function that fails, and when it fails to add code that will repeat with the working configuration parameters.

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I had a similar problem and I decided to just click "Build -> Refresh Linked C ++ Library".

Maybe it can be useful to someone else.

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Source: https://habr.com/ru/post/912230/

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