信号 11 (SIGSEGV)，代码 1 (SEGV_MAPERR) [英] signal 11 (SIGSEGV), code 1 (SEGV_MAPERR)
问题描述
我正在使用 OpenGL 在 Android 上创建 2D 游戏.目前我正在多台设备上测试和调试游戏.我面临的问题是可怕的信号 11"错误.
I am creating a 2D game on Android using OpenGL. Currently I am testing and debugging the game on several devices. The problem I am facing, is the terrible "signal 11" error.
当我在我的三星 Galaxy Nexus 上玩游戏时，一切都很顺利，我可以玩几个小时而不会出现任何错误.我的 Nexus 正在运行 Android 4.0 Ice Cream Sandwich.
When I am playing on my Samsung Galaxy Nexus, everything runs smooth, and I can play it for hours without the game throwing any errors. My Nexus is running Android 4.0 Ice Cream Sandwich.
现在，当我在其他设备上运行它时，我收到了这个信号 11 错误.这是引发错误的设备:
Now, when I run it on other devices, I am getting this signal 11 error. This are the devices which throw the error:
- HTC Desire HD(姜饼)
- HTC Desire Z(姜饼)
- HTC Wildfire(姜饼)
- Advent Vega 平板电脑 (Vegacomb)
- 华硕 EE Pad 变压器(冰淇淋三明治)
我无法在 Advent Vega 上使用 USB 调试，但其他 3 个弹出错误的设备是可调试的.看来我需要 root 我的设备以获取有关信号 11 错误的更多信息.我能够 root 我的 Galaxy Nexus 和我的 Desire HD.
I can't use USB debugging on my Advent Vega, but the other 3 devices that pop the error are debuggable. It seems I need to root my device to get some more info about the signal 11 error. I was able to root my Galaxy Nexus and my Desire HD.
由于错误似乎总是在同一时刻出现(当游戏刚刚完成加载纹理时)，我想我可以只用一个有根设备来找出问题的原因，然后修复它，并在另一台设备上测试新版本.
As the error always seems to appear at the same moment (when the game is just finished loading the textures), I supposed I could do with just one rooted device to find out what the cause of the problem is, then fix it, and test the new version on the other device.
首先我认为它与内存管理有关(不释放我的对象，因此执行了很多 GC 请求).所以经过几个小时的分析、优化、测试等，我发现这不是问题.
First I thought it had something to do with memory management (not freeing my objects, therefore performing a lot of GC requests). So after a few hours profiling, optimizing, testing, etc, I found that this was not the problem.
然后我认为它与线程安全有关(一个线程试图从内存中获取某些东西，而另一个线程刚刚破坏了引用).但这似乎也不是这样.
Then I assumed it had something to do with Thread Safety (one thread trying to get something from memory, where another thread has just destroyed the reference). But this doesn't seem to be the case either.
好的，现在我已将根深蒂固的 Desire HD 连接到我的笔记本电脑，并打开了我的 Eclipse 项目并 DDMS 正在运行.
Ok, so now I have my rooted Desire HD wired to my laptop, and I have my Eclipse project open and DDMS running.
现在，当游戏/应用程序崩溃时，logcat 会告诉我什么?
Now, what does logcat tell me when the 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.
当然，我用谷歌搜索了这个，并在互联网上搜索了可能的修复方法，但没有发现任何真正有用的东西.
Of course I googled this, and searched the internet for possible fixes, but found nothing really useful there.
人们正在谈论查看 SO 文件(在本例中为 libc.so)并找到应用程序崩溃的行.
People are talking about looking into the SO file (in this case libc.so) and find the line where the application crashes.
现在，问题是我正在运行 Windows，并且不知道如何更深入地研究这个问题.我只是被困在这里......
Now, the problem is that I am running Windows, and do not know how to dig into this matter any deeper. I am just stuck here...
所以，我的问题实际上很简单:有人可以在这里帮助我吗?有没有办法深入研究这个?我怎样才能知道 #00 pc 0000d200/system/lib/libc.so 是什么意思?
So, my question is actually rather simple: Can anyone assist me here?
Is there some way to dig into this?
How can I find out what #00 pc 0000d200 /system/lib/libc.so means?
推荐答案
当 Zygote 抛出信号 11 时，表示某个进程试图访问禁止的内存区域.我建议使用 android_print 来检查程序尝试访问并失败的区域，使用 DDMS.
When Zygote throws a signal 11, that means some process attempted to access a forbidden memory zone. I suggest use android_print to check the zone where the program tried to access and failed, using DDMS.
如果您使用 OpenGL，请记住它在独立线程中工作，因此请在构造函数上初始化 OpenGL 使用的所有变量以避免此类问题.尝试进行测试，然后使用您的游戏代码.
If you are using OpenGL remember it works in an independent thread, so initialize all variables used by OpenGL on constructors to avoid this kind of problem. Try to test rending a test, then use your game code.
这篇关于信号 11 (SIGSEGV)，代码 1 (SEGV_MAPERR)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
