Android NDK fault addr deadbaad异常

标签：android   异常   内存   jni   deadbaad   

        这几天在在调试一个Android项目时，遇到了“signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr deadbaad”异常，感觉是jni层操作内存不当引起的，由于是Android新手，没什么经验，而且调试ndk库又很麻烦，于是各种百度，各种搜索，ndk-stack，还是无法定位出现问题的地方，几乎奔溃！后面经过几经波折，单独测试了一些使用频繁的接口，果然，在一个jni接口中，java层传递的jbyteArray长度为1，这就奇怪了，查了下接口文档，tmd，应该是一时疏忽，写错了长度，jni库中需要操作的jbyteArray长度为8，而java层实际定义的长度为1，jni层操作时，拷贝8个字节的数据到jbyteArray，数组越界了，于是修改了长度，问题解决！

        在Android ndk中遇到fault addr deadbaad异常，真的很让人头疼，不过大多数都是内存、指针等问题，往往都是一个疏忽导致了意想不到的BUG，所以在写代码时对于内存、指针的操作还是得特别地注意，像这次遇到的问题，我想大多数人还是会遇到的，所以贴出来跟大家分享一下，也给自己提个醒，下次再掉这坑里，那就埋了自己吧！！！

详细tombstone如下：

Build fingerprint: ‘Android/full_smdk4x12/smdk4x12:4.0.3/JILIN-V1.0.3/eng.root.20150730.174305:eng/test-keys‘
pid: 5318, tid: 5326  >>> com.genvict.m900 <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr deadbaad
 r0 deadbaad  r1 00000001  r2 40000000  r3 00000000
 r4 00000000  r5 00000027  r6 58fd3980  r7 00000062
 r8 40f1e018  r9 0000001a  10 58fd38d4  fp 58fd3918
 ip ffffffff  sp 58fd3898  lr 4009f149  pc 4009b8a8  cpsr 60000030
 d0  42c8000042bb3cef  d1  3ff00000004af418
 d2  0000000000000000  d3  0000000000000000
 d4  0000000000000000  d5  0000000000000000
 d6  00500ff000000000  d7  0000005d4dea3acb
 d8  0000000000000000  d9  0000000000000000
 d10 0000000000000000  d11 0000000000000000
 d12 0000000000000000  d13 0000000000000000
 d14 0000000000000000  d15 0000000000000000
 d16 000000c240acc7e0  d17 3ff0000000000000
 d18 4198acab28000000  d19 0000000000000000
 d20 0000000000000000  d21 0000000000000000
 d22 0000000000000000  d23 0000000000000000
 d24 0000000000000000  d25 0000000000000000
 d26 0000000000000000  d27 0000000000000000
 d28 0000000000000000  d29 0000000000000000
 d30 0000000000000000  d31 0000000000000000
 scr 80000012


         #00  pc 000178a8  /system/lib/libc.so
         #01  pc 00007984  /system/lib/libcutils.so (mspace_merge_objects)
         #02  pc 0007b8a0  /system/lib/libdvm.so (_Z21dvmHeapSourceFreeListjPPv)
         #03  pc 00042d98  /system/lib/libdvm.so
         #04  pc 00032f7c  /system/lib/libdvm.so (_Z22dvmHeapBitmapSweepWalkPK10HeapBitmapS1_jjPFvjPPvS2_ES2_)
         #05  pc 00042d54  /system/lib/libdvm.so (_Z27dvmHeapSweepUnmarkedObjectsbbPjS_)
         #06  pc 000337a8  /system/lib/libdvm.so (_Z25dvmCollectGarbageInternalPK6GcSpec)
         #07  pc 000601a0  /system/lib/libdvm.so (_Z17dvmCollectGarbagev)
         #08  pc 00072bc2  /system/lib/libdvm.so
         #09  pc 00030a90  /system/lib/libdvm.so


code around pc:
4009b888 4623b15c 2c006824 e026d1fb b12368db  \.#F$h.,..&..h#.
4009b898 21014a17 6011447a 48124798 24002527  .J.!zD.`.G.H‘%.$
4009b8a8 f7f47005 2106ee4c eedaf7f5 460aa901  .p..L..!.......F
4009b8b8 f04f2006 94015380 94029303 eaa4f7f5  . O..S..........
4009b8c8 4622a905 f7f52002 f7f4eaae 2106ee38  .."F. ......8..!


code around lr:
4009f128 41f0e92d 46804c0c 447c2600 68a56824  -..A.L.F.&|D$h.h
4009f138 e0076867 300cf9b5 dd022b00 47c04628  gh.....0.+..(F.G
4009f148 35544306 37fff117 6824d5f4 d1ee2c00  .CT5...7..$h.,..
4009f158 e8bd4630 bf0081f0 000283b2 41f0e92d  0F..........-..A
4009f168 fb01b086 9004f602 461f4815 4615460c  .........H.F.F.F


memory map around addr deadbaad:
bed26000-bed47000 [stack]
(no map for address)
ffff0000-ffff1000 [vectors]


stack:
    58fd3858  00000000  
    58fd385c  00000000  
    58fd3860  00000000  
    58fd3864  00000000  
    58fd3868  400c770c  /system/lib/libc.so
    58fd386c  400cc808  
    58fd3870  00000000  
    58fd3874  4009f149  /system/lib/libc.so
    58fd3878  00000000  
    58fd387c  58fd38ac  
    58fd3880  58fd3980  
    58fd3884  00000062  
    58fd3888  40f1e018  /dev/ashmem/dalvik-heap (deleted)
    58fd388c  4009e2b5  /system/lib/libc.so
    58fd3890  df0027ad  
    58fd3894  00000000  
#00 58fd3898  00000000  
    58fd389c  00000000  
    58fd38a0  010467a0  [heap]
    58fd38a4  40fa57c8  /dev/ashmem/dalvik-heap (deleted)
    58fd38a8  00000004  
    58fd38ac  fffffbdf  
    58fd38b0  010467a0  [heap]
    58fd38b4  40fa57c0  /dev/ashmem/dalvik-heap (deleted)
    58fd38b8  40f1e010  /dev/ashmem/dalvik-heap (deleted)
    58fd38bc  40063987  /system/lib/libcutils.so
#01 58fd38c0  010467a0  [heap]
    58fd38c4  40fa5758  /dev/ashmem/dalvik-heap (deleted)
    58fd38c8  58fd3980  
    58fd38cc  408938a3  /system/lib/libdvm.so
#02 58fd38d0  00000062  
    58fd38d4  000004ec  
    58fd38d8  58fd3b5c  
    58fd38dc  00000062  
    58fd38e0  00005c60  
    58fd38e4  00549b00  
    58fd38e8  50a70040  /dev/ashmem/dalvik-bitmap-1 (deleted)
    58fd38ec  000054a2  
    58fd38f0  50ec8040  /dev/ashmem/dalvik-bitmap-2 (deleted)
    58fd38f4  4085ad9c  /system/lib/libdvm.so
#03 58fd38f8  0000546e  
    58fd38fc  58fd3918  
    58fd3900  010467fc  [heap]
    58fd3904  0000222c  
    58fd3908  0000549b  
    58fd390c  4084af80  /system/lib/libdvm.so
#04 58fd3910  80000000  
    58fd3914  58fd3a98  
    58fd3918  40fa3f20  /dev/ashmem/dalvik-heap (deleted)
    58fd391c  40fa3f40  /dev/ashmem/dalvik-heap (deleted)
    58fd3920  40fa3f98  /dev/ashmem/dalvik-heap (deleted)
    58fd3924  40fa3fb8  /dev/ashmem/dalvik-heap (deleted)
    58fd3928  40fa4028  /dev/ashmem/dalvik-heap (deleted)
    58fd392c  40fa4048  /dev/ashmem/dalvik-heap (deleted)
    58fd3930  40fa40b0  /dev/ashmem/dalvik-heap (deleted)
    58fd3934  40fa40d0  /dev/ashmem/dalvik-heap (deleted)
    58fd3938  40fa4148  /dev/ashmem/dalvik-heap (deleted)
    58fd393c  40fa4168  /dev/ashmem/dalvik-heap (deleted)
    58fd3940  40fa41d0  /dev/ashmem/dalvik-heap (deleted)
    58fd3944  40fa41f0  /dev/ashmem/dalvik-heap (deleted)
    58fd3948  40fa4a08  /dev/ashmem/dalvik-heap (deleted)
    58fd394c  40fa4a20  /dev/ashmem/dalvik-heap (deleted)
    58fd3950  40fa4a68  /dev/ashmem/dalvik-heap (deleted)
    58fd3954  40fa4ef8  /dev/ashmem/dalvik-heap (deleted)
    58fd3958  40fa4f60  /dev/ashmem/dalvik-heap (deleted)
    58fd395c  40fa4f98  /dev/ashmem/dalvik-heap (deleted)
    58fd3960  40fa4fb8  /dev/ashmem/dalvik-heap (deleted)
    58fd3964  40fa5010  /dev/ashmem/dalvik-heap (deleted)
    58fd3968  40fa5038  /dev/ashmem/dalvik-heap (deleted)
    58fd396c  40fa5058  /dev/ashmem/dalvik-heap (deleted)
    58fd3970  40fa5068  /dev/ashmem/dalvik-heap (deleted)
    58fd3974  40fa5758  /dev/ashmem/dalvik-heap (deleted)
    58fd3978  40fa5778  /dev/ashmem/dalvik-heap (deleted)
    58fd397c  40fa57b0  /dev/ashmem/dalvik-heap (deleted)
    58fd3980  40fa57c8  /dev/ashmem/dalvik-heap (deleted)
    58fd3984  40fa57e0  /dev/ashmem/dalvik-heap (deleted)
    58fd3988  40fa57f8  /dev/ashmem/dalvik-heap (deleted)
    58fd398c  40fa5810  /dev/ashmem/dalvik-heap (deleted)
    58fd3990  40fa5830  /dev/ashmem/dalvik-heap (deleted)
    58fd3994  40fa5850  /dev/ashmem/dalvik-heap (deleted)
    58fd3998  40fa58e8  /dev/ashmem/dalvik-heap (deleted)
    58fd399c  40fa5900  /dev/ashmem/dalvik-heap (deleted)
    58fd39a0  40fa5920  /dev/ashmem/dalvik-heap (deleted)
    58fd39a4  40fa5938  /dev/ashmem/dalvik-heap (deleted)
    58fd39a8  40fa5950  /dev/ashmem/dalvik-heap (deleted)
    58fd39ac  40fa5968  /dev/ashmem/dalvik-heap (deleted)
    58fd39b0  40fa5a80  /dev/ashmem/dalvik-heap (deleted)
    58fd39b4  40fa5ab8  /dev/ashmem/dalvik-heap (deleted)
    58fd39b8  40fa5ad0  /dev/ashmem/dalvik-heap (deleted)
    58fd39bc  40fa5af0  /dev/ashmem/dalvik-heap (deleted)
    58fd39c0  40fa5b30  /dev/ashmem/dalvik-heap (deleted)
    58fd39c4  40fa5b58  /dev/ashmem/dalvik-heap (deleted)
    58fd39c8  40fa5b78  /dev/ashmem/dalvik-heap (deleted)
    58fd39cc  40fa5bb8  /dev/ashmem/dalvik-heap (deleted)
    58fd39d0  40fa5bd0  /dev/ashmem/dalvik-heap (deleted)
    58fd39d4  40fa5da0  /dev/ashmem/dalvik-heap (deleted)
    58fd39d8  40fa5dc0  /dev/ashmem/dalvik-heap (deleted)
    58fd39dc  40fa5e20  /dev/ashmem/dalvik-heap (deleted)
    58fd39e0  40fa5e38  /dev/ashmem/dalvik-heap (deleted)
    58fd39e4  40fa5e50  /dev/ashmem/dalvik-heap (deleted)
    58fd39e8  40fa5f68  /dev/ashmem/dalvik-heap (deleted)
    58fd39ec  40fa5f88  /dev/ashmem/dalvik-heap (deleted)
    58fd39f0  40fa5fa8  /dev/ashmem/dalvik-heap (deleted)
    58fd39f4  40fa6000  /dev/ashmem/dalvik-heap (deleted)
    58fd39f8  40fa60d0  /dev/ashmem/dalvik-heap (deleted)
    58fd39fc  40fa6100  /dev/ashmem/dalvik-heap (deleted)
    58fd3a00  40fa6118  /dev/ashmem/dalvik-heap (deleted)
    58fd3a04  40fa6148  /dev/ashmem/dalvik-heap (deleted)
    58fd3a08  40fa6168  /dev/ashmem/dalvik-heap (deleted)
    58fd3a0c  40fa6180  /dev/ashmem/dalvik-heap (deleted)
    58fd3a10  40fa61d8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a14  40fa61f8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a18  40fa6358  /dev/ashmem/dalvik-heap (deleted)
    58fd3a1c  40fa63b0  /dev/ashmem/dalvik-heap (deleted)
    58fd3a20  40fa63f8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a24  40fa64c8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a28  40fa64f8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a2c  40fa6518  /dev/ashmem/dalvik-heap (deleted)
    58fd3a30  40fa6548  /dev/ashmem/dalvik-heap (deleted)
    58fd3a34  40fa6570  /dev/ashmem/dalvik-heap (deleted)
    58fd3a38  40fa6590  /dev/ashmem/dalvik-heap (deleted)
    58fd3a3c  40fa6600  /dev/ashmem/dalvik-heap (deleted)
    58fd3a40  40fa6628  /dev/ashmem/dalvik-heap (deleted)
    58fd3a44  40fa6660  /dev/ashmem/dalvik-heap (deleted)
    58fd3a48  40fa6730  /dev/ashmem/dalvik-heap (deleted)
    58fd3a4c  40fa6760  /dev/ashmem/dalvik-heap (deleted)
    58fd3a50  40fa6778  /dev/ashmem/dalvik-heap (deleted)
    58fd3a54  40fa67a8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a58  40fa67c0  /dev/ashmem/dalvik-heap (deleted)
    58fd3a5c  40fa6808  /dev/ashmem/dalvik-heap (deleted)
    58fd3a60  40fa6820  /dev/ashmem/dalvik-heap (deleted)
    58fd3a64  40fa6858  /dev/ashmem/dalvik-heap (deleted)
    58fd3a68  40fa6928  /dev/ashmem/dalvik-heap (deleted)
    58fd3a6c  40fa6958  /dev/ashmem/dalvik-heap (deleted)
    58fd3a70  40fa6970  /dev/ashmem/dalvik-heap (deleted)
    58fd3a74  40fa69a0  /dev/ashmem/dalvik-heap (deleted)
    58fd3a78  40fa69b8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a7c  40fa6a00  /dev/ashmem/dalvik-heap (deleted)
    58fd3a80  40fa6a18  /dev/ashmem/dalvik-heap (deleted)
    58fd3a84  40fa6a60  /dev/ashmem/dalvik-heap (deleted)
    58fd3a88  40fa6b30  /dev/ashmem/dalvik-heap (deleted)
    58fd3a8c  40fa6b60  /dev/ashmem/dalvik-heap (deleted)
    58fd3a90  40fa6b80  /dev/ashmem/dalvik-heap (deleted)
    58fd3a94  40fa6bb0  /dev/ashmem/dalvik-heap (deleted)
    58fd3a98  40fa6bd8  /dev/ashmem/dalvik-heap (deleted)
    58fd3a9c  40fa6bf8  /dev/ashmem/dalvik-heap (deleted)
    58fd3aa0  40f38ac8  /dev/ashmem/dalvik-heap (deleted)
    58fd3aa4  40f38af0  /dev/ashmem/dalvik-heap (deleted)
    58fd3aa8  00000002  
    58fd3aac  400cc474  
    58fd3ab0  00000000  
    58fd3ab4  40098c25  /system/lib/libc.so
    58fd3ab8  400cc4b0  
    58fd3abc  400cc4b0  
    58fd3ac0  011c37a8  [heap]
    58fd3ac4  011c37b8  [heap]
    58fd3ac8  58fd3bb0  
    58fd3acc  400cc498  
    58fd3ad0  00000000  
    58fd3ad4  00000003  
    58fd3ad8  56b124e8  /dev/ashmem/dalvik-LinearAlloc (deleted)
    58fd3adc  00000002  
    58fd3ae0  57786456  /data/dalvik-cache/system@framework@core.jar@classes.dex
    58fd3ae4  00000002  
    58fd3ae8  00000004  
    58fd3aec  00000000  
    58fd3af0  00000004  
    58fd3af4  011c3ab0  [heap]
    58fd3af8  011c3a60  [heap]
    58fd3afc  40881df3  /system/lib/libdvm.so
    58fd3b00  011c37a8  [heap]
    58fd3b04  40099a89  /system/lib/libc.so
    58fd3b08  01046740  [heap]
    58fd3b0c  40f66028  /dev/ashmem/dalvik-heap (deleted)
    58fd3b10  00000000  
    58fd3b14  80000000  
    58fd3b18  40a77f70  /dev/ashmem/dalvik-heap (deleted)
    58fd3b1c  00000000  
    58fd3b20  00000001  
    58fd3b24  58fd3b70  
    58fd3b28  58fd3b68  
    58fd3b2c  010467fc  [heap]
    58fd3b30  58fd3b5c  
    58fd3b34  010467e8  [heap]
    58fd3b38  4085ad74  /system/lib/libdvm.so
    58fd3b3c  4085ad58  /system/lib/libdvm.so
#05 58fd3b40  4085ad74  /system/lib/libdvm.so
    58fd3b44  58fd3b5c  
    58fd3b48  01109058  [heap]
    58fd3b4c  00000002  
    58fd3b50  58fd3bd4  
    58fd3b54  58fd3bd0  
    58fd3b58  408cfc58  /system/lib/libdvm.so
    58fd3b5c  00000185  
    58fd3b60  00005c60  
    58fd3b64  408cff01  /system/lib/libdvm.so
    58fd3b68  40fa7210  /dev/ashmem/dalvik-heap (deleted)
    58fd3b6c  40f1dfff  /dev/ashmem/dalvik-heap (deleted)
    58fd3b70  40f1e000  /dev/ashmem/dalvik-heap (deleted)
    58fd3b74  40a5d000  /dev/ashmem/dalvik-heap (deleted)
    58fd3b78  00b0d57f  
    58fd3b7c  408c8014  /system/lib/libdvm.so
    58fd3b80  01046728  [heap]
    58fd3b84  408caf90  /system/lib/libdvm.so
    58fd3b88  fffffe4c  
    58fd3b8c  00b0d59c  
    58fd3b90  408cfc58  /system/lib/libdvm.so
    58fd3b94  00b0d57f  
    58fd3b98  01046738  [heap]
    58fd3b9c  4084b7ac  /system/lib/libdvm.so
#06 58fd3ba0  01046738  [heap]
    58fd3ba4  00000000  
    58fd3ba8  00000000  
    58fd3bac  56bc08e8  /dev/ashmem/dalvik-LinearAlloc (deleted)
    58fd3bb0  00000000  
    58fd3bb4  010d4348  [heap]
    58fd3bb8  00000004  
    58fd3bbc  40840640  /system/lib/libdvm.so
    58fd3bc0  00000000  
    58fd3bc4  00b0d599  
    58fd3bc8  00b0d581  
    58fd3bcc  7fffffff  
    58fd3bd0  00000004  
    58fd3bd4  011061a0  [heap]
    58fd3bd8  408caf01  /system/lib/libdvm.so
    58fd3bdc  57509f74  /data/dalvik-cache/system@framework@core.jar@classes.dex
    58fd3be0  4002ef34  
    58fd3be4  011061a0  [heap]
    58fd3be8  40acc7e0  /dev/ashmem/dalvik-heap (deleted)
    58fd3bec  40840640  /system/lib/libdvm.so
    58fd3bf0  00000000  
    58fd3bf4  4002ef08  
    58fd3bf8  58fd3d50  
    58fd3bfc  408781a3  /system/lib/libdvm.so
#07 58fd3c00  57509f74  /data/dalvik-cache/system@framework@core.jar@classes.dex
    58fd3c04  4088abc7  /system/lib/libdvm.so
#08 58fd3c08  57509f74  /data/dalvik-cache/system@framework@core.jar@classes.dex
    58fd3c0c  40848a94  /system/lib/libdvm.so
#09 58fd3c10  4002ef1c  
    58fd3c14  011061b0  [heap]
    58fd3c18  56bc08e8  /dev/ashmem/dalvik-LinearAlloc (deleted)
    58fd3c1c  011061a0  [heap]
    58fd3c20  40a618e0  /dev/ashmem/dalvik-heap (deleted)
    58fd3c24  011061a0  [heap]
    58fd3c28  408caf90  /system/lib/libdvm.so
    58fd3c2c  58fd3c50  
    58fd3c30  56b124e8  /dev/ashmem/dalvik-LinearAlloc (deleted)
    58fd3c34  58fd3c94  
    58fd3c38  00000000  
    58fd3c3c  00000000  
    58fd3c40  58fd3d50  
    58fd3c44  4084c234  /system/lib/libdvm.so
    58fd3c48  400cc520  
    58fd3c4c  400cc520  
    58fd3c50  00000000  
    58fd3c54  00000000  
--------- tail end of log /dev/log/main

Android NDK fault addr deadbaad异常

标签：android   异常   内存   jni   deadbaad   

原文地址：http://blog.csdn.net/jayzeng/article/details/48000447