Android如何调试google breakbad崩溃

我的Android应用程序的一位用户告诉我，该应用程序有时会崩溃，谢天谢地，我设置了一个功能，让他们将logcat“保存”到一个文件中，以便我可以查看

但是这次崩溃没有一个堆栈跟踪，只是这样：

12-02 19:41:10.213  6950  9516 D MYTAG   : task pool-32-thread-13 doing action 1
12-02 19:41:10.219  6950  9526 D HELLO   : task pool-32-thread-14 is going action2
12-02 19:41:10.219  6950  9526 D HELLO   : task pool-32-thread-14 is doing action 1
--------- beginning of crash
12-02 19:41:10.222  6950  9532 F libc    : FORTIFY: FD_SET: file descriptor >= FD_SETSIZE
12-02 19:41:10.245  6950  9550 F libc    : FORTIFY: FD_SET: file descriptor >= FD_SETSIZE
12-02 19:41:10.245  6950  9509 F libc    : FORTIFY: FD_SET: file descriptor >= FD_SETSIZE
12-02 19:41:10.255  6950  9555 F libc    : FORTIFY: FD_SET: file descriptor >= FD_SETSIZE
12-02 19:41:10.257  6950  9516 F libc    : FORTIFY: FD_SET: file descriptor >= FD_SETSIZE
....
[good amount of other logs coming from my app]
...
12-02 19:41:10.263  6950  9526 F libc    : FORTIFY: FD_SET: file descriptor >= FD_SETSIZE
[good amount of other logs coming from my app]
12-02 19:41:10.488  9668  9532 F google-breakpad: -----BEGIN BREAKPAD MICRODUMP-----
12-02 19:41:10.488  9668  9532 F google-breakpad: V WebView:54.0.2840.85
12-02 19:41:10.488  9668  9532 F google-breakpad: O A arm 04 armv7l htc/htc_asia_hk/htc_m8:6.0/MRA58K/683910.1:user/release-keys
12-02 19:41:10.488  9668  9532 F google-breakpad: P webview
12-02 19:41:10.488  9668  9532 F google-breakpad: G OpenGL ES 3.0 V@136.0 AU@ (GIT@I3fa967cfef)|Qualcomm|Adreno (TM) 330
12-02 19:41:10.517  9668  9532 F google-breakpad: H 12C00000 FFFF1000 0169 415E9000 875BA000 0C:3B 0D:1C 0E:1C 0F:58 10:2C 11:1A 12:0E 13:18 14:05 15:06 16:09 17:07 18:0A 19:08 1A:03 1B:01 1E:01
12-02 19:41:10.517  9668  9532 F google-breakpad: S 0 6B12D6F0 6B12D000 00002000
12-02 19:41:10.529  9668  9532 F google-breakpad: S 6B12D000 
...
...
...
2-02 19:41:10.535  9668  9532 F google-breakpad: M B6F79000 00000000 00005000 3AC2FF72A56F89E753909FE87EC9E5B90 app_process32
12-02 19:41:10.536  9668  9532 F google-breakpad: M 73C3F000 02256000 0199B000 000000000000000000000000000000000 boot.oat
12-02 19:41:10.536  9668  9532 F google-breakpad: M 8F512000 00000000 00006000 A818C3C96A1E511DE2821246BCEAEC250 gralloc.msm8974.so
12-02 19:41:10.536  9668  9532 F google-breakpad: M 907EC000 00007000 00004000 000000000000000000000000000000000 1470286953684.dex (deleted)
12-02 19:41:10.536  9668  9532 F google-breakpad: M 91914000 00000000 00009000 716F22A588C1891B19C5583863000E2F0 eglsubAndroid.so
12-02 19:41:10.536  9668  9532 F google-breakpad: M 922E7000 00141000 000F6000 000000000000000000000000000000000 base.odex
12-02 19:41:10.536  9668  9532 F google-breakpad: M 927CE000 00000000 00004000 AD1CA1E05260AD3B0FEBE8137AA109FA0 libwebviewchromium_plat_support.so
12-02 19:41:10.536  9668  9532 F google-breakpad: M 92FB1000 00378000 0027A000 000000000000000000000000000000000 DynamiteModulesA_GmsCore_pro
....
12-02 19:41:10.543  9668  9532 F google-breakpad: M B6EBE000 00000000 0002A000 BB50710C1D4E5E12FAC8358FDBD239300 libbinder.so
12-02 19:41:10.543  9668  9532 F google-breakpad: M B6EF0000 00000000 00008000 77D8F6CE0EA90702417E8C2D00E5DD0C0 liblog.so
12-02 19:41:10.543  9668  9532 F google-breakpad: M B6EFC000 00000000 0001B000 46EBB3252B06AE9C6065FB25F0D0178D0 libutils.so
12-02 19:41:10.543  9668  9532 F google-breakpad: M B6F1A000 00000000 0000F000 7421921873D47767CA00D46D01278D650 libcutils.so
12-02 19:41:10.543  9668  9532 F google-breakpad: M B6F58000 00000000 0001C000 379C3F393D7D0A33EAE953A91AEDF7830 linker
12-02 19:41:10.870  9675  9454 F google-breakpad: -----END BREAKPAD MICRODUMP-----
12-02 19:41:15.164  6950  9454 W google-breakpad: ### ### ### ### ### ### ### ### ### ### ### ### ###
12-02 19:41:15.164  6950  9454 W google-breakpad: Chrome build fingerprint:
12-02 19:41:15.164  6950  9454 W google-breakpad: MY-APP-VERSION
12-02 19:41:15.164  6950  9454 W google-breakpad: BUILD-NUMBER
12-02 19:41:15.164  6950  9454 W google-breakpad: ### ### ### ### ### ### ### ### ### ### ### ### ###
12-02 19:41:19.887  9751  9751 I MultiDex: VM with version 2.1.0 has multidex support
12-02 19:41:19.887  9751  9751 I MultiDex: install
12-02 19:41:19.887  9751  9751 I MultiDex: VM has multidex support, MultiDex support library is disabled.

当崩溃发生时，一个多线程算法正在运行，所以我很难知道哪一行触发了崩溃。正如您所看到的，当崩溃首次启动时，然后algo继续工作，其间有一行打印调试

一些迹象：

• 显示了一个goole mapfragment
• 底部有一个AdMob横幅
• 崩溃发生在多线程算法执行期间
• 特定操作后不会发生崩溃
• 使用otto总线从线程到映射ui进行通信
• 收到事件后，地图将显示或删除地图上的内容
• 我没有内存转储
• 我不知道什么是“libc:FORTIFY:FD_SET”

我如何调试这个？我从哪里开始