Android10 设备死机的问题分析和解决

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已于 2024-12-03 19:03:55 修改

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于 2024-12-03 18:54:07 首次发布

本文链接：https://blog.youkuaiyun.com/nysin/article/details/144219822

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最近客户反馈一个问题，设备偶现死机。最后解决，在此记录。

一死机的现象

设备死机，或者黑屏任何操作无响应，无法点亮屏幕；或亮屏任何操作无响应。只能断电重启。

二死机的类型

逻辑卡顿(block)
死循环 (Deadloop)
死锁 (Deadlock)

这次根据结果先说结论是死锁导致死机。

三死机问题分析

1 死机现象的梳理

客户反馈死机问题，暂无提供可复现的逻辑步骤，属于随机发生。这部使用monkey压测，出现死机行为，分析日志，每次都有不同，无法定位原因。

2 死机日志

1）日志分析一

1 开启了ylog开关后复现，都能捕获日志，有些日志就是普通的日志，有日志捕获死机日常。日志结构如下：

2 左侧文件夹traces就是死机log。分析log如下：

0-android.log日志文件中 看到进程全部挂掉，系统死亡。日志如下
M0164CC  11-21 11:50:59.424   366   366 I SPRDHWComposer: HWCDisplay::present_display <785>: No job to commit, return ERR_NO_JOB
M0164CD  11-21 11:50:59.417   249   249 I ServiceManager: service 'netstats' died
M0164CE  11-21 11:50:59.427   480  5944 D BufferPoolAccessor: bufferpool2 0xa7070110 : 0(0 size) total buffers - 0(0 size) used buffers - 7/10 (recycle/alloc) - 3/9 (fetch/transfer)
M0164CF  11-21 11:50:59.427   480  5939 D BufferPoolAccessor: bufferpool2 0xa706fe10 : 0(0 size) total buffers - 0(0 size) used buffers - 8/10 (recycle/alloc) - 2/9 (fetch/transfer)
M0164D0  11-21 11:50:59.427   480  5908 D BufferPoolAccessor: bufferpool2 0xa7070310 : 0(0 size) total buffers - 0(0 size) used buffers - 13/15 (recycle/alloc) - 2/14 (fetch/transfer)
M0164D1  11-21 11:50:59.427   249   249 I ServiceManager: service 'persistent_data_block' died
M0164D2  11-21 11:50:59.428   249   249 I ServiceManager: service 'netpolicy' died
M0164D3  11-21 11:50:59.428   249   249 I ServiceManager: service 'wifi' died
M0164D4  11-21 11:50:59.428   249   249 I ServiceManager: service 'wifiscanner' died
M0164D5  11-21 11:50:59.428   249   249 I ServiceManager: service 'wifip2p' died
M0164D6  11-21 11:50:59.428   249   249 I ServiceManager: service 'notification' died
M0164D7  11-21 11:50:59.428   249   249 I ServiceManager: service 'devicestoragemonitor' died
M0164D8  11-21 11:50:59.428   249   249 I ServiceManager: service 'location' died
M0164D9  11-21 11:50:59.428   249   249 I ServiceManager: service 'country_detector' died
M0164DA  11-21 11:50:59.428   249   249 I ServiceManager: service 'time_detector' died
M0164DB  11-21 11:50:59.428   249   249 I ServiceManager: service 'search' died
M0164DC  11-21 11:50:59.428   249   249 I ServiceManager: service 'wallpaper' died
M0164DD  11-21 11:50:59.428   249   249 I ServiceManager: service 'audio' died
M0164DE  11-21 11:50:59.429   249   249 I ServiceManager: service 'broadcastradio' died
M0164DF  11-21 11:50:59.429   249   249 I ServiceManager: service 'DockObserver' died
M0164E0  11-21 11:50:59.429   249   249 I ServiceManager: service 'midi' died
M0164E1  11-21 11:50:59.429   249   249 I ServiceManager: service 'adb' died
M0164E2  11-21 11:50:59.429   249   249 I ServiceManager: service 'usb' died
M0164E3  11-21 11:50:59.429   249   249 I ServiceManager: service 'serial' died
M0164E4  11-21 11:50:59.429   249   249 I ServiceManager: service 'hardware_properties' died
M0164E5  11-21 11:50:59.429   480   480 D BufferPoolAccessor: bufferpool2 0xa706fd10 : 0(0 size) total buffers - 0(0 size) used buffers - 5/7 (recycle/alloc) - 2/6 (fetch/transfer)
M0164E6  11-21 11:50:59.429   249   249 I ServiceManager: service 'color_display' died
M0164E7  11-21 11:50:59.429  5930  8561 I AudioTrack: pause
M0164E8  11-21 11:50:59.429   480   480 D BufferPoolAccessor: Destruction - bufferpool2 0xa706fd10 cached: 0/0M, 0/0% in use; allocs: 7, 71% recycled; transfers: 6, 67% unfetced
M0164E9  11-21 11:50:59.429   249   249 I ServiceManager: service 'jobscheduler' died
M0164EA  11-21 11:50:59.429   249   249 I ServiceManager: service 'soundtrigger' died
M0164EB  11-21 11:50:59.429   249   249 I ServiceManager: service 'trust' died
M0164EC  11-21 11:50:59.429   249   249 I ServiceManager: service 'backup' died
M0164ED  11-21 11:50:59.429   249   249 I ServiceManager: service 'appwidget' died
M0164EE  11-21 11:50:59.429   249   249 I ServiceManager: service 'role' died
M0164EF  11-21 11:50:59.429   249   249 I ServiceManager: service 'voiceinteraction' died
M0164F0  11-21 11:50:59.429   249   249 I ServiceManager: service 'diskstats' died
M0164F1  11-21 11:50:59.429   249   249 I ServiceManager: service 'runtime' died
M0164F2  11-21 11:50:59.429   480  5944 D BufferPoolAccessor: bufferpool2 0xa7070210 : 0(0 size) total buffers - 0(0 size) used buffers - 11/15 (recycle/alloc) - 4/14 (fetch/transfer)
M0164F3  11-21 11:50:59.429   249   249 I ServiceManager: service 'network_time_update_service' died
M0164F4  11-21 11:50:59.429   480  5944 D BufferPoolAccessor: Destruction - bufferpool2 0xa7070210 cached: 0/0M, 0/0% in use; allocs: 15, 73% recycled; transfers: 14, 71% unfetced
M0164F5  11-21 11:50:59.429   249   249 I ServiceManager: service 'dreams' died
M0164F6  11-21 11:50:59.429   249   249 I ServiceManager: service 'graphicsstats' died
M0164F7  11-21 11:50:59.429   249   249 I ServiceManager: service 'print' died
M0164F8  11-21 11:50:59.429   249   249 I ServiceManager: service 'companiondevice' died
M0164F9  11-21 11:50:59.429   249   249 I ServiceManager: service 'restrictions' died
M0164FA  11-21 11:50:59.429   249   249 I ServiceManager: service 'media_session' died
M0164FB  11-21 11:50:59.429   249   249 I ServiceManager: service 'media_resource_monitor' died
M0164FC  11-21 11:50:59.429   249   249 I ServiceManager: service 'media_router' died
M0164FD  11-21 11:50:59.429