解锁时有概率出现卡死
时间：10-02
整理：3721RD
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现象描述： 软件版本72 4.2 解锁时有概率出现卡死，按键触屏都无效，也不重启，只能复位，但是adb 可以连接。 log显示如下，是不是驱动哪里有问题呢?
06-10 15:40:21.687 31273-31289/? E/ion﹕ open /dev/ion failed！
06-10 15:40:21.687 31273-31289/? E/[Gralloc-ERROR]﹕ int gralloc_register_buffer(const gralloc_module_t*, buffer_handle_t):141 Could not open ion device for handle: 0x5accf3d8
06-10 15:40:21.687 31273-31289/? E/GraphicBuffer﹕ unflatten: registerBuffer failed: Too many open files (-24)
06-10 15:40:21.692 31273-31289/? E/ion﹕ ioctl c0084907 failed with code -1: Bad file number
06-10 15:40:21.692 31273-31289/? A/libc﹕ Fatal signal 11 (SIGSEGV) at 0x00000074 (code=1), thread 31289 (UI)
06-10 15:40:21.692 31273-31289/? A/libc﹕ Unable to open connection to debuggerd: Too many open files
06-10 15:40:21.962 9404-9404/? E/linker﹕ load_library(linker.cpp:757): library "/system/lib/libneTCMdiface.so" not found
06-10 15:40:22.848 9405-9405/? E/Trace﹕ error opening trace file: No such file or directory (2)
06-10 15:40:23.313 9405-9405/? E/MediaProfiles﹕ FrontCAMERALevels Setting
06-10 15:40:27.371 9619-9619/? E/BatteryService﹕ wirelessOnlinePath not found
06-10 15:40:27.666 133-133/? E/ServiceManager﹕ add_service('sensorservice',0x12) uid=1000 - ALREADY REGISTERED, OVERRIDE
06-10 15:40:29.189 9403-9403/? E/linker﹕ load_library(linker.cpp:757): library "/system/lib/soundfx/libloudnesswrapper_mtk.so" not found
06-10 15:40:29.204 9403-9403/? E/AudioMTKHardware﹕ Newmode and Oldmode is the same！
06-10 15:42:21.019 9652-9652/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:21.501 9686-9686/? E/LCDc_cap﹕ [DDMSCap]pmem_alloc size = 0x00190520, addr = 0x401c9008
06-10 15:42:21.920 9682-9682/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:22.433 9696-9696/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:23.557 9719-9719/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:24.587 9739-9739/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:40:21.687 31273-31289/? E/ion﹕ open /dev/ion failed！
06-10 15:40:21.687 31273-31289/? E/[Gralloc-ERROR]﹕ int gralloc_register_buffer(const gralloc_module_t*, buffer_handle_t):141 Could not open ion device for handle: 0x5accf3d8
06-10 15:40:21.687 31273-31289/? E/GraphicBuffer﹕ unflatten: registerBuffer failed: Too many open files (-24)
06-10 15:40:21.692 31273-31289/? E/ion﹕ ioctl c0084907 failed with code -1: Bad file number
06-10 15:40:21.692 31273-31289/? A/libc﹕ Fatal signal 11 (SIGSEGV) at 0x00000074 (code=1), thread 31289 (UI)
06-10 15:40:21.692 31273-31289/? A/libc﹕ Unable to open connection to debuggerd: Too many open files
06-10 15:40:21.962 9404-9404/? E/linker﹕ load_library(linker.cpp:757): library "/system/lib/libneTCMdiface.so" not found
06-10 15:40:22.848 9405-9405/? E/Trace﹕ error opening trace file: No such file or directory (2)
06-10 15:40:23.313 9405-9405/? E/MediaProfiles﹕ FrontCAMERALevels Setting
06-10 15:40:27.371 9619-9619/? E/BatteryService﹕ wirelessOnlinePath not found
06-10 15:40:27.666 133-133/? E/ServiceManager﹕ add_service('sensorservice',0x12) uid=1000 - ALREADY REGISTERED, OVERRIDE
06-10 15:40:29.189 9403-9403/? E/linker﹕ load_library(linker.cpp:757): library "/system/lib/soundfx/libloudnesswrapper_mtk.so" not found
06-10 15:40:29.204 9403-9403/? E/AudioMTKHardware﹕ Newmode and Oldmode is the same！
06-10 15:42:21.019 9652-9652/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:21.501 9686-9686/? E/LCDc_cap﹕ [DDMSCap]pmem_alloc size = 0x00190520, addr = 0x401c9008
06-10 15:42:21.920 9682-9682/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:22.433 9696-9696/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:23.557 9719-9719/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
06-10 15:42:24.587 9739-9739/? E/JavaBinder﹕ ！ FAILED BINDER TRANSACTION ！
这个ion是什么设备?