带有跟踪堆栈的Android ANR
“等待锁定未知对象”是什么意思？
"HeapTaskDaemon" daemon prio=5 tid=5 Blocked
| group="system" sCount=1 dsCount=0 obj=0x32c071c0 self=0x557f72c1b0
| sysTid=6892 nice=0 cgrp=top_visible sched=0/0 handle=0x7fa0ffe450
| state=S schedstat=( 53102724244 2289704943 17272 ) utm=4756 stm=554 core=7 HZ=100
| stack=0x7fa0efc000-0x7fa0efe000 stackSize=1037KB
| held mutexes=
kernel: (couldn't read /proc/self/task/6892/stack)
native: #00 pc 0000000000019aa4 /system/lib64/libc.so (syscall+32)
native: #01 pc 000000000013adb8 /system/lib64/libart.so (_ZN3art17ConditionVariable9TimedWaitEPNS_6ThreadEli+164)
native: #02 pc 000000000026ad28 /system/lib64/libart.so (_ZN3art2gc13TaskProcessor7GetTaskEPNS_6ThreadE+228)
native: #03 pc 000000000026b32c /system/lib64/libart.so (_ZN3art2gc13TaskProcessor11RunAllTasksEPNS_6ThreadE+120)
native: #04 pc 000000000000054c /data/dalvik-cache/arm64/system@framework@boot.oat (Java_dalvik_system_VMRuntime_runHeapTasks__+128)
at dalvik.system.VMRuntime.runHeapTasks(Native method)
- waiting to lock an unknown object
at java.lang.Daemons$HeapTaskDaemon.run(Daemons.java:355)
at java.lang.Thread.run(Thread.java:833)