[  501.470952] init: property_set("ro.boottime.ril-daemon", "501363645125") failed: property already set
[  501.536261] init: Service 'ril-daemon' (pid 7422) killed by signal 1
[  501.542643] init: Sending signal 9 to service 'ril-daemon' (pid 7422) process group...
[  501.550642] init: Successfully killed process cgroup uid 1001 pid 7422 in 0ms
[  506.470743] init: starting service 'ril-daemon'...
[  506.481291] init: property_set("ro.boottime.ril-daemon", "506374022125") failed: property already set
[  506.548487] init: Service 'ril-daemon' (pid 7441) killed by signal 1
[  506.554896] init: Sending signal 9 to service 'ril-daemon' (pid 7441) process group...
[  506.562897] init: Successfully killed process cgroup uid 1001 pid 7441 in 0ms
[  511.481119] init: starting service 'ril-daemon'...
[  511.491839] init: property_set("ro.boottime.ril-daemon", "511384557125") failed: property already set
[  511.556483] init: Service 'ril-daemon' (pid 7469) killed by signal 1
[  511.562881] init: Sending signal 9 to service 'ril-daemon' (pid 7469) process group...
[  511.570879] init: Successfully killed process cgroup uid 1001 pid 7469 in 0ms
[  516.491649] init: starting service 'ril-daemon'...
[  516.502000] init: property_set("ro.boottime.ril-daemon", "516394718750") failed: property already set
[  516.568151] init: Service 'ril-daemon' (pid 7488) killed by signal 1
[  516.574528] init: Sending signal 9 to service 'ril-daemon' (pid 7488) process group...
[  516.582520] init: Successfully killed process cgroup uid 1001 pid 7488 in 0ms
[  521.501814] init: starting service 'ril-daemon'...
[  521.512421] init: property_set("ro.boottime.ril-daemon", "521405154000") failed: property already set
[  521.577872] init: Service 'ril-daemon' (pid 7498) killed by signal 1
[  521.584285] init: Sending signal 9 to service 'ril-daemon' (pid 7498) process group...
[  521.592292] init: Successfully killed process cgroup uid 1001 pid 7498 in 0ms

像这样恶心的一直报串口log

解决办法

stop ril-daemon