I have made an app for android, app run on my cell phone which connected internet by wifi, my app send udp packets to server as client, but I noticed my app cannot send any udp packet suddenly after run a while. ping gateway in adb shell of this cell phone can get below result:
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
64 bytes from 192.168.2.1: icmp_seq=455 ttl=64 time=82492 ms
64 bytes from 192.168.2.1: icmp_seq=456 ttl=64 time=81489 ms
the netstat show send buffer had been accumulated so much data.
I'm confused what's the reason ping show No buffer space available, how can I distinguish it's fault of my app or other app running in this phone.
udp packets are always sent successfully in code level.
netstat show: enter image description here
