Anyone with experience in tcp.c have an idea what's causing this on
our busy database server? Comes from this macro at line 2278:
WARN_ON(sock_owned_by_user(sk));
[726780.788201] WARNING: CPU: 15 PID: 52245 at net/ipv4/tcp.c:2278
tcp_close+0x40f/0x430
[726780.794947] Modules linked in: bin
Can anyone help me understand why a busy database server gets these
kernel warnings? It comes from this WARN_ON macro, apparently because
the socket is still owned by the user process. Why would that happen?
WARN_ON(sock_owned_by_user(sk));
[726780.788201] WARNING: CPU: 15 PID: 52245 at n
After moving a busy mysql database to AWS (and changing distro,
kernel, etc), we see the following kernel warning every few days (on
several hosts):
WARNING: CPU: 33 PID: 75361 at net/ipv4/tcp.c:2278 tcp_close+0x40f/0x430
This is coming from the following section of tcp_close():
/* Now
