On Sun, 2016-01-17 at 17:30 +0800, Yick Xie wrote: > Hi, > > I updated the ocserv to commit > 3eb2b903ed8c9cd4e10304e319465e1e50424f97(worker: Prevent any frozen > worker processes by killing them on inactivity), and found sometimes > the ocserv worker still become inactive. #A For those "active" > connections, there is no more effective requests(cannot ping > gateway), > even though by tcpdump it's seen there was still some repeated > communication between the server and the client, then after couples > of > minutes the problem was gone and a reconnection was launched > automatically. Note that this patch will not stop the inactive clients from being inactive. That could be because of half closed connection, a client disappearing, kernel bug, ocserv bug etc. The fix will just make sure that these clients/sessions get disconnected eventually. > #B For those already disconnections, the occtl cannot > disconnect them as before said, once again several minutes later this > worker was destoryed automatically. Please have a check with both. That's the expected behavior of the patch. I have still not figured what causes the blocking of a non-blocking socket. > #B Disconnection worker gdb: > > gdb /usr/bin/ocserv 15964 > Loaded symbols for /lib/x86_64-linux-gnu/libnss_files.so.2 > 0x00007fac5291d417 in __libc_writev (fd=0, vector=0x7ffff8899a90, > count=1) at ../sysdeps/unix/sysv/linux/writev.c:49 > 49 ../sysdeps/unix/sysv/linux/writev.c: No such file or > directory. > (gdb) bt full > #0 0x00007fac5291d417 in __libc_writev (fd=0, vector=0x7ffff8899a90, > count=1) at ../sysdeps/unix/sysv/linux/writev.c:49 > resultvar = 12 > result = <optimized out> Will have to check that. regards, Nikos
