On Fri, 19 Sep 2008 00:04:23 +0300 (EEST) "Ilpo Järvinen" <ilpo.jarvinen@xxxxxxxxxxx> wrote: > Anyway, if/when you succeed collecting some strace of the server > processes, please let me know (though putting a full one available might > not be wise thing like I said earlier). After I thought it a bit, it might > be enough the start the strace with -p for all server processes of a > service during a stall and then resolve it after some amount of waiting > with nmap (and hope that strace doesn't resolve it by interfering > something relevant :-), you will see that from the fact that it resolves > without nmap then). That would probably reveal if the processes where > waiting in accept() or not, and if not, where they were. Hi again Ilpo, I waited the whole day for a stall, and fortunatelly it happened while I was stracing dovecot and child processes. The stall happened at 01:11 (at the end). I hope that it has something useful. http://www.abusar.org/strace/dovecot.txt.bz2 I then nmap'ed the server and killed strace. I used the following: strace -t -p 2315 -f -e trace=accept,listen,close,shutdown,select -o dovecot.txt -- -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html