Hello, I'm running FreeBSD 8.1-STABLE amd64 r215423 on a Q9400 with 6GB RAM. Base system is on a geom_mirror, everything else is inside a few ZFS raidz1 pools. Everything except sshd runs inside jails.
Three days ago I noticed that my audio/icecast2 (2.3.2, from ports) suddenly stopped processing connections. Couldn't stop it conventionally, either; only kill -9 worked. Then the same day Apache's httpd (2.2.18, prefork, built manually) stopped responding; child processes were stuck in <defunct> state and never finished, and the dispatcher didn't spawn any new ones. However in this case 'apachectl restart' worked, and defunct processes were successfully killed. With gdb attached to icecast2, I can see 6 threads running, all of them except two being inside nanosleep(). The main process seems to be stuck at 453 ret = poll(ufds, global.server_sockets, timeout); Step by step execution in gdb inside poll() have somehow unfrozen the process at least once. Any advice on what might be the issue here? There are no issues with the HDDs (or so it seems; nothing in dmesg, and SMART health assessment is "All OK"). I haven't tried to restart the server as it's really unwelcome (and I doubt it's a proper solution). I've also did "make -j8 buildworld" to see if there might be RAM issues (as buildworld usually crashes on faulty RAM). No problems, either. Thanks in advance. P.S. Please CC, I am not subscribed to this list. -- Kamigishi Rei KREI-RIPE
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