Hello all I have a question about systemd and syslog and application logs ending up in kmsg (as outputted by dmesg).
My system.conf contains: [Manager] LogTarget=syslog DefaultStandardOutput=syslog DefaultStandardError=syslog and all my services have: StandardOutput=syslog StandardError=inherit multi-user.target.wants contains rsyslog.service and smartd.service, amongst others. My smartd configuration produces a lot of log output. The first smartd output goes into /proc/kmsg as reported by running dmesg: [ 32.484767] smartd[1279]: smartd 5.41 2011-06-09 r3365 [x86_64-linux-3.1.0-0.rc3.git0.0.fc16.x86_64] (local build) [ 32.495808] smartd[1279]: Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net Then rsyslog starts up and takes over from systemd-kmsg-syslogd.service, thus output starts going to /var/log/messages: Sep 4 21:48:31 foo kernel: imklog 5.8.2, log source = /proc/kmsg started. Sep 4 21:48:31 foo rsyslogd: [origin software="rsyslogd" swVersion="5.8.2" x-pid="1850" x-info="http://www.rsyslog.com"] start Sep 4 21:48:31 foo smartd[1279]: Device: /dev/sg20, is SMART capable. Adding to "monitor" list. It seems rsyslog also processes the kernel messages in /proc/kmsg, because /var/log/messages also contains: Sep 4 21:48:31 foo kernel: :80:16.5: reg 10: [mem 0xf7fe4000-0xf7fe7fff 64bit] Sep 4 21:48:31 foo kernel: [ 5.564833] pci 0000:80:00.0: PCI bridge to [bus 81-81] Sep 4 21:48:31 foo kernel: [ 5.570385] pci 0000:80:01.0: PCI bridge to [bus 82-82] However, it seems the very first messages from the kernel are truncated, because the application logs are overflowing the ring buffer. Also, it doesn't seem as if the first application logs end up /var/log/messages though. Should I be seeing these first application logs in /var/log/messages? Also, is there any way to avoid the application logs in /proc/kmsg (to avoid the overflow)? I guess I could add After=rsyslog.service to all my services, but that doesn't seem right. I'm using systemd-34-1.fc16.x86_64 rsyslog-5.8.2-3.fc16.x86_64 rsyslog configuration is the default as shipped with F16. Regards, Albert _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
