Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> writes: > Background: > > When troubleshooting system freeze problems, obtaining SysRq messages > is commonly used. However, sometimes it is impossible to let syslog > daemon save the messages. In that case, serial console can be used. > > However, in already-deployed enterprise servers, it is difficult to > reboot the system in order to add the serial console to the list of > consoles. Also, speak of virtualized servers in the cloud environment, > it may be difficult to add the virtual serial console which would > require FTP-like access to the log files saved on the virtualization > host. > > As I'm working at NTT Open Source Software Center, I'm having > difficulties with obtaining SysRq messages from already-deployed > RHEL 3/4/5/6 servers where the serial console is not attached yet.
For rhel 3 and 4, you can actually configure netconsole to send syslog style messages. Red Hat shipped a userspace package named netdump-server, which will create a directory per IP, and log netconsole messages there. The netdump-0.7.16 source rpm is the latest version I could find, let me know if you want me to put the sources somewhere for you. Cheers, Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
