On 02/04/2014 14:16, Tetsuo Handa wrote: > Struan Bartlett wrote: >> Adds tty driver to netconsole module. When module is loaded, >> creates /dev/netcon0 device and enables support for console=netcon0 >> kernel cmdline option, causing /dev/console output to be sent to >> /dev/netcon0. This allows startup/shutdown script output from >> headless platforms to be logged over (secure) network. > > Excuse me, but I think that the netconsole logging can work only during > network > interfaces (e.g. eth0) are up. Did this patch description assume that the > network interfaces are up before the startup script is started and the > shutdown > script is finished before the network interfaces are down?
Yes it did. I hope I have clarified that in the v3 patch description. In practice, at least in a Debian environment: i) the netconsole module itself is generally capable of raising the network interface when it is loaded by the initramfs init script (which precedes all /etc/init.d/* scripts); ii) very little of consequence tends to happens during shutdown after networking is stopped; iii) equally, it is not usually problematic to disable the networking shutdown script, since it runs on platforms about to be rebooted or powered off. We do this by editing the Default-Stop LSB header in /etc/init.d/networking. > By the way, I uploaded a logger specialized for receiving netconsole messages > to http://sourceforge.jp/projects/akari/scm/svn/tree/head/branches/udplogger/ > . Thank you. I'll check it out. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
