On Sat, Jun 28, 2014 at 01:37:44PM -0500, Bruno Wolff III wrote: > If netconsole is built as a module, you can't use it to capture output > before the module gets loaded. Rebuilding Fedora srpms (to get Fedora > patches) takes pretty long, which makes testing slow. > > I have something particular I am testing now (probably a nouveau related > crash) that crashes for netconsole gets loaded (though I tried to add it to > the initramfs to get it loaded fairly early). I am not sure if it will be > early enough even if it is built in. I won't know until sometime tomorrow. > But if it does get loaded early enough to handle video card related stuff, > it seems like it be worth having built into debug kernels. > _______________________________________________ > kernel mailing list > [email protected] > https://admin.fedoraproject.org/mailman/listinfo/kernel
Even building it all (netconsole+dependent network drivers) isn't typically enough, since you also need to bring the network interface up and assign an ip address to it, which happens fairly late in the boot cycle. If you have a crash that occurs so early that you're thinking about doing this, a RAC device with serial console support is usually a better bet. That said, it would be nice if dracut had a module that allowed you to include netconsole so that you could set it up before you did a switch_root. Neil _______________________________________________ kernel mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/kernel
