Re: What's the matter with build-in netconsole?

From: Matt Mackall
Date: Thu Dec 16 2004 - 13:47:30 EST

On Thu, Dec 16, 2004 at 06:35:37AM -0800, Park Lee wrote:
> Hi,
> I try to use netconsole to keep Linux kernel oops to
> another machine. I've compiled netconsole into the
> kernel (i.e. select CONFIG_NETCONSOLE=y, when run
> 'make menuconfig').
> After that, I put
> "netconsole=@/,514@xxxxxxxxxxx/00:02:3F:03:D2:59"
> (which is described in
> /usr/src/linux/Documentation/networking/netconsole.txt)

You have to configure a source IP address for built-in netconsole, as
interfaces normally don't have addresses assigned to them until init.

> to the kernel command line as provided by grub and
> rerun my machine with the new compiled kernel.
> But then, when the system is booting, it shows the
> following message:
> ... ...
> Uncompressing Linux... Ok, booting the kernel.
> audit(1103234064.4294965842:0): initialized
> netconsole: eth0 doesn't exist, aborting.
> ... ...
> Then, What's the matter with the build-in
> netconsole? Have I misconfiged the netconsole? and How
> to really run build-in netconsole?

Is your network driver built in? Is it eth0 (you let netconsole use
the default)? Is it initialized before netconsole? Please send your
_entire_ dmesg.

Mathematics is the supreme nostalgia of our time.
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