Red Hat Bugzilla – Bug 159992
Add docs detailing which drivers support netconsole
Last modified: 2007-11-30 17:07:07 EST
From: Jeff Moyer <jmoyer>
Date: Thu, 19 May 2005 10:57:15 -0400
Subject: [taroon patch] Add docs detailing which drivers support netconsole
Status: committed in -32.5.EL
Currently, our support staff tell customers that they can determine which
adapters support netconsole by doing the following:
"A simple way to check what drivers have this capability is to install
the kernel-source package and search the source code in
/usr/src/kernel-<version> for the definition HAVE_POLL_CONTROLLER."
This is so incredibly poor it hurts. Here is a patch that will add the
supported driver list to the Documentation/networking directory, which in
turn gets put into the kernel-doc package.
[updated by petrides on 19-May-2005]
@@ -0,0 +1,26 @@
+The netconsole module provides 3 pieces of functionality:
+ 1) generation of syslog messages which are delivered to a remote syslog
+ 2) generation of netconsole messages which are delivered to a remote
+ netdump server
+ 3) a network kernel crash dump facility
+The configuration for the module is specified in the /etc/sysconfig/netdump
+file, which is self-documented. Once the parameters are specified in that
+provided you have installed the netdump rpm.
+Network drivers must implement a special hook in order to work with
+netconsole. The following drivers implement this functionality, and thus
+can be used in conjunction with netconsole:
A fix for this problem was committed to the RHEL3 U6 patch pool
on 26-May-2005 (in kernel version 2.4.21-32.5.EL).
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.