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Bug 755458 - netconsole does not work
Summary: netconsole does not work
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: ovirt-node
Version: 6.2
Hardware: Unspecified
OS: Unspecified
urgent
high
Target Milestone: rc
: ---
Assignee: Joey Boggs
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks: 765898
TreeView+ depends on / blocked
 
Reported: 2011-11-21 08:09 UTC by Guohua Ouyang
Modified: 2016-04-26 15:00 UTC (History)
14 users (show)

Fixed In Version: ovirt-node-2.2.1-1.el6
Doc Type: Bug Fix
Doc Text:
Previously, a missing kernel module prevented netconsole from functioning. The missing kernel module has now been included, and netconsole functions correctly.
Clone Of:
Environment:
Last Closed: 2012-07-19 14:16:36 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
dmesg (43.14 KB, text/plain)
2011-11-21 08:10 UTC, Guohua Ouyang 		no flags Details
/etc/sysconfig/netconsole (674 bytes, text/plain)
2011-11-21 08:10 UTC, Guohua Ouyang 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2012:0741 0 normal SHIPPED_LIVE ovirt-node bug fix and enhancement update 2012-07-19 18:10:46 UTC

Description Guohua Ouyang 2011-11-21 08:09:43 UTC 
Description of problem:
After configure netconsole in logging, it does not work, service failed to run.

[root@localhost log]# service netconsole start
Initializing netconsole WARNING: Could not open '/lib/modules/2.6.32-220.el6.x86_64/kernel/fs/configfs/configfs.ko': No such file or directory
FATAL: Error inserting netconsole (/lib/modules/2.6.32-220.el6.x86_64/kernel/drivers/net/netconsole.ko): Unknown symbol in module, or unknown parameter (see dmesg)
                                                           [FAILED]


Version-Release number of selected component (if applicable):
6.2-20111117.0

How reproducible:
100%.

Steps to Reproduce:
1. configure netconsole in logging

Actual results:
it does not work, service failed to run.  .

Expected results:
netconsole work well.

Additional info:
1. Test it on RHEL6.2 (2.6.32-220), after configure and start it, netconsole works well.
2. Remount rhevh-6.2-20111117.0 to read-write and copy configfs.ko from RHEL6.2(2.6.32-220), then netconsole service can be started and works well.
Comment 1 Guohua Ouyang 2011-11-21 08:10:13 UTC 
Created attachment 534734 [details]
dmesg
Comment 2 Guohua Ouyang 2011-11-21 08:10:47 UTC 
Created attachment 534735 [details]
/etc/sysconfig/netconsole
Comment 5 Ying Cui 2011-11-21 12:24:42 UTC 
Tested on 6.2-0.5 6.2-0.12 and 6.2-17.1, the same issue on these builds.
Tested on 6.1-20110926.1.hf739477.el6_1, the same issue on this build.

Remove regression keywords.

And need to confirm whether this bug must fix in 6.2?
Comment 11 Mike Burns 2012-01-12 23:49:10 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
The netconsole was not functional due to a missing kernel module.  The kernel module has not been included
Comment 12 Tim Hildred 2012-01-25 02:39:32 UTC 
    Technical note updated. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    Diffed Contents:
@@ -1 +1,3 @@
-The netconsole was not functional due to a missing kernel module.  The kernel module has not been included+Previously, a missing kernel module caused the netconsole not to function. 
+
+The missing kernel module has now been included, and netconsole functions as expected.
Comment 13 Guohua Ouyang 2012-02-21 07:45:04 UTC 
Verified on 6.3-20120215 build, netconsole service run normal after configure it in log page, and it can send kernel message to remote server.
Comment 14 Stephen Gordon 2012-05-28 16:20:07 UTC 
    Technical note updated. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    Diffed Contents:
@@ -1,3 +1 @@
-Previously, a missing kernel module caused the netconsole not to function. 
+Previously, a missing kernel module prevented netconsole from functioning. The missing kernel module has now been included, and netconsole functions correctly.-
-The missing kernel module has now been included, and netconsole functions as expected.
Comment 16 errata-xmlrpc 2012-07-19 14:16:36 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0741.html
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