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Full Discussion: Unable to run crash utility
Operating Systems Linux Red Hat Unable to run crash utility Post 302978331 by fretagi on Friday 29th of July 2016 05:13:13 AM
Old 07-29-2016
Unable to run crash utility
Hi

I have a system running
Code:
 cat etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)

, and I am trying to check why is crashing a lot of times. I have checked the following files, but with no sucessfull results:

Code:
 ls -lrt *.log
-rw-r--r--. 1 root root   29925 Dec 23  2015 Xorg.9.log
-rw-r--r--. 1 root root       0 Dec 29  2015 sd-client-trace.log
-rw-r--r--. 1 root root   30152 Mar  3 12:23 Xorg.1.log
-rw-------. 1 root root     158 Jun  8 14:54 yum.log
-rw-r--r--. 1 root root    4371 Jul 28 11:45 sd-audit.log
-rw-r--r--. 1 root root   12456 Jul 29 00:55 boot.log
-rw-r--r--. 1 root root   29534 Jul 29 00:55 Xorg.0.log
-rw-r--r--. 1 root root       0 Jul 29 00:55 pm-powersave.log
-rw-r--r--. 1 root root       0 Jul 29 00:55 sd-recovery.log
-rw-r--r--. 1 root root 5890909 Jul 29 00:55 sd-daemon-trace.log
-rw-------. 1 root root 34633052 Jul 29 00:35 messages

I came across a utility called crash, but to running it its proving very difficult, as you can see below:

Code:
 crash /root/lib/modules/3.10.0-123.el7.x86_64.debug /var/crash/127.0.0.1-2016.07.27-04\:13\:18/vmcore

crash 7.0.2-6.el7
Copyright (C) 2002-2013  Red Hat, Inc.
Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
Copyright (C) 1999-2006  Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
Copyright (C) 2005, 2011  NEC Corporation
Copyright (C) 1999, 2002, 2007  Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002  Mission Critical Linux, Inc.
This program is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions.  Enter "help copying" to see the conditions.
This program has absolutely no warranty.  Enter "help warranty" for details.

crash: unable to read dump file /root/lib/modules/3.10.0-123.el7.x86_64.debug
/root/lib/modules/3.10.0-123.el7.x86_64.debug: read: Is a directory
/root/lib/modules/3.10.0-123.el7.x86_64.debug: read: Is a directory
crash: /root/lib/modules/3.10.0-123.el7.x86_64.debug: lseek: Invalid argument
read_maps: unable to read header from /root/lib/modules/3.10.0-123.el7.x86_64.debug, errno = 1
crash: /root/lib/modules/3.10.0-123.el7.x86_64.debug: not a supported file format

Usage:

  crash [OPTION]... NAMELIST MEMORY-IMAGE  (dumpfile form)
  crash [OPTION]... [NAMELIST]             (live system form)

Enter "crash -h" for details.

please can you help?
 

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LEARN ABOUT CENTOS

subscription-manager-gui

subscription-manager-gui(8)				       Subscription Manager				       subscription-manager-gui(8)

NAME

       subscription-manager-gui - Launches the UI client of the Subscription Manager.

SYNOPSIS

       subscription-manager-gui [--register]

DESCRIPTION

       subscription-manager-gui  opens	the  local client tool to manage subscriptions and installed products on Red Hat Enterprise Linux systems.
       The same tasks that can be performed by invoking subscription-manager can be performed in the GUI, including  registering  systems  with  a
       subscription management service, applying and removing subscriptions, and viewing the subscription status of installed products.

       The Subscription Manager UI can also be opened by selecting the Red Hat Subscription Manager item from the Applications > System Tools menu
       in RHEL 5.x or the System > Administration menu in RHEL 6.x.

OPTIONS

       --register
	      If a system has not yet been registered, then the GUI registration page can be opened immediately, as the Subscription  Manager  GUI
	      comes up. This is only relevant for unregistered systems; if this is used after a system is registered, the option is ignored.

REFERENCES

       For  procedures	and  tasks that can be performed in the Subscription Manager UI, check the Gnome help files (by pressing <F1>) or refer to
       the RHEL Subscription  Management  Guide  at  <https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Subscription_Management/1.0/html/Sub-
       scription_Management_Guide/index.html>.

ASSOCIATED FILES

	      * /usr/sbin/subscription-manager-gui

	      * /usr/sbin/subscription-manager

	      * /etc/rhsm/rhsm.conf

BUGS

       This  client  is  part of Red Hat Subscription Manager. To file bugs against this client, go to https://bugzilla.redhat.com, and select Red
       Hat > Red Hat Enterprise Linux > subscription-manager.

AUTHORS

       Deon Lackey, <dlackey@redhat.com>.

COPYRIGHT

       Copyright (c) 2010-2012 Red Hat, Inc. This is licensed under the GNU General Public License, version 2 (GPLv2). A copy of this  license	is
       available at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.

version 1.2							 December 18, 2012				       subscription-manager-gui(8)
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