Hi
I have a system running
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:
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:
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?