[Crash-utility] crashdc: problem when running crash in kexec environment for SLES11
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Hello,
As I indicated previously, I'm having a problem with running crash from
within the kexec environment of SLES11.
Actually, crash itself runs fine, but its gdb portion seems to be having
problems. Here is a capture of what happens :
Running /usr/bin/run-crashdc-sles11.sh
crashexe : /usr/bin/crash
crashoutput : /root/var/crash/2009-09-29-17:45/crash-data-200909291746.txt
namelist : /root/boot/vmlinux-2.6.27.23-0.1-default
vmcorefile : /root/var/crash/2009-09-29-17:45/vmcore
debuginfofile : /root/usr/lib/debug/boot/vmlinux-2.6.27.23-0.1-default.debug
This portion above is debug info from crashdc.
crash 4.0-7.6
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Red Hat, Inc.
Copyright (C) 2004, 2005, 2006 IBM Corporation
Copyright (C) 1999-2006 Hewlett-Packard Co
Copyright (C) 2005, 2006 Fujitsu Limited
Copyright (C) 2006, 2007 VA Linux Systems Japan K.K.
Copyright (C) 2005 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.
NOTE: stdin: not a tty
cannot determine relocation value: not a live system
gdb /root/usr/lib/debug/boot/vmlinux-2.6.27.23-0.1-default.debug
dlopen failed on 'libthread_db.so.1' - libthread_db.so.1: cannot open shared
object file: No such file or directory
GDB will not be able to debug pthreads.
GNU gdb 6.1
Copyright 2004 Free Software Foundation, Inc.
GDB 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.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu".../usr/bin/crashdc: line 160:
682 Killed $crashexe -d $crashdebug $namelist $debuginfofile $vmcorefile
< $crashcmd
File /root/var/crash/2009-09-29-17:45/crash-data-200909291746.txt has been generated
generated a crash-data file to /root/var/crash/2009-09-29-17:45
..done
Restarting system.
My feeling is that the "dlopen failed on 'libthread_db.so.1'" might be
causing this.
Bernhard Walle might have an idea. Here is what I have in
/etc/sysconfig/kdump :
KDUMP_REQUIRED_PROGRAMS="/bin/basename /usr/bin/crash
/usr/bin/crashdc /usr/bin/run-crashdc-sles11.sh /etc/rc.status /bin/gzip /bin/logger
/usr/bin/gdb /lib/libpthread.so.0 /lib/libthread_db.so.1"
This line allow for inclusion of the listed file into the initramfs file
that gets loaded at kexec time. Maybe crash/gdb is looking for it where
it's not, but right now I'm a bit stucked.
As a side not to Bernhard, is there a way to have kdump stop its
execution while in the kexec kernel ? Just like when it hits an error
and drop to a shell ?
TIA,
- --
Louis Bouchard, Linux Support Engineer
Team lead, EMEA Linux Competency Center,
Linux Ambassador, HP
HP Services 1 Ave du Canada
HP France Z.A. de Courtaboeuf
louis.bouchard(a)hp.com 91 947 Les Ulis
http://www.hp.com/go/linux France
http://www.hp.com/fr
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