Sorry being late..
The url is for getting the kernel dump of the guests under xen host. If
you check my question , I was asking the kdump for the
xen host , not the xen guest.
Thanks again
________________________________
From: "Musayev, Ilya" <imusa...@webmd.net>
To: Srija <swap_proj...@yahoo.com>; Red Hat Enterprise Linux 5 (Tikanga)
discussion mailing-list <rhelv5-list@redhat.com>
Sent: Monday, February 6, 2012 5:40 PM
Subject: RE: [rhelv5-list] kdump issue with rhel5 xen
I guess disregard my suggestion as it applies to plain (non Xen) based setup.
For Xen, read this doc:
https://access.redhat.com/kb/docs/DOC-9864
________________________________________
From: Srija [swap_proj...@yahoo.com]
Sent: Monday, February 06, 2012 5:25 PM
To: Musayev, Ilya; Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
Subject: Re: [rhelv5-list] kdump issue with rhel5 xen
Thanks for your reply.
>Are you able to force a fake kdump?
I could not able to create any kdump. Are you asking to do manually ?
>Also, in past I had to use the initrd file created by kdump when you start the
>services.
Sorry I am not clear here. Would you pl. write here how to start the
services.. with the initrd file
>Needless to say, try limiting the amount of RAM that system boots with
How much you are suggesting to set the limit?
Thanks so much again....
From: "Musayev, Ilya" <imusa...@webmd.net>
To: Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
<rhelv5-list@redhat.com>; Srija <swap_proj...@yahoo.com>
Sent: Monday, February 6, 2012 1:54 PM
Subject: RE: [rhelv5-list] kdump issue with rhel5 xen
Needless to say, try limiting the amount of RAM that system boots with – much
easier to upload and debug. As per previous thread I had on this list you can
use “mem” kernel boot parameter.
From: rhelv5-list-boun...@redhat.com [mailto:rhelv5-list-boun...@redhat.com] On
Behalf Of Musayev, Ilya
Sent: Monday, February 06, 2012 12:38 PM
To: Srija; Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
Subject: Re: [rhelv5-list] kdump issue with rhel5 xen
Are you able to force a fake kdump?
Also, in past I had to use the initrd file created by kdump when you start the
services. For some reason I don’t see that stepped mentioned anywhere in the
DOCs.. Try that as well.
Let me know what happens,
Good luck
-ilya
From: rhelv5-list-boun...@redhat.com<mailto:rhelv5-list-boun...@redhat.com>
[mailto:rhelv5-list-boun...@redhat.com]<mailto:[mailto:rhelv5-list-boun...@redhat.com]>
On Behalf Of Srija
Sent: Friday, February 03, 2012 6:54 PM
To: Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
Subject: [rhelv5-list] kdump issue with rhel5 xen
Hi,
I am facing issues to get kdump in the xen environment.
The server has:
kernel : 2.6.18-274.el5xen #1 SMP Fri Jul 8 17:45:44 EDT 2011 x86_64
x86_64 x86_64 GNU/Linux
memory : 2gb,
cpu : 8 x 2
Installed the rpm as follows:
kernel-2.6.18-274.el5
kernel-xen-2.6.18-274.el5
kernel-xen-devel-2.6.18-274.el5
kernel-doc-2.6.18-274.12.1.el5
kernel-debuginfo-common-2.6.18-274.17.1.el5
kernel-debug-2.6.18-274.17.1.el5
kexec-tools-1.102pre-126.el5_6.6
system-config-kdump-1.0.14-4.el5
crash-4.1.2-8.el5
The /etc/grub.conf as follows:
serial -unit=0 -speed=115200
terminal -timeout=10 serial console
default=3
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.18-274.17.1.el5debug)
root (hd0,0)
kernel /vmlinuz-2.6.18-274.17.1.el5debug ro root=/dev/vgroot_xen/lvroot
console=tty0, 115200
initrd /initrd-2.6.18-274.17.1.el5debug.img
title Red Hat Enterprise Linux Server (2.6.18-274.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-274.el5 ro root=/dev/vgroot_xen/lvroot
console=tty0, 115200
initrd /initrd-2.6.18-274.el5.img
title Red Hat Enterprise Linux Server (2.6.18-274.el5xen)
root (hd0,0)
kernel /xen.gz-2.6.18-274.el5 dom0_mem=2048MB xenheap_megabytes=64
crashkernel=128M@16M<mailto:crashkernel=128M@16M>
module /vmlinuz-2.6.18-274.el5xen ro root=/dev/vgroot_xen/lvroot
console=tty0, 115200
module /initrd-2.6.18-274.el5xen.img
The /etc/kdump.conf file as follows:
path /var/kdump
core_collector makedumpfile -d 31 -c
Crashing the kernel as mentioned in the document:
echo "1" > /proc/sys/kernel/sysrq
echo "c" > /proc/sysrq-trigger
kdump has been started
But server is not generating any crash dump file. Neither getting any log
messages regarding the crash dump.
Any advice is really appreciated.
Thanks again
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