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] 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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