Hi All, I have been trying to debug a kernel crash in my module and need the vmcore file for it. It seems that I have correctly setup the machine (kdump etc.) but I am not getting any core in "/var/crash" I run "echo c > /proc/sysrq". Its a virtual machine so I do not get a lot of info on console. Following is the machine information and the configuration files. Please help. MEMINFO ^^^^^^^^^^ [root@localhost ~]# cat /proc/meminfo MemTotal: 756460 kB CRASH KERNEL ^^^^^^^^^^^^^^^^^^^^ [root@localhost ~]# cat /proc/iomem | grep crash -i 26000000-35ffffff : Crash kernel Kernel Version ^^^^^^^^^^^^^^ [root@localhost ~]# uname -r 3.13.3-201.fc20.x86_64 grub.cfg entry ^^^^^^^^^^^^^^ [root@localhost ~]# cat /boot/grub2/grub.cfg | grep crashkernel linux /vmlinuz-3.13.3-201.fc20.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root rhgb quiet LANG=en_US.UTF-8 crashkernel=256M kdump service status ^^^^^^^^^^^^^^^^^^^^^^ [root@localhost ~]# systemctl status kdump kdump.service - Crash recovery kernel arming Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled) Active: active (exited) since Wed 2014-02-19 09:11:37 EST; 1min 39s ago Process: 667 ExecStart=/usr/bin/kdumpctl start (code=exited, status=0/SUCCESS) Main PID: 667 (code=exited, status=0/SUCCESS) CGroup: /system.slice/kdump.service kdump.conf file ^^^^^^^^^^^^^^^^^ [root@localhost ~]# cat /etc/kdump.conf #dracut_args --omit-drivers "cfg80211 snd" --add-drivers "ext2 ext3" path /var/crash core_collector makedumpfile -c -d 31 Kernel boot cmdline ^^^^^^^^^^^^^^^^^^^ [root@localhost ~]# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-3.13.3-201.fc20.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root rhgb quiet LANG=en_US.UTF-8 crashkernel=256M RPMs installed ^^^^^^^^^^^^^^^^^ [root@localhost ~]# rpm -qa | grep kernel | grep 13 kernel-debuginfo-3.13.3-201.fc20.x86_64 kernel-debuginfo-common-x86_64-3.13.3-201.fc20.x86_64 kernel-devel-3.13.3-201.fc20.x86_64 kernel-3.13.3-201.fc20.x86_64 -- [root@localhost ~]# rpm -qa | grep kexec kexec-tools-2.0.4-18.fc20.x86_64 [root@localhost ~]# rpm -qa | grep kdump system-config-kdump-2.0.14-1.fc20.noarch Regards, Rishi Agrawal