Hi All, On my x86 machine with fedora 10, I get an error which says: "crash: read error: kernel virtual address:...". The running kernel is not the Fedora 10 kernel, I have installed a latest vanilla kernel (2.6.27.12) on my machine. On googling, I found that someone has reported a similar problem but which was on Fedora kernel and x86_64 arch. Here is the link to that bug: https://bugzilla.redhat.com/show_bug.cgi?id=237383 In my case, this is the output from the crash command: [root@maveric ~]# crash /lib/modules/`uname -r`/build/vmlinux crash 4.0-7 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. 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"... crash: read error: kernel virtual address: c08b0ae8 type: "cpu_possible_map" WARNING: cannot read cpu_possible_map crash: read error: kernel virtual address: c0801a94 type: "cpu_present_map" WARNING: cannot read cpu_present_map crash: read error: kernel virtual address: c080155c type: "cpu_online_map" WARNING: cannot read cpu_online_map crash: read error: kernel virtual address: c08dd700 type: "xtime" [root@maveric ~]# This is the "uname -a" output: "Linux maveric 2.6.27.12-adhi #1 SMP Fri Feb 20 22:13:54 IST 2009 i686 i686 i386 GNU/Linux" Does anyone has any idea on this? Thanks and regards, Adhiraj Joshi.