----- "ADITYA KRISHNAN" <princeofporsche@xxxxxxxxx> wrote: > Hi, > Thanks for the help and guidance, I downloaded and ran the latest > version of crash. it gives me the following output: > > > crash 4.0-7.4 > 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 "x86_64-unknown-linux-gnu"...(no debugging > symbols found)... > > > crash: /boot/vmlinux-syms-2.6.16.13-xen: no debugging data available > > > On running gdb /boot/vmlinux-syms-2.6.16.13-xen i got the following > output: > > > > 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 "x86_64-unknown-linux-gnu"...(no debugging > symbols found)... > > > crash: /boot/vmlinux-syms-2.6.16.13-xen: no debugging data available > > > > > GNU gdb Red Hat Linux (6.3.0.0-1.122rh) > 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 "x86_64-redhat-linux-gnu"... > (no debugging symbols found) > Using host libthread_db library "/lib64/libthread_db.so.1". > > > (gdb) > > > The common point being debug info was not found. But when running > crash it says GDB was configured as "x86_64-unknown-linux-gnu" and > when running only gdb it says GDB was configured as > "x86_64-redhat-linux-gnu" The lack of debuginfo is the only issue. The "configured as..." message is irrelevant, as long as the machine type x86_64 is correct. > > This may be a stupid question... but am I right in assuming that crash > will now run if I compile xen again with -g option ? That should be correct. I don't know how your "vmlinux-syms-2.6.16.13-xen" kernel was built, but it's surprising to me that it's got the "syms" string in its name, but was built without -g. But the "(no debugging symbols found)" message from gdb is proof of that. When xensource builds their hypervisor binary, it's debuginfo-full version is called "xen-syms". I would have thought the same would apply to your vmlinux kernel, but I don't know what distribution/procedure is responsible for creating your vmlinux file? Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
