Summary: -------- - Could collec kdump successfully - GDB could not open the dump file and the dump is not verified Detail Log: =========== elm3b81:/home1 # gdb /home1/badari/linux-2.6.12-rc3/vmlinux core.save 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 "i586-suse-linux"...Using host libthread_db library "/lib/tls/libthread_db.so.1". /home1/core.save: File too large. (gdb) t No stack. Updated: 08-25-2005 =================== The later version of gdb seems to open more than 2GB files properly. [root@llm01 trials]# gdb ./vmlinux-t-0621 kdump-llm05-0621-elf32 GNU gdb Red Hat Linux (6.1post-1.20040607.62rh) 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 "i386-redhat-linux-gnu"...Using host libthread_db library "/lib/tls/libthread_db.so.1". warning: exec file is newer than core file. #0 0xc01010ac in poll_idle () at thread_info.h:89 89 thread_info.h: No such file or directory. in thread_info.h (gdb) bt 10 #0 0xc01010ac in poll_idle () at thread_info.h:89 #1 0xc0101118 in cpu_idle () at arch/i386/kernel/process.c:204 #2 0xc010025b in rest_init () at init/main.c:393 #3 0xc053a8dd in start_kernel () at init/main.c:534 #4 0xc0100199 in is386 () at arch/i386/kernel/head.S:327 #5 0xcccccccc in ?? () #6 0xcccccccc in ?? () #7 0xcccccccc in ?? () #8 0xcccccccc in ?? () #9 0xcccccccc in ?? () (More stack frames follow...) (gdb)