On Thu, 2006-04-27 at 12:21 -0400, Dave Anderson wrote: Dave, crash shows wrong dis-assembly for even live machine... Thanks, Badari elm3a242:~/crash-4.0-2.23 # ./crash /usr/src/linux/vmlinux crash 4.0-2.23 Copyright (C) 2002, 2003, 2004, 2005, 2006 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005 Fujitsu Limited Copyright (C) 2005 NEC Corporation Copyright (C) 1999, 2002 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"... SYSTEM MAP: /usr/src/linux/System.map DEBUG KERNEL: /usr/src/linux/vmlinux (2.6.16-20-smp) DUMPFILE: /dev/mem CPUS: 2 DATE: Thu Apr 27 02:06:52 2006 UPTIME: 16:29:16 LOAD AVERAGE: 0.07, 0.02, 0.00 TASKS: 64 NODENAME: elm3a242 RELEASE: 2.6.16-20-smp VERSION: #1 SMP Mon Apr 10 04:51:13 UTC 2006 MACHINE: x86_64 (3000 Mhz) MEMORY: 4.6 GB PID: 12798 COMMAND: "crash" TASK: ffff8101235e37d0 [THREAD_INFO: ffff810118742000] CPU: 0 STATE: TASK_RUNNING (ACTIVE) crash> dis sys_read 0xffffffff8017b991 <sys_read>: add %cl,0xffffffffffffff83(%rax) 0xffffffff8017b994 <sys_read+3>: (bad) 0xffffffff8017b995 <sys_read+4>: sbb %cl,0xffffffffffffff89(% rax) 0xffffffff8017b998 <sys_read+7>: callq 0xffffffffdc5916f8 0xffffffff8017b99d <sys_read+12>: pop %r13 0xffffffff8017b99f <sys_read+14>: retq 0xffffffff8017b9a0 <sys_read+15>: mov 1862306(%rip),%eax # 0xffffffff80342448 <files_stat+8> 0xffffffff8017b9a6 <sys_read+21>: retq 0xffffffff8017b9a7 <sys_read+22>: push %rbx 0xffffffff8017b9a8 <sys_read+23>: cmp %rdi,(%rdi) 0xffffffff8017b9ab <sys_read+26>: mov %rdi,%rbx 0xffffffff8017b9ae <sys_read+29>: je 0xffffffff8017b9db <sys_read+74> 0xffffffff8017b9b0 <sys_read+31>: mov $0xffffffff80456b80,%rdi 0xffffffff8017b9b7 <sys_read+38>: callq 0xffffffff802d0aad <__down_interruptible+75> 0xffffffff8017b9bc <sys_read+43>: mov (%rbx),%rdx 0xffffffff8017b9bf <sys_read+46>: mov 0x8(%rbx),%rax 0xffffffff8017b9c3 <sys_read+50>: mov %rax,0x8(%rdx) 0xffffffff8017b9c7 <sys_read+54>: mov %rdx,(%rax) 0xffffffff8017b9ca <sys_read+57>: mov %rbx,0x8(%rbx) 0xffffffff8017b9ce <sys_read+61>: mov %rbx,(%rbx) 0xffffffff8017b9d1 <sys_read+64>: