[Crash-utility] crash: page excluded: kernel virtual address: ffffffff81e3da50 type: "page_offset_base"

[Dave Anderson]

----- Original Message -----
> Hi,
> 
> I am using the latest crash tool & kernel 4.14 compiled from source, and
> I got the following error message. As I searched, this is fixed in crash
> 7.2.0, but I still have it here. So, is anyone has a clue?

It's always going to be a crap-shoot with very recent upstream kernels,
but you haven't given enough information to determine what the issue is.  

If the vmcore was created by "virsh dump", and the kernel has KASLR enabled, 
then it's just not supported at this time.  Otherwise, perhaps the output of
"crash -d8" may yield some clues.

Dave


 
> 
> [root at IAAS1 crash]# ./crash
> /var/crash/127.0.0.1-2017-11-22-11\:57\:51/vmcore ../linux/vmlinux
> 
> crash 7.2.0++
> Copyright (C) 2002-2017  Red Hat, Inc.
> Copyright (C) 2004, 2005, 2006, 2010  IBM Corporation
> Copyright (C) 1999-2006  Hewlett-Packard Co
> Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
> Copyright (C) 2006, 2007  VA Linux Systems Japan K.K.
> Copyright (C) 2005, 2011  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 (GDB) 7.6
> Copyright (C) 2013 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-unknown-linux-gnu"...
> 
> crash: page excluded: kernel virtual address: ffffffff81e3da50  type:
> "page_offset_base"
> 
> --
> Sincerely,
> Cao jin
> 
> 
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