Re: "invalid structure member" on linux-4.9-rc1

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----- Original Message -----

> You don't have a configuration choice with x86, as it appears it's an architecture
> requirement.  It's a fairly significant intrusion w/respect to the crash utility,
> so you're pretty much out of luck, for now anyway.
> 
> Any chance you can make your vmlinux/vmcore pair available for me to
> download?
> 
> Dave
> 

Never mind -- they just released a 4.9-based Fedora kernel today, so
I was able to provision this live system to tinker with:

  # uname -r
  4.9.0-0.rc1.git0.2.fc26.x86_64
  # cat /proc/cpuinfo | grep processor
  processor	: 0
  processor	: 6
  processor	: 8
  processor	: 10
  processor	: 16
  processor	: 22
  processor	: 24
  processor	: 26
  # crash
  
  crash 7.1.6
  Copyright (C) 2002-2016  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"...
  
  WARNING: kernel relocated [544MB]: patching 84223 gdb minimal_symbol values
  
  WARNING: cpu 6 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d6f85000
  WARNING: cpu 6 NMI stack: init_tss: 0 orig_ist: ffff92d9d6f86000
  WARNING: cpu 6 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d6f88000
  WARNING: cpu 6 MCE stack: init_tss: 0 orig_ist: ffff92d9d6f89000
  WARNING: cpu 8 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d7005000
  WARNING: cpu 8 NMI stack: init_tss: 0 orig_ist: ffff92d9d7006000
  WARNING: cpu 8 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d7008000
  WARNING: cpu 8 MCE stack: init_tss: 0 orig_ist: ffff92d9d7009000
  WARNING: cpu 10 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d7085000
  WARNING: cpu 10 NMI stack: init_tss: 0 orig_ist: ffff92d9d7086000
  WARNING: cpu 10 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d7088000
  WARNING: cpu 10 MCE stack: init_tss: 0 orig_ist: ffff92d9d7089000
  WARNING: cpu 16 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d7205000
  WARNING: cpu 16 NMI stack: init_tss: 0 orig_ist: ffff92d9d7206000
  WARNING: cpu 16 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d7208000
  WARNING: cpu 16 MCE stack: init_tss: 0 orig_ist: ffff92d9d7209000
  WARNING: cpu 22 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d7385000
  WARNING: cpu 22 NMI stack: init_tss: 0 orig_ist: ffff92d9d7386000
  WARNING: cpu 22 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d7388000
  WARNING: cpu 22 MCE stack: init_tss: 0 orig_ist: ffff92d9d7389000
  WARNING: cpu 24 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d7405000
  WARNING: cpu 24 NMI stack: init_tss: 0 orig_ist: ffff92d9d7406000
  WARNING: cpu 24 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d7408000
  WARNING: cpu 24 MCE stack: init_tss: 0 orig_ist: ffff92d9d7409000
  WARNING: cpu 26 DOUBLEFAULT stack: init_tss: 0 orig_ist: ffff92d9d7485000
  WARNING: cpu 26 NMI stack: init_tss: 0 orig_ist: ffff92d9d7486000
  WARNING: cpu 26 DEBUG stack: init_tss: 0 orig_ist: ffff92d9d7488000
  WARNING: cpu 26 MCE stack: init_tss: 0 orig_ist: ffff92d9d7489000
  crash: cannot determine thread return address
  
  crash: invalid structure member offset: thread_info_cpu
         FILE: task.c  LINE: 2364  FUNCTION: store_context()
  
  [./crash] error trace: 4c4016 => 4bec3d => 52831a => 528299
  
    528299: OFFSET_verify.part.28+73
    52831a: OFFSET_verify+58
    4bec3d: store_context+1021
    4c4016: refresh_hlist_task_table_v3+2246
  
  #

Thanks,
  Dave


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