Description of problem: Running /bin/crash against a crash dump and a matching set of debuginfo produces an error, complaining: crash: invalid structure member offset: module_num_symtab Version-Release number of selected component (if applicable): 7.1.4 (crash-7.1.4-1.fc24.x86_64) How reproducible: Always Steps to Reproduce: 1. Trigger a crash dump via the SysRq facility. Running kernel is 4.5.5-300.fc24.x86_64 2. Boot into an interactive session with same kernel from step 1 (4.5.5-300.fc24.x86_64) 3. Run crash against the resulting crash dump, using the debuginfo matching the kernel from steps 1 and 2 (4.5.5-300.fc24.x86_64) Actual results: [root@monkeyfaced ~]# crash /var/crash/127.0.0.1-2016-05-24-16\:02\:41/vmcore /usr/lib/debug/lib/modules/4.5.5-300.fc24.x86_64/vmlinux crash 7.1.4-1.fc24 Copyright (C) 2002-2015 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"... please wait... (gathering module symbol data) crash: invalid structure member offset: module_num_symtab FILE: kernel.c LINE: 3421 FUNCTION: module_init() [/bin/crash] error trace: 6b1bc3 => 46416d => 4df60e => 5317f2 5317f2: OFFSET_verify+146 4df60e: module_init+1406 46416d: main_loop+653 6b1bc3: (undetermined) Expected results: A useful crash dump report :) Additional info: My impetus for installing kdump et al is to help chase down freezes with F24-beta running on a new Thinkpad X1 Carbon, 4th generation. The freezes often time-correlate with plugging in an external monitor via the system's built-in HDMI or Mini DisplayPort interfaces. I'm new to kdump and definitely not a kernel hacker, but comfortable enough and plenty willing to trash the installation or install rawhide, if it will help get this hardware working well.
Try crash-7.1.5: Information for build crash-7.1.5-2.fc25 http://koji.fedoraproject.org/koji/buildinfo?buildID=760294
That did it. Thanks, Dave.