Hi Daniel, Your patch is queued for crash-7.1.5: https://github.com/crash-utility/crash/commit/c3413456599161cabc4e910a0ae91dfe5eec3c21 Thanks, Dave ----- Original Message ----- > Hi Dave, > > Sorry for delay but I have missed your email. > > On Thu, Jan 21, 2016 at 04:34:15PM -0500, Dave Anderson wrote: > > > > ----- Original Message ----- > > > > > > Linux kernel commit 054954eb051f35e74b75a566a96fe756015352c8 > > > (xen: switch to linear virtual mapped sparse p2m list), which > > > appeared in 3.19, introduced linear virtual mapped sparse p2m > > > list. If readmem() reads p2m then it access this list using > > > physical addresses. Sadly, VMA to physical address translation > > > in crash requires access to p2m list. This means that we have > > > a chicken and egg problem. In general this issue must be solved > > > by introducing some changes in libxl, Linux kernel and crash > > > (I have added this task to my long TODO list). However, in dom0 > > > case we can use crash_xen_info_t.dom0_pfn_to_mfn_frame_list_list > > > which is available out of the box. So, let's use it and make > > > at least some users happy. > > > > > > Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx> > > > > Hi Daniel, > > > > Can you help me out with a consise changelog entry? As I understand > > it, the crash utility has not supported Xen dom0 and domU dumpfiles > > since the referenced 3.19 commit, and this patch resurrects support > > for dom0 dumpfiles only. Are there issues with live system analysis > > Exactly! > > > as well? > > I am not sure what do you mean by that. If you are asking about > crash commands then it looks that after my fix everything works > as expected. > > > And without the patch, what is the final, fatal error message? > > Here it is: > > crash 7.1.4 > 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"... > > > crash: cannot resolve "p2m_top" > > Daniel > -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
