8:12 p.m.
Hi Dave,
So I try to execute "crash -d8 vmlinux-3.12.49-6-xen.gz" command:
# crash -d8 vmlinux-3.12.49-6-xen.gz
crash 7.1.3
Copyright (C) 2002-2014 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.
get_live_memory_source: /dev/mem
/proc/version:
Linux version 3.12.49-6-xen (geeko@buildhost) (gcc version 4.8.5 (SUSE
Linux) ) #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
/var/tmp/vmlinux-3.12.49-6-xen.gz_L3Bnwm:
Linux version 3.12.49-6-xen (geeko@buildhost) (gcc version 4.8.5 (SUSE
Linux) ) #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
readmem: read_dev_mem() -> /dev/mem
GETBUF(32 -> 0)
NOTE: gnu_debuglink file: vmlinux-3.12.49-6-xen.debug
crc32: 82102e72
GETBUF(25 -> 1)
./vmlinux-3.12.49-6-xen.debug: not readable/found
./.debug/vmlinux-3.12.49-6-xen.debug: not readable/found
/usr/lib/debug/boot/vmlinux-3.12.49-6-xen.debug: CRC matches
FREEBUF(1)
FREEBUF(0)
gdb /usr/lib/debug/boot/vmlinux-3.12.49-6-xen.debug
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"...
GETBUF(248 -> 0)
GETBUF(1500 -> 1)
FREEBUF(1)
FREEBUF(0)
<readmem: ffffffff804d8ae0, KVADDR, "kernel_config_data", 32768, (ROE),
2de9ff0>
<read_dev_mem: addr: ffffffff804d8ae0 paddr: 4d8ae0 cnt: 1312>
<read_dev_mem: addr: ffffffff804d9000 paddr: 4d9000 cnt: 4096>
<read_dev_mem: addr: ffffffff804da000 paddr: 4da000 cnt: 4096>
<read_dev_mem: addr: ffffffff804db000 paddr: 4db000 cnt: 4096>
<read_dev_mem: addr: ffffffff804dc000 paddr: 4dc000 cnt: 4096>
<read_dev_mem: addr: ffffffff804dd000 paddr: 4dd000 cnt: 4096>
<read_dev_mem: addr: ffffffff804de000 paddr: 4de000 cnt: 4096>
<read_dev_mem: addr: ffffffff804df000 paddr: 4df000 cnt: 4096>
<read_dev_mem: addr: ffffffff804e0000 paddr: 4e0000 cnt: 2784>
WARNING: could not find MAGIC_START!
GETBUF(248 -> 0)
FREEBUF(0)
GETBUF(64 -> 0)
<readmem: ffffffff804ce490, KVADDR, "cpu_possible_mask", 8, (FOE),
7ffc963725a8>
<read_dev_mem: addr: ffffffff804ce490 paddr: 4ce490 cnt: 8>
<readmem: ffffffff804ce480, KVADDR, "cpu_present_mask", 8, (FOE),
7ffc963725a8>
<read_dev_mem: addr: ffffffff804ce480 paddr: 4ce480 cnt: 8>
<readmem: ffffffff804ce488, KVADDR, "cpu_online_mask", 8, (FOE),
7ffc963725a8>
<read_dev_mem: addr: ffffffff804ce488 paddr: 4ce488 cnt: 8>
<readmem: ffffffff804ce478, KVADDR, "cpu_active_mask", 8, (FOE),
7ffc963725a8>
<read_dev_mem: addr: ffffffff804ce478 paddr: 4ce478 cnt: 8>
FREEBUF(0)
<readmem: ffffffff809b7548, KVADDR, "phys_to_machine_mapping", 8, (FOE),
d2a2b8>
<read_dev_mem: addr: ffffffff809b7548 paddr: 9b7548 cnt: 8>
<readmem: ffffffff80a56588, KVADDR, "max_pfn", 8, (FOE), d2a2c0>
<read_dev_mem: addr: ffffffff80a56588 paddr: a56588 cnt: 8>
GETBUF(248 -> 0)
FREEBUF(0)
GETBUF(248 -> 0)
FREEBUF(0)
<readmem: ffffffff80a08e38, KVADDR, "timekeeper xtime_sec", 8, (ROE),
7ffc963725c8>
<read_dev_mem: addr: ffffffff80a08e38 paddr: a08e38 cnt: 8>
<readmem: ffffffff808647a4, KVADDR, "init_uts_ns", 390, (ROE), d1a0dc>
<read_dev_mem: addr: ffffffff808647a4 paddr: 8647a4 cnt: 390>
base kernel version: 0.8.0
<readmem: ffffffff804c80c0, KVADDR, "accessible check", 8, (ROE|Q),
7ffc9636f928>
<read_dev_mem: addr: ffffffff804c80c0 paddr: 4c80c0 cnt: 8>
<readmem: ffffffff804c80c0, KVADDR, "read_string characters", 1499,
(ROE|Q), 7ffc9636fc80>
<read_dev_mem: addr: ffffffff804c80c0 paddr: 4c80c0 cnt: 1499>
WARNING: cannot read linux_banner string
/proc/version:
Linux version 3.12.49-6-xen (geeko@buildhost) (gcc version 4.8.5 (SUSE
Linux) ) #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
linux_banner:
crash: /var/tmp/vmlinux-3.12.49-6-xen.gz_L3Bnwm and /dev/mem do not match!
Usage:
crash [OPTION]... NAMELIST MEMORY-IMAGE[@ADDRESS] (dumpfile form)
crash [OPTION]... [NAMELIST] (live system form)
Enter "crash -h" for details.
It is the same result. So does it mean my "vmlinux-3.12.49-6-xen.gz"
isn't right file?
Best Regards
Nan Xiao
On Tue, Nov 17, 2015 at 11:22 PM, Dave Anderson <anderson(a)redhat.com> wrote:
If you simply enter "crash" on the command line in order to run live, a search
is made for a kernel file that contains the /proc/version string, for example:
# cat /proc/version
Linux version 4.4.0-0.rc0.git9.1.fc23.x86_64 (root(a)hp-dl980g7-02.rhts.eng.bos.re
dhat.com) (gcc version 5.1.1 20150618 (Red Hat 5.1.1-4) (GCC) ) #1 SMP Mon Nov 1
6 14:32:21 EST 2015
#
And when running on a live system in that manner, the "NAMELIST" kernel file
needs
to be uncompressed:
$ man crash
CRASH(8)
NAME
crash - Analyze Linux crash dump data or a live system
SYNOPSIS
crash [OPTION]... NAMELIST MEMORY-IMAGE (dumpfile form)
crash [OPTION]... [NAMELIST] (live system form)
... [ cut ] ...
OPTIONS
NAMELIST
This is a pathname to an uncompressed kernel image (a vmlinux file), or
a Xen hypervisor image (a xen-syms file) which has been compiled with
the "-g" option. If using the dumpfile form, a vmlinux file may
be
compressed in either gzip or bzip2 formats.
...
And here it finds the uncompressed vmlinux in one of the search directories,
in this case, in /usr/lib/debug/lib/modules/4.4.0-0.rc0.git9.1.fc23.x86_64:
# crash
crash 7.1.3
Copyright (C) 2002-2014 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"...
KERNEL: /usr/lib/debug/lib/modules/4.4.0-0.rc0.git9.1.fc23.x86_64/vmlinux
DUMPFILE: /dev/crash
CPUS: 160
DATE: Tue Nov 17 09:45:09 2015
UPTIME: 17:53:29
LOAD AVERAGE: 0.08, 0.03, 0.05
TASKS: 1714
NODENAME: hp-dl980g7-02.rhts.eng.bos.redhat.com
RELEASE: 4.4.0-0.rc0.git9.1.fc23.x86_64
VERSION: #1 SMP Mon Nov 16 14:32:21 EST 2015
MACHINE: x86_64 (2260 Mhz)
MEMORY: 1006 GB
PID: 7595
COMMAND: "crash"
TASK: ffff881f6f804700 [THREAD_INFO: ffff881f66888000]
CPU: 41
STATE: TASK_RUNNING (ACTIVE)
crash>
But if the vmlinux file is compressed:
# cd /usr/lib/debug/lib/modules/4.4.0-0.rc0.git9.1.fc23.x86_64
# ls
vmlinux
# gzip vmlinux
# ls
vmlinux.gz
#
It won't find it, and crash normally fails like so:
# crash
crash 7.1.3
Copyright (C) 2002-2014 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.
crash: cannot find booted kernel -- please enter namelist argument
Usage:
crash [OPTION]... NAMELIST MEMORY-IMAGE[@ADDRESS] (dumpfile form)
crash [OPTION]... [NAMELIST] (live system form)
Enter "crash -h" for details.
#
However, I can manually enter the compressed filename:
# crash vmlinux.gz
crash 7.1.3-1.fc23
Copyright (C) 2002-2014 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"...
KERNEL: vmlinux.gz
DUMPFILE: /dev/crash
CPUS: 160
DATE: Tue Nov 17 10:11:42 2015
UPTIME: 18:20:02
LOAD AVERAGE: 0.16, 0.05, 0.06
TASKS: 1714
NODENAME: hp-dl980g7-02.rhts.eng.bos.redhat.com
RELEASE: 4.4.0-0.rc0.git9.1.fc23.x86_64
VERSION: #1 SMP Mon Nov 16 14:32:21 EST 2015
MACHINE: x86_64 (2260 Mhz)
MEMORY: 1006 GB
PID: 7660
COMMAND: "crash"
TASK: ffff881f66888c40 [THREAD_INFO: ffff881f6e998000]
CPU: 59
STATE: TASK_RUNNING (ACTIVE)
crash>
Dave
----- Original Message -----
> Hi Dave,
>
> # crash -d8
>
> crash 7.1.3
> Copyright (C) 2002-2014 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.
>
>
> find_booted_kernel: search for [Linux version 3.12.49-6-xen
> (geeko@buildhost) (gcc version 4.8.5 (SUSE Linux) ) #1 SMP Mon Oct 26
> 16:05:37 UTC 2015 (11560c3)]
> mount_points[0]: / (1eeb2a0)
> mount_points[1]: /sys (1eeb2c0)
> mount_points[2]: /proc (1eeb2e0)
> mount_points[3]: /dev (1eeb300)
> mount_points[4]: /sys/kernel/security (1eeb320)
> mount_points[5]: /dev/shm (1eeb350)
> mount_points[6]: /dev/pts (1eeb370)
> mount_points[7]: /run (1eeb390)
> mount_points[8]: /sys/fs/cgroup (1eeb3b0)
> mount_points[9]: /sys/fs/cgroup/systemd (1eeb3e0)
> mount_points[10]: /sys/fs/pstore (1eeb420)
> mount_points[11]: /sys/fs/cgroup/cpuset (1eeb450)
> mount_points[12]: /sys/fs/cgroup/cpu,cpuacct (1eeb490)
> mount_points[13]: /sys/fs/cgroup/memory (1eeb4d0)
> mount_points[14]: /sys/fs/cgroup/devices (1eeb510)
> mount_points[15]: /sys/fs/cgroup/freezer (1eeb550)
> mount_points[16]: /sys/fs/cgroup/blkio (1eeb590)
> mount_points[17]: /sys/fs/cgroup/perf_event (1eeb5c0)
> mount_points[18]: / (1eeb600)
> mount_points[19]: /proc/sys/fs/binfmt_misc (1eeb620)
> mount_points[20]: /sys/kernel/debug (1eeb660)
> mount_points[21]: /dev/mqueue (1eeb690)
> mount_points[22]: /.snapshots (1eeb6b0)
> mount_points[23]: /var/spool (1eeb6d0)
> mount_points[24]: /var/opt (1eeb6f0)
> mount_points[25]: /var/log (1eeb710)
> mount_points[26]: /var/tmp (1eeb730)
> mount_points[27]: /var/lib/libvirt/images (1eeb750)
> mount_points[28]: /var/lib/mailman (1eeb790)
> mount_points[29]: /var/crash (1eeb7c0)
> mount_points[30]: /var/lib/pgsql (1eeb7e0)
> mount_points[31]: /var/lib/named (1eeb810)
> mount_points[32]: /var/lib/mariadb (1eeb840)
> mount_points[33]: /tmp (1eeb870)
> mount_points[34]: /usr/local (1eeb890)
> mount_points[35]: /srv (1eeb8b0)
> mount_points[36]: /boot/grub2/x86_64-efi (1eeb8d0)
> mount_points[37]: /opt (1eeb910)
> mount_points[38]: /boot/grub2/i386-pc (1eeb930)
> mount_points[39]: /home (1eeb960)
> mount_points[40]: /var/lib/xenstored (1eeb980)
> mount_points[41]: /run/user/0/gvfs (1eeb9b0)
> mount_points[42]: /run/media/root/SLE-12-SP1-Server-DVD-x86_643179 (1eeb9e0)
> searchdirs[13]: /usr/lib/debug/lib/modules/3.12.49-6-xen/
> searchdirs[0]: /usr/src/linux/
> searchdirs[1]: /boot/
> searchdirs[2]: /boot/efi/redhat
> searchdirs[3]: /boot/efi/EFI/redhat
> searchdirs[4]: /
> searchdirs[5]: /usr/src/packages/
> searchdirs[6]: /usr/src/linux-3.12.49-6/
> searchdirs[7]: /usr/src/linux-3.12.49-6-obj/
> searchdirs[8]: /usr/src/linux-obj/
> searchdirs[9]: /usr/src/debug/
> searchdirs[10]: /lib/modules/3.12.49-6-xen/build/
> searchdirs[11]: /usr/src/redhat/BUILD/kernel-3.12.49/linux/
> searchdirs[12]: /usr/src/redhat/BUILD/kernel-3.12.49/linux-3.12.49/
> find_booted_kernel: check: /usr/src/linux/Makefile
> find_booted_kernel: check: /usr/src/linux/Kbuild
> find_booted_kernel: check: /usr/src/linux/Kconfig
> find_booted_kernel: check: /usr/src/linux/MAINTAINERS
> find_booted_kernel: check: /usr/src/linux/README.SUSE
> find_booted_kernel: check: /usr/src/linux/COPYING
> find_booted_kernel: check: /usr/src/linux/CREDITS
> find_booted_kernel: check: /usr/src/linux/README
> find_booted_kernel: check: /usr/src/linux/REPORTING-BUGS
> find_booted_kernel: check: /boot/boot.readme
> crash: /boot/symtypes-3.12.49-6-xen.gz: original filename unknown
> Use "-f /boot/symtypes-3.12.49-6-xen.gz" on command line to
> prevent this message.
>
> find_booted_kernel: check: /boot/symtypes-3.12.49-6-xen.gz
> crash: /boot/symtypes-3.12.49-6-default.gz: original filename unknown
> Use "-f /boot/symtypes-3.12.49-6-default.gz" on command line to
> prevent this message.
>
> find_booted_kernel: check: /boot/symtypes-3.12.49-6-default.gz
> crash: /boot/xen-4.5.1_10-1.gz: original filename unknown
> Use "-f /boot/xen-4.5.1_10-1.gz" on command line to prevent this
> message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-4.5.1_10-1.gz_Meuxmq: X86
>
> find_booted_kernel: check: /boot/xen-4.5.1_10-1.gz
> crash: /boot/xen-4.5.gz: original filename unknown
> Use "-f /boot/xen-4.5.gz" on command line to prevent this message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-4.5.gz_rsb8Dt: X86
>
> find_booted_kernel: check: /boot/xen-4.5.gz
> crash: /boot/xen-4.gz: original filename unknown
> Use "-f /boot/xen-4.gz" on command line to prevent this message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-4.gz_G4wt4w: X86
>
> find_booted_kernel: check: /boot/xen-4.gz
> crash: /boot/xen-dbg-4.5.1_10-1.gz: original filename unknown
> Use "-f /boot/xen-dbg-4.5.1_10-1.gz" on command line to prevent
> this message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-dbg-4.5.1_10-1.gz_Kh7vDA: X86
>
> find_booted_kernel: check: /boot/xen-dbg-4.5.1_10-1.gz
> crash: /boot/xen-dbg-4.5.gz: original filename unknown
> Use "-f /boot/xen-dbg-4.5.gz" on command line to prevent this
message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-dbg-4.5.gz_Yc9ZkE: X86
>
> find_booted_kernel: check: /boot/xen-dbg-4.5.gz
> crash: /boot/xen-dbg-4.gz: original filename unknown
> Use "-f /boot/xen-dbg-4.gz" on command line to prevent this
message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-dbg-4.gz_0JpLaI: X86
>
> find_booted_kernel: check: /boot/xen-dbg-4.gz
> crash: /boot/xen-dbg.gz: original filename unknown
> Use "-f /boot/xen-dbg.gz" on command line to prevent this message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen-dbg.gz_XCKM8L: X86
>
> find_booted_kernel: check: /boot/xen-dbg.gz
> find_booted_kernel: check: /boot/xen-syms
> find_booted_kernel: check: /boot/xen-syms-4.5.1_10-1
> find_booted_kernel: check: /boot/xen-syms-dbg
> find_booted_kernel: check: /boot/xen-syms-dbg-4.5.1_10-1
> crash: /boot/xen.gz: original filename unknown
> Use "-f /boot/xen.gz" on command line to prevent this message.
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> /var/tmp/xen.gz_3rstYS: X86
>
> find_booted_kernel: check: /boot/xen.gz
> find_booted_kernel: check: /boot/System.map-3.12.49-6-xen
> find_booted_kernel: check: /boot/config-3.12.49-6-xen
> crash: /boot/symvers-3.12.49-6-xen.gz: original filename unknown
> Use "-f /boot/symvers-3.12.49-6-xen.gz" on command line to
> prevent this message.
>
> find_booted_kernel: check: /boot/symvers-3.12.49-6-xen.gz
> find_booted_kernel: check: /boot/sysctl.conf-3.12.49-6-xen
> find_booted_kernel: check: /boot/vmlinux-3.12.49-6-xen.gz
> find_booted_kernel: found: /boot/vmlinux-3.12.49-6-xen.gz
> get_live_memory_source: /dev/mem
> /proc/version:
> Linux version 3.12.49-6-xen (geeko@buildhost) (gcc version 4.8.5 (SUSE
> Linux) ) #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
> /var/tmp/vmlinux-3.12.49-6-xen.gz_ecPt06:
> Linux version 3.12.49-6-xen (geeko@buildhost) (gcc version 4.8.5 (SUSE
> Linux) ) #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
> readmem: read_dev_mem() -> /dev/mem
> GETBUF(32 -> 0)
> NOTE: gnu_debuglink file: vmlinux-3.12.49-6-xen.debug
> crc32: 82102e72
> GETBUF(31 -> 1)
> /boot//vmlinux-3.12.49-6-xen.debug: not readable/found
> /boot//.debug/vmlinux-3.12.49-6-xen.debug: not readable/found
> /usr/lib/debug/boot/vmlinux-3.12.49-6-xen.debug: CRC matches
> FREEBUF(1)
> FREEBUF(0)
> gdb /usr/lib/debug/boot/vmlinux-3.12.49-6-xen.debug
> 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"...
> GETBUF(248 -> 0)
> GETBUF(1500 -> 1)
>
> FREEBUF(1)
> FREEBUF(0)
> <readmem: ffffffff804d8ae0, KVADDR, "kernel_config_data", 32768, (ROE),
> 2f22000>
> <read_dev_mem: addr: ffffffff804d8ae0 paddr: 4d8ae0 cnt: 1312>
> <read_dev_mem: addr: ffffffff804d9000 paddr: 4d9000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804da000 paddr: 4da000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804db000 paddr: 4db000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804dc000 paddr: 4dc000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804dd000 paddr: 4dd000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804de000 paddr: 4de000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804df000 paddr: 4df000 cnt: 4096>
> <read_dev_mem: addr: ffffffff804e0000 paddr: 4e0000 cnt: 2784>
> WARNING: could not find MAGIC_START!
> GETBUF(248 -> 0)
> FREEBUF(0)
> GETBUF(64 -> 0)
> <readmem: ffffffff804ce490, KVADDR, "cpu_possible_mask", 8, (FOE),
> 7fffb4ff6918>
> <read_dev_mem: addr: ffffffff804ce490 paddr: 4ce490 cnt: 8>
> <readmem: ffffffff804ce480, KVADDR, "cpu_present_mask", 8, (FOE),
> 7fffb4ff6918>
> <read_dev_mem: addr: ffffffff804ce480 paddr: 4ce480 cnt: 8>
> <readmem: ffffffff804ce488, KVADDR, "cpu_online_mask", 8, (FOE),
> 7fffb4ff6918>
> <read_dev_mem: addr: ffffffff804ce488 paddr: 4ce488 cnt: 8>
> <readmem: ffffffff804ce478, KVADDR, "cpu_active_mask", 8, (FOE),
> 7fffb4ff6918>
> <read_dev_mem: addr: ffffffff804ce478 paddr: 4ce478 cnt: 8>
> FREEBUF(0)
> <readmem: ffffffff809b7548, KVADDR, "phys_to_machine_mapping", 8,
(FOE),
> d2a2b8>
> <read_dev_mem: addr: ffffffff809b7548 paddr: 9b7548 cnt: 8>
> <readmem: ffffffff80a56588, KVADDR, "max_pfn", 8, (FOE), d2a2c0>
> <read_dev_mem: addr: ffffffff80a56588 paddr: a56588 cnt: 8>
> GETBUF(248 -> 0)
> FREEBUF(0)
> GETBUF(248 -> 0)
> FREEBUF(0)
> <readmem: ffffffff80a08e38, KVADDR, "timekeeper xtime_sec", 8, (ROE),
> 7fffb4ff6938>
> <read_dev_mem: addr: ffffffff80a08e38 paddr: a08e38 cnt: 8>
> <readmem: ffffffff808647a4, KVADDR, "init_uts_ns", 390, (ROE),
d1a0dc>
> <read_dev_mem: addr: ffffffff808647a4 paddr: 8647a4 cnt: 390>
> base kernel version: 0.0.0
> <readmem: ffffffff804c80c0, KVADDR, "accessible check", 8, (ROE|Q),
> 7fffb4ff3c98>
> <read_dev_mem: addr: ffffffff804c80c0 paddr: 4c80c0 cnt: 8>
> <readmem: ffffffff804c80c0, KVADDR, "read_string characters", 1499,
> (ROE|Q), 7fffb4ff3ff0>
> <read_dev_mem: addr: ffffffff804c80c0 paddr: 4c80c0 cnt: 1499>
> WARNING: cannot read linux_banner string
> /proc/version:
> Linux version 3.12.49-6-xen (geeko@buildhost) (gcc version 4.8.5 (SUSE
> Linux) ) #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
> linux_banner:
>
> crash: /var/tmp/vmlinux-3.12.49-6-xen.gz_ecPt06 and /dev/mem do not match!
>
> Usage:
>
> crash [OPTION]... NAMELIST MEMORY-IMAGE[@ADDRESS] (dumpfile form)
> crash [OPTION]... [NAMELIST] (live system form)
>
> Enter "crash -h" for details.
>
> Thanks!
> Best Regards
> Nan Xiao
>
>
> On Tue, Nov 17, 2015 at 12:56 PM, Dave Anderson <anderson(a)prospeed.net>
> wrote:
> > Can you show the full output of "crash -d8"?
> >
> >
> >
> > Sent from my Verizon Wireless 4G LTE smartphone
> >
> >
> > -------- Original message --------
> > From: Nan Xiao <xiaonan830818(a)gmail.com>
> > Date: 11/16/2015 8:55 PM (GMT-05:00)
> > To: "Discussion list for crash utility usage, maintenance and
development"
> > <crash-utility(a)redhat.com>
> > Subject: Re: [Crash-utility] The problems when running SuSE 12 on
> > VirtualBox
> >
> > Hi Dietmar & Dave,
> >
> > Thanks very much for your time and answer! But for question 3, there
> > is still no answer.
> >
> > I just execute "crash" with no parameters in the command line, and
want to
> > debug
> > Dom0:
> >
> > # crash
> > ......
> > WARNING: could not find MAGIC_START!
> > WARNING: cannot read linux_banner string
> > crash: /var/tmp/vmlinux-3.12.49-6-xen.gz_JWv5bU and /dev/mem do not match!
> > ......
> >
> > So why does this operation fail?
> > Best Regards
> > Nan Xiao
> >
> >
> > On Mon, Nov 16, 2015 at 10:48 PM, Dave Anderson <anderson(a)redhat.com>
> > wrote:
> >>
> >>
> >> ----- Original Message -----
> >>> Am Montag 16 November 2015, 14:01:35 schrieb Nan Xiao:
> >>> > Hi Dave,
> >>> >
> >>> > >> (2) "machine type mismatch"
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-4.5.1_10-1.gz_E5lLat: X86
> >>> > >>
> >>> > >> But according to "uname -a":
> >>> > >>
> >>> > >> # uname -a
> >>> > >> Linux linux-6ev3 3.12.49-6-xen #1 SMP Mon Oct 26 16:05:37
UTC 2015
> >>> > >> (11560c3) x86_64 x86_64 x86_64 GNU/Linux
> >>> > >>
> >>> > >> The running SuSE is also a 64-bit OS, so whether can
remove these
> >>> > >> warnings?
> >>> >
> >>> > > The mismatch message says that
"/var/tmp/xen-4.5.1_10-1.gz_E5lLat" is
> >>> > > an X86
> >>> > > 32-bit binary. You cannot use a 32-bit xen binary with a
64-bit
> >>> > > crash utility
> >>> > > binary.
> >>> >
> >>> > > Run "gunzip xen-4.5.1_10-1.gz", and then run
"file" on the
> >>> > > uncompressed file.
> >>> > > If it's a 32-bit binary, and the dumpfile came from that
kernel, then
> >>> > > you need
> >>> > > to use a 32-bit crash utility binary. If the dumpfile came
from a
> >>> > > 64-bit kernel,
> >>> > > then you're using the wrong xen binary.
> >>> >
> >>> > According to this
> >>> >
> >>> >
post(http://lists.xen.org/archives/html/xen-users/2015-10/msg00141.html),
> >>> > although the xen file is 32-bit, it is the correct file for running
on
> >>> > 64-bit OS. So I am not sure it should be considered as a bug.
> >>>
> >>> No it's not a bug.
> >>> The file you mentioned is only used for booting the hypervisor. For
> >>> debugging
> >>> the hypervisor a statically linked hypervisor file has to be used.
> >>>
> >>> On SLES11 SP4 I have for booting the xen hypervisor:
> >>> # file xen-4.4.2_12-23.1
> >>> xen-4.4.2_12-23.1_x2: ELF 32-bit LSB executable, Intel 80386, version 1
> >>> (SYSV), statically linked, stripped
> >>>
> >>> For working with crash and the vmcore:
> >>> # file xen-syms-4.4.2_12-23.1
> >>> xen-syms-4.4.2_12-23.1_x2: ELF 64-bit LSB executable, x86-64, version 1
> >>> (SYSV), statically linked, not stripped
> >>
> >>
> >> Hi Dietmar,
> >>
> >> Thanks for clarifying that. I should have noticed he was trying to use
> >> the
> >> actual xen binary instead of the xen-syms file -- which is specified in
> >> the
> >> crash(8) man page.
> >>
> >> And I wasn't even aware that the actual xen binary is a 32-bit image --
> >> good
> >> to know...
> >>
> >> Thanks,
> >> Dave
> >>
> >>
> >>
> >>
> >>
> >>
> >>>
> >>> >
> >>> > >> (3)
> >>> > >>
> >>> > >> WARNING: could not find MAGIC_START!
> >>> > >> WARNING: cannot read linux_banner string
> >>> > >> crash: /var/tmp/vmlinux-3.12.49-6-xen.gz_FjRFMJ and
/dev/mem do not
> >>> > >> match!
> >>> > >>
> >>> > >> How can I fix this issue and run crash on SuSE?
> >>> >
> >>> > > For starters, make sure the kernel, the dumpfile, and the
crash
> >>> > > binary
> >>> > > are all
> >>> > > 32-bit or all 64-bit, whichever is appropriate.
> >>> >
> >>> > # which crash
> >>> > /usr/bin/crash
> >>> >
> >>> > # file /usr/bin/crash
> >>> > /usr/bin/crash: ELF 64-bit LSB executable, x86-64, version 1
(SYSV),
> >>> > dynamically linked (uses shared libs), for GNU/Linux 3.0.0,
> >>> > BuildID[sha1]=e6f9921f98c5b4daedd8dac798c139b77676b588, stripped
> >>> >
> >>> > Using "crash /boot/vmlinux-3.12.49-6-xen.gz /proc/kcore"
works OK:
> >>>
> >>> This is expected as this is similar to the xen behaviour.
> >>> For booting:
> >>> # file vmlinuz-3.0.101-63-xen
> >>> vmlinuz-3.0.101-63-xen: Linux/x86 Kernel, Setup Version 0x20b, bzImage,
> >>> Version 3.0.101, Version 3.0.101-63, RO-rootFS, swap_dev 0x3, Normal
VGA
> >>>
> >>> And for debugging:
> >>> # file vmlinux-3.0.101-63-xen
> >>> vmlinux-3.0.101-63-xen: ELF 64-bit LSB executable, x86-64, version 1
> >>> (SYSV),
> >>> statically linked, not stripped
> >>>
> >>> Dietmar.
> >>>
> >>> >
> >>> > # file /proc/kcore
> >>> > /proc/kcore: ELF 64-bit LSB core file x86-64, version 1 (SYSV),
> >>> > SVR4-style, from
'root=UUID=ed63d5d7-1d2f-45ea-a77b-5b3ae05c1c2e
> >>> > resume=/dev/sda1 splash=silent q'
> >>> >
> >>> > # crash /boot/vmlinux-3.12.49-6-xen.gz /proc/kcore
> >>> >
> >>> > crash 7.1.3
> >>> > Copyright (C) 2002-2014 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"...
> >>> >
> >>> > KERNEL: /boot/vmlinux-3.12.49-6-xen.gz
> >>> > DEBUGINFO: /usr/lib/debug/boot/vmlinux-3.12.49-6-xen.debug
> >>> > DUMPFILE: /proc/kcore
> >>> > CPUS: 1
> >>> > DATE: Mon Nov 16 00:59:02 2015
> >>> > UPTIME: 04:55:39
> >>> > LOAD AVERAGE: 0.08, 0.03, 0.05
> >>> > TASKS: 241
> >>> > NODENAME: linux-6ev3
> >>> > RELEASE: 3.12.49-6-xen
> >>> > VERSION: #1 SMP Mon Oct 26 16:05:37 UTC 2015 (11560c3)
> >>> > MACHINE: x86_64 (2596 Mhz)
> >>> > MEMORY: 855.2 MB
> >>> > PID: 7472
> >>> > COMMAND: "crash"
> >>> > TASK: ffff880019ab6540 [THREAD_INFO: ffff880002dcc000]
> >>> > CPU: 0
> >>> > STATE: TASK_RUNNING (ACTIVE)
> >>> >
> >>> > So I think all the files are 64-bits.
> >>> >
> >>> > Thanks!
> >>> > Best Regards
> >>> > Nan Xiao
> >>> >
> >>> >
> >>> > On Fri, Nov 13, 2015 at 10:54 PM, Dave Anderson
<anderson(a)redhat.com>
> >>> > wrote:
> >>> > >
> >>> > >
> >>> > > ----- Original Message -----
> >>> > >> Hi all,
> >>> > >>
> >>> > >> Firstly, I am not sure whether posting this issue on this
mailing
> >>> > >> list
> >>> > >> is appropriate, if not,
> >>> > >> please forgive me, thanks!
> >>> > >>
> >>> > >> I install SuSE Enterprise Linux 12 (Xen version) on
VirtualBox, and
> >>> > >> want
> >>> > >> to use crash.
> >>> > >> Executing "crash" command, and the output likes
this:
> >>> > >>
> >>> > >> # crash
> >>> > >>
> >>> > >> crash 7.1.3
> >>> > >> Copyright (C) 2002-2014 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.
> >>> > >>
> >>> > >> crash: /boot/symtypes-3.12.49-6-xen.gz: original filename
unknown
> >>> > >> Use "-f /boot/symtypes-3.12.49-6-xen.gz" on
command line to
> >>> > >> prevent
> >>> > >> this message.
> >>> > >>
> >>> > >> crash: /boot/symtypes-3.12.49-6-default.gz: original
filename
> >>> > >> unknown
> >>> > >> Use "-f /boot/symtypes-3.12.49-6-default.gz"
on command line to
> >>> > >> prevent this message.
> >>> > >>
> >>> > >> crash: /boot/xen-4.5.1_10-1.gz: original filename unknown
> >>> > >> Use "-f /boot/xen-4.5.1_10-1.gz" on command
line to prevent this
> >>> > >> message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-4.5.1_10-1.gz_E5lLat: X86
> >>> > >>
> >>> > >> crash: /boot/xen-4.5.gz: original filename unknown
> >>> > >> Use "-f /boot/xen-4.5.gz" on command line to
prevent this message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-4.5.gz_0BL7f2: X86
> >>> > >>
> >>> > >> crash: /boot/xen-4.gz: original filename unknown
> >>> > >> Use "-f /boot/xen-4.gz" on command line to
prevent this message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-4.gz_PW97tB: X86
> >>> > >>
> >>> > >> crash: /boot/xen-dbg-4.5.1_10-1.gz: original filename
unknown
> >>> > >> Use "-f /boot/xen-dbg-4.5.1_10-1.gz" on
command line to prevent
> >>> > >> this
> >>> > >> message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-dbg-4.5.1_10-1.gz_zcILOa: X86
> >>> > >>
> >>> > >> crash: /boot/xen-dbg-4.5.gz: original filename unknown
> >>> > >> Use "-f /boot/xen-dbg-4.5.gz" on command line
to prevent this
> >>> > >> message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-dbg-4.5.gz_AEpJfK: X86
> >>> > >>
> >>> > >> crash: /boot/xen-dbg-4.gz: original filename unknown
> >>> > >> Use "-f /boot/xen-dbg-4.gz" on command line to
prevent this
> >>> > >> message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-dbg-4.gz_np36Nj: X86
> >>> > >>
> >>> > >> crash: /boot/xen-dbg.gz: original filename unknown
> >>> > >> Use "-f /boot/xen-dbg.gz" on command line to
prevent this message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-dbg.gz_1tAiuT: X86
> >>> > >>
> >>> > >> crash: /boot/xen.gz: original filename unknown
> >>> > >> Use "-f /boot/xen.gz" on command line to
prevent this message.
> >>> > >>
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen.gz_htZLuv: X86
> >>> > >>
> >>> > >> crash: /boot/symvers-3.12.49-6-xen.gz: original filename
unknown
> >>> > >> Use "-f /boot/symvers-3.12.49-6-xen.gz" on
command line to prevent
> >>> > >> this message.
> >>> > >>
> >>> > >> 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: could not find MAGIC_START!
> >>> > >> WARNING: cannot read linux_banner string
> >>> > >> crash: /var/tmp/vmlinux-3.12.49-6-xen.gz_FjRFMJ and
/dev/mem do not
> >>> > >> match!
> >>> > >>
> >>> > >> Usage:
> >>> > >>
> >>> > >> crash [OPTION]... NAMELIST MEMORY-IMAGE[@ADDRESS]
(dumpfile
> >>> > >> form)
> >>> > >> crash [OPTION]... [NAMELIST]
(live system
> >>> > >> form)
> >>> > >>
> >>> > >> Enter "crash -h" for details.
> >>> > >>
> >>> > >> My question are as follows:
> >>> > >>
> >>> > >> (1) There are so may warnings like this:
> >>> > >>
> >>> > >> crash: xxxxxx: original filename unknown
> >>> > >> Use "-f xxxxxx" on command line to prevent
this message.
> >>> > >>
> >>> > >> Do I need to add somay "-f xxxxxx" options on
command line? Is there
> >>> > >> any better method?
> >>> > >
> >>> > > The message above simply mean that the original filename of
the
> >>> > > compressed
> >>> > > file was not stored in the file's header. That means that
whoever
> >>> > > created
> >>> > > the compressed file used "gzip -n" or
"--no-name":
> >>> > >
> >>> > > $ man gzip
> >>> > > ... [ cut ] ...
> >>> > >
> >>> > > -n --no-name
> >>> > > When compressing, do not save the original file
name and
> >>> > > time
> >>> > > stamp by default. (The original name is always saved
if the
> >>> > > name
> >>> > > had to be truncated.) When decompressing, do not
restore
> >>> > > the
> >>> > > original file name if present (remove only the gzip
suffix
> >>> > > from
> >>> > > the compressed file name) and do not restore the
original
> >>> > > time
> >>> > > stamp
> >>> > > if present (copy it from the compressed file). This
option
> >>> > > is
> >>> > > the
> >>> > > default when decompressing.
> >>> > > ...
> >>> > >
> >>> > >> (2) "machine type mismatch"
> >>> > >> WARNING: machine type mismatch:
> >>> > >> crash utility: X86_64
> >>> > >> /var/tmp/xen-4.5.1_10-1.gz_E5lLat: X86
> >>> > >>
> >>> > >> But according to "uname -a":
> >>> > >>
> >>> > >> # uname -a
> >>> > >> Linux linux-6ev3 3.12.49-6-xen #1 SMP Mon Oct 26 16:05:37
UTC 2015
> >>> > >> (11560c3) x86_64 x86_64 x86_64 GNU/Linux
> >>> > >>
> >>> > >> The running SuSE is also a 64-bit OS, so whether can
remove these
> >>> > >> warnings?
> >>> > >
> >>> > > The mismatch message says that
"/var/tmp/xen-4.5.1_10-1.gz_E5lLat" is
> >>> > > an
> >>> > > X86
> >>> > > 32-bit binary. You cannot use a 32-bit xen binary with a
64-bit
> >>> > > crash
> >>> > > utility
> >>> > > binary.
> >>> > >
> >>> > > Run "gunzip xen-4.5.1_10-1.gz", and then run
"file" on the
> >>> > > uncompressed
> >>> > > file.
> >>> > > If it's a 32-bit binary, and the dumpfile came from that
kernel, then
> >>> > > you
> >>> > > need
> >>> > > to use a 32-bit crash utility binary. If the dumpfile came
from a
> >>> > > 64-bit
> >>> > > kernel,
> >>> > > then you're using the wrong xen binary.
> >>> > >
> >>> > >> (3)
> >>> > >>
> >>> > >> WARNING: could not find MAGIC_START!
> >>> > >> WARNING: cannot read linux_banner string
> >>> > >> crash: /var/tmp/vmlinux-3.12.49-6-xen.gz_FjRFMJ and
/dev/mem do not
> >>> > >> match!
> >>> > >>
> >>> > >> How can I fix this issue and run crash on SuSE?
> >>> > >
> >>> > > For starters, make sure the kernel, the dumpfile, and the
crash
> >>> > > binary are all
> >>> > > 32-bit or all 64-bit, whichever is appropriate.
> >>> > >
> >>> > > Dave
> >>> > >
> >>> > >>
> >>> > >> Thanks very much in advance!
> >>> > >> Best Regards
> >>> > >> Nan Xiao
> >>> > >>
> >>> > >> --
> >>> > >> Crash-utility mailing list
> >>> > >> Crash-utility(a)redhat.com
> >>> > >> https://www.redhat.com/mailman/listinfo/crash-utility
> >>> > >>
> >>> > >
> >>> > > --
> >>> > > Crash-utility mailing list
> >>> > > Crash-utility(a)redhat.com
> >>> > > https://www.redhat.com/mailman/listinfo/crash-utility
> >>> >
> >>> > --
> >>> > Crash-utility mailing list
> >>> > Crash-utility(a)redhat.com
> >>> > https://www.redhat.com/mailman/listinfo/crash-utility
> >>> >
> >>>
> >>> --
> >>> Company details: http://ts.fujitsu.com/imprint.html
> >>>
> >>> --
> >>> Crash-utility mailing list
> >>> Crash-utility(a)redhat.com
> >>> https://www.redhat.com/mailman/listinfo/crash-utility
> >>>
> >>
> >> --
> >> Crash-utility mailing list
> >> Crash-utility(a)redhat.com
> >> https://www.redhat.com/mailman/listinfo/crash-utility
> >
> > --
> > Crash-utility mailing list
> > Crash-utility(a)redhat.com
> > https://www.redhat.com/mailman/listinfo/crash-utility
> >
> >
> > --
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> > Crash-utility(a)redhat.com
> > https://www.redhat.com/mailman/listinfo/crash-utility
>
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