使用-d number可以打印运行crash命令时,输出的调试信息。number越大,输出的信息越多。目前-d8可以打印所有的调试信息。举例如下:

# crash -d8

crash 7.0.2-6.el7
Copyright (C) 2002-2013  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 3.10.0-123.el7.x86_64.debug (mockbuild@x86-017.build.eng.bos.redhat.com) (gcc version 4.8.2 20
140120 (Red Hat 4.8.2-16) (GCC) ) #1 SMP Mon May 5 11:24:18 EDT 2014]
mount_points[0]: / (167c600)
mount_points[1]: /proc (167c620)
mount_points[2]: /sys (167c640)
mount_points[3]: /dev (167c660)
mount_points[4]: /sys/kernel/security (167c680)
mount_points[5]: /dev/shm (167c6b0)
mount_points[6]: /dev/pts (167c6d0)
mount_points[7]: /run (167c6f0)
mount_points[8]: /sys/fs/cgroup (167c710)
mount_points[9]: /sys/fs/cgroup/systemd (167c740)
mount_points[10]: /sys/fs/pstore (167c780)
mount_points[11]: /sys/fs/cgroup/cpuset (167c7b0)
mount_points[12]: /sys/fs/cgroup/cpu,cpuacct (167c7f0)
mount_points[13]: /sys/fs/cgroup/memory (167c830)
......