The
crashinfo
utility analyzes a core dump saved by
savecore(8).
It generates a text file containing the analysis in the same directory as
the core dump.
For a given core dump file named
vmcore.XX
the generated text file will be named
core.txt.XX.
By default,
crashinfo
analyzes the most recent core dump in the core dump directory.
A specific core dump may be specified via either the
core
or
dumpnr
arguments.
Once
crashinfo
has located a core dump,
it analyzes the core dump to determine the exact version of the kernel
that generated the core.
It then looks for a matching kernel file under each of the subdirectories in
/boot.
The location of the kernel file can also be explicitly provided via the
kernel
argument.
Once
crashinfo
has located a core dump and kernel,
it uses several utilities to analyze the core including
dmesg(8),
fstat(1),
iostat(8),
ipcs(1),
kgdb(1),
netstat(1),
nfsstat(1),
ps(1),
pstat(8),
and
vmstat(8).
The options are as follows:
|
| -b
|
| |
Run in batch mode.
Write most messages to the
core.txt.XX
file instead of the terminal.
This flag is used when
crashinfo
is run during boot.
|
| -d crashdir
|
| |
Specify an alternate core dump directory.
The default crash dump directory is
/var/crash.
|
| -n dumpnr
|
| |
Use the core dump saved in
vmcore.dumpnr
instead of the latest core in the core dump directory.
|
| -k kernel
|
| |
Specify an explicit kernel file.
|
|
