NAME
crashinfo —
analyze a core dump of the operating
system
SYNOPSIS
crashinfo |
[-d crashdir]
[-n dumpnr]
[-k kernel]
[core] |
DESCRIPTION
Thecrashinfo 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
crashinfois run during boot. -dcrashdir- Specify an alternate core dump directory. The default crash dump directory is /var/crash.
-ndumpnr- Use the core dump saved in vmcore.dumpnr instead of the latest core in the core dump directory.
-kkernel- Specify an explicit kernel file.
SEE ALSO
HISTORY
The crashinfo utility appeared in
FreeBSD 6.4.