3 # SPDX-License-Identifier: BSD-3-Clause
5 # Copyright (c) 2008 Yahoo!, Inc.
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions
11 # 1. Redistributions of source code must retain the above copyright
12 # notice, this list of conditions and the following disclaimer.
13 # 2. Redistributions in binary form must reproduce the above copyright
14 # notice, this list of conditions and the following disclaimer in the
15 # documentation and/or other materials provided with the distribution.
16 # 3. Neither the name of the author nor the names of any co-contributors
17 # may be used to endorse or promote products derived from this software
18 # without specific prior written permission.
20 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 echo "usage: crashinfo [-b] [-d crashdir] [-n dumpnr]" \
41 # Find a gdb binary to use and save the value in GDB.
46 for binary in /usr/local/bin/gdb /usr/libexec/gdb /usr/bin/gdb; do
47 if [ -x ${binary} ]; then
54 # Run a single gdb command against a kernel file in batch mode.
55 # The kernel file is specified as the first argument and the command
56 # is given in the remaining arguments.
63 if [ ${GDB} = /usr/local/bin/gdb ]; then
64 ${GDB} -batch -ex "$@" $k
66 echo -e "$@" | ${GDB} -x /dev/stdin -batch $k
81 if ($0 ~ "^ [A-Za-z ]+: ") {
88 # Look for a matching kernel version, handling possible truncation
89 # of the version string recovered from the dump.
90 for k in `sysctl -n kern.bootfile` $(ls -t /boot/*/kernel); do
91 kvers=$(gdb_command $k 'printf " Version String: %s", version' | \
92 awk "{line=line\$0\"\n\"} END{print substr(line,1,${#ivers})}" \
94 if [ "$ivers" = "$kvers" ]; then
106 while getopts "bd:n:k:" opt; do
126 shift $((OPTIND - 1))
128 if [ $# -eq 1 ]; then
129 if [ -n "$DUMPNR" ]; then
130 echo "-n and an explicit vmcore are mutually exclusive"
134 # Figure out the crash directory and number from the vmcore name.
135 CRASHDIR=`dirname $1`
136 DUMPNR=$(expr $(basename $1) : 'vmcore\.\([0-9]*\)$')
137 if [ -z "$DUMPNR" ]; then
138 echo "Unable to determine dump number from vmcore file $1."
141 elif [ $# -gt 1 ]; then
144 # If we don't have an explicit dump number, operate on the most
146 if [ -z "$DUMPNR" ]; then
147 if ! [ -r $CRASHDIR/bounds ]; then
148 echo "No crash dumps in $CRASHDIR."
151 next=`cat $CRASHDIR/bounds`
152 if [ -z "$next" ] || [ "$next" -eq 0 ]; then
153 echo "No crash dumps in $CRASHDIR."
156 DUMPNR=$(($next - 1))
160 VMCORE=$CRASHDIR/vmcore.$DUMPNR
161 INFO=$CRASHDIR/info.$DUMPNR
162 FILE=$CRASHDIR/core.txt.$DUMPNR
166 echo "Writing crash summary to $FILE."
171 if [ -z "$GDB" ]; then
172 echo "Unable to find a kernel debugger."
176 if [ ! -e $VMCORE ]; then
177 echo "$VMCORE not found"
181 if [ ! -e $INFO ]; then
182 echo "$INFO not found"
186 # If the user didn't specify a kernel, then try to find one.
187 if [ -z "$KERNEL" ]; then
189 if [ -z "$KERNEL" ]; then
190 echo "Unable to find matching kernel for $VMCORE"
193 elif [ ! -e $KERNEL ]; then
194 echo "$KERNEL not found"
201 ostype=$(gdb_command $KERNEL 'printf "%s", ostype')
202 osrelease=$(gdb_command $KERNEL 'printf "%s", osrelease')
203 version=$(gdb_command $KERNEL 'printf "%s", version' | tr '\t\n' ' ')
204 machine=$(gdb_command $KERNEL 'printf "%s", machine')
207 echo "Writing crash summary to $FILE."
211 echo "$HOSTNAME dumped core - see $VMCORE"
215 echo "$ostype $HOSTNAME $osrelease $version $machine"
217 sed -ne '/^ Panic String: /{s//panic: /;p;}' $INFO
220 # XXX: /bin/sh on 7.0+ is broken so we can't simply pipe the commands to
221 # kgdb via stdin and have to use a temporary file instead.
222 file=`mktemp /tmp/crashinfo.XXXXXX`
223 if [ $? -eq 0 ]; then
226 ${GDB%gdb}kgdb $KERNEL $VMCORE < $file
232 echo "------------------------------------------------------------------------"
235 ps -M $VMCORE -N $KERNEL -axlww
238 echo "------------------------------------------------------------------------"
241 vmstat -M $VMCORE -N $KERNEL -s
244 echo "------------------------------------------------------------------------"
247 vmstat -M $VMCORE -N $KERNEL -m
250 echo "------------------------------------------------------------------------"
253 vmstat -M $VMCORE -N $KERNEL -z
256 echo "------------------------------------------------------------------------"
259 vmstat -M $VMCORE -N $KERNEL -i
262 echo "------------------------------------------------------------------------"
265 pstat -M $VMCORE -N $KERNEL -T
268 echo "------------------------------------------------------------------------"
271 pstat -M $VMCORE -N $KERNEL -s
274 echo "------------------------------------------------------------------------"
277 iostat -M $VMCORE -N $KERNEL
280 echo "------------------------------------------------------------------------"
283 ipcs -C $VMCORE -N $KERNEL -a
286 echo "------------------------------------------------------------------------"
289 ipcs -C $VMCORE -N $KERNEL -T
292 # XXX: This doesn't actually work in 5.x+
294 echo "------------------------------------------------------------------------"
297 w -M $VMCORE -N $KERNEL -dn
301 echo "------------------------------------------------------------------------"
304 nfsstat -M $VMCORE -N $KERNEL
307 echo "------------------------------------------------------------------------"
310 netstat -M $VMCORE -N $KERNEL -s
313 echo "------------------------------------------------------------------------"
316 netstat -M $VMCORE -N $KERNEL -m
319 echo "------------------------------------------------------------------------"
322 netstat -M $VMCORE -N $KERNEL -anA
325 echo "------------------------------------------------------------------------"
328 netstat -M $VMCORE -N $KERNEL -aL
331 echo "------------------------------------------------------------------------"
334 fstat -M $VMCORE -N $KERNEL
337 echo "------------------------------------------------------------------------"
340 dmesg -a -M $VMCORE -N $KERNEL
343 echo "------------------------------------------------------------------------"
349 echo "------------------------------------------------------------------------"
350 echo "ddb capture buffer"
353 ddb capture -M $VMCORE -N $KERNEL print