1#!/bin/sh 2# 3# Copyright (c) 2008 Yahoo!, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 3. Neither the name of the author nor the names of any co-contributors 15# may be used to endorse or promote products derived from this software 16# without specific prior written permission. 17# 18# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28# SUCH DAMAGE. 29# 30# $FreeBSD$ 31 32usage() 33{ 34 echo "usage: crashinfo [-d crashdir] [-n dumpnr] [-k kernel] [core]" 35 exit 1 36} 37 38find_kernel() 39{ 40 local ivers k kvers 41 42 ivers=$(awk ' 43 /Version String/ { 44 print 45 nextline=1 46 next 47 } 48 // { 49 if (nextline) { 50 print 51 nextline=0 52 } 53 }' $INFO) 54 55 # Look for a matching kernel version. 56 for k in /boot/kernel/kernel $(ls -t /boot/*/kernel); do 57 kvers=$(echo 'printf " Version String: %s", version' | \ 58 gdb -x /dev/stdin -batch $k 2>/dev/null) 59 if [ "$ivers" = "$kvers" ]; then 60 KERNEL=$k 61 break 62 fi 63 done 64} 65 66CRASHDIR=/var/crash 67DUMPNR= 68KERNEL= 69 70while getopts "d:n:k:" opt; do 71 case "$opt" in 72 d) 73 CRASHDIR=$OPTARG 74 ;; 75 n) 76 DUMPNR=$OPTARG 77 ;; 78 k) 79 KERNEL=$OPTARG 80 ;; 81 \?) 82 usage 83 ;; 84 esac 85done 86 87shift $((OPTIND - 1)) 88 89if [ $# -eq 1 ]; then 90 if [ -n "$DUMPNR" ]; then 91 echo "-n and an explicit vmcore are mutually exclusive" 92 usage 93 fi 94 95 # Figure out the crash directory and number from the vmcore name. 96 CRASHDIR=`dirname $1` 97 DUMPNR=$(expr $(basename $1) : 'vmcore\.\([0-9]*\)$') 98 if [ -z "$DUMPNR" ]; then 99 echo "Unable to determine dump number from vmcore file $1." 100 exit 1 101 fi 102elif [ $# -gt 1 ]; then 103 usage 104else 105 # If we don't have an explicit dump number, operate on the most 106 # recent dump. 107 if [ -z "$DUMPNR" ]; then 108 if ! [ -r $CRASHDIR/bounds ]; then 109 echo "No crash dumps in $CRASHDIR." 110 exit 1 111 fi 112 next=`cat $CRASHDIR/bounds` 113 if [ -z "$next" ] || [ "$next" -eq 0 ]; then 114 echo "No crash dumps in $CRASHDIR." 115 exit 1 116 fi 117 DUMPNR=$(($next - 1)) 118 fi 119fi 120 121VMCORE=$CRASHDIR/vmcore.$DUMPNR 122INFO=$CRASHDIR/info.$DUMPNR 123FILE=$CRASHDIR/core.txt.$DUMPNR 124HOSTNAME=`hostname` 125 126if [ ! -e $VMCORE ]; then 127 echo "$VMCORE not found" 128 exit 1 129fi 130 131if [ ! -e $INFO ]; then 132 echo "$INFO not found" 133 exit 1 134fi 135 136# If the user didn't specify a kernel, then try to find one. 137if [ -z "$KERNEL" ]; then 138 find_kernel 139 if [ -z "$KERNEL" ]; then 140 echo "Unable to find matching kernel for $VMCORE" 141 exit 1 142 fi 143elif [ ! -e $KERNEL ]; then 144 echo "$KERNEL not found" 145 exit 1 146fi 147 148echo "Writing crash summary to $FILE." 149 150# Simulate uname 151ostype=$(echo -e printf '"%s", ostype' | gdb -x /dev/stdin -batch $KERNEL) 152osrelease=$(echo -e printf '"%s", osrelease' | gdb -x /dev/stdin -batch $KERNEL) 153version=$(echo -e printf '"%s", version' | gdb -x /dev/stdin -batch $KERNEL | \ 154 tr '\t\n' ' ') 155machine=$(echo -e printf '"%s", machine' | gdb -x /dev/stdin -batch $KERNEL) 156 157exec > $FILE 2>&1 158 159echo "$HOSTNAME dumped core - see $VMCORE" 160echo 161date 162echo 163echo "$ostype $HOSTNAME $osrelease $version $machine" 164echo 165sed -ne '/^ Panic String: /{s//panic: /;p;}' $INFO 166echo 167 168# XXX: /bin/sh on 7.0+ is broken so we can't simply pipe the commands to 169# kgdb via stdin and have to use a temporary file instead. 170file=`mktemp /tmp/crashinfo.XXXXXX` 171if [ $? -eq 0 ]; then 172 echo "bt" >> $file 173 echo "quit" >> $file 174 kgdb $KERNEL $VMCORE < $file 175 rm -f $file 176 echo 177fi 178echo 179 180echo "------------------------------------------------------------------------" 181echo "ps -axl" 182echo 183ps -M $VMCORE -N $KERNEL -axl 184echo 185 186echo "------------------------------------------------------------------------" 187echo "vmstat -s" 188echo 189vmstat -M $VMCORE -N $KERNEL -s 190echo 191 192echo "------------------------------------------------------------------------" 193echo "vmstat -m" 194echo 195vmstat -M $VMCORE -N $KERNEL -m 196echo 197 198echo "------------------------------------------------------------------------" 199echo "vmstat -z" 200echo 201vmstat -M $VMCORE -N $KERNEL -z 202echo 203 204echo "------------------------------------------------------------------------" 205echo "vmstat -i" 206echo 207vmstat -M $VMCORE -N $KERNEL -i 208echo 209 210echo "------------------------------------------------------------------------" 211echo "pstat -T" 212echo 213pstat -M $VMCORE -N $KERNEL -T 214echo 215 216echo "------------------------------------------------------------------------" 217echo "pstat -s" 218echo 219pstat -M $VMCORE -N $KERNEL -s 220echo 221 222echo "------------------------------------------------------------------------" 223echo "iostat" 224echo 225iostat -M $VMCORE -N $KERNEL 226echo 227 228echo "------------------------------------------------------------------------" 229echo "ipcs -a" 230echo 231ipcs -C $VMCORE -N $KERNEL -a 232echo 233 234echo "------------------------------------------------------------------------" 235echo "ipcs -T" 236echo 237ipcs -C $VMCORE -N $KERNEL -T 238echo 239 240# XXX: This doesn't actually work in 5.x+ 241if false; then 242echo "------------------------------------------------------------------------" 243echo "w -dn" 244echo 245w -M $VMCORE -N $KERNEL -dn 246echo 247fi 248 249echo "------------------------------------------------------------------------" 250echo "nfsstat" 251echo 252nfsstat -M $VMCORE -N $KERNEL 253echo 254 255echo "------------------------------------------------------------------------" 256echo "netstat -s" 257echo 258netstat -M $VMCORE -N $KERNEL -s 259echo 260 261echo "------------------------------------------------------------------------" 262echo "netstat -m" 263echo 264netstat -M $VMCORE -N $KERNEL -m 265echo 266 267echo "------------------------------------------------------------------------" 268echo "netstat -id" 269echo 270netstat -M $VMCORE -N $KERNEL -id 271echo 272 273echo "------------------------------------------------------------------------" 274echo "netstat -anr" 275echo 276netstat -M $VMCORE -N $KERNEL -anr 277echo 278 279echo "------------------------------------------------------------------------" 280echo "netstat -anA" 281echo 282netstat -M $VMCORE -N $KERNEL -anA 283echo 284 285echo "------------------------------------------------------------------------" 286echo "netstat -aL" 287echo 288netstat -M $VMCORE -N $KERNEL -aL 289echo 290 291echo "------------------------------------------------------------------------" 292echo "fstat" 293echo 294fstat -M $VMCORE -N $KERNEL 295echo 296 297echo "------------------------------------------------------------------------" 298echo "dmesg" 299echo 300dmesg -a -M $VMCORE -N $KERNEL 301echo 302 303echo "------------------------------------------------------------------------" 304echo "kernel config" 305echo 306config -x $KERNEL 307