#!/bin/sh
#
# Copyright (c) 2008 Yahoo!, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the author nor the names of any co-contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
usage()
{
echo "usage: crashinfo [-d crashdir] [-n dumpnr] [-k kernel] [core]"
exit 1
}
find_kernel()
{
local ivers k kvers
ivers=$(awk '
/Version String/ {
print
nextline=1
next
}
// {
if (nextline) {
print
nextline=0
}
}' $INFO)
# Look for a matching kernel version.
for k in /boot/kernel/kernel $(ls -t /boot/*/kernel); do
kvers=$(echo 'printf " Version String: %s", version' | \
gdb -x /dev/stdin -batch $k 2>/dev/null)
if [ "$ivers" = "$kvers" ]; then
KERNEL=$k
break
fi
done
}
CRASHDIR=/var/crash
DUMPNR=
KERNEL=
while getopts "d:n:k:" opt; do
case "$opt" in
d)
CRASHDIR=$OPTARG
;;
n)
DUMPNR=$OPTARG
;;
k)
KERNEL=$OPTARG
;;
\?)
usage
;;
esac
done
shift $((OPTIND - 1))
if [ $# -eq 1 ]; then
if [ -n "$DUMPNR" ]; then
echo "-n and an explicit vmcore are mutually exclusive"
usage
fi
# Figure out the crash directory and number from the vmcore name.
CRASHDIR=`dirname $1`
DUMPNR=$(expr $(basename $1) : 'vmcore\.\([0-9]*\)$')
if [ -z "$DUMPNR" ]; then
echo "Unable to determine dump number from vmcore file $1."
exit 1
fi
elif [ $# -gt 1 ]; then
usage
else
# If we don't have an explicit dump number, operate on the most
# recent dump.
if [ -z "$DUMPNR" ]; then
if ! [ -r $CRASHDIR/bounds ]; then
echo "No crash dumps in $CRASHDIR."
exit 1
fi
next=`cat $CRASHDIR/bounds`
if [ -z "$next" ] || [ "$next" -eq 0 ]; then
echo "No crash dumps in $CRASHDIR."
exit 1
fi
DUMPNR=$(($next - 1))
fi
fi
VMCORE=$CRASHDIR/vmcore.$DUMPNR
INFO=$CRASHDIR/info.$DUMPNR
FILE=$CRASHDIR/core.txt.$DUMPNR
HOSTNAME=`hostname`
if [ ! -e $VMCORE ]; then
echo "$VMCORE not found"
exit 1
fi
if [ ! -e $INFO ]; then
echo "$INFO not found"
exit 1
fi
# If the user didn't specify a kernel, then try to find one.
if [ -z "$KERNEL" ]; then
find_kernel
if [ -z "$KERNEL" ]; then
echo "Unable to find matching kernel for $VMCORE"
exit 1
fi
elif [ ! -e $KERNEL ]; then
echo "$KERNEL not found"
exit 1
fi
echo "Writing crash summary to $FILE."
# Simulate uname
ostype=$(echo -e printf '"%s", ostype' | gdb -x /dev/stdin -batch $KERNEL)
osrelease=$(echo -e printf '"%s", osrelease' | gdb -x /dev/stdin -batch $KERNEL)
version=$(echo -e printf '"%s", version' | gdb -x /dev/stdin -batch $KERNEL | \
tr '\t\n' ' ')
machine=$(echo -e printf '"%s", machine' | gdb -x /dev/stdin -batch $KERNEL)
exec > $FILE 2>&1
echo "$HOSTNAME dumped core - see $VMCORE"
echo
date
echo
echo "$ostype $HOSTNAME $osrelease $version $machine"
echo
sed -ne '/^ Panic String: /{s//panic: /;p;}' $INFO
echo
# XXX: /bin/sh on 7.0+ is broken so we can't simply pipe the commands to
# kgdb via stdin and have to use a temporary file instead.
file=`mktemp /tmp/crashinfo.XXXXXX`
if [ $? -eq 0 ]; then
echo "bt" >> $file
echo "quit" >> $file
kgdb $KERNEL $VMCORE < $file
rm -f $file
echo
fi
echo
echo "------------------------------------------------------------------------"
echo "ps -axl"
echo
ps -M $VMCORE -N $KERNEL -axl
echo
echo "------------------------------------------------------------------------"
echo "vmstat -s"
echo
vmstat -M $VMCORE -N $KERNEL -s
echo
echo "------------------------------------------------------------------------"
echo "vmstat -m"
echo
vmstat -M $VMCORE -N $KERNEL -m
echo
echo "------------------------------------------------------------------------"
echo "vmstat -z"
echo
vmstat -M $VMCORE -N $KERNEL -z
echo
echo "------------------------------------------------------------------------"
echo "vmstat -i"
echo
vmstat -M $VMCORE -N $KERNEL -i
echo
echo "------------------------------------------------------------------------"
echo "pstat -T"
echo
pstat -M $VMCORE -N $KERNEL -T
echo
echo "------------------------------------------------------------------------"
echo "pstat -s"
echo
pstat -M $VMCORE -N $KERNEL -s
echo
echo "------------------------------------------------------------------------"
echo "iostat"
echo
iostat -M $VMCORE -N $KERNEL
echo
echo "------------------------------------------------------------------------"
echo "ipcs -a"
echo
ipcs -C $VMCORE -N $KERNEL -a
echo
echo "------------------------------------------------------------------------"
echo "ipcs -T"
echo
ipcs -C $VMCORE -N $KERNEL -T
echo
# XXX: This doesn't actually work in 5.x+
if false; then
echo "------------------------------------------------------------------------"
echo "w -dn"
echo
w -M $VMCORE -N $KERNEL -dn
echo
fi
echo "------------------------------------------------------------------------"
echo "nfsstat"
echo
nfsstat -M $VMCORE -N $KERNEL
echo
echo "------------------------------------------------------------------------"
echo "netstat -s"
echo
netstat -M $VMCORE -N $KERNEL -s
echo
echo "------------------------------------------------------------------------"
echo "netstat -m"
echo
netstat -M $VMCORE -N $KERNEL -m
echo
echo "------------------------------------------------------------------------"
echo "netstat -id"
echo
netstat -M $VMCORE -N $KERNEL -id
echo
echo "------------------------------------------------------------------------"
echo "netstat -anr"
echo
netstat -M $VMCORE -N $KERNEL -anr
echo
echo "------------------------------------------------------------------------"
echo "netstat -anA"
echo
netstat -M $VMCORE -N $KERNEL -anA
echo
echo "------------------------------------------------------------------------"
echo "netstat -aL"
echo
netstat -M $VMCORE -N $KERNEL -aL
echo
echo "------------------------------------------------------------------------"
echo "fstat"
echo
fstat -M $VMCORE -N $KERNEL
echo
echo "------------------------------------------------------------------------"
echo "dmesg"
echo
dmesg -a -M $VMCORE -N $KERNEL
echo
echo "------------------------------------------------------------------------"
echo "kernel config"
echo
config -x $KERNEL
