freebsd-dev/usr.sbin/crashinfo/crashinfo.sh
Ed Maste 7ad50a360b Improve multi-line kernel ident parsing
Instead of blindly grabbing the line with 'Version string' and the
following one from the core info file, take all lines after 'Version
string' until the one one that matches the field format in the core info
file.  This provides compatibility with VendorBSD modifications that have
a different kernel ident format.

Reviewed by:	jhb
2012-03-07 18:46:21 +00:00

317 lines
7.4 KiB
Bash
Executable File

#!/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
}
nextline==1 {
if ($0 ~ "^ [A-Za-z ]+: ") {
nextline=0
} else {
print
}
}' $INFO)
# Look for a matching kernel version.
for k in `sysctl -n kern.bootfile` $(ls -t /boot/*/kernel); do
kvers=$(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 $FILE."
umask 077
# Simulate uname
ostype=$(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
echo
echo "------------------------------------------------------------------------"
echo "ddb capture buffer"
echo
ddb capture -M $VMCORE -N $KERNEL print