1d53f52d6SPaul E. McKenney#!/bin/bash 2d53f52d6SPaul E. McKenney# SPDX-License-Identifier: GPL-2.0+ 3d53f52d6SPaul E. McKenney# 4d53f52d6SPaul E. McKenney# Carry out a kvm-based run for the specified qemu-cmd file, which might 5d53f52d6SPaul E. McKenney# have been generated by --build-only kvm.sh run. 6d53f52d6SPaul E. McKenney# 7d53f52d6SPaul E. McKenney# Usage: kvm-test-1-run-qemu.sh qemu-cmd-dir 8d53f52d6SPaul E. McKenney# 9d53f52d6SPaul E. McKenney# qemu-cmd-dir provides the directory containing qemu-cmd file. 10d53f52d6SPaul E. McKenney# This is assumed to be of the form prefix/ds/scenario, where 11d53f52d6SPaul E. McKenney# "ds" is the top-level date-stamped directory and "scenario" 12d53f52d6SPaul E. McKenney# is the scenario name. Any required adjustments to this file 13d53f52d6SPaul E. McKenney# must have been made by the caller. The shell-command comments 14d53f52d6SPaul E. McKenney# at the end of the qemu-cmd file are not optional. 15d53f52d6SPaul E. McKenney# 16d53f52d6SPaul E. McKenney# Copyright (C) 2021 Facebook, Inc. 17d53f52d6SPaul E. McKenney# 18d53f52d6SPaul E. McKenney# Authors: Paul E. McKenney <paulmck@kernel.org> 19d53f52d6SPaul E. McKenney 20c211ae9cSPaul E. McKenneyT="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-qemu.sh.XXXXXX`" 21d53f52d6SPaul E. McKenneytrap 'rm -rf $T' 0 22d53f52d6SPaul E. McKenney 23d53f52d6SPaul E. McKenneyresdir="$1" 24d53f52d6SPaul E. McKenneyif ! test -d "$resdir" 25d53f52d6SPaul E. McKenneythen 26d53f52d6SPaul E. McKenney echo $0: Nonexistent directory: $resdir 27d53f52d6SPaul E. McKenney exit 1 28d53f52d6SPaul E. McKenneyfi 29d53f52d6SPaul E. McKenneyif ! test -f "$resdir/qemu-cmd" 30d53f52d6SPaul E. McKenneythen 31d53f52d6SPaul E. McKenney echo $0: Nonexistent qemu-cmd file: $resdir/qemu-cmd 32d53f52d6SPaul E. McKenney exit 1 33d53f52d6SPaul E. McKenneyfi 34d53f52d6SPaul E. McKenney 35cb1fa863SPaul E. McKenneyecho ' ---' `date`: Starting kernel, PID $$ 36cb1fa863SPaul E. McKenney 37d53f52d6SPaul E. McKenney# Obtain settings from the qemu-cmd file. 38d53f52d6SPaul E. McKenneygrep '^#' $resdir/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings 39d53f52d6SPaul E. McKenney. $T/qemu-cmd-settings 40d53f52d6SPaul E. McKenney 41bdf5ca12SPaul E. McKenney# Decorate qemu-cmd with affinity, redirection, backgrounding, and PID capture 42bdf5ca12SPaul E. McKenneytaskset_command= 43bdf5ca12SPaul E. McKenneyif test -n "$TORTURE_AFFINITY" 44bdf5ca12SPaul E. McKenneythen 45bdf5ca12SPaul E. McKenney taskset_command="taskset -c $TORTURE_AFFINITY " 46bdf5ca12SPaul E. McKenneyfi 47bdf5ca12SPaul E. McKenneysed -e 's/^[^#].*$/'"$taskset_command"'& 2>\&1 \&/' < $resdir/qemu-cmd > $T/qemu-cmd 48bdf5ca12SPaul E. McKenneyecho 'qemu_pid=$!' >> $T/qemu-cmd 499e528a84SPaul E. McKenneyecho 'echo $qemu_pid > $resdir/qemu-pid' >> $T/qemu-cmd 50bdf5ca12SPaul E. McKenneyecho 'taskset -c -p $qemu_pid > $resdir/qemu-affinity' >> $T/qemu-cmd 51d53f52d6SPaul E. McKenney 52d53f52d6SPaul E. McKenney# In case qemu refuses to run... 53d53f52d6SPaul E. McKenneyecho "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log 54d53f52d6SPaul E. McKenney 55d53f52d6SPaul E. McKenney# Attempt to run qemu 56d53f52d6SPaul E. McKenneykstarttime=`gawk 'BEGIN { print systime() }' < /dev/null` 579e528a84SPaul E. McKenney( . $T/qemu-cmd; wait `cat $resdir/qemu-pid`; echo $? > $resdir/qemu-retval ) & 58d53f52d6SPaul E. McKenneycommandcompleted=0 59d53f52d6SPaul E. McKenneyif test -z "$TORTURE_KCONFIG_GDB_ARG" 60d53f52d6SPaul E. McKenneythen 61d53f52d6SPaul E. McKenney sleep 10 # Give qemu's pid a chance to reach the file 629e528a84SPaul E. McKenney if test -s "$resdir/qemu-pid" 63d53f52d6SPaul E. McKenney then 649e528a84SPaul E. McKenney qemu_pid=`cat "$resdir/qemu-pid"` 655f33809eSPaul E. McKenney echo Monitoring qemu job at pid $qemu_pid `date` 66d53f52d6SPaul E. McKenney else 67d53f52d6SPaul E. McKenney qemu_pid="" 685f33809eSPaul E. McKenney echo Monitoring qemu job at yet-as-unknown pid `date` 69d53f52d6SPaul E. McKenney fi 70d53f52d6SPaul E. McKenneyfi 71d53f52d6SPaul E. McKenneyif test -n "$TORTURE_KCONFIG_GDB_ARG" 72d53f52d6SPaul E. McKenneythen 73d53f52d6SPaul E. McKenney base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'` 74d53f52d6SPaul E. McKenney if ! test -f $base_resdir/vmlinux 75d53f52d6SPaul E. McKenney then 7603edf700SPaul E. McKenney base_resdir="`cat re-run`/$resdir" 7703edf700SPaul E. McKenney if ! test -f $base_resdir/vmlinux 7803edf700SPaul E. McKenney then 79d53f52d6SPaul E. McKenney base_resdir=/path/to 80d53f52d6SPaul E. McKenney fi 8103edf700SPaul E. McKenney fi 82d53f52d6SPaul E. McKenney echo Waiting for you to attach a debug session, for example: > /dev/tty 83d53f52d6SPaul E. McKenney echo " gdb $base_resdir/vmlinux" > /dev/tty 84d53f52d6SPaul E. McKenney echo 'After symbols load and the "(gdb)" prompt appears:' > /dev/tty 85d53f52d6SPaul E. McKenney echo " target remote :1234" > /dev/tty 86d53f52d6SPaul E. McKenney echo " continue" > /dev/tty 87d53f52d6SPaul E. McKenney kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null` 88d53f52d6SPaul E. McKenneyfi 89d53f52d6SPaul E. McKenneywhile : 90d53f52d6SPaul E. McKenneydo 91b3bf9632SPaul E. McKenney if test -z "$qemu_pid" && test -s "$resdir/qemu-pid" 92d53f52d6SPaul E. McKenney then 939e528a84SPaul E. McKenney qemu_pid=`cat "$resdir/qemu-pid"` 94d53f52d6SPaul E. McKenney fi 95d53f52d6SPaul E. McKenney kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null` 96d53f52d6SPaul E. McKenney if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1 97d53f52d6SPaul E. McKenney then 98d53f52d6SPaul E. McKenney if test -n "$TORTURE_KCONFIG_GDB_ARG" 99d53f52d6SPaul E. McKenney then 100d53f52d6SPaul E. McKenney : 101d53f52d6SPaul E. McKenney elif test $kruntime -ge $seconds || test -f "$resdir/../STOP.1" 102d53f52d6SPaul E. McKenney then 103d53f52d6SPaul E. McKenney break; 104d53f52d6SPaul E. McKenney fi 105d53f52d6SPaul E. McKenney sleep 1 106d53f52d6SPaul E. McKenney else 107d53f52d6SPaul E. McKenney commandcompleted=1 108d53f52d6SPaul E. McKenney if test $kruntime -lt $seconds 109d53f52d6SPaul E. McKenney then 110d53f52d6SPaul E. McKenney echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1 111*f14c20cfSPaul E. McKenney grep "^(qemu) qemu:" $resdir/kvm-test-1-run*.sh.out >> $resdir/Warnings 2>&1 112d53f52d6SPaul E. McKenney killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`" 113d53f52d6SPaul E. McKenney if test -n "$killpid" 114d53f52d6SPaul E. McKenney then 115d53f52d6SPaul E. McKenney echo "ps -fp $killpid" >> $resdir/Warnings 2>&1 116d53f52d6SPaul E. McKenney ps -fp $killpid >> $resdir/Warnings 2>&1 117d53f52d6SPaul E. McKenney fi 118d53f52d6SPaul E. McKenney else 119d53f52d6SPaul E. McKenney echo ' ---' `date`: "Kernel done" 120d53f52d6SPaul E. McKenney fi 121d53f52d6SPaul E. McKenney break 122d53f52d6SPaul E. McKenney fi 123d53f52d6SPaul E. McKenneydone 124b3bf9632SPaul E. McKenneyif test -z "$qemu_pid" && test -s "$resdir/qemu-pid" 125d53f52d6SPaul E. McKenneythen 1269e528a84SPaul E. McKenney qemu_pid=`cat "$resdir/qemu-pid"` 127d53f52d6SPaul E. McKenneyfi 128b3bf9632SPaul E. McKenneyif test $commandcompleted -eq 0 && test -n "$qemu_pid" 129d53f52d6SPaul E. McKenneythen 130d53f52d6SPaul E. McKenney if ! test -f "$resdir/../STOP.1" 131d53f52d6SPaul E. McKenney then 1325f33809eSPaul E. McKenney echo Grace period for qemu job at pid $qemu_pid `date` 133d53f52d6SPaul E. McKenney fi 134d53f52d6SPaul E. McKenney oldline="`tail $resdir/console.log`" 135d53f52d6SPaul E. McKenney while : 136d53f52d6SPaul E. McKenney do 137d53f52d6SPaul E. McKenney if test -f "$resdir/../STOP.1" 138d53f52d6SPaul E. McKenney then 1395f33809eSPaul E. McKenney echo "PID $qemu_pid killed due to run STOP.1 request `date`" >> $resdir/Warnings 2>&1 140d53f52d6SPaul E. McKenney kill -KILL $qemu_pid 141d53f52d6SPaul E. McKenney break 142d53f52d6SPaul E. McKenney fi 143d53f52d6SPaul E. McKenney kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null` 144d53f52d6SPaul E. McKenney if kill -0 $qemu_pid > /dev/null 2>&1 145d53f52d6SPaul E. McKenney then 146d53f52d6SPaul E. McKenney : 147d53f52d6SPaul E. McKenney else 148d53f52d6SPaul E. McKenney break 149d53f52d6SPaul E. McKenney fi 150d53f52d6SPaul E. McKenney must_continue=no 151d53f52d6SPaul E. McKenney newline="`tail $resdir/console.log`" 152d53f52d6SPaul E. McKenney if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : ' 153d53f52d6SPaul E. McKenney then 154d53f52d6SPaul E. McKenney must_continue=yes 155d53f52d6SPaul E. McKenney fi 156d53f52d6SPaul E. McKenney last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`" 157d53f52d6SPaul E. McKenney if test -z "$last_ts" 158d53f52d6SPaul E. McKenney then 159d53f52d6SPaul E. McKenney last_ts=0 160d53f52d6SPaul E. McKenney fi 16106ca9144SPaul E. McKenney if test "$newline" != "$oldline" && test "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE)) && test "$last_ts" -gt "$TORTURE_SHUTDOWN_GRACE" 162d53f52d6SPaul E. McKenney then 163d53f52d6SPaul E. McKenney must_continue=yes 16406ca9144SPaul E. McKenney if test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE)) 16506ca9144SPaul E. McKenney then 16606ca9144SPaul E. McKenney echo Continuing at console.log time $last_ts \"`tail -n 1 $resdir/console.log`\" `date` 16706ca9144SPaul E. McKenney fi 168d53f52d6SPaul E. McKenney fi 169b3bf9632SPaul E. McKenney if test $must_continue = no && test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE)) 170d53f52d6SPaul E. McKenney then 1715f33809eSPaul E. McKenney echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds `date`" >> $resdir/Warnings 2>&1 172d53f52d6SPaul E. McKenney kill -KILL $qemu_pid 173d53f52d6SPaul E. McKenney break 174d53f52d6SPaul E. McKenney fi 175d53f52d6SPaul E. McKenney oldline=$newline 176d53f52d6SPaul E. McKenney sleep 10 177d53f52d6SPaul E. McKenney done 178d53f52d6SPaul E. McKenneyelif test -z "$qemu_pid" 179d53f52d6SPaul E. McKenneythen 180d53f52d6SPaul E. McKenney echo Unknown PID, cannot kill qemu command 181d53f52d6SPaul E. McKenneyfi 182d53f52d6SPaul E. McKenney 183d53f52d6SPaul E. McKenney# Tell the script that this run is done. 184d53f52d6SPaul E. McKenneyrm -f $resdir/build.run 185