1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Carry out a kvm-based run for the specified batch of scenarios, which 5# might have been built by --build-only kvm.sh run. 6# 7# Usage: kvm-test-1-run-batch.sh SCENARIO [ SCENARIO ... ] 8# 9# Each SCENARIO is the name of a directory in the current directory 10# containing a ready-to-run qemu-cmd file. 11# 12# Copyright (C) 2021 Facebook, Inc. 13# 14# Authors: Paul E. McKenney <paulmck@kernel.org> 15 16T=${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.$$ 17trap 'rm -rf $T' 0 18mkdir $T 19 20echo ---- Running batch $* 21# Check arguments 22runfiles= 23for i in "$@" 24do 25 if ! echo $i | grep -q '^[^/.a-z]\+\(\.[0-9]\+\)\?$' 26 then 27 echo Bad scenario name: \"$i\" 1>&2 28 exit 1 29 fi 30 if ! test -d "$i" 31 then 32 echo Scenario name not a directory: \"$i\" 1>&2 33 exit 2 34 fi 35 if ! test -f "$i/qemu-cmd" 36 then 37 echo Scenario lacks a command file: \"$i/qemu-cmd\" 1>&2 38 exit 3 39 fi 40 rm -f $i/build.* 41 touch $i/build.run 42 runfiles="$runfiles $i/build.run" 43done 44 45# Extract settings from the qemu-cmd file. 46grep '^#' $1/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings 47. $T/qemu-cmd-settings 48 49# Start up jitter, start each scenario, wait, end jitter. 50echo ---- System running test: `uname -a` 51echo ---- Starting kernels. `date` | tee -a log 52$TORTURE_JITTER_START 53kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk 54for i in "$@" 55do 56 echo ---- System running test: `uname -a` > $i/kvm-test-1-run-qemu.sh.out 57 echo > $i/kvm-test-1-run-qemu.sh.out 58 export TORTURE_AFFINITY= 59 kvm-get-cpus-script.sh $T/cpuarray.awk $T/cpubatches.awk $T/cpustate 60 cat << ' ___EOF___' >> $T/cpubatches.awk 61 END { 62 affinitylist = ""; 63 if (!gotcpus()) { 64 print "echo No CPU-affinity information, so no taskset command."; 65 } else if (cpu_count !~ /^[0-9][0-9]*$/) { 66 print "echo " scenario ": Bogus number of CPUs (old qemu-cmd?), so no taskset command."; 67 } else { 68 affinitylist = nextcpus(cpu_count); 69 if (!(affinitylist ~ /^[0-9,-][0-9,-]*$/)) 70 print "echo " scenario ": Bogus CPU-affinity information, so no taskset command."; 71 else if (!dumpcpustate()) 72 print "echo " scenario ": Could not dump state, so no taskset command."; 73 else 74 print "export TORTURE_AFFINITY=" affinitylist; 75 } 76 } 77 ___EOF___ 78 cpu_count="`grep '# TORTURE_CPU_COUNT=' $i/qemu-cmd | sed -e 's/^.*=//'`" 79 affinity_export="`awk -f $T/cpubatches.awk -v cpu_count="$cpu_count" -v scenario=$i < /dev/null`" 80 $affinity_export 81 kvm-test-1-run-qemu.sh $i >> $i/kvm-test-1-run-qemu.sh.out 2>&1 & 82done 83for i in $runfiles 84do 85 while ls $i > /dev/null 2>&1 86 do 87 : 88 done 89done 90echo ---- All kernel runs complete. `date` | tee -a log 91$TORTURE_JITTER_STOP 92