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="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.XXXXXX`" 17trap 'rm -rf $T' 0 18 19echo ---- Running batch $* 20# Check arguments 21runfiles= 22for i in "$@" 23do 24 if ! echo $i | grep -q '^[^/.a-z]\+\(\.[0-9]\+\)\?$' 25 then 26 echo Bad scenario name: \"$i\" 1>&2 27 exit 1 28 fi 29 if ! test -d "$i" 30 then 31 echo Scenario name not a directory: \"$i\" 1>&2 32 exit 2 33 fi 34 if ! test -f "$i/qemu-cmd" 35 then 36 echo Scenario lacks a command file: \"$i/qemu-cmd\" 1>&2 37 exit 3 38 fi 39 rm -f $i/build.* 40 touch $i/build.run 41 runfiles="$runfiles $i/build.run" 42done 43 44# Extract settings from the qemu-cmd file. 45grep '^#' $1/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings 46. $T/qemu-cmd-settings 47 48# Start up jitter, start each scenario, wait, end jitter. 49echo ---- System running test: `uname -a` 50echo ---- Starting kernels. `date` | tee -a log 51$TORTURE_JITTER_START 52kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk 53for i in "$@" 54do 55 echo ---- System running test: `uname -a` > $i/kvm-test-1-run-qemu.sh.out 56 echo > $i/kvm-test-1-run-qemu.sh.out 57 export TORTURE_AFFINITY= 58 kvm-get-cpus-script.sh $T/cpuarray.awk $T/cpubatches.awk $T/cpustate 59 if test -z "${TORTURE_NO_AFFINITY}" 60 then 61 cat << ' ___EOF___' >> $T/cpubatches.awk 62 END { 63 affinitylist = ""; 64 if (!gotcpus()) { 65 print "echo No CPU-affinity information, so no taskset command."; 66 } else if (cpu_count !~ /^[0-9][0-9]*$/) { 67 print "echo " scenario ": Bogus number of CPUs (old qemu-cmd?), so no taskset command."; 68 } else { 69 affinitylist = nextcpus(cpu_count); 70 if (!(affinitylist ~ /^[0-9,-][0-9,-]*$/)) 71 print "echo " scenario ": Bogus CPU-affinity information, so no taskset command."; 72 else if (!dumpcpustate()) 73 print "echo " scenario ": Could not dump state, so no taskset command."; 74 else 75 print "export TORTURE_AFFINITY=" affinitylist; 76 } 77 } 78 ___EOF___ 79 cpu_count="`grep '# TORTURE_CPU_COUNT=' $i/qemu-cmd | sed -e 's/^.*=//'`" 80 affinity_export="`awk -f $T/cpubatches.awk -v cpu_count="$cpu_count" -v scenario=$i < /dev/null`" 81 $affinity_export 82 fi 83 kvm-test-1-run-qemu.sh $i >> $i/kvm-test-1-run-qemu.sh.out 2>&1 & 84done 85for i in $runfiles 86do 87 while ls $i > /dev/null 2>&1 88 do 89 : 90 done 91done 92echo ---- All kernel runs complete. `date` | tee -a log 93$TORTURE_JITTER_STOP 94