1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Run a group of kvm.sh tests on the specified commits. This currently 5# unconditionally does three-minute runs on each scenario in CFLIST, 6# taking advantage of all available CPUs and trusting the "make" utility. 7# In the short term, adjustments can be made by editing this script and 8# CFLIST. If some adjustments appear to have ongoing value, this script 9# might grow some command-line arguments. 10# 11# Usage: kvm-check-branches.sh commit1 commit2..commit3 commit4 ... 12# 13# This script considers its arguments one at a time. If more elaborate 14# specification of commits is needed, please use "git rev-list" to 15# produce something that this simple script can understand. The reason 16# for retaining the simplicity is that it allows the user to more easily 17# see which commit came from which branch. 18# 19# This script creates a yyyy.mm.dd-hh.mm.ss-group entry in the "res" 20# directory. The calls to kvm.sh create the usual entries, but this script 21# moves them under the yyyy.mm.dd-hh.mm.ss-group entry, each in its own 22# directory numbered in run order, that is, "0001", "0002", and so on. 23# For successful runs, the large build artifacts are removed. Doing this 24# reduces the disk space required by about two orders of magnitude for 25# successful runs. 26# 27# Copyright (C) Facebook, 2020 28# 29# Authors: Paul E. McKenney <paulmck@kernel.org> 30 31if ! git status > /dev/null 2>&1 32then 33 echo '!!!' This script needs to run in a git archive. 1>&2 34 echo '!!!' Giving up. 1>&2 35 exit 1 36fi 37 38# Remember where we started so that we can get back at the end. 39curcommit="`git status | head -1 | awk '{ print $NF }'`" 40 41nfail=0 42ntry=0 43resdir="tools/testing/selftests/rcutorture/res" 44ds="`date +%Y.%m.%d-%H.%M.%S`-group" 45if ! test -e $resdir 46then 47 mkdir $resdir || : 48fi 49mkdir $resdir/$ds 50echo Results directory: $resdir/$ds 51 52RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE 53PATH=${RCUTORTURE}/bin:$PATH; export PATH 54. functions.sh 55echo Using all `identify_qemu_vcpus` CPUs. 56 57# Each pass through this loop does one command-line argument. 58for gitbr in $@ 59do 60 echo ' --- git branch ' $gitbr 61 62 # Each pass through this loop tests one commit. 63 for i in `git rev-list "$gitbr"` 64 do 65 ntry=`expr $ntry + 1` 66 idir=`awk -v ntry="$ntry" 'END { printf "%04d", ntry; }' < /dev/null` 67 echo ' --- commit ' $i from branch $gitbr 68 date 69 mkdir $resdir/$ds/$idir 70 echo $gitbr > $resdir/$ds/$idir/gitbr 71 echo $i >> $resdir/$ds/$idir/gitbr 72 73 # Test the specified commit. 74 git checkout $i > $resdir/$ds/$idir/git-checkout.out 2>&1 75 echo git checkout return code: $? "(Commit $ntry: $i)" 76 kvm.sh --allcpus --duration 3 --trust-make --datestamp "$ds/$idir" > $resdir/$ds/$idir/kvm.sh.out 2>&1 77 ret=$? 78 echo kvm.sh return code $ret for commit $i from branch $gitbr 79 echo Run results: $resdir/$ds/$idir 80 if test "$ret" -ne 0 81 then 82 # Failure, so leave all evidence intact. 83 nfail=`expr $nfail + 1` 84 else 85 # Success, so remove large files to save about 1GB. 86 ( cd $resdir/$ds/$idir/$rrd; rm -f */vmlinux */bzImage */System.map */Module.symvers ) 87 fi 88 done 89done 90date 91 92# Go back to the original commit. 93git checkout "$curcommit" 94 95if test $nfail -ne 0 96then 97 echo '!!! ' $nfail failures in $ntry 'runs!!!' 98 exit 1 99else 100 echo No failures in $ntry runs. 101 exit 0 102fi 103