tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 and 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 > $resdir/$ds/$idir/kvm.sh.out 2>&1
77 ret=$?
78 echo kvm.sh return code $ret for commit $i from branch $gitbr
79
80 # Move the build products to their resting place.
81 runresdir="`grep -m 1 '^Results directory:' < $resdir/$ds/$idir/kvm.sh.out | sed -e 's/^Results directory://'`"
82 mv $runresdir $resdir/$ds/$idir
83 rrd="`echo $runresdir | sed -e 's,^.*/,,'`"
84 echo Run results: $resdir/$ds/$idir/$rrd
85 if test "$ret" -ne 0
86 then
87 # Failure, so leave all evidence intact.
88 nfail=`expr $nfail + 1`
89 else
90 # Success, so remove large files to save about 1GB.
91 ( cd $resdir/$ds/$idir/$rrd; rm -f */vmlinux */bzImage */System.map */Module.symvers )
92 fi
93 done
94done
95date
96
97# Go back to the original commit.
98git checkout "$curcommit"
99
100if test $nfail -ne 0
101then
102 echo '!!! ' $nfail failures in $ntry 'runs!!!'
103 exit 1
104else
105 echo No failures in $ntry runs.
106 exit 0
107fi