torture: Better summary diagnostics for build failures

The reaction of kvm-recheck.sh is obscure at best, and easy to miss
completely.  This commit therefore prints "BUG: Build failed" in the
summary at the end of a run.  This commit also adds the line of dashes
in cases where performance info is not available, and also avoids
printing nonsense diagnostics in cases where some of the normal test
output is not available.  In addition, this commit saves off the .config
file even when the build fails.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

4 files changed, 21 insertions, 8 deletions

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
index 829186e19eb1..7f1ff1a8fc4b 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
@@ -35,7 +35,7 @@ configfile=`echo $i | sed -e 's/^.*\///'`
 ncs=`grep "Writes:  Total:" $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* Total: //' -e 's/ .*$//'`
 if test -z "$ncs"
 then
-        echo $configfile
+        echo "$configfile -------"
 else
         title="$configfile ------- $ncs acquisitions/releases"
         dur=`sed -e 's/^.* locktorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null`
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
index d75b1dc5ae53..307c4b95f325 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
@@ -35,7 +35,7 @@ configfile=`echo $i | sed -e 's/^.*\///'`
 ngps=`grep ver: $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* ver: //' -e 's/ .*$//'`
 if test -z "$ngps"
 then
-        echo $configfile
+        echo "$configfile -------"
 else
         title="$configfile ------- $ngps grace periods"
         dur=`sed -e 's/^.* rcutorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null`
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
index 26d78b7eaccf..ee1f6cae3d70 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
@@ -25,6 +25,7 @@
 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
 PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
+. tools/testing/selftests/rcutorture/bin/functions.sh
 for rd in "$@"
 do
         firsttime=1
@@ -39,13 +40,24 @@ do
                 fi
                 TORTURE_SUITE="`cat $i/../TORTURE_SUITE`"
                 kvm-recheck-${TORTURE_SUITE}.sh $i
-                configcheck.sh $i/.config $i/ConfigFragment
-                parse-build.sh $i/Make.out $configfile
-                parse-torture.sh $i/console.log $configfile
-                parse-console.sh $i/console.log $configfile
-                if test -r $i/Warnings
+                if test -f "$i/console.log"
                 then
-                        cat $i/Warnings
+                        configcheck.sh $i/.config $i/ConfigFragment
+                        parse-build.sh $i/Make.out $configfile
+                        parse-torture.sh $i/console.log $configfile
+                        parse-console.sh $i/console.log $configfile
+                        if test -r $i/Warnings
+                        then
+                                cat $i/Warnings
+                        fi
+                else
+                        if test -f "$i/qemu-cmd"
+                        then
+                                print_bug qemu failed
+                        else
+                                print_bug Build failed
+                        fi
+                        echo "   $i"
                 fi
         done
 done
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 2301982b8087..2bfdb48cd920 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -112,6 +112,7 @@ then
         fi
 else
         cp $builddir/Make*.out $resdir
+        cp $builddir/.config $resdir || :
         echo Build failed, not running KVM, see $resdir.
         if test -f $builddir.wait
         then