torture: Add starvation events to error summary

This commit adds a string of the form "Starves: 10" to the summary
line for error conditions found in the console output.

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

1 files changed, 6 insertions, 1 deletions

diff --git a/tools/testing/selftests/rcutorture/bin/parse-console.sh b/tools/testing/selftests/rcutorture/bin/parse-console.sh
index 5eb49b7f864c..08aa7d50ae0e 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-console.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-console.sh
@@ -33,7 +33,7 @@ if grep -Pq '\x00' < $file
 then
         print_warning Console output contains nul bytes, old qemu still running?
 fi
-egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $1.diags
+egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state|rcu_.*kthread starved for' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $1.diags
 if test -s $1.diags
 then
         print_warning Assertion failure in $file $title
@@ -69,6 +69,11 @@ then
         then
                 summary="$summary  Stalls: $n_stalls"
         fi
+        n_starves=`grep -c 'rcu_.*kthread starved for' $1`
+        if test "$n_starves" -ne 0
+        then
+                summary="$summary  Starves: $n_starves"
+        fi
         print_warning Summary: $summary
 else
         rm $1.diags