tests/regression/tools/health/test_thread_stall

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com>
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License, version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This program is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 # more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # this program; if not, write to the Free Software Foundation, Inc., 51
  16 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 TEST_DESC="Health check - Thread stall"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/../../..
  22 LTTNG_BIN="lttng"
  23 SESSION_NAME="health_thread_stall"
  24 EVENT_NAME="bogus"
  25 HEALTH_CHECK_BIN="health_check"
  26 SESSIOND_PRELOAD=".libs/libhealthstall.so"
  27 NUM_TESTS=12
  28
  29 source $TESTDIR/utils/utils.sh
  30
  31 if [ ! -f "$CURDIR/$SESSIOND_PRELOAD" ]; then
  32         BAIL_OUT "libhealthstall.so not available for this test."
  33 fi
  34
  35 function test_thread_stall
  36 {
  37         test_thread_stall_name="$1"
  38         test_thread_exit_code="$2"
  39
  40         diag "Test health failure with ${test_thread_stall_name}"
  41
  42         # Activate testpoints
  43         export LTTNG_TESTPOINT_ENABLE=1
  44
  45         # Activate specific thread exit
  46         export ${test_thread_stall_name}_STALL=1
  47
  48         # Spawn sessiond with preload healthexit lib
  49         export LD_PRELOAD="$CURDIR/$SESSIOND_PRELOAD"
  50         # Set the socket timeout to 5 so the health check delta is set to 25.
  51         export LTTNG_NETWORK_SOCKET_TIMEOUT=5
  52         start_lttng_sessiond
  53
  54         # Cleanup some env. var.
  55         unset LD_PRELOAD
  56         unset ${test_thread_stall_name}_STALL
  57
  58         # Check initial health status
  59         $CURDIR/$HEALTH_CHECK_BIN &> /dev/null
  60
  61         # Wait
  62         sleep 30
  63
  64         # Check health status, exit code should indicate failure
  65         $CURDIR/$HEALTH_CHECK_BIN &> /dev/null
  66
  67         health_check_exit_code=$?
  68
  69         if [ $health_check_exit_code -eq $test_thread_exit_code ]; then
  70                 pass "Validate that ${test_thread_stall_name} is stalled"
  71         else
  72                 fail "Validate that ${test_thread_stall_name} is stalled"
  73                 diag "Health returned: $health_check_exit_code"
  74
  75                 stop_lttng_sessiond
  76                 return 1
  77         fi
  78
  79         # Wait
  80         sleep 40
  81
  82         # Check health status, exit code should now pass
  83         $CURDIR/$HEALTH_CHECK_BIN &> /dev/null
  84
  85         health_check_exit_code=$?
  86
  87         if [ $health_check_exit_code -eq 0 ]; then
  88                 pass "Validate that ${test_thread_stall_name} is no longer stalled"
  89                 stop_lttng_sessiond
  90         else
  91                 fail "Validate that ${test_thread_stall_name} is no longer stalled"
  92                 diag "Health returned: $health_check_exit_code\n"
  93                 stop_lttng_sessiond
  94                 return 1
  95         fi
  96
  97
  98 }
  99
 100 plan_tests $NUM_TESTS
 101
 102 print_test_banner "$TEST_DESC"
 103
 104 THREAD=("LTTNG_THREAD_MANAGE_CLIENTS"
 105         "LTTNG_THREAD_MANAGE_APPS"
 106 # This thread is a little bit tricky to stall,
 107 # need to send some commands and setup an app.
 108 #       "LTTNG_THREAD_REG_APPS"
 109 )
 110
 111 # Exit code value to indicate specific thread failure
 112 EXIT_CODE=(1
 113            2
 114 #          4
 115 )
 116
 117 THREAD_COUNT=${#THREAD[@]}
 118 i=0
 119 while [ "$i" -lt "$THREAD_COUNT" ]; do
 120         test_thread_stall "${THREAD[$i]}" "${EXIT_CODE[$i]}"
 121
 122         if [ $? -eq 1 ]; then
 123                 exit 1
 124         fi
 125
 126         let "i++"
 127 done
 128
 129 # The manage kernel thread is only spawned if we are root
 130 if [ "$(id -u)" == "0" ]; then
 131         isroot=1
 132 else
 133         isroot=0
 134 fi
 135
 136 skip $isroot "Root access is needed. Skipping LTTNG_THREAD_MANAGE_KERNEL tests." "4" ||
 137 {
 138         test_thread_stall "LTTNG_THREAD_MANAGE_KERNEL" "8"
 139 }