110 lines
2.1 KiB
Bash
Executable File
110 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Test Case 2
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#
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export TCID="cpuhotplug02"
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export TST_TOTAL=1
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# Includes:
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. test.sh
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. cpuhotplug_testsuite.sh
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. cpuhotplug_hotplug.sh
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cat <<EOF
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Name: $TCID
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Date: `date`
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Desc: What happens to a process when its CPU is offlined?
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EOF
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usage()
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{
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cat << EOF
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usage: $0 -c cpu -l loop
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OPTIONS
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-c cpu which is specified for testing
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-l number of cycle test
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EOF
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exit 1
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}
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# do_clean()
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#
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# Callback to be executed when script exits from a user interrupt
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# or regular program termination.
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#
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do_clean()
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{
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kill_pid ${SPIN_LOOP_PID}
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}
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while getopts c:l: OPTION; do
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case $OPTION in
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c)
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CPU_TO_TEST=$OPTARG;;
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l)
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HOTPLUG02_LOOPS=$OPTARG;;
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?)
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usage;;
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esac
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done
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LOOP_COUNT=1
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if [ $(get_present_cpus_num) -lt 2 ]; then
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tst_brkm TCONF "system doesn't have required CPU hotplug support"
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fi
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if [ -z "${CPU_TO_TEST}" ]; then
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tst_brkm TBROK "usage: ${0##*/} <CPU to online>"
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fi
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# Validate the specified CPU is available
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if ! cpu_is_valid "${CPU_TO_TEST}" ; then
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tst_brkm TCONF "cpu${CPU_TO_TEST} doesn't support hotplug"
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fi
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# Validate the specified CPU is online; if not, online it
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if ! cpu_is_online "${CPU_TO_TEST}" ; then
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if ! online_cpu ${CPU_TO_TEST}; then
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tst_brkm TBROK "CPU${CPU_TO_TEST} cannot be onlined"
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fi
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fi
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TST_CLEANUP=do_clean
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# Start up a process that just uses CPU cycles
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cpuhotplug_do_spin_loop > /dev/null&
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SPIN_LOOP_PID=$!
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sleep 5
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until [ $LOOP_COUNT -gt $HOTPLUG02_LOOPS ]; do
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# Move spin_loop.sh to the CPU to offline.
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set_affinity ${SPIN_LOOP_PID} ${CPU_TO_TEST}
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# Verify the process migrated to the CPU we intended it to go to
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offline_cpu ${CPU_TO_TEST}
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NEW_CPU=`ps --pid=${SPIN_LOOP_PID} -o psr --no-headers`
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if [ -z "${NEW_CPU}" ]; then
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tst_brkm TBROK "PID ${SPIN_LOOP_PID} no longer running"
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fi
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if [ ${CPU_TO_TEST} = ${NEW_CPU} ]; then
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tst_resm TFAIL "process did not change from CPU ${NEW_CPU}"
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tst_exit
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fi
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# Turn the CPU back online just to see what happens.
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online_cpu ${CPU_TO_TEST}
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LOOP_COUNT=$((LOOP_COUNT+1))
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done
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tst_resm TPASS "turned off CPU ${CPU_TO_TEST}, process migrated to \
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CPU ${NEW_CPU}"
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sleep 2
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tst_exit
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