Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
73 lines
1.2 KiB
Bash
73 lines
1.2 KiB
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# description: event tracing - enable/disable with subsystem level files
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# requires: set_event events/sched/enable
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# flags: instance
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do_reset() {
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echo > set_event
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clear_trace
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}
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fail() { #msg
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echo $1
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exit_fail
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}
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# As reading trace can last forever, simply look for 3 different
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# events then exit out of reading the file. If there's not 3 different
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# events, then the test has failed.
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check_unique() {
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cat trace | grep -v '^#' | awk '
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BEGIN { cnt = 0; }
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{
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for (i = 0; i < cnt; i++) {
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if (event[i] == $5) {
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break;
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}
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}
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if (i == cnt) {
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event[cnt++] = $5;
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if (cnt > 2) {
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exit;
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}
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}
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}
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END {
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printf "%d", cnt;
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}'
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}
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echo 'sched:*' > set_event
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yield
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count=`check_unique`
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if [ $count -lt 3 ]; then
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fail "at least fork, exec and exit events should be recorded"
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fi
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do_reset
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echo 1 > events/sched/enable
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yield
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count=`check_unique`
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if [ $count -lt 3 ]; then
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fail "at least fork, exec and exit events should be recorded"
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fi
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do_reset
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echo 0 > events/sched/enable
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yield
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count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
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if [ $count -ne 0 ]; then
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fail "any of scheduler events should not be recorded"
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fi
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exit 0
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