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Fix issue with system time set back (#24131)

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Fixes #6036

(cherry picked from commit 5ded3917a161d87984d74d70b5eb2a254e54b44e)
This commit is contained in:
João Loureiro 2022-08-08 15:32:19 +02:00 committed by Zbigniew Jędrzejewski-Szmek
parent 4fdca1ab9e
commit 37b54927d3
2 changed files with 39 additions and 23 deletions
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23
src/core/timer.c
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@ -394,19 +394,18 @@ static void timer_enter_waiting(Timer *t, bool time_change) {
if (v->base == TIMER_CALENDAR) {
usec_t b, rebased;
/* If we know the last time this was
* triggered, schedule the job based relative
* to that. If we don't, just start from
* the activation time. */
if (t->last_trigger.realtime > 0)
/* Update last_trigger to 'now' in case the system time changes, so that
* next_elapse is not stuck with a future date. */
if (time_change)
b = ts.realtime;
/* If we know the last time this was triggered, schedule the job based relative
* to that. If we don't, just start from the activation time. */
else if (t->last_trigger.realtime > 0)
b = t->last_trigger.realtime;
else {
if (state_translation_table[t->state] == UNIT_ACTIVE)
b = UNIT(t)->inactive_exit_timestamp.realtime;
else
b = ts.realtime;
}
else if (state_translation_table[t->state] == UNIT_ACTIVE)
b = UNIT(t)->inactive_exit_timestamp.realtime;
else
b = ts.realtime;
r = calendar_spec_next_usec(v->calendar_spec, b, &v->next_elapse);
if (r < 0)

39
test/units/testsuite-53.sh
View File

@ -5,27 +5,44 @@ set -o pipefail
: >/failed
# Run a timer for every 15 minutes before setting the current time
systemd-run --unit test-timer-1 --on-calendar "*:0/15:0" true
# Reset host date to current time, 3 days in the past.
date -s "-3 days"
# Run a timer for every 15 minutes.
systemd-run --unit test-timer --on-calendar "*:0/15:0" true
# Run another timer for every 15 minutes, after setting the time
systemd-run --unit test-timer-2 --on-calendar "*:0/15:0" true
next_elapsed=$(systemctl show test-timer.timer -p NextElapseUSecRealtime --value)
next_elapsed=$(date -d "${next_elapsed}" +%s)
next_elapsed_t1=$(systemctl show test-timer-1.timer -p NextElapseUSecRealtime --value)
next_elapsed_t1=$(date -d "${next_elapsed_t1}" +%s)
now=$(date +%s)
time_delta=$((next_elapsed - now))
time_delta_t1=$((next_elapsed_t1 - now))
next_elapsed_t2=$(systemctl show test-timer-2.timer -p NextElapseUSecRealtime --value)
next_elapsed_t2=$(date -d "${next_elapsed_t2}" +%s)
now=$(date +%s)
time_delta_t2=$((next_elapsed_t2 - now))
# Check that the timer will elapse in less than 20 minutes.
((0 < time_delta && time_delta < 1200)) || {
((0 < time_delta_t1 && time_delta_t1 < 1200)) || {
echo 'Timer elapse outside of the expected 20 minute window.'
echo " next_elapsed=${next_elapsed}"
echo " next_elapsed_t1=${next_elapsed_t1}"
echo " now=${now}"
echo " time_delta=${time_delta}"
echo " time_delta_t1=${time_delta_t1}"
echo ''
} >>/failed
} >>/failed_t1
if test ! -s /failed ; then
rm -f /failed
# Check that the timer will elapse in less than 20 minutes.
((0 < time_delta_t2 && time_delta_t2 < 1200)) || {
echo 'Timer elapse outside of the expected 20 minute window.'
echo " next_elapsed_t2=${next_elapsed_t2}"
echo " now=${now}"
echo " time_delta_t2=${time_delta_t2}"
echo ''
} >>/failed_t2
if test ! -s /failed_t1 && test ! -s /failed_t2; then
rm -f /failed_t*
touch /testok
fi