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Merge pull request #1936 from poettering/transient-timers

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Fix transient timers and other fixes
This commit is contained in:
David Herrmann 2015-11-18 08:05:12 +01:00
commit 2bcfd345ff
11 changed files with 239 additions and 97 deletions
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9
man/systemd.timer.xml
View File

@ -243,6 +243,15 @@
again after any work that is to be done is finished. Defaults
to <varname>false</varname>.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>RemainAfterExit=</varname></term>
<listitem><para>Takes a boolean argument. If true, an elapsed
timer will stay loaded, and its state remains
queriable. Defaults to
<varname>yes</varname>.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>

53
src/core/dbus-manager.c
View File

@ -644,6 +644,7 @@ static int transient_unit_from_message(
Unit **unit,
sd_bus_error *error) {
UnitType t;
Unit *u;
int r;
@ -651,23 +652,18 @@ static int transient_unit_from_message(
assert(message);
assert(name);
t = unit_name_to_type(name);
if (t < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name or type.");
if (!unit_vtable[t]->can_transient)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit type %s does not support transient units.", unit_type_to_string(t));
r = manager_load_unit(m, name, NULL, error, &u);
if (r < 0)
return r;
/* Check if the unit already exists or is already referenced,
* in a number of different ways. Note that to cater for unit
* types such as slice, we are generally fine with units that
* are marked UNIT_LOADED even even though nothing was
* actually loaded, as those unit types don't require a file
* on disk to validly load. */
if (!IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_LOADED) ||
u->fragment_path ||
u->source_path ||
!strv_isempty(u->dropin_paths) ||
u->refs ||
set_size(u->dependencies[UNIT_REFERENCED_BY]) > 0)
if (!unit_is_pristine(u))
return sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS, "Unit %s already exists.", name);
/* OK, the unit failed to load and is unreferenced, now let's
@ -681,6 +677,9 @@ static int transient_unit_from_message(
if (r < 0)
return r;
/* Now load the missing bits of the unit we just created */
manager_dispatch_load_queue(m);
*unit = u;
return 0;
@ -691,8 +690,6 @@ static int transient_aux_units_from_message(
sd_bus_message *message,
sd_bus_error *error) {
Unit *u;
char *name = NULL;
int r;
assert(m);
@ -703,20 +700,17 @@ static int transient_aux_units_from_message(
return r;
while ((r = sd_bus_message_enter_container(message, 'r', "sa(sv)")) > 0) {
const char *name = NULL;
Unit *u;
r = sd_bus_message_read(message, "s", &name);
if (r < 0)
return r;
r = transient_unit_from_message(m, message, name, &u, error);
if (r < 0 && r != -EEXIST)
if (r < 0)
return r;
if (r != -EEXIST) {
r = unit_load(u);
if (r < 0)
return r;
}
r = sd_bus_message_exit_container(message);
if (r < 0)
return r;
@ -735,7 +729,6 @@ static int method_start_transient_unit(sd_bus_message *message, void *userdata,
const char *name, *smode;
Manager *m = userdata;
JobMode mode;
UnitType t;
Unit *u;
int r;
@ -750,13 +743,6 @@ static int method_start_transient_unit(sd_bus_message *message, void *userdata,
if (r < 0)
return r;
t = unit_name_to_type(name);
if (t < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit type.");
if (!unit_vtable[t]->can_transient)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit type %s does not support transient units.", unit_type_to_string(t));
mode = job_mode_from_string(smode);
if (mode < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s is invalid.", smode);
@ -775,13 +761,6 @@ static int method_start_transient_unit(sd_bus_message *message, void *userdata,
if (r < 0)
return r;
/* And load this stub fully */
r = unit_load(u);
if (r < 0)
return r;
manager_dispatch_load_queue(m);
/* Finally, start it */
return bus_unit_queue_job(message, u, JOB_START, mode, false, error);
}

17
src/core/dbus-timer.c
View File

@ -182,6 +182,7 @@ const sd_bus_vtable bus_timer_vtable[] = {
SD_BUS_PROPERTY("AccuracyUSec", "t", bus_property_get_usec, offsetof(Timer, accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Persistent", "b", bus_property_get_bool, offsetof(Timer, persistent), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("WakeSystem", "b", bus_property_get_bool, offsetof(Timer, wake_system), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("RemainAfterElapse", "b", bus_property_get_bool, offsetof(Timer, remain_after_elapse), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_VTABLE_END
};
@ -283,7 +284,6 @@ static int bus_timer_set_transient_property(
return 1;
} else if (streq(name, "WakeSystem")) {
int b;
r = sd_bus_message_read(message, "b", &b);
@ -292,11 +292,24 @@ static int bus_timer_set_transient_property(
if (mode != UNIT_CHECK) {
t->wake_system = b;
unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, yes_no(t->wake_system));
unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, yes_no(b));
}
return 1;
} else if (streq(name, "RemainAfterElapse")) {
int b;
r = sd_bus_message_read(message, "b", &b);
if (r < 0)
return r;
if (mode != UNIT_CHECK) {
t->remain_after_elapse = b;
unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, yes_no(b));
}
return 1;
}
return 0;

73
src/core/job.c
View File

@ -500,17 +500,26 @@ static void job_change_type(Job *j, JobType newtype) {
}
static int job_perform_on_unit(Job **j) {
/* While we execute this operation the job might go away (for
* example: because it finishes immediately or is replaced by a new,
* conflicting job.) To make sure we don't access a freed job later on
* we store the id here, so that we can verify the job is still
* valid. */
Manager *m = (*j)->manager;
Unit *u = (*j)->unit;
JobType t = (*j)->type;
uint32_t id = (*j)->id;
uint32_t id;
Manager *m;
JobType t;
Unit *u;
int r;
/* While we execute this operation the job might go away (for
* example: because it finishes immediately or is replaced by
* a new, conflicting job.) To make sure we don't access a
* freed job later on we store the id here, so that we can
* verify the job is still valid. */
assert(j);
assert(*j);
m = (*j)->manager;
u = (*j)->unit;
t = (*j)->type;
id = (*j)->id;
switch (t) {
case JOB_START:
r = unit_start(u);
@ -518,6 +527,7 @@ static int job_perform_on_unit(Job **j) {
case JOB_RESTART:
t = JOB_STOP;
/* fall through */
case JOB_STOP:
r = unit_stop(u);
break;
@ -617,8 +627,7 @@ int job_run_and_invalidate(Job *j) {
}
_pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) {
const char *format;
const UnitStatusMessageFormats *format_table;
static const char *const generic_finished_start_job[_JOB_RESULT_MAX] = {
[JOB_DONE] = "Started %s.",
[JOB_TIMEOUT] = "Timed out starting %s.",
@ -644,11 +653,14 @@ _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobR
[JOB_SKIPPED] = "%s is not active.",
};
const UnitStatusMessageFormats *format_table;
const char *format;
assert(u);
assert(t >= 0);
assert(t < _JOB_TYPE_MAX);
if (t == JOB_START || t == JOB_STOP || t == JOB_RESTART) {
if (IN_SET(t, JOB_START, JOB_STOP, JOB_RESTART)) {
format_table = &UNIT_VTABLE(u)->status_message_formats;
if (format_table) {
format = t == JOB_START ? format_table->finished_start_job[result] :
@ -672,7 +684,6 @@ _pure_ static const char *job_get_status_message_format(Unit *u, JobType t, JobR
}
static void job_print_status_message(Unit *u, JobType t, JobResult result) {
const char *format;
static const char* const job_result_status_table[_JOB_RESULT_MAX] = {
[JOB_DONE] = ANSI_GREEN " OK " ANSI_NORMAL,
[JOB_TIMEOUT] = ANSI_HIGHLIGHT_RED " TIME " ANSI_NORMAL,
@ -683,10 +694,16 @@ static void job_print_status_message(Unit *u, JobType t, JobResult result) {
[JOB_UNSUPPORTED] = ANSI_HIGHLIGHT_YELLOW "UNSUPP" ANSI_NORMAL,
};
const char *format;
assert(u);
assert(t >= 0);
assert(t < _JOB_TYPE_MAX);
/* Reload status messages have traditionally not been printed to console. */
if (t == JOB_RELOAD)
return;
format = job_get_status_message_format(u, t, result);
if (!format)
return;
@ -699,10 +716,10 @@ static void job_print_status_message(Unit *u, JobType t, JobResult result) {
REENABLE_WARNING;
if (t == JOB_START && result == JOB_FAILED) {
_cleanup_free_ char *quoted = shell_maybe_quote(u->id);
_cleanup_free_ char *quoted;
manager_status_printf(u->manager, STATUS_TYPE_NORMAL, NULL,
"See 'systemctl status %s' for details.", strna(quoted));
quoted = shell_maybe_quote(u->id);
manager_status_printf(u->manager, STATUS_TYPE_NORMAL, NULL, "See 'systemctl status %s' for details.", strna(quoted));
}
}
@ -740,13 +757,22 @@ static void job_log_status_message(Unit *u, JobType t, JobResult result) {
snprintf(buf, sizeof(buf), format, unit_description(u));
REENABLE_WARNING;
if (t == JOB_START)
switch (t) {
case JOB_START:
mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED;
else if (t == JOB_STOP || t == JOB_RESTART)
mid = SD_MESSAGE_UNIT_STOPPED;
else if (t == JOB_RELOAD)
break;
case JOB_RELOAD:
mid = SD_MESSAGE_UNIT_RELOADED;
else {
break;
case JOB_STOP:
case JOB_RESTART:
mid = SD_MESSAGE_UNIT_STOPPED;
break;
default:
log_struct(job_result_log_level[result],
LOG_UNIT_ID(u),
LOG_MESSAGE("%s", buf),
@ -770,10 +796,7 @@ static void job_emit_status_message(Unit *u, JobType t, JobResult result) {
return;
job_log_status_message(u, t, result);
/* Reload status messages have traditionally not been printed to console. */
if (t != JOB_RELOAD)
job_print_status_message(u, t, result);
job_print_status_message(u, t, result);
}
static void job_fail_dependencies(Unit *u, UnitDependency d) {

1
src/core/load-fragment-gperf.gperf.m4
View File

@ -344,6 +344,7 @@ Timer.OnUnitActiveSec, config_parse_timer, 0,
Timer.OnUnitInactiveSec, config_parse_timer, 0, 0
Timer.Persistent, config_parse_bool, 0, offsetof(Timer, persistent)
Timer.WakeSystem, config_parse_bool, 0, offsetof(Timer, wake_system)
Timer.RemainAfterElapse, config_parse_bool, 0, offsetof(Timer, remain_after_elapse)
Timer.AccuracySec, config_parse_sec, 0, offsetof(Timer, accuracy_usec)
Timer.Unit, config_parse_trigger_unit, 0, 0
m4_dnl

47
src/core/timer.c
View File

@ -55,6 +55,7 @@ static void timer_init(Unit *u) {
t->next_elapse_monotonic_or_boottime = USEC_INFINITY;
t->next_elapse_realtime = USEC_INFINITY;
t->accuracy_usec = u->manager->default_timer_accuracy_usec;
t->remain_after_elapse = true;
}
void timer_free_values(Timer *t) {
@ -217,13 +218,15 @@ static void timer_dump(Unit *u, FILE *f, const char *prefix) {
"%sUnit: %s\n"
"%sPersistent: %s\n"
"%sWakeSystem: %s\n"
"%sAccuracy: %s\n",
"%sAccuracy: %s\n"
"%sRemainAfterElapse: %s\n",
prefix, timer_state_to_string(t->state),
prefix, timer_result_to_string(t->result),
prefix, trigger ? trigger->id : "n/a",
prefix, yes_no(t->persistent),
prefix, yes_no(t->wake_system),
prefix, format_timespan(buf, sizeof(buf), t->accuracy_usec, 1));
prefix, format_timespan(buf, sizeof(buf), t->accuracy_usec, 1),
prefix, yes_no(t->remain_after_elapse));
LIST_FOREACH(value, v, t->values) {
@ -275,13 +278,13 @@ static int timer_coldplug(Unit *u) {
assert(t);
assert(t->state == TIMER_DEAD);
if (t->deserialized_state != t->state) {
if (t->deserialized_state == t->state)
return 0;
if (t->deserialized_state == TIMER_WAITING)
timer_enter_waiting(t, false);
else
timer_set_state(t, t->deserialized_state);
}
if (t->deserialized_state == TIMER_WAITING)
timer_enter_waiting(t, false);
else
timer_set_state(t, t->deserialized_state);
return 0;
}
@ -295,6 +298,23 @@ static void timer_enter_dead(Timer *t, TimerResult f) {
timer_set_state(t, t->result != TIMER_SUCCESS ? TIMER_FAILED : TIMER_DEAD);
}
static void timer_enter_elapsed(Timer *t, bool leave_around) {
assert(t);
/* If a unit is marked with RemainAfterElapse=yes we leave it
* around even after it elapsed once, so that starting it
* later again does not necessarily mean immediate
* retriggering. We unconditionally leave units with
* TIMER_UNIT_ACTIVE or TIMER_UNIT_INACTIVE triggers around,
* since they might be restarted automatically at any time
* later on. */
if (t->remain_after_elapse || leave_around)
timer_set_state(t, TIMER_ELAPSED);
else
timer_enter_dead(t, TIMER_SUCCESS);
}
static usec_t monotonic_to_boottime(usec_t t) {
usec_t a, b;
@ -314,6 +334,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
bool found_monotonic = false, found_realtime = false;
usec_t ts_realtime, ts_monotonic;
usec_t base = 0;
bool leave_around = false;
TimerValue *v;
int r;
@ -374,7 +395,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
break;
case TIMER_UNIT_ACTIVE:
leave_around = true;
base = UNIT_TRIGGER(UNIT(t))->inactive_exit_timestamp.monotonic;
if (base <= 0)
@ -386,7 +407,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
break;
case TIMER_UNIT_INACTIVE:
leave_around = true;
base = UNIT_TRIGGER(UNIT(t))->inactive_enter_timestamp.monotonic;
if (base <= 0)
@ -423,14 +444,16 @@ static void timer_enter_waiting(Timer *t, bool initial) {
if (!found_monotonic && !found_realtime) {
log_unit_debug(UNIT(t), "Timer is elapsed.");
timer_set_state(t, TIMER_ELAPSED);
timer_enter_elapsed(t, leave_around);
return;
}
if (found_monotonic) {
char buf[FORMAT_TIMESPAN_MAX];
usec_t left;
log_unit_debug(UNIT(t), "Monotonic timer elapses in %s.", format_timespan(buf, sizeof(buf), t->next_elapse_monotonic_or_boottime > ts_monotonic ? t->next_elapse_monotonic_or_boottime - ts_monotonic : 0, 0));
left = t->next_elapse_monotonic_or_boottime > ts_monotonic ? t->next_elapse_monotonic_or_boottime - ts_monotonic : 0;
log_unit_debug(UNIT(t), "Monotonic timer elapses in %s.", format_timespan(buf, sizeof(buf), left, 0));
if (t->monotonic_event_source) {
r = sd_event_source_set_time(t->monotonic_event_source, t->next_elapse_monotonic_or_boottime);

1
src/core/timer.h
View File

@ -73,6 +73,7 @@ struct Timer {
bool persistent;
bool wake_system;
bool remain_after_elapse;
char *stamp_path;
};

55
src/core/unit.c
View File

@ -1347,12 +1347,18 @@ static bool unit_assert_test(Unit *u) {
return u->assert_result;
}
void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) {
DISABLE_WARNING_FORMAT_NONLITERAL;
manager_status_printf(u->manager, STATUS_TYPE_NORMAL, status, unit_status_msg_format, unit_description(u));
REENABLE_WARNING;
}
_pure_ static const char* unit_get_status_message_format(Unit *u, JobType t) {
const char *format;
const UnitStatusMessageFormats *format_table;
assert(u);
assert(t == JOB_START || t == JOB_STOP || t == JOB_RELOAD);
assert(IN_SET(t, JOB_START, JOB_STOP, JOB_RELOAD));
if (t != JOB_RELOAD) {
format_table = &UNIT_VTABLE(u)->status_message_formats;
@ -1377,6 +1383,10 @@ static void unit_status_print_starting_stopping(Unit *u, JobType t) {
assert(u);
/* Reload status messages have traditionally not been printed to console. */
if (!IN_SET(t, JOB_START, JOB_STOP))
return;
format = unit_get_status_message_format(u, t);
DISABLE_WARNING_FORMAT_NONLITERAL;
@ -1391,7 +1401,7 @@ static void unit_status_log_starting_stopping_reloading(Unit *u, JobType t) {
assert(u);
if (t != JOB_START && t != JOB_STOP && t != JOB_RELOAD)
if (!IN_SET(t, JOB_START, JOB_STOP, JOB_RELOAD))
return;
if (log_on_console())
@ -1423,12 +1433,12 @@ static void unit_status_log_starting_stopping_reloading(Unit *u, JobType t) {
}
void unit_status_emit_starting_stopping_reloading(Unit *u, JobType t) {
assert(u);
assert(t >= 0);
assert(t < _JOB_TYPE_MAX);
unit_status_log_starting_stopping_reloading(u, t);
/* Reload status messages have traditionally not been printed to console. */
if (t != JOB_RELOAD)
unit_status_print_starting_stopping(u, t);
unit_status_print_starting_stopping(u, t);
}
/* Errors:
@ -2896,13 +2906,6 @@ int unit_coldplug(Unit *u) {
return 0;
}
void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) {
DISABLE_WARNING_FORMAT_NONLITERAL;
manager_status_printf(u->manager, STATUS_TYPE_NORMAL,
status, unit_status_msg_format, unit_description(u));
REENABLE_WARNING;
}
bool unit_need_daemon_reload(Unit *u) {
_cleanup_strv_free_ char **t = NULL;
char **path;
@ -3428,7 +3431,15 @@ int unit_make_transient(Unit *u) {
u->load_state = UNIT_STUB;
u->load_error = 0;
u->transient = true;
u->fragment_path = mfree(u->fragment_path);
u->source_path = mfree(u->source_path);
u->dropin_paths = strv_free(u->dropin_paths);
u->fragment_mtime = u->source_mtime = u->dropin_mtime = 0;
unit_add_to_dbus_queue(u);
unit_add_to_gc_queue(u);
unit_add_to_load_queue(u);
return 0;
}
@ -3704,3 +3715,21 @@ int unit_fail_if_symlink(Unit *u, const char* where) {
return -ELOOP;
}
bool unit_is_pristine(Unit *u) {
assert(u);
/* Check if the unit already exists or is already around,
* in a number of different ways. Note that to cater for unit
* types such as slice, we are generally fine with units that
* are marked UNIT_LOADED even even though nothing was
* actually loaded, as those unit types don't require a file
* on disk to validly load. */
return !(!IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_LOADED) ||
u->fragment_path ||
u->source_path ||
!strv_isempty(u->dropin_paths) ||
u->job ||
u->merged_into);
}

2
src/core/unit.h
View File

@ -586,6 +586,8 @@ int unit_require_mounts_for(Unit *u, const char *path);
bool unit_type_supported(UnitType t);
bool unit_is_pristine(Unit *u);
static inline bool unit_supported(Unit *u) {
return unit_type_supported(u->type);
}

76
src/run/run.c
View File

@ -648,6 +648,11 @@ static int transient_timer_set_properties(sd_bus_message *m) {
if (r < 0)
return r;
/* Automatically clean up our transient timers */
r = sd_bus_message_append(m, "(sv)", "RemainAfterElapse", "b", false);
if (r < 0)
return r;
if (arg_on_active) {
r = sd_bus_message_append(m, "(sv)", "OnActiveSec", "t", arg_on_active);
if (r < 0)
@ -687,6 +692,51 @@ static int transient_timer_set_properties(sd_bus_message *m) {
return 0;
}
static int make_unit_name(sd_bus *bus, UnitType t, char **ret) {
const char *unique, *id;
char *p;
int r;
assert(bus);
assert(t >= 0);
assert(t < _UNIT_TYPE_MAX);
r = sd_bus_get_unique_name(bus, &unique);
if (r < 0) {
sd_id128_t rnd;
/* We couldn't get the unique name, which is a pretty
* common case if we are connected to systemd
* directly. In that case, just pick a random uuid as
* name */
r = sd_id128_randomize(&rnd);
if (r < 0)
return log_error_errno(r, "Failed to generate random run unit name: %m");
if (asprintf(ret, "run-r" SD_ID128_FORMAT_STR ".%s", SD_ID128_FORMAT_VAL(rnd), unit_type_to_string(t)) < 0)
return log_oom();
return 0;
}
/* We managed to get the unique name, then let's use that to
* name our transient units. */
id = startswith(unique, ":1.");
if (!id) {
log_error("Unique name %s has unexpected format.", unique);
return -EINVAL;
}
p = strjoin("run-u", id, ".", unit_type_to_string(t), NULL);
if (!p)
return log_oom();
*ret = p;
return 0;
}
static int start_transient_service(
sd_bus *bus,
char **argv) {
@ -763,8 +813,11 @@ static int start_transient_service(
r = unit_name_mangle_with_suffix(arg_unit, UNIT_NAME_NOGLOB, ".service", &service);
if (r < 0)
return log_error_errno(r, "Failed to mangle unit name: %m");
} else if (asprintf(&service, "run-"PID_FMT".service", getpid()) < 0)
return log_oom();
} else {
r = make_unit_name(bus, UNIT_SERVICE, &service);
if (r < 0)
return r;
}
r = sd_bus_message_new_method_call(
bus,
@ -882,8 +935,11 @@ static int start_transient_scope(
r = unit_name_mangle_with_suffix(arg_unit, UNIT_NAME_NOGLOB, ".scope", &scope);
if (r < 0)
return log_error_errno(r, "Failed to mangle scope name: %m");
} else if (asprintf(&scope, "run-"PID_FMT".scope", getpid()) < 0)
return log_oom();
} else {
r = make_unit_name(bus, UNIT_SCOPE, &scope);
if (r < 0)
return r;
}
r = sd_bus_message_new_method_call(
bus,
@ -1052,9 +1108,15 @@ static int start_transient_timer(
break;
}
} else if ((asprintf(&service, "run-"PID_FMT".service", getpid()) < 0) ||
(asprintf(&timer, "run-"PID_FMT".timer", getpid()) < 0))
return log_oom();
} else {
r = make_unit_name(bus, UNIT_SERVICE, &service);
if (r < 0)
return r;
r = unit_name_change_suffix(service, ".timer", &timer);
if (r < 0)
return log_error_errno(r, "Failed to change unit suffix: %m");
}
r = sd_bus_message_new_method_call(
bus,

2
sysctl.d/50-coredump.conf.in
View File

@ -9,4 +9,4 @@
# and systemd-coredump(8) and core(5) for the explanation of the
# setting below.
kernel.core_pattern=|@rootlibexecdir@/systemd-coredump %p %u %g %s %t %e
kernel.core_pattern=|@rootlibexecdir@/systemd-coredump %P %u %g %s %t %e