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-rw-r--r--src/core/cgroup.c2
-rw-r--r--src/core/dbus-scope.c2
-rw-r--r--src/core/scope.c16
-rw-r--r--src/core/scope.h1
-rw-r--r--src/core/service.c2
-rw-r--r--src/core/unit.c98
-rw-r--r--src/core/unit.h1
7 files changed, 93 insertions, 29 deletions
diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index 94d1161605..8b0f11ed50 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -1705,7 +1705,7 @@ int manager_setup_cgroup(Manager *m) {
/* also, move all other userspace processes remaining
* in the root cgroup into that scope. */
- r = cg_migrate(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_root, SYSTEMD_CGROUP_CONTROLLER, scope_path, false);
+ r = cg_migrate(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_root, SYSTEMD_CGROUP_CONTROLLER, scope_path, 0);
if (r < 0)
log_warning_errno(r, "Couldn't move remaining userspace processes, ignoring: %m");
diff --git a/src/core/dbus-scope.c b/src/core/dbus-scope.c
index f557eedfc3..1abaf9f658 100644
--- a/src/core/dbus-scope.c
+++ b/src/core/dbus-scope.c
@@ -225,5 +225,5 @@ int bus_scope_send_request_stop(Scope *s) {
if (r < 0)
return r;
- return sd_bus_send_to(UNIT(s)->manager->api_bus, m, /* s->controller */ NULL, NULL);
+ return sd_bus_send_to(UNIT(s)->manager->api_bus, m, s->controller, NULL);
}
diff --git a/src/core/scope.c b/src/core/scope.c
index decd1a1f3f..b45e238974 100644
--- a/src/core/scope.c
+++ b/src/core/scope.c
@@ -240,7 +240,7 @@ static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
/* If we have a controller set let's ask the controller nicely
* to terminate the scope, instead of us going directly into
- * SIGTERM beserk mode */
+ * SIGTERM berserk mode */
if (state == SCOPE_STOP_SIGTERM)
skip_signal = bus_scope_send_request_stop(s) > 0;
@@ -248,7 +248,9 @@ static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
r = unit_kill_context(
UNIT(s),
&s->kill_context,
- state != SCOPE_STOP_SIGTERM ? KILL_KILL : KILL_TERMINATE,
+ state != SCOPE_STOP_SIGTERM ? KILL_KILL :
+ s->was_abandoned ? KILL_TERMINATE_AND_LOG :
+ KILL_TERMINATE,
-1, -1, false);
if (r < 0)
goto fail;
@@ -369,6 +371,7 @@ static int scope_serialize(Unit *u, FILE *f, FDSet *fds) {
assert(fds);
unit_serialize_item(u, f, "state", scope_state_to_string(s->state));
+ unit_serialize_item(u, f, "was-abandoned", yes_no(s->was_abandoned));
return 0;
}
@@ -389,6 +392,14 @@ static int scope_deserialize_item(Unit *u, const char *key, const char *value, F
else
s->deserialized_state = state;
+ } else if (streq(key, "was-abandoned")) {
+ int k;
+
+ k = parse_boolean(value);
+ if (k < 0)
+ log_unit_debug(u, "Failed to parse boolean value: %s", value);
+ else
+ s->was_abandoned = k;
} else
log_unit_debug(u, "Unknown serialization key: %s", key);
@@ -474,6 +485,7 @@ int scope_abandon(Scope *s) {
if (!IN_SET(s->state, SCOPE_RUNNING, SCOPE_ABANDONED))
return -ESTALE;
+ s->was_abandoned = true;
s->controller = mfree(s->controller);
/* The client is no longer watching the remaining processes,
diff --git a/src/core/scope.h b/src/core/scope.h
index 713b8b9f02..eaf8e8b447 100644
--- a/src/core/scope.h
+++ b/src/core/scope.h
@@ -45,6 +45,7 @@ struct Scope {
usec_t timeout_stop_usec;
char *controller;
+ bool was_abandoned;
sd_event_source *timer_event_source;
};
diff --git a/src/core/service.c b/src/core/service.c
index 13de671700..afb198507b 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1674,7 +1674,7 @@ static void service_kill_control_processes(Service *s) {
return;
p = strjoina(UNIT(s)->cgroup_path, "/control");
- cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
+ cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, CGROUP_SIGCONT|CGROUP_IGNORE_SELF|CGROUP_REMOVE, NULL, NULL, NULL);
}
static void service_enter_start(Service *s) {
diff --git a/src/core/unit.c b/src/core/unit.c
index fdf7ce3af3..4934a0e56f 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -3144,7 +3144,7 @@ int unit_kill_common(
if (!pid_set)
return -ENOMEM;
- q = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, signo, false, false, false, pid_set);
+ q = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, signo, 0, pid_set, NULL, NULL);
if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
r = q;
else
@@ -3512,6 +3512,43 @@ int unit_make_transient(Unit *u) {
return 0;
}
+static void log_kill(pid_t pid, int sig, void *userdata) {
+ _cleanup_free_ char *comm = NULL;
+
+ (void) get_process_comm(pid, &comm);
+
+ /* Don't log about processes marked with brackets, under the assumption that these are temporary processes
+ only, like for example systemd's own PAM stub process. */
+ if (comm && comm[0] == '(')
+ return;
+
+ log_unit_notice(userdata,
+ "Killing process " PID_FMT " (%s) with signal SIG%s.",
+ pid,
+ strna(comm),
+ signal_to_string(sig));
+}
+
+static int operation_to_signal(KillContext *c, KillOperation k) {
+ assert(c);
+
+ switch (k) {
+
+ case KILL_TERMINATE:
+ case KILL_TERMINATE_AND_LOG:
+ return c->kill_signal;
+
+ case KILL_KILL:
+ return SIGKILL;
+
+ case KILL_ABORT:
+ return SIGABRT;
+
+ default:
+ assert_not_reached("KillOperation unknown");
+ }
+}
+
int unit_kill_context(
Unit *u,
KillContext *c,
@@ -3520,58 +3557,63 @@ int unit_kill_context(
pid_t control_pid,
bool main_pid_alien) {
- bool wait_for_exit = false;
+ bool wait_for_exit = false, send_sighup;
+ cg_kill_log_func_t log_func;
int sig, r;
assert(u);
assert(c);
+ /* Kill the processes belonging to this unit, in preparation for shutting the unit down. Returns > 0 if we
+ * killed something worth waiting for, 0 otherwise. */
+
if (c->kill_mode == KILL_NONE)
return 0;
- switch (k) {
- case KILL_KILL:
- sig = SIGKILL;
- break;
- case KILL_ABORT:
- sig = SIGABRT;
- break;
- case KILL_TERMINATE:
- sig = c->kill_signal;
- break;
- default:
- assert_not_reached("KillOperation unknown");
- }
+ sig = operation_to_signal(c, k);
+
+ send_sighup =
+ c->send_sighup &&
+ IN_SET(k, KILL_TERMINATE, KILL_TERMINATE_AND_LOG) &&
+ sig != SIGHUP;
+
+ log_func =
+ k != KILL_TERMINATE ||
+ IN_SET(sig, SIGKILL, SIGABRT) ? log_kill : NULL;
if (main_pid > 0) {
- r = kill_and_sigcont(main_pid, sig);
+ if (log_func)
+ log_func(main_pid, sig, u);
+ r = kill_and_sigcont(main_pid, sig);
if (r < 0 && r != -ESRCH) {
_cleanup_free_ char *comm = NULL;
- get_process_comm(main_pid, &comm);
+ (void) get_process_comm(main_pid, &comm);
log_unit_warning_errno(u, r, "Failed to kill main process " PID_FMT " (%s), ignoring: %m", main_pid, strna(comm));
} else {
if (!main_pid_alien)
wait_for_exit = true;
- if (c->send_sighup && k == KILL_TERMINATE)
+ if (r != -ESRCH && send_sighup)
(void) kill(main_pid, SIGHUP);
}
}
if (control_pid > 0) {
- r = kill_and_sigcont(control_pid, sig);
+ if (log_func)
+ log_func(control_pid, sig, u);
+ r = kill_and_sigcont(control_pid, sig);
if (r < 0 && r != -ESRCH) {
_cleanup_free_ char *comm = NULL;
- get_process_comm(control_pid, &comm);
+ (void) get_process_comm(control_pid, &comm);
log_unit_warning_errno(u, r, "Failed to kill control process " PID_FMT " (%s), ignoring: %m", control_pid, strna(comm));
} else {
wait_for_exit = true;
- if (c->send_sighup && k == KILL_TERMINATE)
+ if (r != -ESRCH && send_sighup)
(void) kill(control_pid, SIGHUP);
}
}
@@ -3585,7 +3627,11 @@ int unit_kill_context(
if (!pid_set)
return -ENOMEM;
- r = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, sig, true, k != KILL_TERMINATE, false, pid_set);
+ r = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path,
+ sig,
+ CGROUP_SIGCONT|CGROUP_IGNORE_SELF,
+ pid_set,
+ log_func, u);
if (r < 0) {
if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
log_unit_warning_errno(u, r, "Failed to kill control group %s, ignoring: %m", u->cgroup_path);
@@ -3610,14 +3656,18 @@ int unit_kill_context(
(detect_container() == 0 && !unit_cgroup_delegate(u)))
wait_for_exit = true;
- if (c->send_sighup && k != KILL_KILL) {
+ if (send_sighup) {
set_free(pid_set);
pid_set = unit_pid_set(main_pid, control_pid);
if (!pid_set)
return -ENOMEM;
- cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, SIGHUP, false, true, false, pid_set);
+ cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path,
+ SIGHUP,
+ CGROUP_IGNORE_SELF,
+ pid_set,
+ NULL, NULL);
}
}
}
diff --git a/src/core/unit.h b/src/core/unit.h
index c41011ed9d..1eabfa51e2 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -36,6 +36,7 @@ typedef struct UnitStatusMessageFormats UnitStatusMessageFormats;
typedef enum KillOperation {
KILL_TERMINATE,
+ KILL_TERMINATE_AND_LOG,
KILL_KILL,
KILL_ABORT,
_KILL_OPERATION_MAX,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-19 15:23:17 +0000