logind,machined: bump TasksMax=

Issue #2388 suggests the current TasksMax= setting for user processes is to low. Bump it to 12K. Also, bump the
container TasksMax= from 8K to 16K, so that it remains higher than the one for user processes.

(Compare: the kernel default limit for processes system-wide is 32K).

Fixes #2388

diff --git a/src/login/logind.c b/src/login/logind.c
index 79ea5dd..9723e2f 100644 (file)
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -70,7 +70,7 @@ static Manager *manager_new(void) {
         m->idle_action_not_before_usec = now(CLOCK_MONOTONIC);
 
         m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */
-        m->user_tasks_max = UINT64_C(4096);
+        m->user_tasks_max = UINT64_C(12288);
 
         m->devices = hashmap_new(&string_hash_ops);
         m->seats = hashmap_new(&string_hash_ops);

diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index e448dd2..28134f6 100644 (file)
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -1325,7 +1325,7 @@ int manager_start_scope(
         if (r < 0)
                 return r;
 
-        r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", 8192);
+        r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", UINT64_C(16384));
         if (r < 0)
                 return bus_log_create_error(r);