[OE-core] [PATCH] systemd: decreasing default RLIMIT_NOFILE on qemu bsp

[Hongxu Jia]

Since do_testimage for core-image-sato-sdk has memory limitation (256Mib)
which caused rpc.statd failed with out of memory.
[  531.306146] Out of memory: Kill process 193 (rpc.statd) score 200 or sacrifice child

The rpc.statd allocates memory according to RLIMIT_NOFILE,
so decrease it to 4k to keep sync with sysvinit

After applying the patch, the memory cost is the same with sysvinit
rpcuser    340  0.0  1.0   3212  2588 ?        Ss   13:20   0:00 /usr/sbin/rpc.statd -F
root       473  0.0  0.2   3464   496 ?        Ss   13:23   0:00 /usr/sbin/rpc.mountd

Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
---
 ...0001-decreasing-the-default-RLIMIT_NOFILE.patch | 35 ++++++++++++++++++++++
 meta/recipes-core/systemd/systemd_242.bb           |  4 +++
 2 files changed, 39 insertions(+)
 create mode 100644 meta/recipes-core/systemd/systemd/0001-decreasing-the-default-RLIMIT_NOFILE.patch

diff --git a/meta/recipes-core/systemd/systemd/0001-decreasing-the-default-RLIMIT_NOFILE.patch b/meta/recipes-core/systemd/systemd/0001-decreasing-the-default-RLIMIT_NOFILE.patch
new file mode 100644
index 0000000..fb8e2c9
--- /dev/null
+++ b/meta/recipes-core/systemd/systemd/0001-decreasing-the-default-RLIMIT_NOFILE.patch
@@ -0,0 +1,35 @@
+From 55c7196163e481c508fa708b9b8f5e7bf2d2f007 Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia at windriver.com>
+Date: Mon, 19 Aug 2019 07:16:47 -0400
+Subject: [PATCH] decreasing the default RLIMIT_NOFILE
+
+Since do_testimage for core-image-sato-sdk has memory limits (256Mib)
+which caused rpc.statd failed with out of memory.
+[  531.306146] Out of memory: Kill process 193 (rpc.statd) score 200 or sacrifice child
+
+The rpc.statd allocates memory according to RLIMIT_NOFILE,
+so decrease it to 4k which keep sync with sysvinit
+
+Upstream-Status: Inappropriate [oe specific]
+
+Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
+---
+ meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index 18a7cc5..e30894b 100644
+--- a/meson.build
++++ b/meson.build
+@@ -79,7 +79,7 @@ conf.set10('HAVE_SYSV_COMPAT', sysvinit_path != '' and sysvrcnd_path != '',
+ 
+ conf.set10('BUMP_PROC_SYS_FS_FILE_MAX', get_option('bump-proc-sys-fs-file-max'))
+ conf.set10('BUMP_PROC_SYS_FS_NR_OPEN',  get_option('bump-proc-sys-fs-nr-open'))
+-conf.set('HIGH_RLIMIT_NOFILE',          512*1024)
++conf.set('HIGH_RLIMIT_NOFILE',          4*1024)
+ 
+ # join_paths ignores the preceding arguments if an absolute component is
+ # encountered, so this should canonicalize various paths when they are
+-- 
+2.8.1
+
diff --git a/meta/recipes-core/systemd/systemd_242.bb b/meta/recipes-core/systemd/systemd_242.bb
index 1953fef..ab15ad2 100644
--- a/meta/recipes-core/systemd/systemd_242.bb
+++ b/meta/recipes-core/systemd/systemd_242.bb
@@ -58,6 +58,10 @@ SRC_URI_MUSL = "file://0001-Use-getenv-when-secure-versions-are-not-available.pa
                file://0001-do-not-disable-buffer-in-writing-files.patch \
                "
 
+SRC_URI_append_qemuall = " \
+               file://0001-decreasing-the-default-RLIMIT_NOFILE.patch \
+"
+
 PAM_PLUGINS = " \
     pam-plugin-unix \
     pam-plugin-loginuid \
-- 
2.8.1