[meta-virtualization] [PATCH] criu: Don't open /run/criu.kdat if doesn't exists

Hongzhi.Song hongzhi.song at windriver.com
Mon Nov 26 18:22:15 PST 2018


When CRIU is called for a first time and the /run/criu.kdat file does
not exists, the following warning is shown:
        Warn  (criu/kerndat.c:847): Can't load /run/criu.kdat

This patch is replacing this warning with a more appropriate debug
message.
        File /run/criu.kdat does not exist

Signed-off-by: Hongzhi.Song <hongzhi.song at windriver.com>
---
 recipes-containers/criu/criu_git.bb                |  1 +
 ...on-t-open-run-criu.kdat-if-doesn-t-exists.patch | 42 ++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 recipes-containers/criu/files/0001-kdat-Don-t-open-run-criu.kdat-if-doesn-t-exists.patch

diff --git a/recipes-containers/criu/criu_git.bb b/recipes-containers/criu/criu_git.bb
index 00de417..45195ea 100644
--- a/recipes-containers/criu/criu_git.bb
+++ b/recipes-containers/criu/criu_git.bb
@@ -21,6 +21,7 @@ SRC_URI = "git://github.com/xemul/criu.git;protocol=git \
            file://0002-criu-Skip-documentation-install.patch \
            file://0001-criu-Change-libraries-install-directory.patch \
            file://lib-Makefile-overwrite-install-lib-to-allow-multiarc.patch \
+           file://0001-kdat-Don-t-open-run-criu.kdat-if-doesn-t-exists.patch \
           "
 
 COMPATIBLE_HOST = "(x86_64|arm|aarch64).*-linux"
diff --git a/recipes-containers/criu/files/0001-kdat-Don-t-open-run-criu.kdat-if-doesn-t-exists.patch b/recipes-containers/criu/files/0001-kdat-Don-t-open-run-criu.kdat-if-doesn-t-exists.patch
new file mode 100644
index 0000000..805f799
--- /dev/null
+++ b/recipes-containers/criu/files/0001-kdat-Don-t-open-run-criu.kdat-if-doesn-t-exists.patch
@@ -0,0 +1,42 @@
+From b9760919eb3f805dd3d2af5692b49cba9c468595 Mon Sep 17 00:00:00 2001
+From: "Hongzhi.Song" <hongzhi.song at windriver.com>
+Date: Mon, 26 Nov 2018 02:39:59 -0500
+Subject: [PATCH] kdat: Don't open /run/criu.kdat if doesn't exists
+
+When CRIU is called for a first time and the /run/criu.kdat file does
+not exists, the following warning is shown:
+	Warn  (criu/kerndat.c:847): Can't load /run/criu.kdat
+
+This patch is replacing this warning with a more appropriate debug
+message.
+	File /run/criu.kdat does not exist
+
+Signed-off-by: Radostin Stoyanov <rstoyanov1 at gmail.com>
+Signed-off-by: Andrei Vagin <avagin at virtuozzo.com>
+
+Upstream-Status: Backport [https://github.com/checkpoint-restore/criu/commit/868de91a099c00f099d8a41557d660d173f72521]
+
+Signed-off-by: Hongzhi.Song <hongzhi.song at windriver.com>
+---
+ criu/kerndat.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/criu/kerndat.c b/criu/kerndat.c
+index 8cb5690..9fb475c 100644
+--- a/criu/kerndat.c
++++ b/criu/kerndat.c
+@@ -789,7 +789,10 @@ static int kerndat_try_load_cache(void)
+ 
+ 	fd = open(KERNDAT_CACHE_FILE, O_RDONLY);
+ 	if (fd < 0) {
+-		pr_warn("Can't load %s\n", KERNDAT_CACHE_FILE);
++		if(ENOENT == errno)
++			pr_debug("File %s does not exist\n", KERNDAT_CACHE_FILE);
++		else
++			pr_warn("Can't load %s\n", KERNDAT_CACHE_FILE);
+ 		return 1;
+ 	}
+ 
+-- 
+2.8.1
+
-- 
2.8.1



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