[oe-commits] [openembedded-core] 03/62: initramfs-live-boot: Make sure we kill udev before switching root when live booting

[git at git.openembedded.org]

rpurdie pushed a commit to branch master
in repository openembedded-core.

commit e88d9e56952414e6214804f9b450c7106d04318d
Author: Alejandro Hernandez <alejandro.hernandez at linux.intel.com>
AuthorDate: Tue Jul 26 22:10:02 2016 +0000

    initramfs-live-boot: Make sure we kill udev before switching root when live booting
    
    When live booting, we need to make sure the running udev processes are killed
    to avoid unexepected behavior, we do this just before switching root,
    once we do, a new udev process will be spawned from init and will take care
    of whatever work was still missing
    
    [YOCTO #9520]
    
    Signed-off-by: Alejandro Hernandez <alejandro.hernandez at linux.intel.com>
    Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/recipes-core/initrdscripts/files/init-live.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-core/initrdscripts/files/init-live.sh b/meta/recipes-core/initrdscripts/files/init-live.sh
index 09fb479..441b41c 100644
--- a/meta/recipes-core/initrdscripts/files/init-live.sh
+++ b/meta/recipes-core/initrdscripts/files/init-live.sh
@@ -80,7 +80,9 @@ read_args() {
 boot_live_root() {
     # Watches the udev event queue, and exits if all current events are handled
     udevadm settle --timeout=3 --quiet
-    killall "${_UDEV_DAEMON##*/}" 2>/dev/null
+    # Kills the current udev running processes, which survived after
+    # device node creation events were handled, to avoid unexpected behavior
+    killall -9 "${_UDEV_DAEMON##*/}" 2>/dev/null
 
     # Allow for identification of the real root even after boot
     mkdir -p  ${ROOT_MOUNT}/media/realroot

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