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authorBill Pittman <bill.pittman@ni.com>2014-07-21 11:53:46 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2014-07-23 21:59:13 +0100
commit034790df8f4ca257c631de292dc003aee8e26231 (patch)
treec601ed267564de700dfa14d93a23962d4534ef6a /meta/recipes-core
parent67e1a5244dd86f89e06ad65d02686bb25c513380 (diff)
downloadpoky-034790df8f4ca257c631de292dc003aee8e26231.tar.gz
busybox: mdev: Use mdev.seq
/dev/mdev.seq exists to synchronize concurrently running instances of mdev and to ensure that they execute in the proper order. Without this synchronization, it is possible to have inconsistent mount points, to leak device nodes, or to have a node erroneously removed in rapid hotplug scenarios. Enable the use of mdev.seq by creating an empty /dev/mdev.seq at boot. (From OE-Core rev: 3b256653ae9ab2cf56b21cb82a8bd2a562397b27) Signed-off-by: Richard Tollerton <rich.tollerton@ni.com> Signed-off-by: Ben Shelton <ben.shelton@ni.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core')
-rwxr-xr-xmeta/recipes-core/busybox/files/mdev1
1 files changed, 1 insertions, 0 deletions
diff --git a/meta/recipes-core/busybox/files/mdev b/meta/recipes-core/busybox/files/mdev
index f7ed1f3d67..c4447ef160 100755
--- a/meta/recipes-core/busybox/files/mdev
+++ b/meta/recipes-core/busybox/files/mdev
@@ -4,5 +4,6 @@ mount -t tmpfs tmpfs /dev -o size=64k,mode=0755
4mkdir /dev/pts /dev/shm 4mkdir /dev/pts /dev/shm
5chmod 777 /dev/shm 5chmod 777 /dev/shm
6mount -t devpts devpts /dev/pts 6mount -t devpts devpts /dev/pts
7touch /dev/mdev.seq
7echo "/sbin/mdev" > /proc/sys/kernel/hotplug 8echo "/sbin/mdev" > /proc/sys/kernel/hotplug
8mdev -s 9mdev -s