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-rw-r--r--package/ppp/patches/101-debian_close_dev_ppp.patch12
1 files changed, 12 insertions, 0 deletions
diff --git a/package/ppp/patches/101-debian_close_dev_ppp.patch b/package/ppp/patches/101-debian_close_dev_ppp.patch
index 2a30f45bdd..232b10b521 100644
--- a/package/ppp/patches/101-debian_close_dev_ppp.patch
+++ b/package/ppp/patches/101-debian_close_dev_ppp.patch
@@ -1,3 +1,15 @@
+pppd: Close already open ppp descriptors
+
+When using the kernel PPPoE driver in conjunction with the "persist" option,
+the already open descriptor to /dev/ppp is not closed when the link is
+reestablished. This eventually leads to high CPU load because the stray
+descriptors are always reported as ready by select().
+
+This patch closes the descriptor if it is already open when establishing a
+new connection. It originated from the Debian project.
+
+Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
+
--- a/pppd/sys-linux.c
+++ b/pppd/sys-linux.c
@@ -453,6 +453,13 @@ int generic_establish_ppp (int fd)