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authorKay Sievers <kay.sievers@vrfy.org>2010-01-14 22:49:39 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-07 17:04:48 -0800
commit7934779a69f1184f29d786b89e77dd14519bd226 (patch)
tree5f642d352c7c19feccae1bb18f557e35526f8ae8 /drivers
parent4237e5fd3e07da268029cd4862cf551d9a74e33f (diff)
downloadlinux-7934779a69f1184f29d786b89e77dd14519bd226.tar.gz
Driver-Core: disable /sbin/hotplug by default
No recent mainstream system uses the /sbin/hotplug fork-bomb any more.
Disable it by default to reflect how it is used these days.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/Kconfig10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 8021e19fa1ea..fd52c48ee762 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -3,10 +3,18 @@ menu "Generic Driver Options"
 config UEVENT_HELPER_PATH
 	string "path to uevent helper"
 	depends on HOTPLUG
-	default "/sbin/hotplug"
+	default ""
 	help
 	  Path to uevent helper program forked by the kernel for
 	  every uevent.
+	  Before the switch to the netlink-based uevent source, this was
+	  used to hook hotplug scripts into kernel device events. It
+	  usually pointed to a shell script at /sbin/hotplug.
+	  This should not be used today, because usual systems create
+	  many events at bootup or device discovery in a very short time
+	  frame. One forked process per event can create so many processes
+	  that it creates a high system load, or on smaller systems
+	  it is known to create out-of-memory situations during bootup.
 
 config DEVTMPFS
 	bool "Maintain a devtmpfs filesystem to mount at /dev"