From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758166Ab0CBX4Z (ORCPT ); Tue, 2 Mar 2010 18:56:25 -0500 Received: from kroah.org ([198.145.64.141]:38541 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754207Ab0CBX3W (ORCPT ); Tue, 2 Mar 2010 18:29:22 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Kay Sievers , Greg Kroah-Hartman Subject: [PATCH 20/62] Driver-Core: disable /sbin/hotplug by default Date: Tue, 2 Mar 2010 15:28:19 -0800 Message-Id: <1267572541-410-20-git-send-email-gregkh@suse.de> X-Mailer: git-send-email 1.7.0.1 In-Reply-To: <20100302230933.GA32287@kroah.com> References: <20100302230933.GA32287@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kay Sievers 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 Signed-off-by: Greg Kroah-Hartman --- drivers/base/Kconfig | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 8497ce9..338f0bf 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" -- 1.7.0.1