From: Kay Sievers <kay.sievers@vrfy.org>
Date: Wed, 18 Jan 2012 04:06:18 +0000 (+0100)
Subject: udevd: kill hanging event processes after 30 seconds
X-Git-Tag: 178~9
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=e64fae5573e566ce4fd9b23c68ac8f3096603314;hp=e64fae5573e566ce4fd9b23c68ac8f3096603314

udevd: kill hanging event processes after 30 seconds

Some broken kernel drivers load firmware synchronously in the module init
path and block modprobe until the firmware request is fulfilled.

The modprobe-generated firmware request is a direct child device of the
device which caused modprobe to run. Child device event are blocked until
the parent device is handled. This dead-locks until the kernel firmware
loading timeout of 60 seconds is reached.

The hanging modprobe event should now time-out and allow the firmware
event to run before the 60 second kernel timeout.
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