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2974054b45
When mount command is executed in rootfs module of initrd, eudev creates a loop0 device node, applies rules and adds a inotify watch to it. Right after this step, we execute finish which first tries to kill any running udevd daemon before doing a switch_root. In some cases, it is possible that switch_root is executed before inotify_add_watch was actually processed which would lead to errors like: | inotify_add_watch(6, /dev/loop0, 10) failed: No such file or directory Make sure that we process all the events in queue before actually trying to kill udevd to prevent this race. Fixes [YOCTO #12861] (From OE-Core rev: a85c34d263fcf1542bbedcaf1634302466bb20cf) (From OE-Core rev: 196659ca05623996e2b36f7b1e52195a81fd3bdd) Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
48 lines
827 B
Bash
48 lines
827 B
Bash
#!/bin/sh
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# Copyright (C) 2011, 2012 O.S. Systems Software LTDA.
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# Licensed on MIT
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udev_shutdown_hook_handler() {
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status=$1
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module=$2
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if [ "$status" = "pre" ] && [ "$module" = "finish" ]; then
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udevadm settle
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killall `basename $_UDEV_DAEMON` 2>/dev/null
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fi
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}
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udev_daemon() {
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OPTIONS="/sbin/udev/udevd /sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd"
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for o in $OPTIONS; do
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if [ -x "$o" ]; then
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echo $o
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return 0
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fi
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done
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return 1
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}
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_UDEV_DAEMON=`udev_daemon`
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udev_enabled() {
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if [ -z "$_UDEV_DAEMON" ]; then
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msg "WARNING: Cannot find the udev daemon; daemon will not be started in initramfs."
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return 1
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fi
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return 0
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}
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udev_run() {
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add_module_pre_hook "udev_shutdown_hook_handler"
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mkdir -p /run
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mkdir -p /var/run
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$_UDEV_DAEMON --daemon
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udevadm trigger --action=add
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udevadm settle
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}
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