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| author | Richard Tollerton <rich.tollerton@ni.com> | 2014-12-08 16:44:33 -0600 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-12-19 18:08:01 +0000 |
| commit | 24a159e16962477b105eeb144515fd16ddb3cdd0 (patch) | |
| tree | 7ead5b24add9958d3da14df4927b33e230ff575c /meta-yocto-bsp/lib | |
| parent | a957ff1dc4d084f4b7868359a508241f4af480f4 (diff) | |
| download | poky-24a159e16962477b105eeb144515fd16ddb3cdd0.tar.gz | |
udev-cache: stop race between sysconf and cache generation
The validity of the udev cache is determined by the sysconf
file (/etc/udev/cache.data). Currently, there is a substantial delay
between sysconf generation in /etc/init.d/udev and cache generation in
/etc/init.d/udev-cache. If a hotplug event arrives in the middle of
this, then the sysconf will be out of date with respect to the cache.
The solution is two-pronged. First, we minimize the race window by
regenerating the sysconf immediately before the cache, in
/etc/init.d/udev-cache. This allows us to kill the race entirely by
stopping the udev event queue while the sysconf and cache are being
generated.
(From OE-Core rev: 107e7fa2b2cc2e06addb83518c03b3ab769fed6f)
Signed-off-by: Richard Tollerton <rich.tollerton@ni.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta-yocto-bsp/lib')
0 files changed, 0 insertions, 0 deletions