inotifyが特定のフォルダに対して機能しない

私が何をしても、inotifyが特定のフォルダの変更を検出できないという問題が発生しました。特に違いがない他のフォルダの変更を検出します。原因は何ですか？

inotifywait 3.14
Linux titan 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2+deb8u3 (2016-07-02) x86_64 GNU/Linux

inotifyはここで期待どおりに機能します。

ターミナルから：

ben@titan:~$ mkdir -p notifytest/example
ben@titan:~$ cd notifytest
ben@titan:~/notifytest$ inotifywait -rme attrib,modify,move,create,delete . --exclude '(log|[a-z]+.sqlite)'

他の端末から：

ben@titan:~$ cd notifytest
ben@titan:~/notifytest$ touch test.txt
ben@titan:~/notifytest$ touch example/test.txt
ben@titan:~/notifytest$ rm example/test.txt
ben@titan:~/notifytest$ rm test.txt

出力：

Setting up watches.  Beware: since -r was given, this may take a while!
Watches established.
./ CREATE test.txt
./ ATTRIB test.txt
./example/ CREATE test.txt
./example/ ATTRIB test.txt
./example/ DELETE test.txt
./ DELETE test.txt

ここでは、inotifyは期待どおりに機能しません。

blog無視される既存のフォルダがあります。 :(

という新しいフォルダを作成し、example正しく視聴されています。

ターミナルから：

ben@titan:~$ cd some-path
ben@titan:~/some-path$ ls
drwxr-xr-x 3 ben     ben      4096 Aug 16 14:23 blog
-rw-r--r-- 1 ben     ben     17408 Aug 15 13:58 blog.sqlite
-rw-r--r-- 1 ben     ben       325 Aug 15 13:01 config.py
-rw-r--r-- 1 www-run www-run 91800 Aug 16 14:23 log
drwxr-xr-x 2 ben     ben      4096 Aug 15 14:14 public_html
-rw-r--r-- 1 ben     ben      1999 Aug 15 16:21 schema.sql
-rwxr-xr-x 1 ben     ben      6019 Aug 16 14:01 start.py
ben@titan:~/some-path$ mkdir example
ben@titan:~/some-path$ ls
drwxr-xr-x 3 ben     ben      4096 Aug 16 14:23 blog
-rw-r--r-- 1 ben     ben     17408 Aug 15 13:58 blog.sqlite
-rw-r--r-- 1 ben     ben       325 Aug 15 13:01 config.py
drwxr-xr-x 2 ben     ben      4096 Aug 16 14:28 example
-rw-r--r-- 1 www-run www-run 91800 Aug 16 14:23 log
drwxr-xr-x 2 ben     ben      4096 Aug 15 14:14 public_html
-rw-r--r-- 1 ben     ben      1999 Aug 15 16:21 schema.sql
-rwxr-xr-x 1 ben     ben      6019 Aug 16 14:01 start.py
ben@titan:~/some-path$ file example
example: directory
ben@titan:~/some-path$ file blog
blog: directory
ben@titan:~/some-path$ inotifywait -rme attrib,modify,move,create,delete . --exclude '(log|[a-z]+.sqlite)'

他の端末から：

ben@titan:~$ cd some-path
ben@titan:~/some-path$ touch test.txt
ben@titan:~/some-path$ touch blog/test.txt
ben@titan:~/some-path$ touch example/test.txt
ben@titan:~/some-path$ rm test.txt
ben@titan:~/some-path$ rm blog/test.txt 
ben@titan:~/some-path$ rm example/test.txt 

出力：

inotifywait -rme attrib,modify,move,create,delete . --exclude '(log|[a-z]+.sqlite)'
Setting up watches.  Beware: since -r was given, this may take a while!
Watches established.
./ CREATE test.txt
./ ATTRIB test.txt
./example/ CREATE test.txt
./example/ ATTRIB test.txt
./ DELETE test.txt
./example/ DELETE test.txt

予想出力：

inotifywait -rme attrib,modify,move,create,delete . --exclude '(log|[a-z]+.sqlite)'
Setting up watches.  Beware: since -r was given, this may take a while!
Watches established.
./ CREATE test.txt
./ ATTRIB test.txt
./example/ CREATE test.txt
./example/ ATTRIB test.txt
./blog/ CREATE test.txt
./blog/ ATTRIB test.txt
./ DELETE test.txt
./example/ DELETE test.txt
./blog/ DELETE test.txt