Description of problem:
There are lot of dict NULL errors on the log files since we are refing the NULL dict, which is leading to log file size grow to GBs.


[2012-03-28 04:07:30.186408] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.199566] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.210135] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.222245] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.246198] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.258321] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.270615] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.283344] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.296604] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.323770] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.335594] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.358429] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.371056] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.384243] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/features/locks.so(pl_ftruncate+0xe1) [0x7f0a4b1da43a]))) 0-dict: dict is NULL
[2012-03-28 04:07:30.396881] W [dict.c:458:dict_ref] (-->/usr/local/lib/libglusterfs.so.0(+0x42037) [0x7f0a4fb12037] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/performance/io-threads.so(iot_ftruncate_wrapper+0x23b) [0x7f0a4afc3ca7] (-->/usr/local/lib/glusterfs/3.3.0qa32/xlator/fea


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info: