The  system contains one SATA SDD drive 32 GB formatted as POS. The number of files in /tmp directory was increasing to 
few thousands and i have noticed extremely slow down accessing files, ls command sometimes returned error message "
incorrect argument". I have found out system log messages listed below.

Is the issue related to the big number of files in a single directory or rather to the failure of SDD itself?

Any comments is greatly appreciated.

J.  

Oct 01 10:31:01    2     4     0 io-blk: UnblockRegister() failed with 4 (13/0)
Oct 01 11:19:50    2     4     0 io-blk: UnblockRegister() already has unblock function assigned tid=11
Oct 01 11:19:50    2     4     0 io-blk: UnblockRegister() failed with 16 (11/0)
Oct 01 11:20:51    2     4     0 io-blk: UnblockRegister() failed with 4 (13/0)
Oct 01 12:27:04    2     4     0 io-blk: UnblockRegister() failed with 4 (6/0)
Oct 01 12:27:37    2     4     0 io-blk: UnblockRegister() failed with 4 (8/0)