SVN commit failed

The prompt failed while submitting the code with SVN.

Svn:commit failed (details follow):
Svn:can ' t open file '/home/svn/project/db/txn-current-lock ': Permission denied

Before all the normal use of no problem, how suddenly did not do it. Depressed a bit. But fortunately, later with the command to check.

$ ps aux | grep svnserve

Suyh 4064 0.0 0.1 156532 888? Ss 16:39 0:00 svnserve-d-r/home/svn/
Suyh 4384 0.0 0.1 103252 840 pts/1 s+ 17:14 0:00 grep svnserve

Suddenly feel strange, originally with ordinary users to start SVN service. Cause no permissions.

SVN commit failed