OperationalError: database is locked

[mark]

How to Reproduce

While doing a GET operation on /login, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{}

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:18.0) Gecko/20100101 Firefox/18.0

System Information

Trac	0.12.3
Trac	0.12.3
Babel	0.9.5
Docutils	0.7
Genshi	0.6
mod_wsgi	2.5 (WSGIProcessGroup trac_wsgi_07 WSGIApplicationGroup %{GLOBAL})
Pygments	1.4dev-20110115
pysqlite	2.4.1
Python	2.5.2 (r252:60911, Jan 24 2010, 18:02:01) [GCC 4.3.2]
Python	2.5.2 (r252:60911, Jan 24 2010, 18:02:01) [GCC 4.3.2]
pytz	2008c
pytz	2008c
RPC	1.1.2
setuptools	0.6c12
setuptools	0.6c12
SQLite	3.7.3
Subversion	1.7.8 (r1419691)
jQuery	1.4.4

Enabled Plugins

SecureSession	0.10dev-r1500
TracAnnouncer	0.12.1.dev
tracrpc.changeset	N/A
TracXMLRPC	1.1.2

Python Traceback

Traceback (most recent call last):
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/web/main.py", line 522, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/web/main.py", line 243, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/web/auth.py", line 115, in process_request
    self._do_login(req)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/web/auth.py", line 153, in _do_login
    @self.env.with_transaction()
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/db/api.py", line 77, in transaction_wrapper
    fn(ldb)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/web/auth.py", line 158, in store_session_cookie
    (int(time.time()) - 86400 * 10,))
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/db/util.py", line 65, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/db/sqlite_backend.py", line 78, in execute
    result = PyFormatCursor.execute(self, *args)
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/db/sqlite_backend.py", line 56, in execute
    args or [])
  File "/usr/local/lib/python2.5/site-packages/Trac-0.12.3-py2.5.egg/trac/db/sqlite_backend.py", line 48, in _rollback_on_error
    return function(self, *args, **kwargs)
OperationalError: database is locked

[Remy Blank]

Duplicate of #10077, one of our MostFrequentDuplicates.