OperationalError: database is locked

How to Reproduce

While doing a POST operation on /ticket/5673, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'__FORM_TOKEN': u'144976e071988a4e226a3e62',
 'action': u'leave',
 'cnum': u'3',
 'comment': u"I agree with momeata.\r\n\r\nMy main problem with this is the element of surprise; the main function works correctly while calling newlineCount doesn't.\r\n\r\nEven Haskell beginners are being told that in most cases ByteString or Text should be chosen over String. They are also encouraged to try things out in GHCi. This behavior will confound and confuse them. It certainly did that for me and I've although I'm not anywhere near a Haskell expert I have been using Haskell for many years.",
 'field_architecture': u'Unknown/Multiple',
 'field_blockedby': u'',
 'field_blocking': u'',
 'field_component': u'GHCi',
 'field_failure': u'Other',
 'field_keywords': u'',
 'field_os': u'Unknown/Multiple',
 'field_summary': u'GHCi ignores {-# LANGUAGE OverloadedStrings #-}',
 'field_testcase': u'',
 'field_type': u'bug',
 'field_version': u'7.0.4',
 'id': u'5673',
 'replyto': u'',
 'submit': u'Submit changes',
 'ts': u'2011-12-03 18:31:46+00:00'}

User Agent was: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20100101 Firefox/8.0 Iceweasel/8.0

System Information

**Trac**	`0.11.6`
**Python**	`2.5.2 (r252:60911, Jan 24 2010, 18:02:01) ` \[\[br\]\] `[GCC 4.3.2]`
**setuptools**	`0.6c8`
**SQLite**	`3.5.9`
**pysqlite**	`2.3.2`
**Genshi**	`0.5.1`
**mod_python**	`3.3.1`
**Pygments**	`0.10`
**GIT**	`1.5.6.5`
**FullBlog**	`0.1.1`
**RPC**	`1.0.6`
**CustomFieldAdmin**	`0.2.2`
**jQuery:**	`1.2.6`

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/trac/web/main.py", line 450, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.5/site-packages/trac/web/main.py", line 206, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.5/site-packages/trac/ticket/web_ui.py", line 182, in process_request
    return self._process_ticket_request(req)
  File "/usr/lib/python2.5/site-packages/trac/ticket/web_ui.py", line 508, in _process_ticket_request
    self._do_save(req, ticket, action)
  File "/usr/lib/python2.5/site-packages/trac/ticket/web_ui.py", line 1022, in _do_save
    cnum=internal_cnum):
  File "/usr/lib/python2.5/site-packages/trac/ticket/model.py", line 284, in save_changes
    (self.id, when_ts, author, cnum, comment))
  File "/usr/lib/python2.5/site-packages/trac/db/util.py", line 64, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 80, in execute
    PyFormatCursor.execute(self, *args)
  File "/usr/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 59, in execute
    args or [])
  File "/usr/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 51, in _rollback_on_error
    return function(self, *args, **kwargs)
OperationalError: database is locked

Trac metadata

Trac field	Value
Version	7.2.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	None
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture