InternalError: (3, "Error writing file '/tmp/MYwRZWhA' (Errcode: 122)")

How to Reproduce

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

''(please provide additional details here)''

Request parameters:

{'__FORM_TOKEN': u'16243a855d907203c0eb3ee0',
 u'field_component': u'ui.resizable',
 u'field_description': u"When using  '''without''' using , I would expect that it is impossible for the user to make the widget move.\\r\\n\\r\\nHowever, when using the  option, this is no longer the case. As my [http://jsfiddle.net/c7HhS/3/ demo jsfiddle] demonstrates, you can make the gadget move by dragging the west handle all the way to the right or the north handle down.\\r\\n\\r\\nNote that this does not happen for every grid size (in the example, 50 is broken but 80 is fine), and never happens for the east or south handles.\\r\\n\\r\\nMy production system uses jqUI 1.10.3 with jQuery 2.0.3, the jsFiddle uses the same jqUI version with jQuery 1.9.1 because that was the version used on the [http://jqueryui.com/resources/demos/resizable/snap-to-grid.html jqueryui.com resizable() demo page].",
 u'field_summary': u'Resizable can be moved when grid option is set',
 u'field_type': u'bug',
 u'field_version': u'1.10.3',
 'recaptcha_challenge_field': u'03AHJ_VuvxvUvwPMcLdlNpN8qeB5e7cM7XksSwKTQcJCvlOdQ1d-km4GqSxOGwj_bKA7o8Y-d7S0-8fhBVpcEg5YWI58VlhodUgLUTp79HB5DXvchhKwuh_x2DprZ3JZKI1yLyL7p0qPZbTgkNcZiKKIvh_ZIbbFzSOg',
 'recaptcha_response_field': u'5652323 4520',
 u'submit': u'Create ticket'}

User agent: resizable()

System Information

''System information not available''

Enabled Plugins

''Plugin information not available''

Python Traceback

Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/web/main.py", line 511, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/web/main.py", line 202, in dispatch
    chosen_handler)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/web/main.py", line 344, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "/usr/local/lib/python2.6/dist-packages/TracSpamFilter-0.4.1dev_r10170-py2.6.egg/tracspamfilter/captcha/api.py", line 143, in pre_process_request
    req.session.save()
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/web/session.py", line 155, in save
    @self.env.with_transaction()
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/db/api.py", line 77, in transaction_wrapper
    fn(ldb)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/web/session.py", line 182, in purge_session_attributes
    """, (mintime,))
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.1-py2.6.egg/trac/db/util.py", line 65, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/pymodules/python2.6/MySQLdb/cursors.py", line 166, in execute
    self.errorhandler(self, exc, value)
  File "/usr/lib/pymodules/python2.6/MySQLdb/connections.py", line 35, in defaulterrorhandler
    raise errorclass, errorvalue
InternalError: (3, "Error writing file '/tmp/MYwRZWhA' (Errcode: 122)")