couchdb stacktrace, timeout right after compaction

gistfile1.txt

[Fri, 14 Oct 2011 01:46:37 GMT] [error] [<0.4090.13>] Uncaught error in HTTP request: {exit,
                                                       {{timeout,
                                                         {gen_server,call,
                                                          [<0.21934.9>,
                                                           {open_ref_count,
                                                            <0.4090.13>}]}},
                                                        {gen_server,call,
                                                         [couch_server,
                                                          {open,<<"backup">>,
                                                           [{user_ctx,
                                                             {user_ctx,null,
                                                              [<<"_admin">>],
                                                              <<"{couch_httpd_auth, default_authentication_handler}">>}}]},
                                                          infinity]}}}
[Fri, 14 Oct 2011 01:46:37 GMT] [error] [<0.88.0>] ** Generic server couch_server terminating 
** Last message in was {open,<<"backup">>,
                           [{user_ctx,
                                {user_ctx,null,
                                    [<<"_admin">>],
                                    <<"{couch_httpd_auth, default_authentication_handler}">>}}]}
** When Server state == {server,"/mnt/couchdb_data/lib/couchdb",
                            {re_pattern,0,0,
                                <<69,82,67,80,124,0,0,0,16,0,0,0,1,0,0,0,0,0,
                                  0,0,0,0,0,0,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
                                  0,0,0,0,0,0,0,0,0,93,0,72,25,77,0,0,0,0,0,0,
                                  0,0,0,0,0,0,254,255,255,7,0,0,0,0,0,0,0,0,0,
                                  0,0,0,0,0,0,0,77,0,0,0,0,16,171,255,3,0,0,0,
                                  128,254,255,255,7,0,0,0,0,0,0,0,0,0,0,0,0,0,
                                  0,0,0,69,26,84,0,72,0>>},
                            100,1,"Mon, 10 Oct 2011 16:44:55 GMT"}
** Reason for termination == 
** {timeout,{gen_server,call,[<0.21934.9>,{open_ref_count,<0.4090.13>}]}}

[Fri, 14 Oct 2011 01:46:37 GMT] [error] [<0.88.0>] {error_report,<0.31.0>,
                    {<0.88.0>,crash_report,
                     [[{initial_call,{couch_server,init,['Argument__1']}},
                       {pid,<0.88.0>},
                       {registered_name,couch_server},
                       {error_info,
                        {exit,
                         {timeout,
                          {gen_server,call,
                           [<0.21934.9>,{open_ref_count,<0.4090.13>}]}},
                         [{gen_server,terminate,6},
                          {proc_lib,init_p_do_apply,3}]}},
                       {ancestors,
                        [couch_primary_services,couch_server_sup,<0.32.0>]},
                       {messages,
                        [{#Ref<0.0.213.241615>,
                          {ok,
                           {db,<0.21934.9>,<0.21935.9>,nil,
                            <<"1318510254295887">>,<0.4123.13>,<0.4121.13>,
                            <0.4125.13>,
                            {db_header,6,3220221,0,
                             {7064427267,{2942678,0,6623683075},175549017},
                             {7064350028,2942678,134353006},
                             nil,0,nil,nil,1000},
                            3220221,
                            {btree,<0.4121.13>,
                             {7064427267,{2942678,0,6623683075},175549017},
                             #Fun<couch_db_updater.9.77797827>,
                             #Fun<couch_db_updater.10.43642969>,
                             #Fun<couch_btree.5.118780316>,
                             #Fun<couch_db_updater.11.116015850>,snappy},
                            {btree,<0.4121.13>,
                             {7064350028,2942678,134353006},
                             #Fun<couch_db_updater.12.1961265>,
                             #Fun<couch_db_updater.13.79288283>,
                             #Fun<couch_btree.5.118780316>,
                             #Fun<couch_db_updater.14.100599269>,snappy},
                            {btree,<0.4121.13>,nil,
                             #Fun<couch_btree.3.98968755>,
                             #Fun<couch_btree.4.76386710>,
                             #Fun<couch_btree.5.118780316>,nil,snappy},
                            3220221,<<"backup">>,
                            "/mnt/couchdb_data/lib/couchdb/backup.couch",[],
                            [],nil,
                            {user_ctx,null,[],undefined},
                            nil,1000,
                            [before_header,after_header,on_file_open],
                            [create,
                             {user_ctx,
                              {user_ctx,null,
                               [<<"_admin">>],
                               <<"{couch_httpd_auth, default_authentication_handler}">>}}],
                            snappy}}}]},
                       {links,[<0.85.0>]},
                       {dictionary,[]},
                       {trap_exit,true},
                       {status,running},
                       {heap_size,1597},
                       {stack_size,24},
                       {reductions,34356449}],
                      []]}}
[Fri, 14 Oct 2011 01:46:37 GMT] [error] [<0.85.0>] {error_report,<0.31.0>,
                       {<0.85.0>,supervisor_report,
                        [{supervisor,{local,couch_primary_services}},
                         {errorContext,child_terminated},
                         {reason,
                             {timeout,
                                 {gen_server,call,
                                     [<0.21934.9>,
                                      {open_ref_count,<0.4090.13>}]}}},
                         {offender,
                             [{pid,<0.88.0>},
                              {name,couch_server},
                              {mfargs,{couch_server,sup_start_link,[]}},
                              {restart_type,permanent},
                              {shutdown,brutal_kill},
                              {child_type,worker}]}]}}