here's the extra debug output:
2011-03-07 11:53:04.747232 [DEBUG] switch_core_sqldb.c:1685 Reuse Unused Cached DB handle db="core";user="";pass="" [CORE_DB]
2011-03-07 11:53:19.744948 [DEBUG] switch_core_sqldb.c:1685 Reuse Unused Cached DB handle db="core";user="";pass="" [CORE_DB]
2011-03-07 11:53:22.161581 [ERR] switch_core_sqldb.c:432 SQL ERR [database is locked]
DELETE FROM members WHERE system = 'single_box' AND uuid = '' AND (abandoned_epoch = '1299525498' OR joined_epoch = '1299525427')
2011-03-07 11:53:22.261564 [DEBUG] mod_callcenter.c:511 Reuse Unused Cached DB handle db="callcenter";user="";pass="" [CORE_DB]
2011-03-07 11:53:22.261564 [DEBUG] mod_callcenter.c:511 Reuse Unused Cached DB handle db="callcenter";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:23.546367 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.546215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_external";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:24.550215 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal";user="";pass="" [CORE_DB]
2011-03-07 11:53:34.742661 [DEBUG] switch_core_sqldb.c:1685 Reuse Unused Cached DB handle db="core";user="";pass="" [CORE_DB]
2011-03-07 11:53:49.740377 [DEBUG] switch_core_sqldb.c:198 Dropping idle DB connection db="voicemail_telifi";user="";pass=""
2011-03-07 11:53:49.740377 [DEBUG] switch_core_sqldb.c:1685 Reuse Unused Cached DB handle db="core";user="";pass="" [CORE_DB]
2011-03-07 11:53:52.063018 [ERR] switch_core_sqldb.c:432 SQL ERR [database is locked]
DELETE FROM members WHERE system = 'single_box' AND uuid = '' AND (abandoned_epoch = '1299525498' OR joined_epoch = '1299525427')
2011-03-07 11:53:52.063018 [DEBUG] mod_callcenter.c:511 Reuse Unused Cached DB handle db="callcenter";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]
2011-03-07 11:53:53.601788 [DEBUG] sofia_glue.c:5894 Reuse Unused Cached DB handle db="sofia_reg_internal-ipv6";user="";pass="" [CORE_DB]