有一套DB2 v9.5 for AIX的dpf环境，数据库日志满，DBA 强制关闭后数据库restart 卡在backward 过程上，跟踪了stack，信息如下，diag中没有错误日志，请大拿看看怎么回事？
-------Frame------ ------Function + Offset------
0x090000000506DFB0 sqloWaitEDUWaitPost + 0x2E4
0x0900000004F4859C sqlpgPostLoggrWithoutLatching__FP9SQLP_DBCBi + 0xDC
0x0900000005DA9974 sqlpgPostLoggr__FP9SQLP_DBCBi@glueA15 + 0x114
0x0900000004EF084C sqlpgResSpace__FP8sqeAgentUlT2 + 0x2A4
0x09000000072684E4 sqlprbck__FP8sqeAgent + 0x111C
0x09000000066ED048 sqlprecm__FP8sqeAgentP9SQLP_LSN8T2UiUl + 0x12DC
0x09000000066EB27C sqlpresr__FP8sqeAgentPiP5sqlca + 0xC8C
0x09000000066E9B08 RecoverDatabase__16sqeLocalDatabaseFP8sqeAgentPiP5sqlca + 0x74
0x09000000066E8140 RestartDatabase__16sqeLocalDatabaseFP14sqeApplicationP8sqeAgentP8SQLE_BWAP22SQLESRSU_STATUS_VECTORP5sqlca + 0x43C
0x0900000006407044 InitEngineComponents__14sqeApplicationFcP8sqeAgentP8SQLE_BWAP5sqlcaP22SQLESRSU_STATUS_VECTORT1 + 0x808
0x09000000051F9ACC AppStartUsing__14sqeApplicationFP8SQLE_BWAP8sqeAgentcT3P5sqlcaPc + 0x654
0x09000000051FAF34 AppLocalStart__14sqeApplicationFP14db2UCinterface + 0x3A8
0x090000000513ED3C sqlelostWrp__FP14db2UCinterface + 0x34
0x090000000513EDB0 sqleUCengnInit__FP14db2UCinterfaceUs + 0x8
0x09000000051F564C sqleUCagentConnect + 0x284
0x090000000521E5F4 sqljsConnectAttach__FP13sqljsDrdaAsCbP14db2UCinterface + 0xE8
0x090000000521EB7C sqljs_ddm_accsec__FP14db2UCinterfaceP13sqljDDMObject + 0x314
0x090000000521E744 sqljsParseConnect__FP13sqljsDrdaAsCbP13sqljDDMObjectP14db2UCinterface + 0x64
0x09000000051171E0 sqljsParse__FP13sqljsDrdaAsCbP14db2UCinterface + 0x54
0x0900000005115AF0 @63@sqljsSqlam__FP14db2UCinterfaceP8sqeAgentb + 0x26C
0x0900000005219BD4 @63@sqljsDriveRequests__FP8sqeAgentP14db2UCconHandle + 0x98
0x0900000005219A38 @63@sqljsDrdaAsInnerDriver__FP18SQLCC_INITSTRUCT_Tb + 0xE0
0x09000000052197C0 sqljsDrdaAsDriver__FP18SQLCC_INITSTRUCT_T + 0xD8
0x0900000005222668 RunEDU__8sqeAgentFv + 0x11C
0x090000000520EA08 EDUDriver__9sqzEDUObjFv + 0x78
0x0900000004FC1B18 sqloEDUEntry + 0x57C
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