XBSA function failed to attach shared memory

I am testing an xbsa library with onbar to backup IDS 10.00.FC6W3. Running the test on 64-bit PPC machine with AIX 5.2. The call sequence went thro' BSAQueryApiVersion, BSAInit, BSABeginTxn and BSACreateObject without any problems. However, BSASendData fails since I am unable to attach shared memory identifier obtained from onbar. Following is the log from my XBSA-library function BSASendData. (struct DataBlock32* obtained from OnBar=pstcData)- **************************************************** Inside BSASendData.. DataBlock32::NumBytes..65543 DataBlock32::Buflen..4026593280 DataBlock32::HeaderBytes..117440512 DataBlock32::BufPointer..27 DataBlock32::ShareId..7791616 DataBlock32::ShareOffset..0 Failed to attach shared memory Error No<22> EINVAL returning BSA_RC_ABORT_SYSTEM_ERROR ***************************************************** Code at Failed statement - char* szBuff = (char*)shmat(pstcData->shareId, (void*)0, SHM_RDONLY); Please help. Thanks in advance.

Hi, are you sure that the XBSA library you want to use really is supporting AIX 5.2 (and e.g. not just AIX 5.3)? Also, you can check whether IDS really has an SHM segment with the given SHM ID. E.g. use the command "onstat -g seg" to list the SHM segments of IDS ... TIA, Martin -- Martin Fuerderer IBM Informix Development Munich, Germany Information Management IBM Deutschland Research & Development GmbH Chairman of the Supervisory Board: Martin Jetter Board of Management: Erich Baier Corporate Seat: Boeblingen, Germany Reg.-Gericht: Amtsgericht Stuttgart, HRB 243294 ids-bounces@iiug.org wrote on 30.09.2008 08:51:33: > I am testing an xbsa library with onbar to backup IDS 10.00.FC6W3. > Running the > test on 64-bit PPC machine with AIX 5.2. The call sequence went thro' > BSAQueryApiVersion, BSAInit, BSABeginTxn and BSACreateObject without any > problems. However, BSASendData fails since I am unable to attach > shared memory > identifier obtained from onbar. > Following is the log from my XBSA-library function BSASendData. (struct > DataBlock32* obtained from OnBar=pstcData)- > **************************************************** > Inside BSASendData.. > DataBlock32::NumBytes..65543 > DataBlock32::Buflen..4026593280 > DataBlock32::HeaderBytes..117440512 > DataBlock32::BufPointer..27 > DataBlock32::ShareId..7791616 > DataBlock32::ShareOffset..0 > Failed to attach shared memory Error No<22> EINVAL > returning BSA_RC_ABORT_SYSTEM_ERROR > ***************************************************** > Code at Failed statement - > char* szBuff = (char*)shmat(pstcData->shareId, (void*)0, SHM_RDONLY); > > Please help. Thanks in advance. > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. >

Hi Martin, This is a new XBSA library that I developed (as per specs) and built on AIX 5.2. We've our own network storage manager and this XBSA library is supposed to facilitate backup and restore of XBSA supported clients. With IDS, we've configured Onbar (XBSA client) to use our XBSA library. Our storage manager remotely triggered Onbar, which in turn loaded our library - the loaded segment is different from IDS shared memory segments.. 900000000d96000 38c2b /usr/iTRx/bin/libxbsa.so/ The SHM identifier received from Onbar by XBSA function BSASendData doesn't match with any of the segments known to IDS.(onstat o/p given at the end). But I guess it might be a SHM segment created by Onbar to write backup data because it gives a different identifier each time. I could see from "onstat -u" that three user threads got started for "informix" user after calling Onbar. Thanks, Satheesh #onstat -g seg IBM Informix Dynamic Server Version 10.00.FC6WM1 -- On-Line -- Up 05:15:46 --637504 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 71303206 1381386241 700000010000000 441991168 437440 R 107902 6 27000875 1381386242 700000030000000 209715200 7136 V 15015 36185 1441832 1381386243 700000040000000 1097728 776 M 267 1 Total: - - 652804096 - - 123184 36192 (* segment locked in memory) Output of Onbar -m..(XBSA error is returned from our library since SHM attach failed) 2008-09-30 14:50:09 938006 1511590 /usr/informix_engine/bin/onbar_d -b -w -L 0 2008-09-30 14:50:09 938006 1511590 Working with itrx as generic storage manager. 2008-09-30 14:50:26 938006 1511590 Archive started on rootdbs, logsdbs, physdbs, acsm_order_dbs, apmsbs, assocdbs, aut odbs, bmc_smgt_dbs, cisamdbs, coffsdbs, customerdbs, dbsp1, dbsp2, esl_dbs, imagedbs, itemdbs, labeldbs, layawaydbs, men u_dbs, modsdbs, offeringdbs, open_sys_dbs, tempdbs, verint_dbs, verint_sbs, workload_schedule_dbs (Requested Level 0). 2008-09-30 14:50:33 938006 1511590 Begin level 0 backup rootdbs. 2008-09-30 14:50:33 938006 1511590 Successfully connected to Storage Manager. 2008-09-30 14:50:34 938006 1511590 XBSA Error: (BSASendData) A system error occurred. Aborting XBSA session. 2008-09-30 14:50:51 938006 1511590 /usr/informix_engine/bin/onbar_d complete, returning 3 (0x03)