Adding some notes: Examples stat3.e and stat5.e from /opt/firebird/examples/stat/ don't work, while stat2.e works. I'm getting the same -901 "request synchronization error".
Steps to reproduce: Extract somewhere FirebirdCS-2.5.6.27020-0.i686.tar.gz "su" to be root. Run install.sh, creates backup, ask for password. Replace /opt/firebird/security2.fdb with symlink to reallife security2.fdb. Get /etc/init.d/firebird from somewhere. service firebird start cd /opt/firebird/examples/stat cp ../include/example.h . /opt/firebird/bin/gpre -d employee.fdb stat2.e export ISC_USER=sysdba export ISC_PASSWORD=... export ISC_DATABASE=employee.fdb cc -lfbclient stat2.c -o stat2 ./stat2 (Same for stat3.e and stat5.e) Like I said, in FB 2.5.6 stat3 and stat5 throw error. If I do the same with FB 2.5.5 then these examples work. ---------- Původní zpráva ---------- Od: ehmmm.fireb...@seznam.cz [firebird-support] <firebird-support@ yahoogroups.com> Komu: firebird-support@yahoogroups.com Datum: 26. 7. 2016 20:46:58 Předmět: [firebird-support] from FB 2.5.2 to 2.5.6 and C application " Hi, we have server with Debian 6.0 squeeze and there we have Firebird 2.5.2 (superclassic) which sometimes hangs and I don't know why. So my idea was to install there FB 2.5.6. I downloaded FB 2.5.6 superclassic i686 (debian is amd64 but previous firebird seems to be i686 so I decided to continue using i686) tar.gz, extracted it and executed install.sh. I think I was quite successful. I didn't make backups of *.fdb files, I only copied older security2.fdb into /opt/firebird and copied some init script from /opet/firebird/misc into /etc/init.d My PHP webapges work well, my Python apps work well, FlameRobin works well. The only problem I have with some old C programs running on the same server, precompiled via GPRE utility. These C apps fail for example on then line (just example) EXEC SQL FETCH cur _al...: int i, id, status; EXEC SQL CONNECT DB USER '...' PASSWORD '...'; EXEC SQL SET TRANSACTION READ WRITE WAIT ISOLATION LEVEL READ COMMITTED; EXEC SQL DECLARE cur_al CURSOR FOR SELECT id_blabla, status FROM blabla; EXEC SQL OPEN cur_al; while(SQLCODE == 0) { EXEC SQL FETCH cur_al INTO :id, :status; if (SQLCODE == 0) { ... } } EXEC SQL CLOSE cur_al; ... It throws error -901 and messages "Unsuccessful execution caused by system error that does not preclude successful execution of subsequent statements" and "request synchronization error". I'm not author of these C apps and I'm not very skilled in C on linux, I only found some Makefile so I tried run "make". But it didn't help. What should I try? Should I look somewhere for some libraries? The most interesting for me is that when I download and install FB 2.5.5 or 2.5.4 (I must admit that upgrading/downgrading firebird inside 2.5.x is quite easy) then these C apps seems to work correctly. (?) Is there any explanation for this? = "=