repro.sh

#!/bin/bash
rm -f repro.fdb f

ISQL=bin/isql
GFIX=bin/gfix

cat << EOF > create.sql
create database 'repro.fdb';
create table test(test varchar(255));
EOF

cat << EOF > connect.sql
connect 'repro.fdb' user 'sysdba' password 'masterkey';
exit;
EOF

cat << EOF > gdbinit
set \$_exitcode = -1
run
if \$_exitcode != -1
    quit
end
EOF

$ISQL -u sysdba -p masterkey -i create.sql
$GFIX -user sysdba -pass masterkey -h 0 repro.fdb

mkfifo f
cat f | $ISQL -u sysdba -p masterkey repro.fdb&
ISQL_PID=$!
exec 3>f
for i in `seq 1 1000`; do
cat << EOF > f
insert into test values('text');
EOF
done

kill -KILL $ISQL_PID

$GFIX -user sysdba -pass masterkey -h 1 repro.fdb

while true; do gdb -x gdbinit --args $ISQL -u sysdba -p masterkey -i connect.sql; done
#while true; do $ISQL -u sysdba -p masterkey -i connect.sql; done