Commented by: @romansimakov

Probably bugs.core_0899 also crashes server. I recommend you to run all fbtest under debug build.

0 __GI_raise raise.c 55 0x7ffff6682267
1 __GI_abort abort.c 89 0x7ffff6683eca
2 fb_assert_impl gdsassert.h 48 0x7ffff43a298d
3 Jrd::jrd_tra::rollbackToSavepoint tra.cpp 3570 0x7ffff4460949
4 EXE_looper exe.cpp 1393 0x7ffff440289a
5 looper_seh exe.cpp 1426 0x7ffff4402b19
6 execute_looper exe.cpp 1042 0x7ffff44015b7
7 EXE_receive exe.cpp 645 0x7ffff440019d
8 Jrd::ProcedureScan::getRecord ProcedureScan.cpp 186 0x7ffff47b5f4a
9 Jrd::Cursor::fetchNext Cursor.cpp 160 0x7ffff47a7448
10 Jrd::ForNode::execute StmtNodes.cpp 4715 0x7ffff4658455
11 EXE_looper exe.cpp 1311 0x7ffff4402688
12 looper_seh exe.cpp 1426 0x7ffff4402b19
13 execute_looper exe.cpp 1042 0x7ffff44015b7
14 EXE_receive exe.cpp 645 0x7ffff440019d
15 JRD_receive jrd.cpp 7604 0x7ffff44ce911
16 Jrd::DsqlDmlRequest::fetch dsql.cpp 280 0x7ffff46961a9
17 Jrd::DsqlCursor::fetchNext DsqlCursor.cpp 108 0x7ffff46ac971
18 Jrd::JResultSet::fetchNext jrd.cpp 4650 0x7ffff44c4d83
19 Firebird::IResultSetBaseImpl<Jrd::JResultSet, Firebird::CheckStatusWrapper, Firebird::IReferenceCountedImpl<Jrd::JResultSet, Firebird::CheckStatusWrapper, Firebird::Inherit<Firebird::IVersionedImpl<Jrd::JResultSet, Firebird::CheckStatusWrapper, Firebird::InheritFirebird::IResultSet\>>>>::cloopfetchNextDispatcher IdlFbInterfaces.h 7777 0x7ffff44e74cf
... <More>

Commented by: @aafemt

You should create separate tickets for separate problems.

Commented by: @aafemt

Reported cases are fixed.