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Posted to issues@impala.apache.org by "Balazs Jeszenszky (JIRA)" <ji...@apache.org> on 2019/02/15 17:25:00 UTC
[jira] [Created] (IMPALA-8206) Codegen crash on analytic functions
in specific environments
Balazs Jeszenszky created IMPALA-8206:
-----------------------------------------
Summary: Codegen crash on analytic functions in specific environments
Key: IMPALA-8206
URL: https://issues.apache.org/jira/browse/IMPALA-8206
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 2.9.0, Impala 2.8.0, Impala 2.7.0
Reporter: Balazs Jeszenszky
The following sequence crashes in certain Impala versions on certain environments:
{code}
create table test (c1 int, c2 decimal(2,2));
insert into test values (1,0.0);
SELECT ROW_NUMBER() OVER (PARTITION BY a ORDER BY c1) b
FROM (SELECT c1, (case when c2 = 1 then 1 else 0 end) as a FROM test) t;
{code}
Any analytic function will do.
FATAL log:
{code}
F0212 06:58:45.937505 3119 llvm-codegen.cc:106] LLVM hit fatal error: Cannot select: 0x8e23130: i32 = X86ISD::CMP 0x61ff390, 0x61ffd10
0x61ff390: i1,ch = CopyFromReg 0x5c21830, Register:i1 %vreg72
0x8e23980: i1 = Register %vreg72
0x61ffd10: i1 = or 0x8e234c0, 0x87e0be0
0x8e234c0: i1,ch = CopyFromReg 0x5c21830, Register:i1 %vreg133
0x8e23ab0: i1 = Register %vreg133
0x87e0be0: i1,ch = CopyFromReg 0x5c21830, Register:i1 %vreg134
0x87b0720: i1 = Register %vreg134
In function: Compare
{code}
Minidump:
{code}
0 libc-2.12.so + 0x325e5
1 libc-2.12.so + 0x33dc5
2 libc-2.12.so + 0x6b58
3 impalad!llvm::MCJIT::emitObject(llvm::Module*) + 0x119
4 0x7f98ab6a74c0
5 impalad!llvm::SelectionDAGISel::DoInstructionSelection() + 0x254
6 impalad!llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 0x1d2
7 impalad!llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 0x36a
8 impalad!llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 0x48f
9 impalad!(anonymous namespace)::X86DAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 0x14
10 impalad!llvm::FPPassManager::runOnFunction(llvm::Function&) + 0x27a
11 impalad!llvm::legacy::PassManagerImpl::run(llvm::Module&) + 0x263
12 impalad!llvm::MCJIT::emitObject(llvm::Module*) + 0x119
13 impalad!llvm::MCJIT::generateCodeForModule(llvm::Module*) + 0x301
14 impalad!llvm::MCJIT::finalizeObject() + 0x110
15 impalad!impala::LlvmCodeGen::FinalizeModule() [llvm-codegen.cc : 937 + 0x2]
16 impalad!impala::PlanFragmentExecutor::OptimizeLlvmModule() [plan-fragment-executor.cc : 300 + 0xd]
17 impalad!impala::PlanFragmentExecutor::Open() [plan-fragment-executor.cc : 342 + 0x8]
18 impalad!impala::FragmentMgr::FragmentExecState::Exec() [fragment-exec-state.cc : 58 + 0xb]
19 impalad!impala::FragmentMgr::FragmentThread(impala::TUniqueId) [fragment-mgr.cc : 90 + 0xa]
{code}
Didn't test versions earlier than 2.7.
We've used RHEL6.7. For the two environments where we managed to repro, lscpu gives:
{code}
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 6
On-line CPU(s) list: 0-5
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 6
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 61
Stepping: 2
CPU MHz: 2197.454
BogoMIPS: 4394.90
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0-5
{code}
and
{code}
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 40
On-line CPU(s) list: 0-39
Thread(s) per core: 2
Core(s) per socket: 10
Socket(s): 2
NUMA node(s): 2
Vendor ID: GenuineIntel
CPU family: 6
Model: 85
Model name: Intel(R) Xeon(R) Gold 5115 CPU @ 2.40GHz
Stepping: 4
CPU MHz: 2394.367
BogoMIPS: 4786.29
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 1024K
L3 cache: 14080K
NUMA node0 CPU(s): 0-9,20-29
NUMA node1 CPU(s): 10-19,30-39
{code}
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