Balazs Jeszenszky created IMPALA-7288:
-----------------------------------------
Summary: Codegen crash in FinalizeModule()
Key: IMPALA-7288
URL: https://issues.apache.org/jira/browse/IMPALA-7288
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 2.12.0
Reporter: Balazs Jeszenszky
The following sequence crashes Impala 2.12 reliably:
{code}
CREATE TABLE test (c1 CHAR(6),c2 CHAR(6));
select 1 from test t1, test t2
where t1.c1 = FROM_TIMESTAMP(cast(t2.c2 as string), 'yyyyMMdd');
{code}
hs_err_pid has:
{code}
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000000003b36ce4, pid=28459, tid=0x00007f2c49685700
#
# JRE version: Java(TM) SE Runtime Environment (8.0_162-b12) (build
1.8.0_162-b12)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.162-b12 mixed mode linux-amd64
compressed oops)
# Problematic frame:
# C [impalad+0x3736ce4] llvm::Value::getContext() const+0x4
{code}
Backtrace is:
{code}
#0 0x00007f2cb217a5f7 in raise () from /lib64/libc.so.6
#1 0x00007f2cb217bce8 in abort () from /lib64/libc.so.6
#2 0x00007f2cb4de2f35 in os::abort(bool) () from
/usr/java/latest/jre/lib/amd64/server/libjvm.so
#3 0x00007f2cb4f86f33 in VMError::report_and_die() () from
/usr/java/latest/jre/lib/amd64/server/libjvm.so
#4 0x00007f2cb4de922f in JVM_handle_linux_signal () from
/usr/java/latest/jre/lib/amd64/server/libjvm.so
#5 0x00007f2cb4ddf253 in signalHandler(int, siginfo*, void*) () from
/usr/java/latest/jre/lib/amd64/server/libjvm.so
#6 <signal handler called>
#7 0x0000000003b36ce4 in llvm::Value::getContext() const ()
#8 0x0000000003b36cff in llvm::Value::getValueName() const ()
#9 0x0000000003b36de9 in llvm::Value::getName() const ()
#10 0x0000000001ba6bb2 in impala::LlvmCodeGen::FinalizeModule (this=0x9b53980)
at
/usr/src/debug/impala-2.12.0-cdh5.15.0/be/src/codegen/llvm-codegen.cc:1076
#11 0x00000000018f5c0f in impala::FragmentInstanceState::Open (this=0xac0b400)
at
/usr/src/debug/impala-2.12.0-cdh5.15.0/be/src/runtime/fragment-instance-state.cc:255
#12 0x00000000018f3699 in impala::FragmentInstanceState::Exec (this=0xac0b400)
at
/usr/src/debug/impala-2.12.0-cdh5.15.0/be/src/runtime/fragment-instance-state.cc:80
#13 0x00000000019028c3 in impala::QueryState::ExecFInstance (this=0x9c6ad00,
fis=0xac0b400)
at /usr/src/debug/impala-2.12.0-cdh5.15.0/be/src/runtime/query-state.cc:410
#14 0x000000000190113c in impala::QueryState::<lambda()>::operator()(void)
const (__closure=0x7f2c49684be8)
at /usr/src/debug/impala-2.12.0-cdh5.15.0/be/src/runtime/query-state.cc:350
#15 0x00000000019034dd in
boost::detail::function::void_function_obj_invoker0<impala::QueryState::StartFInstances()::<lambda()>,
void>::invoke(boost::detail::function::function_buffer &)
(function_obj_ptr=...)
at
/usr/src/debug/impala-2.12.0-cdh5.15.0/toolchain/boost-1.57.0-p3/include/boost/function/function_template.hpp:153
{code}
Crash is at
https://github.com/cloudera/Impala/blob/cdh5-2.12.0_5.15.0/be/src/codegen/llvm-codegen.cc#L1070-L1079.
The repro steps seem to be quite specific.
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