examples/ParallelJIT crashes on FreeBSD`

[llvmbot]

Bugzilla Link	25224
Version	trunk
OS	Windows NT
Reporter	LLVM Bugzilla Contributor
CC	@lhames

Extended Description

So, I'm not entirely sure if this is a bug in FreeBSD, a bug in ExecutionEngine, a bug in jemalloc, or a bug in the test. But it's fairly easily to reproduce and probably it's worth investigating. I'll put this here so we won't forget.

% uname -a
FreeBSD rabbit1.netperf.freebsd.org 11.0-CURRENT FreeBSD 11.0-CURRENT #​2 551300d(master)-dirty: Wed Jan 21 01:20:50 EST 2015 root@zoo.freebsd.org:/zoo/davide/socontention-obj/zoo/davide/freebsd-head/sys/GENERIC amd64

% ./ParallelJIT
Unblocking threads from block()
: /zoo/davide/freebsd-davide/lib/libc/../../contrib/jemalloc/include/jemalloc/internal/arena.h:990: Failed assertion: "arena_mapbits_allocated_get(chunk, pageind) != 0"
Bus error (core dumped)

(gdb) bt
#​0 0x0000000802db090a in thr_kill () from /lib/libc.so.7
#​1 0x0000000802e739b9 in abort () from /lib/libc.so.7
#​2 0x0000000802de4191 in ?? () from /lib/libc.so.7
#​3 0x0000000802dedd62 in ?? () from /lib/libc.so.7
#​4 0x0000000802dede60 in free () from /lib/libc.so.7
#​5 0x00000000007248b9 in llvm::AllocaHolder::~AllocaHolder (this=0x80400f000) at ../lib/ExecutionEngine/Interpreter/Interpreter.h:53
#​6 0x0000000000724735 in llvm::ExecutionContext::ExecutionContext (this=0x80400efb0) at ../lib/ExecutionEngine/Interpreter/Interpreter.h:64
#​7 0x000000000074442e in destroy (this=, __p=, this=, __p=) at /usr/include/c++/v1/memory:1696
#​8 __destroyllvm::ExecutionContext (__a=..., __p=, __a=..., __p=) at /usr/include/c++/v1/memory:1580
#​9 __alloc (this=0x7fffdfbfbaa0, __a=..., __p=0x80400efb0) at /usr/include/c++/v1/memory:1483
#​10 __destruct_at_end (this=0x7fffdfbfbaa0, __new_last=0x0) at /usr/include/c++/v1/__split_buffer:310
#​11 __destruct_at_end (this=0x7fffdfbfbaa0, __new_last=0x0) at /usr/include/c++/v1/__split_buffer:136
#​12 clear (this=0x7fffdfbfbaa0) at /usr/include/c++/v1/__split_buffer:83
#​13 std::__1::__split_buffer<llvm::ExecutionContext, std::__1::allocatorllvm::ExecutionContext&>::__split_buffer (this=0x7fffdfbfbaa0)
at /usr/include/c++/v1/__split_buffer:355
#​14 0x0000000000743d95 in std::__1::vector<llvm::ExecutionContext, std::__1::allocatorllvm::ExecutionContext >::__emplace_back_slow_path<>() (this=0x80389cb68)
at /usr/include/c++/v1/vector:1577
#​15 0x00000000007378db in emplace_back<> (this=0x80389cb68) at /usr/include/c++/v1/vector:1593
#​16 llvm::Interpreter::callFunction (this=0x80389c900, F=0x80387d198, ArgVals=...) at ../lib/ExecutionEngine/Interpreter/Execution.cpp:2081
#​17 0x0000000000724314 in llvm::Interpreter::runFunction (this=0x80389c900, F=0x80387d198, ArgValues=...) at ../lib/ExecutionEngine/Interpreter/Interpreter.cpp:93
#​18 0x0000000000406032 in callFunc (param=0x7fffffffe668) at ../examples/ParallelJIT/ParallelJIT.cpp:237
#​19 0x0000000801db44f5 in ?? () from /lib/libthr.so.3
#​20 0x0000000000000000 in ?? ()
Backtrace stopped: Cannot access memory at address 0x7fffdfbfc000