compute-runtime: `clBuildProgram` segfaults on Intel UHD Graphics 630

Yes we use RTLD_DEEPBIND, because Neo loads IGC using dlopen, and IGC can be linked statically with llvm libraries. Closing issue, as it was fixed on libZividCore side.

It was added to fix issue #122 If you see problems with this flag you can set -DSANITIZER_BUILD in CMAKE_CXX_FLAGS.

I can confirm that the LD_PRELOAD workaround fixes the issue.

With below patch

diff --git a/runtime/built_ins/built_ins.cpp b/runtime/built_ins/built_ins.cpp
index b04ef2db..840a2b0d 100644
--- a/runtime/built_ins/built_ins.cpp
+++ b/runtime/built_ins/built_ins.cpp
@@ -91,7 +91,9 @@ const SipKernel &BuiltIns::getSipKernel(SipKernelType type, Device &device) {
     UNRECOVERABLE_IF(kernelId >= static_cast<uint32_t>(SipKernelType::COUNT));
     auto &sipBuiltIn = this->sipKernels[kernelId];
 
-    auto initializer = [&] {
+     if(sipBuiltIn.first) return *sipBuiltIn.first;
+
+//    auto initializer = [&] {
         cl_int retVal = CL_SUCCESS;
 
         std::vector<char> sipBinary;
@@ -116,9 +118,9 @@ const SipKernel &BuiltIns::getSipKernel(SipKernelType type, Device &device) {
         DEBUG_BREAK_IF(retVal != CL_SUCCESS);
 
         sipBuiltIn.first.reset(new SipKernel(type, program));
-    };
-    std::call_once(sipBuiltIn.second, initializer);
-    UNRECOVERABLE_IF(sipBuiltIn.first == nullptr);
+//    };
+//    std::call_once(sipBuiltIn.second, initializer);
+//    UNRECOVERABLE_IF(sipBuiltIn.first == nullptr);
     return *sipBuiltIn.first;
 }

I was able to reproduce similar segfault in Ubuntu 18.04 docker container

Thread 1 "SampleCaptureFr" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x00007ffff3b93827 in __pthread_once_slow (once_control=0x7fffe3f97600, init_routine=0x7ffff4c69830 <__once_proxy>) at pthread_once.c:116
#2  0x00007fffe0cc37a6 in llvm::ManagedStaticBase::RegisterManagedStatic(void* (*)(), void (*)(void*)) const () from /usr/lib/x86_64-linux-gnu/libLLVM-8.so.1
#3  0x00007fffe0c7d18d in llvm::cl::OptionCategory::registerCategory() () from /usr/lib/x86_64-linux-gnu/libLLVM-8.so.1
#4  0x00007fffe0b810c2 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-8.so.1
#5  0x00007ffff7de5733 in call_init (env=0x7fffffffe628, argv=0x7fffffffe618, argc=1, l=<optimized out>) at dl-init.c:72
#6  _dl_init (main_map=main_map@entry=0x55555584e290, argc=1, argv=0x7fffffffe618, env=0x7fffffffe628) at dl-init.c:119
#7  0x00007ffff7dea1ff in dl_open_worker (a=a@entry=0x7fffffffd3a0) at dl-open.c:522
#8  0x00007ffff470b2df in __GI__dl_catch_exception (exception=0x7fffffffd380, operate=0x7ffff7de9dc0 <dl_open_worker>, args=0x7fffffffd3a0) at dl-error-skeleton.c:196
#9  0x00007ffff7de97ca in _dl_open (file=0x7fffffffd6d0 "libigdfcl.so.1", mode=-2147483639, caller_dlopen=0x7ffff1be8718 <NEO::Linux::OsLibrary::OsLibrary(std::__cxx11::basic_string<char, s
td::char_traits<char>, std::allocator<char> > const&)+122>, nsid=<optimized out>, argc=1, argv=<optimized out>, env=0x7fffffffe628) at dl-open.c:605
#10 0x00007ffff33daf96 in dlopen_doit (a=a@entry=0x7fffffffd5d0) at dlopen.c:66
#11 0x00007ffff470b2df in __GI__dl_catch_exception (exception=exception@entry=0x7fffffffd570, operate=0x7ffff33daf40 <dlopen_doit>, args=0x7fffffffd5d0) at dl-error-skeleton.c:196
#12 0x00007ffff470b36f in __GI__dl_catch_error (objname=0x5555557884a0, errstring=0x5555557884a8, mallocedp=0x555555788498, operate=<optimized out>, args=<optimized out>) at dl-error-skelet
on.c:215
#13 0x00007ffff33db735 in _dlerror_run (operate=operate@entry=0x7ffff33daf40 <dlopen_doit>, args=args@entry=0x7fffffffd5d0) at dlerror.c:162
#14 0x00007ffff33db051 in __dlopen (file=<optimized out>, mode=<optimized out>) at dlopen.c:87
#15 0x00007ffff1be8718 in NEO::Linux::OsLibrary::OsLibrary (this=0x555555834390, name="libigdfcl.so.1") at /root/compute-runtime/runtime/os_interface/linux/os_library.cpp:39
#16 0x00007ffff1be8608 in NEO::OsLibrary::load (name="libigdfcl.so.1") at /root/compute-runtime/runtime/os_interface/linux/os_library.cpp:18
#17 0x00007ffff1b2c386 in NEO::loadCompiler<IGC::FclOclDeviceCtx> (libName=0x7ffff1dcb754 "libigdfcl.so.1", outLib=std::unique_ptr<NEO::OsLibrary> = {...}, outLibMain=std::unique_ptr<CIF::C
IFMain> = {...}) at /root/compute-runtime/runtime/compiler_interface/compiler_interface.inl:93
#18 0x00007ffff1b2478e in NEO::CompilerInterface::initialize (this=0x55555584d1d0) at /root/compute-runtime/runtime/compiler_interface/compiler_interface.cpp:364
#19 0x00007ffff1b5fe23 in NEO::CompilerInterface::createInstance () at /root/compute-runtime/runtime/compiler_interface/compiler_interface.h:47
#20 0x00007ffff1b5fa43 in NEO::ExecutionEnvironment::getCompilerInterface (this=0x55555582cbb0) at /root/compute-runtime/runtime/execution_environment/execution_environment.cpp:109
#21 0x00007ffff1ae0d50 in NEO::BuiltIns::getSipKernel (this=0x55555584cec0, type=NEO::SipKernelType::Csr, device=...) at /root/compute-runtime/runtime/built_ins/built_ins.cpp:100
#22 0x00007ffff1acde85 in NEO::initSipKernel (type=NEO::SipKernelType::Csr, device=...) at /root/compute-runtime/runtime/helpers/built_ins_helper.cpp:15
#23 0x00007ffff1bebca7 in NEO::Platform::initialize (this=0x55555578afb0) at /root/compute-runtime/runtime/platform/platform.cpp:181
#24 0x00007ffff1a2d22c in clGetPlatformIDs (numEntries=1, platforms=0x55555582c560, numPlatforms=0x0) at /root/compute-runtime/runtime/api/api.cpp:80
#25 0x00007ffff1a2d44e in clIcdGetPlatformIDsKHR (numEntries=1, platforms=0x55555582c560, numPlatforms=0x0) at /root/compute-runtime/runtime/api/api.cpp:110
#26 0x00007ffff55f26cd in khrIcdVendorAdd () from /usr/lib/libZividCore.so
#27 0x00007ffff55f2c6f in khrIcdOsVendorsEnumerate () from /usr/lib/libZividCore.so
#28 0x00007ffff3b93827 in __pthread_once_slow (once_control=0x7ffff7db5a30 <initialized>, init_routine=0x7ffff55f29c7 <khrIcdOsVendorsEnumerate>) at pthread_once.c:116
#29 0x00007ffff55f2cf1 in khrIcdOsVendorsEnumerateOnce () from /usr/lib/libZividCore.so
#30 0x00007ffff55f2567 in khrIcdInitialize () from /usr/lib/libZividCore.so
#31 0x00007ffff55ef4f7 in clGetPlatformIDs () from /usr/lib/libZividCore.so
#32 0x00007ffff55ec037 in cl::Platform::get(std::vector<cl::Platform, std::allocator<cl::Platform> >*) () from /usr/lib/libZividCore.so
#33 0x00007ffff55e7980 in OCL::Context::Context(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)::$_1::operator()() const () from /usr/lib/libZividCor
e.so
#34 0x00007ffff55e77bf in OCL::Context::Context(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /usr/lib/libZividCore.so
#35 0x00007ffff5537042 in Zivid::ComputeDeviceImplOCL::ComputeDeviceImplOCL(Zivid::Configuration::ComputeDevice const&) () from /usr/lib/libZividCore.so
#36 0x00007ffff5539913 in Zivid::makeComputeDevice(std::optional<Zivid::Configuration::ComputeDevice> const&) () from /usr/lib/libZividCore.so
#37 0x00007ffff506a0b8 in Zivid::ApplicationImpl::ApplicationImpl(Zivid::Configuration const&) () from /usr/lib/libZividCore.so
#38 0x00007ffff506ae0d in Zivid::ApplicationImpl::ApplicationImpl() () from /usr/lib/libZividCore.so
#39 0x00007ffff506890c in Zivid::Application::Application(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /usr/lib/libZividCore.so
#40 0x0000555555555b5e in Zivid::Application::Application() ()
#41 0x00005555555553c6 in main ()

When I set LD_PRELOAD to load libstdc++.so.6, application executed correctly:

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libstdc++.so.6 ./SampleCaptureFromFile 
Initializing camera emulation using file: /root/MiscObjects.zdf
Capture a frame
Saving frame to file: result.zdf

When I removed mentioned patch, and used original intel-opencl package (19.36.14103) with LD_PRELOAD set as earlier, application also executed correctly.