BugReport: crash in clBuildProgram, on CPU on Windows10

[Mihai_P_]

Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz; OpenCL 1.2 (Build 76427) warning: HEAP[gpuowl.exe]: warning: Invalid address specified to RtlFreeHeap( 0000000002B30000, 000000000D645B00 ) Thread 1 "gpuowl" received signal SIGTRAP, Trace/breakpoint trap. 0x00007ffd8056c4cf in ntdll!RtlpNtMakeTemporaryKey () from /c/WINDOWS/SYSTEM32/ntdll.dll (gdb) bt #0 0x00007ffd8056c4cf in ntdll!RtlpNtMakeTemporaryKey () from /c/WINDOWS/SYSTEM32/ntdll.dll #1 0x00007ffd8053829a in ntdll!memset () from /c/WINDOWS/SYSTEM32/ntdll.dll #2 0x00007ffd80503d01 in ntdll!EtwEventProviderEnabled () from /c/WINDOWS/SYSTEM32/ntdll.dll #3 0x00007ffd8052df51 in ntdll!memset () from /c/WINDOWS/SYSTEM32/ntdll.dll #4 0x00007ffd804acfb6 in ntdll!RtlFreeHeap () from /c/WINDOWS/SYSTEM32/ntdll.dll #5 0x00007ffd69a154c8 in intelocl64!clGetExtensionFunctionAddressForPlatform () from /c/Program Files (x86)/Common Files/Intel/OpenCL/bin/x64/intelocl64.dll #6 0x00007ffd699dd32a in intelocl64!clGetExtensionFunctionAddressForPlatform () from /c/Program Files (x86)/Common Files/Intel/OpenCL/bin/x64/intelocl64.dll #7 0x00007ffd699d2e02 in intelocl64!clGetExtensionFunctionAddressForPlatform () from /c/Program Files (x86)/Common Files/Intel/OpenCL/bin/x64/intelocl64.dll #8 0x00007ffd699c6546 in intelocl64!clGetExtensionFunctionAddressForPlatform () from /c/Program Files (x86)/Common Files/Intel/OpenCL/bin/x64/intelocl64.dll #9 0x00007ffd699b39f3 in intelocl64!clBuildProgram () from /c/Program Files (x86)/Common Files/Intel/OpenCL/bin/x64/intelocl64.dll #10 0x00000001004019ec in compile (device=0x2b37770, context=0x2b38ec0, fileName=0x100407858 "gpuowl.cl", opts=0x100407072 "") at clwrap.h:117 #11 0x0000000100404509 in main (argc=3, argv=0xffffcc10) at gpuowl.cpp:543

[Jeffrey_M_Intel1]

Sorry for the delay getting back to you.  

Is this the gpuOwl project you're testing against? https://github.com/preda/gpuowl

[Mihai_P_]

Yes, although the line numbers in gpuowl.cpp may not match exactly because I added a few debug printf()s.