989 2014-03-02 16:50:39 +0100 CLProgramTest.programBinariesTest and LowLevelBindingTest.lowLevelVectorAddTest cause SIGSEGV or EXCEPTION_ACCESS_VIOLATION on AMD cards 2014-04-13 23:29:53 +0200 1 1 3 JogAmp Jocl opencl 1 All all RESOLVED FIXED --- normal --- 1 wwalker3 wwalker3 sgothel --- --- oldest_to_newest 3817 0 wwalker3 2014-03-02 16:50:39 +0100 Here are sample stacks from Linux and Windows: Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [libamdocl64.so+0x42664e] clCreateKernelsInProgram+0xae [error occurred during error reporting (printing native stack), id 0xb] Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j com.jogamp.opencl.llb.impl.CLAbstractImpl.dispatch_clCreateKernelsInProgram0(JILjava/lang/Object;ILjava/lang/Object;IJ)I+0 j com.jogamp.opencl.llb.impl.CLAbstractImpl.clCreateKernelsInProgram(JILcom/jogamp/common/nio/PointerBuffer;Ljava/nio/IntBuffer;)I+104 j com.jogamp.opencl.CLProgram.createCLKernels()Ljava/util/Map;+40 j com.jogamp.opencl.CLProgramTest.programBinariesTest()V+334 Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [amdocl64.dll+0x16f454] j com.jogamp.opencl.llb.impl.CLAbstractImpl.clCreateKernelsInProgram(JILcom/jogamp/common/nio/PointerBuffer;Ljava/nio/IntBuffer;)I+104 j com.jogamp.opencl.CLProgram.createCLKernels()Ljava/util/Map;+40 j com.jogamp.opencl.CLProgramTest.programBinariesTest()V+327 v ~StubRoutines::call_stub V [jvm.dll+0x1cb0c3] Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j com.jogamp.opencl.llb.impl.CLAbstractImpl.dispatch_clCreateKernelsInProgram0(JILjava/lang/Object;ILjava/lang/Object;IJ)I+0 j com.jogamp.opencl.llb.impl.CLAbstractImpl.clCreateKernelsInProgram(JILcom/jogamp/common/nio/PointerBuffer;Ljava/nio/IntBuffer;)I+104 j com.jogamp.opencl.CLProgram.createCLKernels()Ljava/util/Map;+40 j com.jogamp.opencl.CLProgramTest.programBinariesTest()V+327 3818 1 wwalker3 2014-03-02 16:51:43 +0100 Bought a used Radeon HD 5450 at a thrift shop yesterday, will try to duplicate these at home and debug. 3836 2 wwalker3 2014-03-08 17:17:49 +0100 Duplicated these errors on Win 8.1 with Radeon HD 5450, debugging now. 3837 3 wwalker3 2014-03-08 23:13:41 +0100 programBinariesTest() failure was due to AMD drivers crashing in clCreateKernelsInProgram() when the program is not built yet, instead of returning error code CL_INVALID_PROGRAM_EXECUTABLE as they should. lowLevelVectorAddTest() failure was apparently due to the AMD drivers writing past the end of a direct byte buffer in such a way that it made System.gc() crash when called during teardown (this crash didn't even dump stack). Making the buffer larger solved the problem. 3838 4 wwalker3 2014-03-08 23:42:31 +0100 Fixes are at https://github.com/WadeWalker/jocl/tree/bug_989_fix_AMD_driver_crashes, waiting to merge until build server is back up 3872 5 wwalker3 2014-04-13 23:10:14 +0200 lowLevelVectorAddTest() still fails on linux-x86_64-amd and win7-x86_32-amd; will try increasing buffer size further and rewinding it between all reuses. 3873 6 wwalker3 2014-04-13 23:29:53 +0200 That fixed it.