AnsweredAssumed Answered

Access violation on the CPU

Question asked by spectral on Apr 4, 2012
Latest reply on Apr 18, 2012 by spectral



I'm still facing a lot of crash with the AMD SDK and this time it looks really strange to me because it is a very simple case.

I have a kernel that 'initialize' some structures and when I execute it, I receive an access violation.


By example, on the host side the buffer address is : 0x000000000fad00a4 and contains 2048 'clTask' structure (when size(clTask) = 640 on both C++ and CL). So, there is no memory allocation problem, because the size of the buffer is correct.


When I execute the kernel, I print some information :

GID=[0] sizeof_clTask[640] address[000000000FAD00A4]

GID=[1024] sizeof_clTask[640] address[000000000FB700A4]


So, it looks correct... but I receive the following error message :


Unhandled exception at 0x0c164d4f in spectralStudio.exe: 0xC0000005: Access violation reading location 0xffffffffffffffff.


For information I run it on a Intel i7 and this kernel work with NVidia SDK and Intel SDK too.

How can we collaborate to fix the problem ?