Downloaded AMD Stream SDK v1.1-beta and compiled and executed simple_matmult using SuSE 11.0 & Catalyst 8.7 on a Radeon 4870. The result follows:
libxcb: WARNING! Program tries to unlock a connection without having acquired
a lock first, which indicates a programming error.
There will be no further warnings about this issue.
libxcb: WARNING! Program tries to lock an already locked connection,
which indicates a programming error.
There will be no further warnings about this issue.
simple_matmult_d: xcb_io.c:352: _XReply: Assertion `!dpy->xcb->reply_data' failed.
Aborted
---jski