On Mon, Mar 17, 2003 at 08:37:30PM +0100, Bo Lorentsen wrote: > On Mon, 2003-03-17 at 18:32, Daniel Jacobowitz wrote: > > > > Huh? Is this your own installation of GCC 3.2? Our > > i386-linux/bits/atomicity.h contains the atomic operations, not a > > single-threaded version. > No, it is not, it is the standard (testing) debian package. I'm not an > i386 asm expert but the inline assembler looks ok for single cpu MT > processing, but how about SMP. Does these instructions synchronize > between two (or more) CPUs ? > > I have this program, that works nicely as single thread, and multithread > while using one CPU, but I get funny random (memory related) errors > while running on a SMP machine. > > Am I looking in the wrong direction ?
Those operations are atomic for any number of CPUs, so you're looking in the wrong place. -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer
