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0031e38adf
This patch adds data-race detection to the Linux-Kernel Memory Model. As part of this effort, support is added for: compiler barriers (the barrier() function), and a new Preserved Program Order term: (addr ; [Plain] ; wmb) Data races are marked with a special Flag warning in herd. It is not guaranteed that the model will provide accurate predictions when a data race is present. The patch does not include documentation for the data-race detection facility. The basic design has been explained in various emails, and a separate documentation patch will be submitted later. This work is based on an earlier formulation of data races for the LKMM by Andrea Parri. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Andrea Parri <andrea.parri@amarulasolutions.com> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com> |
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