Messages in this thread | | | Date | Wed, 29 Jan 2020 19:49:35 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] locking/osq_lock: fix a data race in osq_wait_next |
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On Tue, Jan 28, 2020 at 04:22:53PM -0800, Paul E. McKenney wrote: > On Tue, Jan 28, 2020 at 05:56:55PM +0100, Peter Zijlstra wrote: > > On Tue, Jan 28, 2020 at 12:46:26PM +0100, Marco Elver wrote: > > > > > > Marco, any thought on improving KCSAN for this to reduce the false > > > > positives? > > > > > > Define 'false positive'. > > > > I'll use it where the code as written is correct while the tool > > complains about it. > > I could be wrong, but I would guess that Marco is looking for something > a little less subjective and a little more specific. ;-)
How is that either? If any valid translation by a compile results in correct functionality, yet the tool complains, then surely we can speak of a objective fact.
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