On Wed, Jun 19, 2013 at 11:04:25AM -0500, Peter Bergner wrote: > On Tue, 2013-06-18 at 21:48 +0200, Andi Kleen wrote: > > > Given Torvald's comment, can you verify whether your hw txn succeeds > > > (all the way to commit) or whether it is failing and somehow skips > > > the fall through code that is hanging for us (Power and S390)? > > > > All the 3 transactions in reentrant.c abort. > > Can you please explain the above? When you say abort, do you mean > that libitm is calling htm_abort() or that your xbegin hardware > instruction isn't succeeding?
XBEGIN aborts, according to the hardware counters. > > > That's not surprising, because there are usually lots of aborts in > > the startup phase of programs, and the test doesn't use a loop. > > Is this a libitm statement or an Intel RTM statement, that the > startup phase usually has lots of aborts? This is a Intel RTM statement. -Andi
