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Date: Mon, 05 Oct 2009 13:16:47 +0200 From: Yevgeny Petrilin <yevgenyp@...lanox.co.il> To: Roland Dreier <rdreier@...co.com> CC: davem@...emloft.net, netdev@...r.kernel.org Subject: Re: [PATCH 1/7] mlx4: Added interrupts test support Roland Dreier wrote: > This feels like a pretty risky thing to do while the device might be > handling all sorts of other traffic at the same time. Are you sure > there are no races you expose here? We did testing on this, during heavy traffic. A race can happen when there are two processes that execute that test simultaneously, but the tests always executed from Ethtool context. I will add additional protection in case somebody tries to execute this test from another context. > Have you actually seen cases where > the interrupt test during initialization works but then this test > catches a problem? (My experience has been that if any MSI-X interrupts > work from a device, then they'll all work) It also checks that all the EQs work properly. During initialization we only check the asynchronous EQ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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