From mboxrd@z Thu Jan 1 00:00:00 1970 From: vwadekar@nvidia.com (Varun Wadekar) Date: Tue, 27 Dec 2011 10:19:32 +0530 Subject: Is Pandaboard cpuhotplug working stably? In-Reply-To: <20111222102454.GD3354@n2100.arm.linux.org.uk> References: <20111221094624.GB3354@n2100.arm.linux.org.uk> <20111221100706.GC3354@n2100.arm.linux.org.uk> <20111222102454.GD3354@n2100.arm.linux.org.uk> Message-ID: <4EF94E5C.5040608@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org >> There are few patches floating around for this issue. I posted one version >> long back [1] and then there was one more form Thomas G. >> The most recent is from one is from Peter Z [2] which is moving the >> fix for the cup online race to core code. >> >> Can you try Peter's patch with your test-case ? >> >> Regards, >> Santosh >> >> [1] https://lkml.org/lkml/2011/6/20/79 >> [2] https://lkml.org/lkml/2011/12/15/255 > [1] is already fixed - and is not the latest "problem" with this code. > Fixing the problem in [1] actually itself created the latest problem > with smp_call_function() which wasn't there before this change. Patch > [2] refers to this problem and proposes a fix for it. > > Any idea if this patch if good to go in mainline? I am facing the same issue on Tegra with 3.1.5 and this patch fixes the issue caused by [1]. Ideally if this change is ok, then it should be merged into 3.1.6 too. Since this change seems to fix the issue at hand, I intend to merge the change directly in our internal repo and wait for it to be a part of 3.1.6. Thanks.