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Date: Fri, 21 Sep 2012 16:45:21 -0400
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Andres Lagar-Cavilla <andres.lagarcavilla@gmail.com>
Cc: Andres Lagar-Cavilla <andreslc@gridcentric.ca>,
        Ian Campbell <Ian.Campbell@citrix.com>,
        Andres Lagar-Cavilla <andres@lagarcavilla.org>,
        xen-devel <xen-devel@lists.xen.org>,
        David Vrabel <david.vrabel@citrix.com>,
        David Miller <davem@davemloft.net>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [PATCH] Xen backend support for paged out grant targets V4.
Message-ID: <20120921204521.GA30614@phenom.dumpdata.com>
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> > So with this patch when I launch an PVHVM guest on Xen 4.1 I get this
> > in the initial domain and the guest is crashed:
> > 
> > [  261.927218] privcmd_fault: vma=ffff88002a31dce8 7f4edc095000-7f4edc195000, pgoff=c8, uv=00007f4edc15d000
> 
> With this patch? Or with the mmapbatch v2? This is a page fault in a foreign-mapped VMA. Not touched by this grant backend patch we are talking about.
> 
> Does the hypervisor dump anything to its console?
> 
> At which point during xc_hvm_build do you see this? (or elsewhere in the toolstack?)

My apologies. It was Oliver's persistent grant patch that does not like your patch.