Message-ID: <1504082414.6014.39.camel@gmx.de>
Subject: Re: [PATCH 00/13] mmu_notifier kill invalidate_page callback
From: Mike Galbraith <efault@gmx.de>
To: Jerome Glisse <jglisse@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
Cc: Bernhard Held <berny156@gmx.de>, Adam Borowski <kilobyte@angband.pl>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Andrea Arcangeli <aarcange@redhat.com>, Joerg Roedel <jroedel@suse.de>,
        Dan Williams <dan.j.williams@intel.com>,
        Sudeep Dutt <sudeep.dutt@intel.com>,
        Ashutosh Dixit <ashutosh.dixit@intel.com>,
        Dimitri Sivanich <sivanich@sgi.com>, Jack Steiner <steiner@sgi.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Radim =?UTF-8?Q?Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@redhat.com>,
        ppc-dev <linuxppc-dev@lists.ozlabs.org>,
        DRI <dri-devel@lists.freedesktop.org>, amd-gfx@lists.freedesktop.org,
        "linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
        "open list:AMD IOMMU (AMD-VI)" <iommu@lists.linux-foundation.org>,
        xen-devel <xen-devel@lists.xenproject.org>,
        KVM list <kvm@vger.kernel.org>
Date: Wed, 30 Aug 2017 10:40:14 +0200
In-Reply-To: <20170830005615.GA2386@redhat.com>
References: <20170829235447.10050-1-jglisse@redhat.com>
         <CA+55aFz6ArJ-ADXiYCu6xMUzdY=mKBtkzfJmLaBohC6Ub9t2SQ@mail.gmail.com>
         <20170830005615.GA2386@redhat.com>
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On Tue, 2017-08-29 at 20:56 -0400, Jerome Glisse wrote:
> On Tue, Aug 29, 2017 at 05:11:24PM -0700, Linus Torvalds wrote:
> 
> > People - *especially* the people who saw issues under KVM - can you
> > try out Jérôme's patch-series? I aded some people to the cc, the full
> > series is on lkml. Jérôme - do you have a git branch for people to
> > test that they could easily pull and try out?
> 
> https://cgit.freedesktop.org/~glisse/linux mmu-notifier branch
> git://people.freedesktop.org/~glisse/linux

Looks good here.

I reproduced fairly quickly with RT host and 1 RT guest by just having
the guest do a parallel kbuild over NFS (the guest had to be restored
afterward, was corrupted).  I'm currently flogging 2 guests as well as
the host, whimper free.  I'll let the lot broil for while longer, but
at this point, smoke/flame appearance seems comfortingly unlikely.

	-Mike