linux-kernel - Re: [PATCH 00/13] mmu_notifier kill invalidate

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Message-ID: <1504082414.6014.39.camel@gmx.de>
Date:   Wed, 30 Aug 2017 10:40:14 +0200
From:   Mike Galbraith <efault@....de>
To:     Jerome Glisse <jglisse@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Bernhard Held <berny156@....de>,
        Adam Borowski <kilobyte@...band.pl>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Joerg Roedel <jroedel@...e.de>,
        Dan Williams <dan.j.williams@...el.com>,
        Sudeep Dutt <sudeep.dutt@...el.com>,
        Ashutosh Dixit <ashutosh.dixit@...el.com>,
        Dimitri Sivanich <sivanich@....com>,
        Jack Steiner <steiner@....com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        ppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        DRI <dri-devel@...ts.freedesktop.org>,
        amd-gfx@...ts.freedesktop.org,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "open list:AMD IOMMU (AMD-VI)" <iommu@...ts.linux-foundation.org>,
        xen-devel <xen-devel@...ts.xenproject.org>,
        KVM list <kvm@...r.kernel.org>
Subject: Re: [PATCH 00/13] mmu_notifier kill invalidate_page callback

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