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From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Xiong Zhang <xiong.y.zhang@intel.com>,
	Wayne Boyer <wayne.boyer@intel.com>,
	Zhenyu Wang <zhenyuw@linux.intel.com>,
	Jun Nakajima <jun.nakajima@intel.com>,
	Weijiang Yang <weijiang.yang@intel.com>
Subject: Re: [PATCH] KVM: x86/mmu: Add capability to zap only sptes for the affected memslot
Date: Thu, 23 Jul 2020 08:57:11 -0700	[thread overview]
Message-ID: <20200723155711.GD21891@linux.intel.com> (raw)
In-Reply-To: <20200721100036.464d4440@w520.home>

On Tue, Jul 21, 2020 at 10:00:36AM -0600, Alex Williamson wrote:
> On Mon, 20 Jul 2020 20:03:19 -0700
> Sean Christopherson <sean.j.christopherson@intel.com> wrote:
> 
> > +Weijiang
> > 
> > On Mon, Jul 13, 2020 at 12:06:50PM -0700, Sean Christopherson wrote:
> > > The only ideas I have going forward are to:
> > > 
> > >   a) Reproduce the bug outside of your environment and find a resource that
> > >      can go through the painful bisection.  
> > 
> > We're trying to reproduce the original issue in the hopes of biesecting, but
> > have not yet discovered the secret sauce.  A few questions:
> > 
> >   - Are there any known hardware requirements, e.g. specific flavor of GPU?
> 
> I'm using an old GeForce GT635, I don't think there's anything special
> about this card.

Would you be able to provide your QEMU command line?  Or at least any
potentially relevant bits?  Still no luck reproducing this on our end.

Thanks again!

  reply	other threads:[~2020-07-23 15:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-03  2:50 [PATCH] KVM: x86/mmu: Add capability to zap only sptes for the affected memslot Sean Christopherson
2020-07-08 16:08 ` Paolo Bonzini
2020-07-09 21:12   ` Sean Christopherson
2020-07-09 22:18     ` Paolo Bonzini
2020-07-10  4:29       ` Sean Christopherson
2020-07-13 18:22         ` Alex Williamson
2020-07-13 19:06           ` Sean Christopherson
2020-07-21  3:03             ` Sean Christopherson
2020-07-21 16:00               ` Alex Williamson
2020-07-23 15:57                 ` Sean Christopherson [this message]
2020-07-23 18:35                   ` Alex Williamson
2020-09-14 16:49                     ` Sean Christopherson

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