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From: Mike Galbraith <efault@gmx.de>
To: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Adam Borowski <kilobyte@angband.pl>, kvm <kvm@vger.kernel.org>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: 5.0-rc1 KVM inspired "BUG: Bad page state in process" spew
Date: Mon, 14 Jan 2019 18:42:16 +0100	[thread overview]
Message-ID: <1547487736.31585.21.camel@gmx.de> (raw)
In-Reply-To: <20190114154619.GA5141@linux.intel.com>

On Mon, 2019-01-14 at 07:46 -0800, Sean Christopherson wrote:
> On Sat, Jan 12, 2019 at 07:43:02AM +0100, Mike Galbraith wrote:
> > On Wed, 2019-01-09 at 11:26 -0800, Sean Christopherson wrote:
> > > 
> > > I'll try to bisect.
> > 
> > Good luck with that.  I gave it a go, but that apparently invalidated
> > the warrantee of my vm image :)
> 
> This is fixed in v5.0-rc2 by commit ba422731316d ("mm/mmu_notifier:
> mm/rmap.c: Fix a mmu_notifier range bug in try_to_unmap_one").

Good to hear.

> Nested VMs are great for bisecting KVM issues :)

I tried nesting dolls (to speed bisection.. hah!), but couldn't
reliable trigger the problem with my reproducer.  Even if it had,
nested VMs are pretty cool, but not the _least bit_ fast :)

	-Mike

      reply	other threads:[~2019-01-14 17:42 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-09  5:38 5.0-rc1 KVM inspired "BUG: Bad page state in process" spew Mike Galbraith
2019-01-09 14:42 ` Adam Borowski
2019-01-09 15:03   ` Mike Galbraith
2019-01-09 19:26     ` Sean Christopherson
2019-01-12  6:43       ` Mike Galbraith
2019-01-14 15:46         ` Sean Christopherson
2019-01-14 17:42           ` Mike Galbraith [this message]

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