From: Pavel Fedin <p.fedin@samsung.com>
To: 'Marc Zyngier' <marc.zyngier@arm.com>,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Subject: RE: BUG ALERT: ARM32 KVM does not work in 4.4-rc3
Date: Wed, 02 Dec 2015 11:19:52 +0300 [thread overview]
Message-ID: <00b201d12cda$3899c7f0$a9cd57d0$@samsung.com> (raw)
In-Reply-To: <565D677E.8000505@arm.com>
Hello!
> > My project involves ARM64, but from time to time i also test ARM32
> > KVM. I have discovered that it stopped working in 4.4-rc3. The same
> > virtual machine works perfectly under current kvmarm/next, but gets
> > stuck at random point under 4.4-rc3 from linux-stable. I'm not sure
> > that i have time to investigate this quickly, but i'll post some new
> > information as soon as i get it
[skip]
> So until you bisect it to an exact commit and configuration, I declare
> the alert over. ;-)
Just in case, to make sure you don't miss it. I have found the problem, and it's just good luck that it works on some machines.
Unreliably, BTW. The problem is that it verifies guest's physical addresses (IPA) against host memory map; and the fix is here:
http://www.spinics.net/lists/kvm/msg124561.html
Kind regards,
Pavel Fedin
Expert Engineer
Samsung Electronics Research center Russia
prev parent reply other threads:[~2015-12-02 8:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 7:24 BUG ALERT: ARM32 KVM does not work in 4.4-rc3 Pavel Fedin
2015-12-01 9:25 ` Marc Zyngier
2015-12-01 9:29 ` Pavel Fedin
2015-12-01 10:03 ` Pavel Fedin
2015-12-01 12:09 ` Pavel Fedin
2015-12-02 8:19 ` Pavel Fedin [this message]
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