Re: Regression with "arm64: KVM: Skip MMIO insn after emulation" on 4.4 stable

2019-02-28 Thread Marc Zyngier
On 28/02/2019 11:13, Marc Zyngier wrote: > On 28/02/2019 08:49, Marc Zyngier wrote: >> On Thu, 28 Feb 2019 08:16:05 +, >> Greg KH wrote: >> >> Hi both, >> >>> >>> On Wed, Feb 27, 2019 at 04:36:39PM -0800, Daniel Verkamp wrote: Hello, In my testing of crosvm[1] with Linux 4.4.175

Re: Regression with "arm64: KVM: Skip MMIO insn after emulation" on 4.4 stable

2019-02-28 Thread Marc Zyngier
On 28/02/2019 08:49, Marc Zyngier wrote: > On Thu, 28 Feb 2019 08:16:05 +, > Greg KH wrote: > > Hi both, > >> >> On Wed, Feb 27, 2019 at 04:36:39PM -0800, Daniel Verkamp wrote: >>> Hello, >>> >>> In my testing of crosvm[1] with Linux 4.4.175, I am observing failures >>> on a 'kevin' Chromebo

Re: Regression with "arm64: KVM: Skip MMIO insn after emulation" on 4.4 stable

2019-02-28 Thread Marc Zyngier
On Thu, 28 Feb 2019 08:16:05 +, Greg KH wrote: Hi both, > > On Wed, Feb 27, 2019 at 04:36:39PM -0800, Daniel Verkamp wrote: > > Hello, > > > > In my testing of crosvm[1] with Linux 4.4.175, I am observing failures > > on a 'kevin' Chromebook (RK3399) device - the guest kernel does not > >

Re: Regression with "arm64: KVM: Skip MMIO insn after emulation" on 4.4 stable

2019-02-28 Thread Greg KH
On Wed, Feb 27, 2019 at 04:36:39PM -0800, Daniel Verkamp wrote: > Hello, > > In my testing of crosvm[1] with Linux 4.4.175, I am observing failures > on a 'kevin' Chromebook (RK3399) device - the guest kernel does not > even get to the point of printing its first messages, and the host > seems to

Regression with "arm64: KVM: Skip MMIO insn after emulation" on 4.4 stable

2019-02-27 Thread Daniel Verkamp
Hello, In my testing of crosvm[1] with Linux 4.4.175, I am observing failures on a 'kevin' Chromebook (RK3399) device - the guest kernel does not even get to the point of printing its first messages, and the host seems to be spinning at 100% CPU in KVM_RUN. I narrowed this down to the 4.4 stable