Re: [Qemu-devel] VM can not boot after commit 235e898

[Gleb Natapov <gleb@redhat.com>]

On Tue, Jun 04, 2013 at 03:47:47PM +0800, Dunrong Huang wrote:
> On Tue, Jun 4, 2013 at 2:47 PM, Paolo Bonzini <pbonzini@redhat.com> wrote:
> 
> > Il 04/06/2013 05:47, Dunrong Huang ha scritto:
> > >
> > > QEMU command:
> > > ~/usr/bin/qemu-system-x86_64 -enable-kvm -m 1024 debian-append.img
> > >
> > > git bisect tells that the following commit causes this bug:
> > >
> > > commit 235e8982ad393e5611cb892df54881c872eea9e1
> > > Author: Jordan Justen <jordan.l.justen@intel.com
> > > <mailto:jordan.l.justen@intel.com>>
> > > Date:   Wed May 29 01:27:26 2013 -0700
> > >
> > >     kvm: support using KVM_MEM_READONLY flag for regions
> > >
> > >     For readonly memory regions and rom devices in romd_mode,
> > >     we make use of the KVM_MEM_READONLY. A slot that uses
> > >     KVM_MEM_READONLY can be read from and code can execute from the
> > >     region, but writes will exit to qemu.
> > >
> > > After reverting this commit, VM can boot normally.
> >
> > A patch is queued for that.  Using kernel 3.8 or reverting the commit
> > will both work.
> >
> Ok, thanks for information, I will try it.
> 
The fix is 651eb0f4 and you claim it is still fails for you. This is
strange because the commit fixed the problem for everyone else. Can you
double check that you are testing the right commit and you recompiled
and reinstalled?

--
			Gleb.