Re: [Qemu-devel] [PATCH] memory: Set notdirty_mem_ops validator

[Peter Maydell]

On Tue, 3 Sep 2019 at 17:47, Tony Nguyen <address@hidden> wrote:
>
> On Tue, Sep 03, 2019 at 11:25:28AM +0100, Peter Maydell wrote:
> > On Mon, 2 Sep 2019 at 02:36, Tony Nguyen <address@hidden> wrote:
> > >
> > > Existing read rejecting validator was mistakenly cleared.
> > >
> > > Reads dispatched to io_mem_notdirty then segfaults as there is no read
> > > handler.
> >
> > Do you have the commit hash for where we introduced the
> > bug that this is fixing?
> >
> > thanks
> > -- PMM
> >
>
> ad52878f97610757390148fe5d5b4cc5ad15c585.
>
> Please feel free to amend my commit message.

Thanks.

> I do not understand why sun4u booting Solaris 10 triggers the bug.

Do you have a backtrace of QEMU from the segfault? I'm having trouble
thinking of what the situation is when we'd try to invoke the
read handler on io_mem_notdirty...

thanks
-- PMM