Re: [Xen-devel] gcc version (HVM domain problem)

[Khoa Huynh <khoa@xxxxxxxxxx>]

Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote on 02/09/2006 04:03:38 AM:
>
> On 9 Feb 2006, at 02:39, Yu, Ping Y wrote:
>
> > We met a problem on gcc version. When we build xen-unstable version
> > 8767
> > and found the following problem in x86-32.
> > (1)When we use gcc version above or equal 3.4.3, HVM could be
> > successfully start
> > (2)When we use gcc version below 3.4.3, HVM starting will fail.
> >
> > But latest version 8793 could be built in gcc 3.4.2, and VMX works
> > well.
> >
> > So my question, what gcc version and build platform is preferred by
> > XEN?
> > Thanks in advance.
>
> We generally use 3.3.x or 3.4.x. I use FC3's 3.4.2 mostly.

I have noticed that we could not start an HVM domain starting with
the following changeset:

changeset:  8752:0e7bdd973e17
user:       kaf24@xxxxxxxxxxxxxxxxxxxx
date:       Fri Feb 3 05:02:30 2006 +0100
summary:    Build the phys_to_machine_mapping array in Xen rather than

I am using FC3's gcc 3.4.2 as well.  We also see this problem with
SLES9 SP2's gcc 4.0.2.  However, prior to the above changeset, we
did not have any problem with starting HVM domains in 32-bit at all.
Maybe this particular changeset was not compiled correctly by some
gcc version ?
Thanks.

Regards,
Khoa

>
>   -- Keir
>
>
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