GMP aborting in __gmpn_cpuvec_init when run inside KVM

Richard Guenther rguenther at
Thu May 31 17:41:58 CEST 2012

On Thu, 31 May 2012, Marc Glisse wrote:

> On Thu, 31 May 2012, Richard Guenther wrote:
> > KVM unfortunately defaults to an impossible CPU model/family on x86_64
> > ("GenuineIntel", family 6, model 2).  This leads to
> > __gmpn_cpuvec_init abort()ing.  Of course KVM is to blame here but
> > they appearantly don't want to fix ...
> Do you have a link to the corresponding bug report / conversation?

and its various duplicates report GCC crashes because of this
when using in a virtualized 64bit environment.  The KVM folks not
willing to fix things is is not direct information but from
conversation in that bug.

Googling also leads me to

so we're not the only ones seeing this.


Richard Guenther <rguenther at>
SUSE LINUX Products GmbH - Nuernberg - AG Nuernberg - HRB 16746
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer

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