Re: [PATCH v3 7/7] util/oslib-posix: Forward SIGBUS to MCE handler under Linux

[David Hildenbrand]

On 28.09.21 18:59, Daniel P. Berrangé wrote:
> On Mon, Aug 16, 2021 at 11:47:39AM +0200, David Hildenbrand wrote:
> > Temporarily modifying the SIGBUS handler is really nasty, as we might be
> > unlucky and receive an MCE SIGBUS while having our handler registered.
> > Unfortunately, there is no way around messing with SIGBUS when
> > MADV_POPULATE_WRITE is not applicable or not around.
> >
> > Let's forward SIGBUS that don't belong to us to the already registered
> > handler and document the situation.
> >
> > Signed-off-by: David Hildenbrand <david@redhat.com>
> > ---
> >   softmmu/cpus.c     |  4 ++++
> >   util/oslib-posix.c | 36 +++++++++++++++++++++++++++++++++---
> >   2 files changed, 37 insertions(+), 3 deletions(-)
>
> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

Thanks Daniel!


--
Thanks,

David / dhildenb