mono vs exec-shield

[Alexander Larsson]

On Thu, 2006-10-19 at 17:16 +0200, David Nielsen wrote:
> tor, 19 10 2006 kl. 11:12 +0200, skrev Alexander Larsson:
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=210830 describes an
> > issue where mono crashes on startup with later kernels that have
> > exec-shield enabled. I don't see this on my Core Duo machine, so I don't
> > know exactly what machines see this. Anyone else see this?
> > 
> > Mono does use mprotect to make the heap pages executable. Is there
> > something in exec-shield prohibiting this for some machines? If so, is
> > there a way to disable this for the mono binary?
> 
> All my Mono applications run just fine on my AMD64 X2 with SELinux
> enabled and what other security features come default with FC6, I can't
> say I've seen this bug. Most of my frequently used applications run
> using mono so I guess I would have complained loudly if they crashed on
> startup.

Further information from the reporter seems to say that it only affects
xen kernels (dom0), on all cpu:s but opterons. Very strange stuff.

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 Alexander Larsson                                            Red Hat, Inc 
                   alexl at redhat.com    alla at lysator.liu.se 
He's a suave guerilla ex-con who dotes on his loving old ma. She's a 
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