Re: [Qemu-devel] Qemu: Guest Linux hangs on Mac OS X 10.11

[Peter Maydell]

On 9 November 2015 at 10:21, Paolo Bonzini <address@hidden> wrote:
> Hmm, so the list is pretty short:

The good news is that my second bisect conclusively fingered
the culprit for why the bug went away...

>       configure: disable FORTIFY_SOURCE under clang

...the bad news is it's because this patch inadvertently makes
all non-fortify-source compiles be no-optimization (and we already
knew the bug didn't repro in an unoptimized build).

This also explains the weird behaviour in bisect: it was only
when some later commit touched enough of the header files to
force recompilation of whichever object file it is that's
being problematic that the bug disappeared.

thanks
-- PMM