Messages in this thread | | | Date | Thu, 27 Jan 2005 20:53:32 +0100 | From | Ingo Molnar <> | Subject | Re: Patch 1/6 introduce sysctl |
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* Dave Jones <davej@redhat.com> wrote:
> On Thu, Jan 27, 2005 at 08:11:20PM +0100, Ingo Molnar wrote: > > > so, i'm glad to report, it's a non-issue. Sometimes developers want to > > disable randomisation during development (quick'n'easy hacks get quicker > > and easier - e.g. if you watch an address within gdb), so having the > > capability for unprivileged users to disable randomisation on the fly is > > useful and Fedora certainly offers that, but from a support and > > bug-reporting POV it's not a problem. > > It's worth noting that some users have found the randomisation disable > useful for running things like xine/mplayer etc with win32 codecs that > seem to just segfault otherwise. These things seem to be incredibly > fragile to address space layout changes, which is a good argument for > trying to avoid these wierdo formats where possible in favour of free > codecs.
yes, this was by far the biggest problem randomisation caused. Note that while Fedora offers a personality-hack to disable randomisation on the fly, which Wine could have made use of to have the fix automatically; Alexandre didnt want to rely on it in Wine because that flag's semantics (PER_LINUX32) were not upstream. (and i very much agree with Alexandre on that call).
But once something like this is upstream i believe Wine can (and will) have a robust legacy-binary-format loader that is not affected by randomisation effects, with minimal changes.
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