Messages in this thread | | | Date | Sat, 15 Oct 2011 18:57:57 +0200 | From | Ingo Molnar <> | Subject | Re: [RFC] fixing the UML failure root cause |
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* richard -rw- weinberger <richard.weinberger@gmail.com> wrote:
> On Fri, Oct 14, 2011 at 10:17 PM, Andrew Lutomirski <luto@mit.edu> wrote: > > On Fri, Oct 14, 2011 at 12:53 PM, richard -rw- weinberger > > <richard.weinberger@gmail.com> wrote: > >> On Tue, Oct 11, 2011 at 7:24 PM, Andrew Lutomirski <luto@mit.edu> wrote: > >>> What do you think of this approach? If it seems good, I'll finish the > >>> patch and submit it. > >>> > >>> With this patch applied, UML appears to work, but it fills the log with > >>> exploit attempt warnings. Any ideas on what to do about that? > >>> > >> > >> I can confirm that this patch works. > >> And I really like vsyscall=emulate because with that UML can trap vsyscalls. :-) > > > > Are you sure you don't mean vsyscall=native? I suspect that UML can't > > actually trap vsyscalls in emulate mode right now, although that ought > > to be fixable. > > > > §/%)"&!, you are so right! > I missed that vsyscall=native is the default setting now. > Sorry for the confusion.
Switch back to vsyscall=native was just a temporary ABI fix for v3.1 - we'd like to switch to vsyscall=emulate again ASAP (possibly in v3.2), once Andrew is done with the patch and everyone is happy with it.
Thanks,
Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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