Messages in this thread | | | Date | Fri, 14 Oct 2011 22:23:25 +0200 | Subject | Re: [RFC] fixing the UML failure root cause | From | richard -rw- weinberger <> |
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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. >
Doesn't vsyscall_emu_64.S transform any vsyscall into a real syscall? So UML can trap it.
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