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    SubjectRe: [patch] paravirt: VDSO page is essential

    * Zachary Amsden <zach@vmware.com> wrote:

    > > yeah. (plus my patches of course that remove the current
    > > papering-over hackery and restores COMPAT_VDSO.)
    >
    > Yes, I don't have a problem with your patch, I just wish I had been
    > cc'd on it. [...]

    (i Cc:-ed you to the other ones - i simply forgot and bounced it to you
    a few hours down the line - sorry!)

    > [...] Fixing this is rather tricky, but I believe no strange build
    > magic is required, it can be done in kernel init code. Still building
    > my SUSE 9.0 guest to test. SUSE 9.0 is one of those that requires
    > COMPAT_VDSO, yes?

    yeah, and a handful of other ones. It depends on the glibc version:
    early vdso glibs were buggy and assumed a few things about the vdso, so
    they would segfault on the new-style vdso which is fully relocatable
    (and hence mergable into the vma space, randomizable, etc.).

    Ingo
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