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    SubjectRe: [Resend][PATCH] x86/power/64: Always create temporary identity mapping correctly
    On Tue, 9 Aug 2016, Rafael J. Wysocki wrote:

    > I have a murky suspicion, but it is really weird. Namely, what if
    > restore_jump_address in set_up_temporary_text_mapping() happens to be
    > covered by the restore kernel's identity mapping? Then, the image
    > kernel's entry point may get overwritten by something else in
    > core_restore_code().

    So this made me to actually test a scenario where I'd suspend a kernel
    that's known-broken (i.e. contains 021182e52fe), and then have it resumed
    by a kernel that has 021182e52fe reverted. It resumed successfully.

    Just a datapoint.

    --
    Jiri Kosina
    SUSE Labs

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