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    SubjectRe: [PATCH] x86: fix typo(?) in step.c

    * Jan Beulich <> wrote:

    > TIF_DEBUGCTLMSR has no meaning in the actual MSR...

    thanks, applied. The effect of this bug is that block-stepping is not
    disabled ... [~TIF_DEBUGCTLMSR masks out bit 25, while in the MSR we
    want to mask out bit 1]

    Roland - i guess this means block-stepping (a new ptrace feature in .25)
    is not particularly well-tested. Do you have any standalone testcases
    that could be run?


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