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    SubjectRe: [PATCH] x86/tsc: Append description for 'tsc=unstable' boot parameter
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    Hi Pavel,

    At 10/09/2017 08:25 PM, Pavel Tatashin wrote:
    > Hi Dou,
    >
    > Have you tested tsc=unstable with your DR setup? Is it working as
    > expected? I mean instead of previous "notsc"?

    Not yet, I have applied for the machine, I'll start testing once I have
    access to it. And I am looking at this part of code to prepare for the
    test. :-)

    >
    > Reviewed-by: Pavel Tatashin <pasha.tatashin@oracle.com>
    >
    Thank you very much.

    Thanks,
    dou.

    > Thank you,
    > Pavel
    >
    > On Mon, Oct 9, 2017 at 5:03 AM, Dou Liyang <douly.fnst@cn.fujitsu.com> wrote:
    >> Commit 8309f86cd41e ("x86/tsc: Provide 'tsc=unstable' boot parameter") adds
    >> a new parameter 'tsc=unstable', but doesn't add some description to guide
    >> users.
    >>
    >> Append the description of 'tsc=unstable' at the end of 'tsc=' section.
    >>
    >> Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
    >> ---
    >> Documentation/admin-guide/kernel-parameters.txt | 3 +++
    >> 1 file changed, 3 insertions(+)
    >>
    >> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
    >> index 9a84483..33e83b6 100644
    >> --- a/Documentation/admin-guide/kernel-parameters.txt
    >> +++ b/Documentation/admin-guide/kernel-parameters.txt
    >> @@ -4196,6 +4196,9 @@
    >> Used to run time disable IRQ_TIME_ACCOUNTING on any
    >> platforms where RDTSC is slow and this accounting
    >> can add overhead.
    >> + [x86] unstable: mark tsc clocksource as unstable, this
    >> + marks the TSC unconditionally unstable at bootup and
    >> + avoids any further wobbles once the TSC watchdog notices.
    >>
    >> turbografx.map[2|3]= [HW,JOY]
    >> TurboGraFX parallel port interface
    >> --
    >> 2.5.5
    >>
    >>
    >>
    >
    >
    >


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