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    SubjectRe: [PATCH] clockevents: Fix suspend/resume to disk hangs
    Thomas Gleixner wrote:
    > I finally found a dual core box, which survives suspend/resume without
    > crashing in the middle of nowhere. Sigh, I never figured out from the
    > code and the bug reports what's going on.
    >
    > The observed hangs are caused by a stale state transition of the clock
    > event devices, which keeps the RCU synchronization away from completion,
    > when the non boot CPU is brought back up.
    >
    > The suspend/resume in oneshot mode needs the similar care as the
    > periodic mode during suspend to RAM. My assumption that the state
    > transitions during the different shutdown/bringups of s2disk would go
    > through the periodic boot phase and then switch over to highres resp.
    > nohz mode were simply wrong.
    >
    > Add the appropriate suspend / resume handling for the non periodic
    > modes.
    >
    > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

    Hi,
    I can confirm that this patch fixed the problem on Thinkpad X60s.

    Thanks !

    Milan
    --
    mbroz@redhat.com

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