答复: 答复: [外部邮件] Re: [PATCH] x86/mce: Fix timer interval adjustment after logging a MCE event

[Li,Rongqing]

> On Mon, Jan 12, 2026 at 09:36:21AM +0000, Li,Rongqing wrote:
> > Ok, I will add more explanation, and rename mce_notify_irq() as
> > mce_notify_user();
> 
> No, first you should explain what you're fixing here and why.
> 
> --
> Regards/Gruss,
>     Boris.
> 

How about modifying the changelog as follows


    x86/mce: Fix timer interval adjustment after logging a MCE event

    Since commit 011d82611172 ("RAS: Add a Corrected Errors Collector"),
    mce_timer_fn() has incorrectly determined whether to adjust the
    timer interval. The issue arises because mce_notify_irq() now always
    returns false when called from the timer path, since the polling code
    never sets bit 0 of mce_need_notify. This prevents proper adjustment of
    the timer interval based on whether MCE events were logged.

    The mce_notify_irq() is called from two contexts:
    1. Early notifier block - correctly sets mce_need_notify
    2. Timer function - never sets mce_need_notify, making it a noop
       (though logged errors are still processed through mce_log()->
        x86_mce_decoder_chain -> early notifier).

    Fix this by modifying machine_check_poll() to return a boolean indicating
    whether any MCE was logged, and updating mc_poll_banks() and related
    functions to propagate this return value. Then, mce_timer_fn() can use
    this direct return value instead of relying on mce_notify_irq() for
    timer interval decisions.

    This ensures the timer interval is correctly reduced when MCE events are
    logged and increased when no events occur.

    Fixes: 011d82611172 ("RAS: Add a Corrected Errors Collector")
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