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Date:   Mon, 8 Feb 2021 19:20:09 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     "Yu, Yu-cheng" <yu-cheng.yu@intel.com>
Cc:     x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
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        Dave Hansen <dave.hansen@linux.intel.com>,
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        Randy Dunlap <rdunlap@infradead.org>,
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        Weijiang Yang <weijiang.yang@intel.com>,
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        Michael Kerrisk <mtk.manpages@gmail.com>
Subject: Re: [PATCH v19 06/25] x86/cet: Add control-protection fault handler
Message-ID: <20210208182009.GE18227@zn.tnic>
References: <20210203225547.32221-1-yu-cheng.yu@intel.com>
 <20210203225547.32221-7-yu-cheng.yu@intel.com>
 <20210205135927.GH17488@zn.tnic>
 <2d829cba-784e-635a-e0c5-a7b334fa9b40@intel.com>
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On Fri, Feb 05, 2021 at 10:00:21AM -0800, Yu, Yu-cheng wrote:
> The ratelimit here is only for #CP, and its rate is not counted together
> with other types of faults.  If a task gets here, it will exit.  The only
> condition the ratelimit will trigger is when multiple tasks hit #CP at once,
> which is unlikely.  Are you suggesting that we do not need the ratelimit
> here?

I'm trying to first find out why is it there.

Is this something you've hit during testing and thought, oh well, this
needs a ratelimit or was it added just because?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette