RE: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery

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To: Borislav Petkov <bp@xxxxxxxxx>
Subject: RE: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
From: "Luck, Tony" <tony.luck@xxxxxxxxx>
Date: Tue, 2 Feb 2021 22:12:06 +0000
Accept-language: en-US
Cc: "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, "Darren Hart" <dvhart@xxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-edac@xxxxxxxxxxxxxxx" <linux-edac@xxxxxxxxxxxxxxx>, "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>
Dlp-product: dlpe-windows
Dlp-reaction: no-action
Dlp-version: 11.5.1.3
In-reply-to: <20210202210600.GF18075@zn.tnic>
References: <20210119235759.GA9970@agluck-desk2.amr.corp.intel.com> <20210120121812.GF825@zn.tnic> <20210121210959.GA10304@agluck-desk2.amr.corp.intel.com> <20210125225509.GA7149@agluck-desk2.amr.corp.intel.com> <20210126110314.GC6514@zn.tnic> <20210126223605.GA14355@agluck-desk2.amr.corp.intel.com> <20210128175735.GB2120@zn.tnic> <20210201185812.GA54867@agluck-desk2.amr.corp.intel.com> <20210202110126.GB18075@zn.tnic> <d99c43608909400199e9384bb7425beb@intel.com> <20210202210600.GF18075@zn.tnic>

> So that "system hang or panic" which the validation folks triggered,
> that cannot be reproduced anymore? Did they run the latest version of
> the patch?

I will get the validation folks to run the latest version (and play around with
hyperthreading if they see problems).

-Tony

References:
- Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Luck, Tony
- Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Borislav Petkov
- Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Luck, Tony
- [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Luck, Tony
- Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Borislav Petkov
- Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Luck, Tony
- Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Borislav Petkov
- Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Luck, Tony
- Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Borislav Petkov
- RE: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Luck, Tony
- Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery
  - From: Borislav Petkov

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