Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery

[PATCH 0/2] Fix infinite machine check loop in futex_wait_setup() · Tony Luck <tony.luck@intel.com> · 2021-01-08
[PATCH 1/2] x86/mce: Avoid infinite loop for copy from user recovery · Tony Luck <tony.luck@intel.com> · 2021-01-08
[PATCH 2/2] futex, x86/mce: Avoid double machine checks · Tony Luck <tony.luck@intel.com> · 2021-01-08
Re: [PATCH 2/2] futex, x86/mce: Avoid double machine checks · Peter Zijlstra <peterz@infradead.org> · 2021-01-08
RE: [PATCH 2/2] futex, x86/mce: Avoid double machine checks · "Luck, Tony" <tony.luck@intel.com> · 2021-01-08
Re: [PATCH 2/2] futex, x86/mce: Avoid double machine checks · Peter Zijlstra <peterz@infradead.org> · 2021-01-08
RE: [PATCH 2/2] futex, x86/mce: Avoid double machine checks · "Luck, Tony" <tony.luck@intel.com> · 2021-01-08
[PATCH v2 0/3] Fix infinite machine check loop in futex_wait_setup() · Tony Luck <tony.luck@intel.com> · 2021-01-11
[PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Tony Luck <tony.luck@intel.com> · 2021-01-11
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Andy Lutomirski <luto@amacapital.net> · 2021-01-11
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-11
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Andy Lutomirski <luto@kernel.org> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Andy Lutomirski <luto@kernel.org> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Andy Lutomirski <luto@kernel.org> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Andy Lutomirski <luto@amacapital.net> · 2021-01-12
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-13
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Andy Lutomirski <luto@amacapital.net> · 2021-01-13
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-13
RE: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-13
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-13
RE: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-13
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-13
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-14
Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-14
[PATCH v2 2/3] x86/mce: Add new return value to get_user() for machine check · Tony Luck <tony.luck@intel.com> · 2021-01-11
[PATCH v2 3/3] futex, x86/mce: Avoid double machine checks · Tony Luck <tony.luck@intel.com> · 2021-01-11
Re: [PATCH v2 0/3] Fix infinite machine check loop in futex_wait_setup() · Andy Lutomirski <luto@kernel.org> · 2021-01-14
[PATCH v3] x86/mce: Avoid infinite loop for copy from user recovery · Tony Luck <tony.luck@intel.com> · 2021-01-15
Re: [PATCH v3] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-15
Re: [PATCH v3] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-15
[PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-15
Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-15
Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-19
Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-19
Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-20
RE: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-20
Re: [PATCH v4] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-21
[PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-25
Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-26
Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-01-27
Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-28
Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-02-01
Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-02-02
RE: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-02-02
Re: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-02-02
RE: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery · "Luck, Tony" <tony.luck@intel.com> · 2021-02-02
Re: [PATCH v3] x86/mce: Avoid infinite loop for copy from user recovery · Borislav Petkov <bp@alien8.de> · 2021-01-18

From: Borislav Petkov <bp@alien8.de>
Date: 2021-01-13 16:20:37
Also in: linux-mm, lkml

On Wed, Jan 13, 2021 at 04:06:09PM +0000, Luck, Tony wrote:

Maybe the other difference in approach between Andy and me is whether to
go for a solution that covers all the corner cases, or just make an incremental
improvement that allows for recover in some useful subset of remaining fatal
cases, but still dies in other cases.

Does that mean more core code surgery?

I'm happy to replace error messages with ones that are more descriptive and
helpful to humans.

Yap, that: "Multiple copyin" with something more understandable to users...

Thx.

-- 
Regards/Gruss,
    Boris.

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

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