linux-kernel - Re: [PATCH v2 0/4] x86: sigcontext fixes, again

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Message-ID: <CA+55aFw9YAcNZDSStidcq8r-Fn7OqMMScrM6Pf=XOmBSC1aq2Q@mail.gmail.com>
Date:	Wed, 28 Oct 2015 07:37:50 +0900
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Stas Sergeev <stsp@...t.ru>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Toshi Kani <toshi.kani@...com>, Ingo Molnar <mingo@...nel.org>
Cc:	Andy Lutomirski <luto@...capital.net>,
	Andy Lutomirski <luto@...nel.org>, X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Brian Gerst <brgerst@...il.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Stas Sergeev <stsp@...rs.sourceforge.net>
Subject: Re: [PATCH v2 0/4] x86: sigcontext fixes, again

On Tue, Oct 27, 2015 at 11:05 PM, Stas Sergeev <stsp@...t.ru> wrote:
>
> I can't easily post an Oops: under X it doesn't even appear -
> machine freezes immediately, and under non-KMS console it is
> possible to get one, but difficult to screen-shot (using bare
> metal, not VM). Also the Oops was seemingly unrelated.
> And if you run "dosemu -s" under non-KMS console, you'll also
> reproduce this one:
> https://bugzilla.kernel.org/show_bug.cgi?id=97321

Hmm. Andrew Morton responded to that initially, but then nothing
happened, and now it's been another six months. Andrew?

The arch/x86/mm/pat.c error handling does seem to be suspect. This is
all code several years old, so none of this is new, and I think Suresh
is gone.  Adding a few other people with recent sign-offs to that
file, in the hope that somebody feels like they own it..

               Linus
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