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Date: Fri, 12 Nov 2021 13:24:37 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: "Eric W. Biederman" <ebiederm@...ssion.com> Cc: Brian Gerst <brgerst@...il.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Oleg Nesterov <oleg@...hat.com>, Al Viro <viro@...iv.linux.org.uk>, Kees Cook <keescook@...omium.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, "the arch/x86 maintainers" <x86@...nel.org>, H Peter Anvin <hpa@...or.com>, Andy Lutomirski <luto@...nel.org> Subject: Re: [PATCH 09/20] signal/vm86_32: Replace open coded BUG_ON with an actual BUG_ON On Fri, Nov 12, 2021 at 1:23 PM Linus Torvalds <torvalds@...ux-foundation.org> wrote: > > But I could see some quick test hack doing it - the IVT at boot is > actually not at zero, but at fffxxxxx. 8086 is magic. .. and it's been too long, and I'm too lazy to check - it may be that vm86 mode doesn't even do that magic boot-time address thing. It's not like we really care about vm86 mode any more, since pretty much nobody users it. Linus
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