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From: Borislav Petkov <bp@alien8.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Brian Gerst <brgerst@gmail.com>, X86 ML <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Tom Lendacky <thomas.lendacky@amd.com>
Subject: Re: [RFC PATCH] x86: Make sure verify_cpu has a good stack
Date: Thu, 3 Mar 2016 21:54:37 +0100	[thread overview]
Message-ID: <20160303205437.GA13505@pd.tnic> (raw)
In-Reply-To: <56D89CEE.9070406@zytor.com>

On Thu, Mar 03, 2016 at 12:22:06PM -0800, H. Peter Anvin wrote:
> The only thing I can think of is that the -8 creates a null pointer that
> terminates a stack trace.

Probably not needed anymore as print_context_stack()->valid_stack_ptr()
in dumpstack.c look at the stack boundaries instead of checking for
NULL...

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.

  reply	other threads:[~2016-03-03 20:54 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-02 11:20 [RFC PATCH] x86: Make sure verify_cpu has a good stack Borislav Petkov
2016-03-02 15:55 ` Mika Penttilä
2016-03-02 16:15   ` Borislav Petkov
2016-03-02 16:38     ` Mika Penttilä
2016-03-02 16:55       ` Borislav Petkov
2016-03-02 17:44         ` Mika Penttilä
2016-03-02 16:22 ` Brian Gerst
2016-03-02 16:25   ` Borislav Petkov
2016-03-02 17:53     ` H. Peter Anvin
2016-03-02 18:15       ` Borislav Petkov
2016-03-02 18:25         ` H. Peter Anvin
2016-03-02 18:39         ` H. Peter Anvin
2016-03-02 19:50           ` Borislav Petkov
2016-03-02 20:46             ` Borislav Petkov
2016-03-02 21:35             ` H. Peter Anvin
2016-03-02 21:46               ` Borislav Petkov
2016-03-02 21:54                 ` H. Peter Anvin
2016-03-02 22:09                   ` Borislav Petkov
2016-03-02 22:11                     ` H. Peter Anvin
2016-03-02 22:28                       ` Borislav Petkov
2016-03-02 22:32                         ` H. Peter Anvin
2016-03-02 22:40                           ` Borislav Petkov
2016-03-03  0:13                           ` Yinghai Lu
2016-03-03  1:00                             ` Yinghai Lu
2016-03-03  2:50                               ` Yinghai Lu
2016-03-03 12:28                           ` Borislav Petkov
2016-03-03 15:26                             ` H. Peter Anvin
2016-03-03 16:29                               ` Borislav Petkov
2016-03-03 20:22                                 ` H. Peter Anvin
2016-03-03 20:54                                   ` Borislav Petkov [this message]
2016-03-03 21:22                                     ` H. Peter Anvin
2016-03-03 21:38                                       ` Borislav Petkov
2016-03-04  1:18                             ` Yinghai Lu
2016-03-04  2:25                             ` Yinghai Lu

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