From: Andy Lutomirski <luto@amacapital.net>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Sven Wegener" <sven.wegener@stealer.net>,
"Richard Weinberger" <richard@nod.at>, "X86 ML" <x86@kernel.org>,
"Eric Paris" <eparis@redhat.com>,
"Linux Kernel" <linux-kernel@vger.kernel.org>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Borislav Petkov" <bp@alien8.de>,
"Toralf Förster" <toralf.foerster@gmx.de>,
stable <stable@vger.kernel.org>,
"Roland McGrath" <roland@redhat.com>,
"Josh Boyer" <jwboyer@fedoraproject.org>
Subject: Re: [PATCH] x86_32, entry: store badsys error code in %eax
Date: Mon, 21 Jul 2014 10:23:25 -0700 [thread overview]
Message-ID: <CALCETrV-fy6cA3fx40V3fnEN5bXMnDkYi845oKLYWXhVu=zRjw@mail.gmail.com> (raw)
In-Reply-To: <53CD4BE8.5030603@zytor.com>
On Mon, Jul 21, 2014 at 10:20 AM, H. Peter Anvin <hpa@zytor.com> wrote:
> On 07/21/2014 09:53 AM, Andy Lutomirski wrote:
>> On Sun, Jul 20, 2014 at 3:07 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>>> This is not a subtle regression at all. It is in fact a very very serious one.
>>
>> Indeed.
>>
>> Does this really work correctly on sysenter? It sure looks like the
>> sysenter path has the same problem.
>>
>> Grr. I'm not set up to properly test 32-bit kernels. The patch looks
>> correct, but I'm obviously not an infallible authority on "looking
>> correct" when it comes to entry_32.S.
>>
>> --Andy
>>
>
> KVM is great for that sort of things.
This may finally inspire me to teach virtme how to boot an alternate
root. I got sick of dealing with VM images awhile ago.
--Andy
>
> -hpa
>
>
--
Andy Lutomirski
AMA Capital Management, LLC
next prev parent reply other threads:[~2014-07-21 17:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-20 21:33 [PATCH] x86_32, entry: store badsys error code in %eax Sven Wegener
2014-07-20 22:07 ` H. Peter Anvin
2014-07-21 16:53 ` Andy Lutomirski
2014-07-21 17:20 ` H. Peter Anvin
2014-07-21 17:23 ` Andy Lutomirski [this message]
2014-07-21 21:59 ` Andy Lutomirski
2014-07-22 6:57 ` Sven Wegener
2014-07-22 8:26 Sven Wegener
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