linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Pavel Emelyanov <xemul@parallels.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Sasha Levin <sasha.levin@oracle.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Jones <davej@redhat.com>
Subject: Re: mm: NULL ptr deref handling mmaping of special mappings
Date: Mon, 19 May 2014 12:40:22 +0400	[thread overview]
Message-ID: <20140519084022.GC2185@moon> (raw)
In-Reply-To: <5379C071.4090100@parallels.com>

On Mon, May 19, 2014 at 12:27:29PM +0400, Pavel Emelyanov wrote:
> > 
> > What happens if you try to checkpoint a program that's in the vdso or,
> > worse, in a signal frame with the vdso on the stack?
> 
> Nothing good, unfortunately :( And this is one of the things we're investigating.
> Cyrill can shed more light on it, as he's the one in charge.

vdso on stack should not be a big deal, because we keep original vdso proxy.

  reply	other threads:[~2014-05-19  8:40 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-14 15:55 mm: NULL ptr deref handling mmaping of special mappings Sasha Levin
2014-05-14 20:23 ` Andrew Morton
2014-05-14 20:41   ` Sasha Levin
2014-05-14 21:03     ` Andrew Morton
2014-05-14 21:11       ` Sasha Levin
2014-05-14 21:31         ` Andrew Morton
2014-05-14 21:33           ` Andy Lutomirski
2014-05-14 22:11             ` Cyrill Gorcunov
2014-05-14 22:23               ` Andy Lutomirski
2014-05-15  2:36                 ` Pavel Emelyanov
2014-05-15 19:42                   ` Andy Lutomirski
2014-05-19  8:27                     ` Pavel Emelyanov
2014-05-19  8:40                       ` Cyrill Gorcunov [this message]
2014-05-15  8:45                 ` Cyrill Gorcunov
2014-05-15 19:46                   ` Andy Lutomirski
2014-05-15 19:53                     ` Cyrill Gorcunov
2014-05-15 19:59                       ` Andy Lutomirski
2014-05-15 20:19                         ` Cyrill Gorcunov
2014-05-15 21:31                           ` Cyrill Gorcunov
2014-05-15 21:42                             ` Andy Lutomirski
2014-05-15 21:57                               ` Cyrill Gorcunov
2014-05-15 22:15                                 ` Andy Lutomirski
2014-05-16 22:40                                   ` Andy Lutomirski
2014-05-16 22:56                                     ` H. Peter Anvin
2014-05-17  6:15                                     ` Cyrill Gorcunov
2014-05-14 22:51           ` Andy Lutomirski
2014-05-14 21:26       ` Andy Lutomirski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20140519084022.GC2185@moon \
    --to=gorcunov@gmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=davej@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=luto@amacapital.net \
    --cc=sasha.levin@oracle.com \
    --cc=xemul@parallels.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).