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.
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WARNING: multiple messages have this Message-ID (diff)
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.
next prev parent reply other threads:[~2014-05-19 8:40 UTC|newest]
Thread overview: 55+ 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 15:55 ` Sasha Levin
2014-05-14 20:23 ` Andrew Morton
2014-05-14 20:23 ` Andrew Morton
2014-05-14 20:41 ` Sasha Levin
2014-05-14 20:41 ` Sasha Levin
2014-05-14 21:03 ` Andrew Morton
2014-05-14 21:03 ` Andrew Morton
2014-05-14 21:11 ` Sasha Levin
2014-05-14 21:11 ` Sasha Levin
2014-05-14 21:31 ` Andrew Morton
2014-05-14 21:31 ` Andrew Morton
2014-05-14 21:33 ` Andy Lutomirski
2014-05-14 21:33 ` Andy Lutomirski
2014-05-14 22:11 ` Cyrill Gorcunov
2014-05-14 22:11 ` Cyrill Gorcunov
2014-05-14 22:23 ` Andy Lutomirski
2014-05-14 22:23 ` Andy Lutomirski
2014-05-15 2:36 ` Pavel Emelyanov
2014-05-15 2:36 ` Pavel Emelyanov
2014-05-15 19:42 ` Andy Lutomirski
2014-05-15 19:42 ` Andy Lutomirski
2014-05-19 8:27 ` Pavel Emelyanov
2014-05-19 8:27 ` Pavel Emelyanov
2014-05-19 8:40 ` Cyrill Gorcunov [this message]
2014-05-19 8:40 ` Cyrill Gorcunov
2014-05-15 8:45 ` Cyrill Gorcunov
2014-05-15 8:45 ` Cyrill Gorcunov
2014-05-15 19:46 ` Andy Lutomirski
2014-05-15 19:46 ` Andy Lutomirski
2014-05-15 19:53 ` Cyrill Gorcunov
2014-05-15 19:53 ` Cyrill Gorcunov
2014-05-15 19:59 ` Andy Lutomirski
2014-05-15 19:59 ` Andy Lutomirski
2014-05-15 20:19 ` Cyrill Gorcunov
2014-05-15 20:19 ` Cyrill Gorcunov
2014-05-15 21:31 ` Cyrill Gorcunov
2014-05-15 21:31 ` Cyrill Gorcunov
2014-05-15 21:42 ` Andy Lutomirski
2014-05-15 21:42 ` Andy Lutomirski
2014-05-15 21:57 ` Cyrill Gorcunov
2014-05-15 21:57 ` Cyrill Gorcunov
2014-05-15 22:15 ` Andy Lutomirski
2014-05-15 22:15 ` Andy Lutomirski
2014-05-16 22:40 ` Andy Lutomirski
2014-05-16 22:40 ` Andy Lutomirski
2014-05-16 22:56 ` H. Peter Anvin
2014-05-16 22:56 ` H. Peter Anvin
2014-05-16 23:10 ` Andy Lutomirski
2014-05-17 6:15 ` Cyrill Gorcunov
2014-05-17 6:15 ` Cyrill Gorcunov
2014-05-14 22:51 ` Andy Lutomirski
2014-05-14 22:51 ` Andy Lutomirski
2014-05-14 21:26 ` Andy Lutomirski
2014-05-14 21:26 ` Andy Lutomirski
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