All of lore.kernel.org
 help / color / mirror / Atom feed
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Ben Hutchings <ben@decadent.org.uk>, Willy Tarreau <w@1wt.eu>,
	Oleg Nesterov <oleg@redhat.com>, Rik van Riel <riel@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-mm <linux-mm@kvack.org>, Michal Hocko <mhocko@suse.com>
Subject: Re: [PATCH] mm: mm, mmap: do not blow on PROT_NONE MAP_FIXED holes in the stack
Date: Wed, 5 Jul 2017 10:43:27 -0700	[thread overview]
Message-ID: <CA+55aFxxeCtZ-PBqrZK5K2nDjCFBWRMKE09Bz650ZiR2h=b8dg@mail.gmail.com> (raw)
In-Reply-To: <20170705165602.15005-1-mhocko@kernel.org>

On Wed, Jul 5, 2017 at 9:56 AM, Michal Hocko <mhocko@kernel.org> wrote:
>
> "mm: enlarge stack guard gap" has introduced a regression in some rust
> and Java environments which are trying to implement their own stack
> guard page.  They are punching a new MAP_FIXED mapping inside the
> existing stack Vma.

Hmm. What version is this patch against? It doesn't seem to match my 4.12 tree.

                 Linus

WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Ben Hutchings <ben@decadent.org.uk>, Willy Tarreau <w@1wt.eu>,
	Oleg Nesterov <oleg@redhat.com>, Rik van Riel <riel@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-mm <linux-mm@kvack.org>, Michal Hocko <mhocko@suse.com>
Subject: Re: [PATCH] mm: mm, mmap: do not blow on PROT_NONE MAP_FIXED holes in the stack
Date: Wed, 5 Jul 2017 10:43:27 -0700	[thread overview]
Message-ID: <CA+55aFxxeCtZ-PBqrZK5K2nDjCFBWRMKE09Bz650ZiR2h=b8dg@mail.gmail.com> (raw)
In-Reply-To: <20170705165602.15005-1-mhocko@kernel.org>

On Wed, Jul 5, 2017 at 9:56 AM, Michal Hocko <mhocko@kernel.org> wrote:
>
> "mm: enlarge stack guard gap" has introduced a regression in some rust
> and Java environments which are trying to implement their own stack
> guard page.  They are punching a new MAP_FIXED mapping inside the
> existing stack Vma.

Hmm. What version is this patch against? It doesn't seem to match my 4.12 tree.

                 Linus

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

  reply	other threads:[~2017-07-05 17:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-05 16:56 [PATCH] mm: mm, mmap: do not blow on PROT_NONE MAP_FIXED holes in the stack Michal Hocko
2017-07-05 16:56 ` Michal Hocko
2017-07-05 17:43 ` Linus Torvalds [this message]
2017-07-05 17:43   ` Linus Torvalds
2017-07-05 18:28   ` Michal Hocko
2017-07-05 18:28     ` Michal Hocko
2017-07-05 18:35     ` Linus Torvalds
2017-07-05 18:35       ` Linus Torvalds
2017-07-05 18:53       ` Michal Hocko
2017-07-05 18:53         ` Michal Hocko
2017-07-05 19:10         ` Michal Hocko
2017-07-05 19:10           ` Michal Hocko
2017-07-05 19:15         ` Linus Torvalds
2017-07-05 19:15           ` Linus Torvalds
2017-07-05 19:17           ` Willy Tarreau
2017-07-05 19:17             ` Willy Tarreau
2017-07-05 21:18     ` Andrew Morton
2017-07-05 21:18       ` Andrew Morton
2017-07-05 21:41       ` Linus Torvalds
2017-07-05 21:41         ` Linus Torvalds
2017-07-06  6:47       ` Michal Hocko
2017-07-06  6:47         ` Michal Hocko

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='CA+55aFxxeCtZ-PBqrZK5K2nDjCFBWRMKE09Bz650ZiR2h=b8dg@mail.gmail.com' \
    --to=torvalds@linux-foundation.org \
    --cc=akpm@linux-foundation.org \
    --cc=ben@decadent.org.uk \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mhocko@kernel.org \
    --cc=mhocko@suse.com \
    --cc=oleg@redhat.com \
    --cc=riel@redhat.com \
    --cc=vbabka@suse.cz \
    --cc=w@1wt.eu \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.