From: Greg KH <gregkh@linuxfoundation.org>
To: Ben Hutchings <ben.hutchings@codethink.co.uk>
Cc: Michal Hocko <mhocko@kernel.org>,
stable@vger.kernel.org, aarcange@redhat.com,
akpm@linux-foundation.org, jannh@google.com, jgg@mellanox.com,
oleg@redhat.com, peterx@redhat.com, rppt@linux.ibm.com,
torvalds@linux-foundation.org, stable-commits@vger.kernel.org
Subject: Re: Patch "coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping" has been added to the 4.4-stable tree
Date: Thu, 6 Jun 2019 17:34:24 +0200 [thread overview]
Message-ID: <20190606153424.GA29314@kroah.com> (raw)
In-Reply-To: <1559736528.24330.87.camel@codethink.co.uk>
On Wed, Jun 05, 2019 at 01:08:48PM +0100, Ben Hutchings wrote:
> On Wed, 2019-06-05 at 08:50 +0200, Michal Hocko wrote:
> > On Tue 04-06-19 16:51:38, Ben Hutchings wrote:
> > [...]
> > > - I don't understand why collapse_huge_range() needs to be fixed, but
> > > then I really don't understand the khugepaged code at all! So I would
> > > trust Michal on this.
> >
> > To be honest, I am not really sure myself here. But we are using a
> > remote mm there and I do not see anything that would prevent from racing
> > with exit/coredump. Maybe I am wrong. Let's wait for Andrea for his
> > review feedback. This patch is quite tricky for the stable backport.
>
> So, Greg, it seems like you should drop this from the current stable
> round.
Ok, will do, thanks.
greg k-h
prev parent reply other threads:[~2019-06-06 15:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <155965961313615@kroah.com>
[not found] ` <20190604145216.GJ4669@dhcp22.suse.cz>
2019-06-04 15:07 ` Patch "coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping" has been added to the 4.4-stable tree Greg KH
2019-06-04 15:51 ` Ben Hutchings
2019-06-05 6:50 ` Michal Hocko
2019-06-05 12:08 ` Ben Hutchings
2019-06-06 15:34 ` Greg KH [this message]
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=20190606153424.GA29314@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=ben.hutchings@codethink.co.uk \
--cc=jannh@google.com \
--cc=jgg@mellanox.com \
--cc=mhocko@kernel.org \
--cc=oleg@redhat.com \
--cc=peterx@redhat.com \
--cc=rppt@linux.ibm.com \
--cc=stable-commits@vger.kernel.org \
--cc=stable@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/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).