ksummit.lists.linux.dev archive mirror
 help / color / mirror / Atom feed
From: "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
To: Alex Shi <alex.shi@linaro.org>
Cc: "ltsi-dev@lists.linuxfoundation.org"
	<ltsi-dev@lists.linuxfoundation.org>,
	ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [Stable kernel] feature backporting collaboration
Date: Wed, 21 Sep 2016 17:33:41 +0200	[thread overview]
Message-ID: <20160921153341.GA25677@kroah.com> (raw)
In-Reply-To: <57E2A5E3.4080407@linaro.org>

On Wed, Sep 21, 2016 at 11:23:15PM +0800, Alex Shi wrote:
> On 09/21/2016 09:56 PM, Theodore Ts'o wrote:
> Yes, personally, I also keep using latest kernel on my laptop. But as to
> a released product, could you let me know data center will ship to other
> as product?

My cloud provider keeps updating the kernel of my virtual machines to
the latest upstream stable releases all the time.  If yours doesn't, I
suggest you get a better provider.

> Or which enterprise distro kernel keep rebasing to upstream?

Both SuSE and Oracle do this for their releases.

> Most of product need team work, like mobile phone, include kernel,
> libraries, user APP, the software number is tremendous.

Why would updating a new kernel require userspace changes in these
things?  Kernels are always forward compatible, minus random driver bugs
for crazy subsystems (drm does have some problems at times as people do
point out.)

> Thus base layer software update need long time testing for
> compatibility and stability.

Why isn't that happening constantly?  Why wait a few years to do this
for new versions?  Why is the test frameworks that people have not
always churning away at this type of thing to find our bugs as soon as
possible?

> Then rebasing to upstream is too luxury to them.

Then they end up with a kernel, and a product, that is insecure and
vulnerable when it ships.  Not a good thing for something people trust
personal data to...

thanks,

greg k-h

  reply	other threads:[~2016-09-21 15:33 UTC|newest]

Thread overview: 122+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-01  2:01 Alex Shi
2016-09-02  1:25 ` Levin, Alexander
2016-09-02  2:43   ` Stephen Hemminger
2016-09-02  9:59     ` Mark Brown
2016-09-02  9:54   ` Mark Brown
2016-09-02 10:16     ` [Ksummit-discuss] [LTSI-dev] " Geert Uytterhoeven
2016-09-02 14:42     ` [Ksummit-discuss] " James Bottomley
2016-09-02 14:55       ` Rik van Riel
2016-09-02 15:04         ` James Bottomley
2016-09-02 15:39           ` Rik van Riel
2016-09-02 17:06       ` Bird, Timothy
2016-09-05  1:45         ` NeilBrown
2016-09-05 11:04           ` Mark Brown
2016-09-05 22:44             ` NeilBrown
2016-09-06  0:57               ` Mark Brown
2016-09-06  5:41                 ` NeilBrown
2016-09-08 18:33               ` [Ksummit-discuss] [LTSI-dev] " Bird, Timothy
2016-09-08 22:38                 ` NeilBrown
2016-09-09 11:01                   ` Mark Brown
2016-09-09 22:17                     ` NeilBrown
2016-09-12 17:37                       ` Mark Brown
2016-09-13  7:46                         ` NeilBrown
2016-09-13 17:53                           ` Mark Brown
2016-09-02 18:21       ` [Ksummit-discuss] " Olof Johansson
2016-09-02 23:35         ` Mark Brown
2016-09-03  5:29         ` Guenter Roeck
2016-09-03 10:40           ` Mark Brown
2016-09-04  0:10         ` Theodore Ts'o
2016-09-04  8:34           ` gregkh
2016-09-04 22:58           ` Amit Kucheria
2016-09-04 23:51             ` Theodore Ts'o
2016-09-05 12:58               ` Mark Brown
2016-09-05 11:11             ` Mark Brown
2016-09-05 14:03               ` Theodore Ts'o
2016-09-05 14:22                 ` Laurent Pinchart
2016-09-06  0:35                   ` Mark Brown
2016-09-06 15:30                     ` James Bottomley
2016-09-06 19:44                       ` gregkh
2016-09-06 22:20                         ` Mark Brown
2016-09-06 22:34                           ` James Bottomley
2016-09-08 18:55                             ` Bird, Timothy
2016-09-08 19:19                               ` gregkh
2016-09-09 10:45                                 ` Mark Brown
2016-09-09 11:03                                   ` gregkh
2016-09-09 11:48                                     ` Mark Brown
2016-09-06 23:23                       ` Mark Brown
2016-09-06 13:34                   ` Catalin Marinas
2016-09-06 16:24                     ` Bartlomiej Zolnierkiewicz
2016-09-06 16:25                     ` Guenter Roeck
2016-09-06 22:39                       ` Mark Brown
2016-09-07  8:33                       ` Jan Kara
2016-09-07  8:41                         ` Jiri Kosina
2016-09-07 18:44                           ` Mark Brown
2016-09-08 17:06                             ` Frank Rowand
2016-09-09 10:32                               ` Mark Brown
2016-09-09 15:21                         ` Alex Shi
2016-09-12 15:34                         ` Christoph Hellwig
2016-09-06 16:46                     ` Olof Johansson
2016-09-08  8:34                       ` Linus Walleij
2016-09-08  8:55                         ` Vinod Koul
2016-09-09 14:32                           ` Rob Herring
2016-09-09 14:23                         ` Rob Herring
     [not found]                     ` <2181684.5VzIQ6DWv4@amdc1976>
2016-09-07  9:32                       ` Catalin Marinas
2016-09-07 13:07                         ` Bartlomiej Zolnierkiewicz
2016-09-07 18:49                         ` Mark Brown
2016-09-09 15:06                         ` Alex Shi
2016-09-02 23:29       ` Mark Brown
2016-09-02 19:16     ` Levin, Alexander
2016-09-03  0:05       ` Mark Brown
2016-09-05  9:28         ` Laurent Pinchart
2016-09-21  6:58           ` Alex Shi
2016-09-21  9:23             ` gregkh
2016-09-21 14:52               ` Alex Shi
2016-09-21 15:28                 ` gregkh
2016-09-21 18:50                   ` Mark Brown
2016-09-22  3:15                   ` Alex Shi
2016-09-21 18:22               ` Mark Brown
2016-09-21 18:54                 ` Linus Walleij
2016-09-21 19:52                 ` Theodore Ts'o
2016-09-22  0:43                   ` Mark Brown
2016-09-22  5:20                 ` gregkh
2016-09-22 12:56                 ` Laurent Pinchart
2016-09-22 16:22                   ` Mark Brown
2016-09-22 22:14                     ` Theodore Ts'o
2016-09-23 12:28                       ` Laurent Pinchart
2016-09-23 13:27                         ` [Ksummit-discuss] [LTSI-dev] " Alex Shi
2016-09-23 13:40                           ` Laurent Pinchart
2016-09-23 14:40                       ` [Ksummit-discuss] " Mark Brown
2016-09-21 13:56             ` Theodore Ts'o
2016-09-21 15:23               ` Alex Shi
2016-09-21 15:33                 ` gregkh [this message]
2016-09-21 19:16                   ` Mark Brown
2016-09-02 13:47 ` Theodore Ts'o
2016-09-02 19:31   ` Levin, Alexander
2016-09-02 19:42     ` gregkh
2016-09-02 20:06       ` Levin, Alexander
2016-09-03  2:04   ` Mark Brown
2016-09-06  7:20   ` [Ksummit-discuss] [LTSI-dev] " Tsugikazu Shibata
2016-09-10 12:00     ` Theodore Ts'o
2016-09-12 16:27       ` Mark Brown
2016-09-12 17:14         ` Greg KH
2016-09-12 23:45           ` Mark Brown
2016-09-13  3:14             ` Theodore Ts'o
2016-09-13 10:14               ` Mark Brown
2016-09-13 13:19               ` Levin, Alexander
2016-09-13  6:19             ` Greg KH
2016-09-13 10:38               ` Mark Brown
2016-09-13 12:09                 ` Greg KH
2016-09-13 12:20                   ` Josh Boyer
2016-09-13 13:12                     ` Greg KH
2016-09-13 16:23                       ` Bird, Timothy
2016-09-13 19:02                       ` Mark Brown
2016-09-14 14:47                       ` Alex Shi
2016-09-20  5:15                       ` Tsugikazu Shibata
2016-09-21  8:46                         ` Alex Shi
2016-09-13 12:25                 ` Geert Uytterhoeven
2016-09-13 19:21                   ` Mark Brown
2016-09-14  1:49                     ` Greg KH
2016-09-14  3:00                       ` Guenter Roeck
2016-09-12  4:12     ` Alex Shi
2016-09-12 16:09       ` Masami Hiramatsu
2016-09-13  2:39         ` Alex Shi

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=20160921153341.GA25677@kroah.com \
    --to=gregkh@linuxfoundation.org \
    --cc=alex.shi@linaro.org \
    --cc=ksummit-discuss@lists.linuxfoundation.org \
    --cc=ltsi-dev@lists.linuxfoundation.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