From: Linus Torvalds <linus@torvalds.org>
To: speck@linutronix.de
Subject: [MODERATED] Re: [PATCH v5 22/27] MDSv5 24
Date: Tue, 22 Jan 2019 10:24:46 +1300 [thread overview]
Message-ID: <CAHk-=wh68kd61b5oAAr1r6WY5gObwXc+xHoiSpt2zoGZAr5tMg@mail.gmail.com> (raw)
In-Reply-To: <5fc3209d2880402d332ec93cf076467b3706a401.1547858934.git.ak@linux.intel.com>
On Tue, Jan 22, 2019 at 8:57 AM speck for Andi Kleen
<speck@linutronix.de> wrote:
>
> Instrument some strategic skbuff functions that either touch
> packet data directly, or are likely followed by a user
> data touch like a memcpy, to schedule a cpu clear on next
> kernel exit.
I think this is crazy.
We're marking things as "clear cpu state" for when we touch data that
WAS VISIBLE ON THE NETWORK!
That makes no sense to me. Plus is likely hurts exactly the kinds of
loads that people don't want to hurt.
Linus
next prev parent reply other threads:[~2019-01-21 21:25 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-19 0:50 [MODERATED] [PATCH v5 00/27] MDSv5 19 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 01/27] MDSv5 26 Andi Kleen
2019-01-22 4:17 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:46 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 02/27] MDSv5 14 Andi Kleen
2019-01-22 4:20 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:51 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 03/27] MDSv5 16 Andi Kleen
2019-01-22 4:23 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:55 ` Thomas Gleixner
2019-01-27 21:58 ` Thomas Gleixner
2019-01-28 3:30 ` [MODERATED] " Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 04/27] MDSv5 15 Andi Kleen
2019-01-22 4:33 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 12:59 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 05/27] MDSv5 21 Andi Kleen
2019-01-22 4:35 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 13:01 ` Thomas Gleixner
2019-02-21 12:06 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 06/27] MDSv5 18 Andi Kleen
2019-01-21 22:41 ` [MODERATED] " Josh Poimboeuf
2019-01-22 1:16 ` Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 07/27] MDSv5 0 Andi Kleen
2019-01-22 4:39 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-27 22:09 ` Thomas Gleixner
2019-01-28 3:33 ` [MODERATED] " Andi Kleen
2019-01-28 8:29 ` Thomas Gleixner
2019-02-13 22:26 ` [MODERATED] " Tyler Hicks
2019-01-19 0:50 ` [MODERATED] [PATCH v5 08/27] MDSv5 13 Andi Kleen
2019-01-22 4:40 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19 0:50 ` [MODERATED] [PATCH v5 09/27] MDSv5 23 Andi Kleen
2019-01-22 4:56 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 7:26 ` Greg KH
2019-01-22 13:07 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 10/27] MDSv5 7 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 11/27] MDSv5 2 Andi Kleen
2019-01-22 13:11 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 12/27] MDSv5 6 Andi Kleen
2019-01-22 14:01 ` Thomas Gleixner
2019-01-22 15:42 ` Thomas Gleixner
2019-01-22 18:01 ` [MODERATED] " Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 13/27] MDSv5 17 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 14/27] MDSv5 3 Andi Kleen
2019-01-22 4:48 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 15:58 ` Thomas Gleixner
2019-01-22 17:57 ` Thomas Gleixner
2019-01-23 1:35 ` [MODERATED] " Andi Kleen
2019-01-23 9:27 ` Thomas Gleixner
2019-01-23 16:02 ` [MODERATED] " Andi Kleen
2019-01-23 22:40 ` Josh Poimboeuf
2019-01-23 22:57 ` Josh Poimboeuf
2019-01-24 0:25 ` Josh Poimboeuf
2019-01-24 2:26 ` Andi Kleen
2019-01-24 12:04 ` Thomas Gleixner
2019-01-28 3:42 ` [MODERATED] " Andi Kleen
2019-01-28 8:33 ` Thomas Gleixner
2019-02-16 2:00 ` [MODERATED] " Andi Kleen
2019-02-16 10:32 ` Thomas Gleixner
2019-02-16 16:58 ` [MODERATED] " Andi Kleen
2019-02-16 17:12 ` Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 15/27] MDSv5 1 Andi Kleen
2019-01-22 4:48 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19 0:50 ` [MODERATED] [PATCH v5 16/27] MDSv5 10 Andi Kleen
2019-01-22 4:54 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-22 7:33 ` Greg KH
2019-01-19 0:50 ` [MODERATED] [PATCH v5 17/27] MDSv5 9 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 18/27] MDSv5 8 Andi Kleen
2019-01-22 5:07 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19 0:50 ` [MODERATED] [PATCH v5 19/27] MDSv5 12 Andi Kleen
2019-01-22 5:09 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19 0:50 ` [MODERATED] [PATCH v5 20/27] MDSv5 27 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 21/27] MDSv5 20 Andi Kleen
2019-01-22 5:11 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19 0:50 ` [MODERATED] [PATCH v5 22/27] MDSv5 24 Andi Kleen
2019-01-21 21:24 ` Linus Torvalds [this message]
2019-01-22 1:22 ` [MODERATED] " Andi Kleen
2019-01-22 16:09 ` Thomas Gleixner
2019-01-22 17:56 ` [MODERATED] " Andi Kleen
2019-01-22 18:56 ` Thomas Gleixner
2019-01-23 1:39 ` [MODERATED] " Andi Kleen
2019-01-23 6:39 ` Greg KH
2019-01-24 9:55 ` Thomas Gleixner
2019-01-19 0:50 ` [MODERATED] [PATCH v5 23/27] MDSv5 22 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 24/27] MDSv5 5 Andi Kleen
2019-01-21 21:20 ` [MODERATED] " Linus Torvalds
2019-01-19 0:50 ` [MODERATED] [PATCH v5 25/27] MDSv5 4 Andi Kleen
2019-01-22 5:15 ` [MODERATED] " Konrad Rzeszutek Wilk
2019-01-19 0:50 ` [MODERATED] [PATCH v5 26/27] MDSv5 11 Andi Kleen
2019-01-19 0:50 ` [MODERATED] [PATCH v5 27/27] MDSv5 25 Andi Kleen
2019-01-21 21:18 ` [MODERATED] Re: [PATCH v5 00/27] MDSv5 19 Linus Torvalds
2019-01-22 1:14 ` Andi Kleen
2019-01-22 7:38 ` Greg KH
2019-01-28 11:34 ` Thomas Gleixner
2019-02-13 22:33 ` [MODERATED] " Tyler Hicks
2019-02-14 13:09 ` Jiri Kosina
2019-02-14 13:51 ` Greg KH
2019-02-14 16:53 ` Andi Kleen
2019-02-14 18:00 ` Greg KH
2019-02-14 18:05 ` Andrew Cooper
2019-02-14 18:33 ` Andi Kleen
2019-02-14 18:52 ` Greg KH
2019-02-14 19:50 ` Andi Kleen
2019-02-15 7:06 ` Greg KH
2019-02-15 13:06 ` Andi Kleen
2019-02-19 12:12 ` Greg KH
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