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From: Willy Tarreau <w@1wt.eu>
To: Sedat Dilek <sedat.dilek@gmail.com>
Cc: George Spelvin <lkml@sdf.org>, Amit Klein <aksecurity@gmail.com>,
	Eric Dumazet <edumazet@google.com>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	Andy Lutomirski <luto@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	netdev@vger.kernel.org
Subject: Re: [DRAFT PATCH] random32: make prandom_u32() output unpredictable
Date: Thu, 13 Aug 2020 10:06:46 +0200	[thread overview]
Message-ID: <20200813080646.GB10907@1wt.eu> (raw)
In-Reply-To: <CA+icZUXS2OPFuEkDC2oHDd344efkbAoq_oP0agqrvWD5FHDXGA@mail.gmail.com>

On Thu, Aug 13, 2020 at 09:53:11AM +0200, Sedat Dilek wrote:
> On Wed, Aug 12, 2020 at 5:21 AM Willy Tarreau <w@1wt.eu> wrote:
> >
> > On Tue, Aug 11, 2020 at 12:51:43PM +0200, Sedat Dilek wrote:
> > > Can you share this "rebased to mainline" version of George's patch?
> >
> > You can pick it from there if that helps, but keep in mind that
> > it's just experimental code that we use to explain our ideas and
> > that we really don't care a single second what kernel it's applied
> > to:
> >
> >    https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/cleanups.git/log/?h=20200811-prandom-1
> >
> 
> Thanks Willy.
> 
> I disagree: the base for testing should be clear(ly communicated).

It is. As you can see on the log above, this was applied on top of
fc80c51fd4b2, there's nothing special here. In addition we're not even
talking about testing nor calling for testers, just trying to find a
reasonable solution. Maybe today I'll be able to re-run a few tests by
the way.

> There are two diffs from Eric to #1: add a trace event for
> prandom_u32() and #2: a removal of prandom_u32() call in
> tcp_conn_request().
> In case you have not seen.

I've seen, just not had the time to test yet.

Willy

  reply	other threads:[~2020-08-13  8:07 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CA+icZUVnsmf1kXPYFYufStQ_MxnLuxL+EWfDS2wQy1VbAEMwkA@mail.gmail.com>
2020-08-09 21:10 ` [DRAFT PATCH] random32: make prandom_u32() output unpredictable Sedat Dilek
     [not found] ` <20200809235412.GD25124@SDF.ORG>
     [not found]   ` <20200810034948.GB8262@1wt.eu>
     [not found]     ` <20200811053455.GH25124@SDF.ORG>
     [not found]       ` <20200811054328.GD9456@1wt.eu>
     [not found]         ` <20200811062814.GI25124@SDF.ORG>
     [not found]           ` <20200811074538.GA9523@1wt.eu>
2020-08-11 10:51             ` Sedat Dilek
2020-08-11 11:01               ` Sedat Dilek
2020-08-12  3:21               ` Willy Tarreau
2020-08-13  7:53                 ` Sedat Dilek
2020-08-13  8:06                   ` Willy Tarreau [this message]
2020-08-13  8:13                     ` Sedat Dilek
2020-08-13  8:27                       ` Sedat Dilek
2020-08-13 14:00                         ` Eric Dumazet
2020-08-13 16:02                           ` Sedat Dilek
2020-08-14 15:32                     ` Sedat Dilek
2020-08-14 16:05                       ` Willy Tarreau
2020-08-14 16:17                         ` Sedat Dilek
2020-08-16 15:01                           ` Willy Tarreau
2020-08-16 16:48                             ` Sedat Dilek
2020-08-20  3:05                               ` Sedat Dilek
2020-08-20  4:33                                 ` Willy Tarreau
2020-08-20  4:42                                   ` Sedat Dilek
2020-08-20  6:08                                     ` Willy Tarreau
2020-08-20  6:58                                       ` Willy Tarreau
2020-08-20  8:05                                         ` Willy Tarreau
2020-08-20 12:08                                           ` Sedat Dilek
     [not found]                                           ` <CANEQ_+L+22Hkdqf38Zr0bfq16fcL1Ax2X9fToXV_niHKXCB8aA@mail.gmail.com>
2020-08-27  1:09                                             ` Willy Tarreau
2020-08-27  7:08                                               ` Sedat Dilek
2020-08-08 15:26 Flaw in "random32: update the net random state on interrupt and activity" George Spelvin
2020-08-09  6:57 ` [DRAFT PATCH] random32: make prandom_u32() output unpredictable George Spelvin
2020-08-09  9:38   ` Willy Tarreau
2020-08-09 17:06     ` George Spelvin
2020-08-09 17:33       ` Willy Tarreau
2020-08-09 18:30         ` George Spelvin
2020-08-09 19:16           ` Willy Tarreau
2020-08-10 11:47           ` Willy Tarreau
2020-08-10 12:01             ` David Laight
2020-08-10 14:48               ` Willy Tarreau
2020-08-10 12:03             ` Florian Westphal
2020-08-10 14:53               ` Willy Tarreau
2020-08-10 16:31             ` Linus Torvalds
2020-08-10 16:58               ` Willy Tarreau
2020-08-10 17:45                 ` Linus Torvalds
2020-08-10 18:01                   ` Willy Tarreau
2020-08-10 21:04                   ` Willy Tarreau
2020-08-11  5:26                     ` George Spelvin
2020-08-11  5:37                       ` Willy Tarreau
2020-08-11  3:47             ` George Spelvin
2020-08-11  3:58               ` Willy Tarreau
     [not found]     ` <fdbc7d7d-cba2-ef94-9bde-b3ccae0cfaac@gmail.com>
2020-08-09 21:10       ` Marc Plumb
2020-08-09 21:48         ` Linus Torvalds
2020-08-09 13:50   ` Randy Dunlap
     [not found]   ` <CANEQ_++a4YcwQQ2XhuguTono9=RxbSRVsMw08zLWBWJ_wxG2AQ@mail.gmail.com>
2020-08-09 16:08     ` George Spelvin

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