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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Dinh Nguyen <dinguyen@kernel.org>, Nick Hu <nickhu@andestech.com>,
	Max Filippov <jcmvbkbc@gmail.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	"David S . Miller" <davem@davemloft.net>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Michal Simek <monstr@monstr.eu>, Borislav Petkov <bp@alien8.de>,
	Guo Ren <guoren@kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Joshua Kinard <kumba@gentoo.org>,
	David Laight <David.Laight@aculab.com>,
	Dominik Brodowski <linux@dominikbrodowski.net>,
	Eric Biggers <ebiggers@google.com>,
	Ard Biesheuvel <ardb@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andy Lutomirski <luto@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Lennart Poettering <mzxreary@0pointer.de>,
	Konstantin Ryabitsev <konstantin@linuxfoundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Theodore Ts'o" <tytso@mit.edu>
Subject: Re: [PATCH v1] random: block in /dev/urandom
Date: Tue, 22 Mar 2022 09:21:20 -0700	[thread overview]
Message-ID: <CAHk-=wjH7rNyP_S7ut3EUPfa_dOYAP1T6yOxS6hdVi3zPV9SzA@mail.gmail.com> (raw)
In-Reply-To: <20220322155820.GA1745955@roeck-us.net>

On Tue, Mar 22, 2022 at 8:58 AM Guenter Roeck <linux@roeck-us.net> wrote:
>
> This patch (or a later version of it) made it into mainline and causes a
> large number of qemu boot test failures for various architectures (arm,
> m68k, microblaze, sparc32, xtensa are the ones I observed). Common
> denominator is that boot hangs at "Saving random seed:". A sample bisect
> log is attached. Reverting this patch fixes the problem.

Ok, it was worth trying, but yeah, it clearly causes problems for
various platforms that can't do jitter entropy and have nothing else
happening either.

Will revert.

Thanks.

               Linus

  reply	other threads:[~2022-03-22 16:22 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-17 16:28 [PATCH v1] random: block in /dev/urandom Jason A. Donenfeld
2022-02-21 18:01 ` Andy Lutomirski
2022-02-23 17:02   ` Jason A. Donenfeld
2022-02-23 17:55     ` Theodore Ts'o
2022-03-12 20:17 ` Eric Biggers
2022-03-12 20:27   ` Eric Biggers
2022-03-22 15:58 ` Guenter Roeck
2022-03-22 16:21   ` Linus Torvalds [this message]
2022-03-22 16:40     ` Jason A. Donenfeld
2022-03-22 17:09   ` Jason A. Donenfeld
2022-03-22 17:56     ` Guenter Roeck
2022-03-22 18:19       ` Jason A. Donenfeld
2022-03-22 18:29         ` Linus Torvalds
2022-03-22 18:36           ` Jason A. Donenfeld
2022-04-22 13:42       ` Jason A. Donenfeld
2022-04-22 23:46         ` Guenter Roeck
2022-04-23 13:56         ` Guenter Roeck
2022-04-23 14:28           ` Jason A. Donenfeld
2022-04-23 16:35             ` Guenter Roeck
2022-04-23 21:10           ` Jason A. Donenfeld
2022-04-24  2:04             ` Guenter Roeck
2022-04-25  0:12               ` Jason A. Donenfeld
2022-04-25  1:54                 ` Guenter Roeck
2022-04-25 11:11                   ` Jason A. Donenfeld
2022-03-22 18:24   ` Mark Brown
2022-03-22 21:54     ` Guenter Roeck
2022-03-22 22:25       ` David Laight
2022-03-23 12:10       ` Mark Brown
2022-03-23 14:23         ` Guenter Roeck
2022-03-23 15:53           ` Arnd Bergmann
2022-03-23 16:18             ` Mark Brown
2022-03-23 16:41               ` Arnd Bergmann
2022-03-23 16:47                 ` Mark Brown
2022-04-23  0:52             ` Jason A. Donenfeld
2022-04-25 12:09               ` Mark Brown

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