From: Mark Brown <broonie@kernel.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>,
linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
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>,
Linus Torvalds <torvalds@linux-foundation.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 18:24:19 +0000 [thread overview]
Message-ID: <YjoUU+8zrzB02pW7@sirena.org.uk> (raw)
In-Reply-To: <20220322155820.GA1745955@roeck-us.net>
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On Tue, Mar 22, 2022 at 08:58:20AM -0700, Guenter Roeck 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.
Just as a datapoint for debugging at least qemu/arm is getting coverage
in CI systems (KernelCI is covering a bunch of different emulated
machines and LKFT has at least one configuration as well, clang's tests
have some wider architecture coverage as well I think) and they don't
seem to be seeing any problems - there's some other variable in there.
For example current basic boot tests for KernelCI are at:
https://linux.kernelci.org/test/job/mainline/branch/master/kernel/v5.17-1442-gb47d5a4f6b8d/plan/baseline/
for mainline and -next has:
https://linux.kernelci.org/test/job/next/branch/master/kernel/next-20220322/plan/baseline/
These are with a buildroot based rootfs that has a "Saving random seed: "
step in the boot process FWIW.
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next prev parent reply other threads:[~2022-03-22 18:25 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
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 [this message]
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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