linux-ext4 - Re: Linux 5.3-rc8

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Message-ID: <CAHk-=whzFdN3hg0H56qYQfXVbV2pXo=uAVXoFF+KOsQguqgfMg@mail.gmail.com>
Date:   Sun, 15 Sep 2019 20:31:28 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     "Ahmed S. Darwish" <darwish.07@...il.com>
Cc:     Lennart Poettering <mzxreary@...inter.de>,
        "Theodore Y. Ts'o" <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jan Kara <jack@...e.cz>, Ray Strode <rstrode@...hat.com>,
        William Jon McCann <mccann@....edu>,
        "Alexander E. Patrakov" <patrakov@...il.com>,
        zhangjs <zachary@...shancloud.com>, linux-ext4@...r.kernel.org,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: Linux 5.3-rc8

On Sun, Sep 15, 2019 at 6:41 PM Ahmed S. Darwish <darwish.07@...il.com> wrote:
>
> Yes, the systemd-random-seed(8) process blocks, but this is an
> isolated process, and it's only there as a synchronization point and
> to load/restore random seeds from disk across reboots.
>
> What blocked the system boot was GDM/gnome-session implicitly calling
> getrandom() for the Xorg MIT cookie.

Aahh. I saw that email, but then in the discussion the systemd case
always ended up coming up first, and I never made the connection.

What a complete crock that silly MIT random cookie is, and what a sad
sad reason for blocking.

              Linus