Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.bugs.dist > #896422

Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt

From Ben Hutchings <ben@decadent.org.uk>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt
Date 2018-05-06 19:50 +0200
Message-ID <vMvXk-6pl-23@gated-at.bofh.it> (permalink)
References (7 earlier) <vMaJb-12C-13@gated-at.bofh.it> <vLbR0-2oY-1@gated-at.bofh.it> <vMtLP-554-1@gated-at.bofh.it> <vLbR0-2oY-1@gated-at.bofh.it> <vMtLP-554-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

On Sun, 2018-05-06 at 17:22 +0200, Laurent Bigonville wrote:
> On Sat, 05 May 2018 20:01:45 +0100 Ben Hutchings <ben@decadent.org.uk> 
> wrote:
>  > On Fri, 2018-05-04 at 12:20 +1200, Ben Caradoc-Davies wrote:
>  > > On 04/05/18 11:52, Ben Caradoc-Davies wrote:
>  > > > - Pressing *any* key repeatedly is enough to eventually wake up the
>  > > > plymouth LUKS screen. For example, pressing Backspace many times.
>  > >
>  > > Even a modifier key is sufficient. Without input, the screen remains
>  > > blank indefinitely (with just a blinking cursor for "quiet" boot).
>  > > Pressing right Alt 11-18 times (varies from test to test) causes the
>  > > plymouth LUKS passphrase screen to appear.
>  > >
>  > > I have attached a photo of the screen for a boot with "quiet" removed
>  > > from and "plymouth.debug" added to the kernel command line.
>  >
>  > I wonder if this is related to the recent RNG changes. It seems that
>  > many programs have started using blocking RNG functions like
>  > getentropy(), and now that the kernel is more conservative in its
>  > initial entropy estimation they can block for a long time. Keyboard or
>  > mouse input adds entropy.
>  >
>  > At a guess, plymouth is starting the X server and the X server wants
>  > random bits for MIT-MAGIC-COOKIE authentication.
> 
> Hello Ben,
> 
> plymouth doesn't uses Xorg, it uses libdrm and KMS directly.

Oh I see, I was confused by the existence of plymouth-x11.

Ben.

-- 
Ben Hutchings
If more than one person is responsible for a bug, no one is at fault.

Back to linux.debian.bugs.dist | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt (missing Kaby Lake firmware?) Ben Caradoc-Davies <ben@transient.nz> - 2018-05-03 04:10 +0200
  Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Caradoc-Davies <ben@transient.nz> - 2018-05-03 06:50 +0200
  Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Caradoc-Davies <ben@transient.nz> - 2018-05-03 07:30 +0200
  Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Caradoc-Davies <ben@transient.nz> - 2018-05-03 07:40 +0200
    Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Caradoc-Davies <ben@transient.nz> - 2018-05-04 01:40 +0200
    Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Caradoc-Davies <ben@transient.nz> - 2018-05-04 02:00 +0200
  Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Hutchings <ben@decadent.org.uk> - 2018-05-05 21:10 +0200
    Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Caradoc-Davies <ben@transient.nz> - 2018-05-06 02:40 +0200
      Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Hutchings <ben@decadent.org.uk> - 2018-05-06 05:10 +0200
    Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Laurent Bigonville <bigon@debian.org> - 2018-05-06 17:30 +0200
      Bug#897572: linux-image-4.16.0-1-amd64 breaks plymouth LUKS prompt Ben Hutchings <ben@decadent.org.uk> - 2018-05-06 19:50 +0200
  Bug#897572: plymouth: long delay before splashscreen with kernel 4.16 Ben Caradoc-Davies <ben@transient.nz> - 2018-05-06 03:10 +0200
    Bug#897958: plymouth: long delay before splashscreen with kernel 4.16 Arnaud Meyer <arnaudmeyer@gmx.com> - 2018-05-06 05:30 +0200
    Bug#897572: plymouth: long delay before splashscreen with kernel 4.16 at46 <at46n@t-online.de> - 2018-05-06 08:50 +0200
      Bug#897572: plymouth: long delay before splashscreen with kernel 4.16 Ben Caradoc-Davies <ben@transient.nz> - 2018-05-07 02:50 +0200
        Bug#897958: plymouth: long delay before splashscreen with kernel 4.16 Ben Caradoc-Davies <ben@transient.nz> - 2018-05-07 04:10 +0200
  Bug#897572:  Eric Mill <eric@konklone.com> - 2018-05-06 19:30 +0200
  Bug#897572: [PATCH] Revert "random: fix crng_ready() test" Ben Caradoc-Davies <ben@transient.nz> - 2018-05-07 05:10 +0200
    Bug#897572: [PATCH] Revert "random: fix crng_ready() test" "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-05-07 06:20 +0200
  Bug#897572: [PATCH] Revert "random: fix crng_ready() test" Ben Caradoc-Davies <ben@transient.nz> - 2018-05-07 05:50 +0200
    Bug#897572: [PATCH] Revert "random: fix crng_ready() test" "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-05-07 06:20 +0200
  Bug#897572: urandom hang in early boot Laurent Bigonville <bigon@debian.org> - 2018-05-07 19:40 +0200
    Bug#897572: urandom hang in early boot Ben Caradoc-Davies <ben@transient.nz> - 2018-05-08 01:20 +0200
      Bug#897572: urandom hang in early boot Ben Hutchings <ben@decadent.org.uk> - 2018-05-08 04:10 +0200
        Bug#897572: urandom hang in early boot Ben Caradoc-Davies <ben@transient.nz> - 2018-05-08 06:00 +0200
          Bug#897572: urandom hang in early boot Ben Caradoc-Davies <ben@transient.nz> - 2018-05-08 07:00 +0200
  Bug#897572: urandom hang in early boot Bjørn Mork <bjorn@mork.no> - 2018-05-08 13:40 +0200
    Bug#897572: urandom hang in early boot Yves-Alexis Perez <corsac@debian.org> - 2018-05-09 18:40 +0200
  Bug#897572: getrandom hang in early boot prevents plymouth passphrase entry Esokrates <esokrarkose@gmail.com> - 2018-05-09 11:00 +0200
  Bug#897572: [PATCH] Copy fontconfig .uuid files to avoid getrandom hang in early boot Ben Caradoc-Davies <ben@transient.nz> - 2018-05-10 02:00 +0200
    Bug#897572: [PATCH] Copy fontconfig .uuid files to avoid getrandom hang in early boot Laurent Bigonville <bigon@debian.org> - 2018-05-14 10:30 +0200
      Bug#897572: [PATCH] Copy fontconfig .uuid files to avoid getrandom hang in early boot Ben Caradoc-Davies <ben@transient.nz> - 2018-05-15 08:00 +0200
  Bug#897572: getrandom hang in early boot prevents plymouth passphrase entry Ben Caradoc-Davies <ben@transient.nz> - 2018-05-10 02:50 +0200
    Bug#897572: getrandom hang in early boot prevents plymouth passphrase entry "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-05-10 04:00 +0200
      Bug#897572: getrandom hang in early boot prevents plymouth passphrase entry Ben Caradoc-Davies <ben@transient.nz> - 2018-05-10 04:40 +0200
        Bug#897572: getrandom hang in early boot prevents plymouth passphrase entry Laurent Bigonville <bigon@debian.org> - 2018-05-10 11:50 +0200
        Bug#897572: getrandom hang in early boot prevents plymouth passphrase entry Yves-Alexis Perez <corsac@debian.org> - 2018-05-10 12:50 +0200

csiph-web