Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing.

From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing.
Date	2021-06-15 22:00 +0200
Message-ID	<Cqno6-1AL-13@gated-at.bofh.it> (permalink)
References	(2 earlier) <CnNoJ-3RB-1@gated-at.bofh.it> <CnPgR-4XT-1@gated-at.bofh.it> <Cqno6-1AL-15@gated-at.bofh.it> <Cnlst-3XL-3@gated-at.bofh.it> <Cqno6-1AL-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Hi,

On Tue, Jun 15, 2021 at 10:05:29AM +0300, Михаил Осипов wrote:
> Sorry, missed this message. Here are the logs. Several boots with and
> without recovery mode. Last one with old kernel.

Thanks for provinding those, much appreciated and it helps. So from
the boot logs this might be amdgpu related. Am I correct, you can
reach the host after bootup via a SSH login?

Would you be able to:

- Test directly upstream both 5.10.28, 5.10.40 (and 5.10.44 to be
  relased tomorrow)?
- If triggerable between 5.10.28 and 5.10.44: bisect to find the
  introducing upstream commit?

Some indication on how to build:

https://kernel-team.pages.debian.net/kernel-handbook/ch-common-tasks.html

and

https://wiki.debian.org/DebianKernel/GitBisect

Regards,
Salvatore

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Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing. Mikhail Osipov <osmiev@gmail.com> - 2021-06-07 13:20 +0200
  Processed: Re: Bug#989551: linux-image-5.10.0-7-amd64:  linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and  nothing else. Debian testing. "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-06-07 13:40 +0200
  Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing. Salvatore Bonaccorso <carnil@debian.org> - 2021-06-07 13:40 +0200
    Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing. Михаил Осипов <osmiev@gmail.com> - 2021-06-08 19:10 +0200
      Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing. Salvatore Bonaccorso <carnil@debian.org> - 2021-06-08 21:10 +0200
  Bug#989551: linux-image-5.10.0-7-amd64: linux-image-5.10.0.7-amd64 hang on boot. Shows symbols: '^@^@^@' and nothing else. Debian testing. Salvatore Bonaccorso <carnil@debian.org> - 2021-06-15 22:00 +0200

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