All of lore.kernel.org
 help / color / mirror / Atom feed
From: Daniil Stas <daniil.stas@posteo.net>
To: "Jarkko Sakkinen" <jarkko@kernel.org>
Cc: <mario.limonciello@amd.com>,
	<James.Bottomley@hansenpartnership.com>, <Jason@zx2c4.com>,
	<linux-integrity@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<regressions@leemhuis.info>, <stable@vger.kernel.org>,
	<torvalds@linux-foundation.org>
Subject: Re: [PATCH 1/1] tpm: disable hwrng for fTPM on some AMD designs
Date: Fri, 28 Jul 2023 20:18:10 +0000	[thread overview]
Message-ID: <20230728231810.48370d44@g14> (raw)
In-Reply-To: <CUE1Z76QDX0Z.2K0OU6TPMS50X@seitikki>

On Fri, 28 Jul 2023 19:30:18 +0000
"Jarkko Sakkinen" <jarkko@kernel.org> wrote:

> On Thu Jul 27, 2023 at 3:38 PM UTC, Daniil Stas wrote:
> > Hi,
> > I am still getting fTPM stutters with 6.4.3 kernel on Asus GA402RJ
> > laptop.
> > Compiling kernel without TPM support makes the stutters go away.
> > The fTPM firmware version is 0x3005700020005 on my machine.  
> 
> This is needs a bit more elaboration in order to be comprehended.
> 
> Do you mean by "stutter" unexpected delays and when do they happen?
> 
> BR, Jarkko

Yes, unexpected delays. They just happen randomly.
You can google "AMD fTPM stuttering", there are a lot of examples.
Here is one: https://www.youtube.com/watch?v=TYnRL-x6DVI

  reply	other threads:[~2023-07-28 20:19 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-14 20:19 [PATCH 0/1] Avoid triggering an fTPM bug from kernel Mario Limonciello
2023-02-14 20:19 ` [PATCH 1/1] tpm: disable hwrng for fTPM on some AMD designs Mario Limonciello
2023-02-17 15:18   ` Thorsten Leemhuis
2023-02-17 22:35     ` Jarkko Sakkinen
2023-02-18  2:25       ` Limonciello, Mario
2023-02-21 22:53         ` Jarkko Sakkinen
2023-02-21 23:10           ` Limonciello, Mario
2023-02-27 10:57             ` Thorsten Leemhuis
2023-02-27 11:14               ` Jarkko Sakkinen
2023-02-27 11:16                 ` Jarkko Sakkinen
2023-02-17 22:05   ` Jarkko Sakkinen
2023-07-27 15:38   ` Daniil Stas
2023-07-27 15:42     ` Mario Limonciello
2023-07-27 16:39       ` Daniil Stas
2023-07-27 16:41         ` Mario Limonciello
2023-07-27 16:50           ` Daniil Stas
2023-07-27 16:51             ` Mario Limonciello
2023-07-27 17:05               ` Daniil Stas
2023-07-28 20:41                 ` Linus Torvalds
2023-07-28 21:01                   ` Limonciello, Mario
2023-07-28 21:38                     ` Linus Torvalds
2023-07-28 21:47                       ` Limonciello, Mario
     [not found]                   ` <CUGAV1Y993FB.1O2Q691015Z2C@seitikki>
2023-07-31 19:05                     ` Linus Torvalds
2023-07-31 19:18                       ` Limonciello, Mario
2023-07-31 19:30                         ` Linus Torvalds
2023-07-31 21:57                           ` Limonciello, Mario
2023-07-31 23:28                             ` Linus Torvalds
2023-07-31 23:40                               ` Jason A. Donenfeld
2023-08-01  3:04                                 ` Mario Limonciello
2023-08-01 11:36                                   ` Mateusz Schyboll
2023-08-01 18:52                                   ` Jarkko Sakkinen
2023-08-01 18:55                                     ` Jarkko Sakkinen
2023-08-01 18:28                       ` Jarkko Sakkinen
2023-08-01 18:42                         ` Linus Torvalds
2023-08-01 18:51                           ` Mario Limonciello
2023-08-01 19:09                           ` Jarkko Sakkinen
2023-08-02 23:13                             ` Jerry Snitselaar
2023-08-03  0:34                               ` Stefan Berger
2023-07-31 21:44                     ` Limonciello, Mario
2023-07-28 19:30     ` Jarkko Sakkinen
2023-07-28 20:18       ` Daniil Stas [this message]
2023-07-31 10:14         ` Jarkko Sakkinen
2023-07-31 10:28           ` Daniil Stas
2023-07-31 11:07             ` Jarkko Sakkinen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230728231810.48370d44@g14 \
    --to=daniil.stas@posteo.net \
    --cc=James.Bottomley@hansenpartnership.com \
    --cc=Jason@zx2c4.com \
    --cc=jarkko@kernel.org \
    --cc=linux-integrity@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mario.limonciello@amd.com \
    --cc=regressions@leemhuis.info \
    --cc=stable@vger.kernel.org \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.