linux-kernel - [Regression] Can only do S3 once after "tpm: take TPM chip power gating out of tpm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <7E60C7F0-85C6-4A9A-B905-904D37A5E67B@canonical.com>
Date:   Mon, 7 Dec 2020 12:42:53 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>
Cc:     linux-integrity@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>
Subject: [Regression] Can only do S3 once after "tpm: take TPM chip power
 gating out of tpm_transmit()"

Hi Jarkko,

A user report that the system can only do S3 once. Subsequent S3 fails after commit a3fbfae82b4c ("tpm: take TPM chip power gating out of tpm_transmit()").

Dmesg with the issue, collected under 5.10-rc2:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891502/comments/14

Dmesg without the issue, collected under 5.0.0-rc8:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891502/comments/16

Full bug report here:
https://bugs.launchpad.net/bugs/1891502

Kai-Heng