From: Mikhail Paulyshka <me@mixaill.net>
To: Borislav Petkov <bp@alien8.de>
Cc: Mario Limonciello <mario.limonciello@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
Rik van Riel <riel@surriel.com>
Subject: Re: [PATCH v2 1/1] x86/rdrand: disable RDSEED on AMD Cyan Skillfish
Date: Sun, 6 Jul 2025 23:31:25 +0300 [thread overview]
Message-ID: <cbb411e3-cdd9-48df-988b-04bb09268ebc@mixaill.net> (raw)
In-Reply-To: <20250706170741.GAaGqtXT99yYVoEmCh@fat_crate.local>
On 7/6/25 8:07 PM, Borislav Petkov wrote:
> Looks like it GPs because CR4.PCID == 0.
>
> Looks weird, we need to check PCID support somewhere, it seems.
>
> Ok, let's get a common code base - 6.15. Pls boot it, send me full dmesg again
dmesg with vanilla 6.15.0:
https://mixaill.net/linux-kernel-lists/bc250_log_invlpgb-2-dmesg.txt
> your .config
https://raw.githubusercontent.com/openSUSE/kernel-source/4552ba89cbebd55482508c4ba4fc290df58f9386/config/x86_64/vanilla
> and the output of cpuid -1r
https://mixaill.net/linux-kernel-lists/bc250_log_invlpgb-2-cpuid.txt
next prev parent reply other threads:[~2025-07-06 20:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-24 14:53 Mikhail Paulyshka
2025-05-24 16:11 ` Borislav Petkov
2025-06-17 20:05 ` Borislav Petkov
2025-06-17 20:21 ` Dave Hansen
2025-07-07 10:17 ` Mikhail Paulyshka
2025-07-07 15:25 ` Borislav Petkov
2025-07-07 15:34 ` Dave Hansen
2025-07-06 16:42 ` Mikhail Paulyshka
2025-07-06 17:07 ` Borislav Petkov
2025-07-06 20:31 ` Mikhail Paulyshka [this message]
2025-07-08 14:50 ` [tip: x86/urgent] x86/CPU/AMD: Disable INVLPGB on Zen2 tip-bot2 for Mikhail Paulyshka
2025-07-08 19:50 ` tip-bot2 for Mikhail Paulyshka
2025-07-08 14:50 ` [tip: x86/urgent] x86/rdrand: Disable RDSEED on AMD Cyan Skillfish tip-bot2 for Mikhail Paulyshka
2025-07-08 19:50 ` tip-bot2 for Mikhail Paulyshka
2026-01-14 20:52 [PATCH v2 1/1] x86/rdrand: disable " Travis B
2026-01-14 21:28 ` Borislav Petkov
2026-01-14 21:41 ` Travis B
2026-01-14 22:09 ` Travis B
2026-01-15 10:28 ` Borislav Petkov
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