linux-kernel - Re: AMD zen microcode updates breaks boot

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <4d4bf52a-dd91-48ad-8949-198b2ffbc9da@kernel.dk>
Date: Thu, 17 Oct 2024 08:23:10 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Borislav Petkov <bp@...en8.de>
Cc: Thomas Gleixner <tglx@...utronix.de>,
 the arch/x86 maintainers <x86@...nel.org>,
 LKML <linux-kernel@...r.kernel.org>,
 "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>
Subject: Re: AMD zen microcode updates breaks boot

On 10/17/24 8:13 AM, Borislav Petkov wrote:
> On Thu, Oct 17, 2024 at 08:05:09AM -0600, Jens Axboe wrote:
>> Same thing, doesn't boot, just hangs after loading the kernel.
> 
> Ohh, so it is not the patch application but something else in the code.
> 
> I presume "dis_ucode_ldr" on the kernel cmdline makes it boot?

Yep, it boots with that added on current -git WITH the microcode
package installed.

-- 
Jens Axboe