linux-kernel - Re: [Regression v5.19-rc1] crash kexec fails to boot the 2nd kernel (Re: [PATCH v12 38/46] x86/sev: Add SEV-SNP feature detection/setup)

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: <YrwLS8qRDhjmeD5Z@zn.tnic>
Date:   Wed, 29 Jun 2022 10:20:27 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     NOMURA JUNICHI(野村　淳一) 
        <junichi.nomura@....com>, Michael Roth <michael.roth@....com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
Subject: Re: [Regression v5.19-rc1] crash kexec fails to boot the 2nd kernel
 (Re: [PATCH v12 38/46] x86/sev: Add SEV-SNP feature detection/setup)

On Wed, Jun 29, 2022 at 07:38:09AM +0000, NOMURA JUNICHI(野村 淳一) wrote:
> > If so, can you apply the below potential fix, and retry your original
> > reproducer?
> 
> I tried your potential fix but it didn't work...  The symptom was same
> as before.

I still think the proper fix is to not execute that cc blob code on
anything but AMD...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette