linux-kernel - Re: [PATCH 3/4] sparc: fix accurate exception reporting in copy_{from_to}

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>] [day] [month] [year] [list]

Message-ID: <332d8b631eec7fbf0234ab699e49f19ee059510d.camel@physik.fu-berlin.de>
Date: Fri, 05 Sep 2025 08:36:26 +0200
From: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To: Ken Link <iissmart@...berzero.org>, Magnus Lindholm <linmag7@...il.com>
Cc: Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>, 
	linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org, Andreas Larsson
	 <andreas@...sler.com>, Anthony Yznaga <anthony.yznaga@...cle.com>
Subject: Re: [PATCH 3/4] sparc: fix accurate exception reporting in
 copy_{from_to}_user for Niagara

Hi Ken,

On Thu, 2025-09-04 at 22:31 -0500, Ken Link wrote:
> I can provide additional test coverage on a T1000, using Adrian's patched kernel package from:
> https://people.debian.org/~glaubitz/sparc64/linux-image-6.12.3-sparc64-smp_6.12.3-1+sparc64_sparc64.deb
> 
> $ uname -a
> Linux t1000a 6.12.3-sparc64-smp #1 SMP Debian 6.12.3-1+sparc64 (2025-08-28) sparc64 GNU/Linux
> $ lsb_release -a
> 
> No LSB modules are available.
> Distributor ID: Debian
> Description:    Debian GNU/Linux bookworm/sid
> Release:        unstable
> Codename:       sid
> $ sudo dmesg | grep T1000
> [    0.979644] PLATFORM: banner-name [Sun Fire(TM) T1000]
> [    0.980069] PLATFORM: name [SUNW,Sun-Fire-T1000]
> $ lscpu
> Architecture:          sparc64
>   CPU op-mode(s):      32-bit, 64-bit
>   Byte Order:          Big Endian
> CPU(s):                24
>   On-line CPU(s) list: 0-23
> Model name:            UltraSparc T1 (Niagara)
>   Thread(s) per core:  4
>   Core(s) per socket:  6
>   Socket(s):           1
>   Flags:               sun4v
> Caches (sum of all):   
>   L1d:                 192 KiB (24 instances)
>   L1i:                 384 KiB (24 instances)
>   L2:                  72 MiB (24 instances)
> 
> Tested-by: Ken Link <iissmart@...berzero.org>

Thanks for the testing. I think Michael will add this as well.

For clarification to Michael, this is a "Sun Fire T1000".

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913