linux-kernel - Re: [PATCH] x86_64: store Socket ID in phys_proc

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

Date:	Tue, 17 Oct 2006 22:58:41 +0200
From:	Andi Kleen <ak@....de>
To:	"Lu, Yinghai" <yinghai.lu@....com>
Cc:	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	yhlu.kernel@...il.com
Subject: Re: [PATCH] x86_64: store Socket ID in phys_proc_id

On Tue, Oct 17, 2006 at 11:26:30AM -0700, Lu, Yinghai wrote:
> From: Andi Kleen [mailto:ak@....de] 
> 
> >> So for the apic id lifted system, for example BSP with apicid 0x10,
> the
> >> phys_proc_id will be 8.
> 
> >How is that a problem? 
> 
> Socket ID is 0 for first Physical processor?

It must just be some unique ID for each socket.

> >> It also removed ht_nodeid calculating, because We already have
> correct
> >> socket id for sure.
> 
> >we've had cases where it wasn't identical, that is when i originally
> >added that code.
> 
> OK, it must be system with Horus?

No it was with some dual core systems. Not all systems follow
the standard convention. Also there can be missing memory on
some nodes, this code handles this too.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/