linux-kernel - Re: [PATCH v2] x86: Don't allow nr_irqs > NR

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 for Android: free password hash cracker in your pocket

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

Date:	Thu, 6 Nov 2008 10:03:29 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Ben Hutchings <bhutchings@...arflare.com>
Cc:	Cyrill Gorcunov <gorcunov@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v2] x86: Don't allow nr_irqs > NR_IRQS


* Ben Hutchings <bhutchings@...arflare.com> wrote:

> On Wed, 2008-11-05 at 22:11 +0300, Cyrill Gorcunov wrote:
> [...]
> > Ben I didn't manage to get a look over ACPI related changes
> > (ie to find the reason why the kernel is able to reveal 5 IO-APICs
> >  now
> [...]
> 
> I was mistaken; that *isn't* a recent change.  A default RHEL 5 
> kernel (based on 2.6.18) also finds 5 IOAPICs.

yes - it's simply a box with a lot of IO-APICs. That's not bad at all, 
it spreads out IRQ processing amongst devices.

	Ingo
--
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/