linux-kernel - Re: [stable] [PATCH] x86: Reserve FIRST_DEVICE_VECTOR in used

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]

Date:	Fri, 10 Oct 2008 21:50:38 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Greg KH <greg@...ah.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Stefan Bader <stefan.bader@...onical.com>, stable@...nel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, Yinghai Lu <yinghai@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [stable] [PATCH] x86: Reserve FIRST_DEVICE_VECTOR in
 used_vectors bitmap

On Fri, 10 Oct 2008 13:41:33 -0700
Greg KH <greg@...ah.com> wrote:

> On Fri, Oct 10, 2008 at 01:35:48PM -0700, H. Peter Anvin wrote:
> > Greg KH wrote:
> >> Is there a problem with being assigned to IRQ0 in situations like this?
> >
> > On PCs, IRQ 0 is dedicated to use for the PIT.
> 
> Ah, I didn't realize it couldn't be shared.

And more importantly dev->irq == 0 or IRQ == 0 to anything but arch
internal code means "no interrupt line".
--
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/