linux-kernel - Re: [PATCH] x86: 64bit support more than 256 irq v2

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: <86802c440808011916q1a279ael995eaeaa655c239@mail.gmail.com>
Date:	Fri, 1 Aug 2008 19:16:28 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Dhaval Giani" <dhaval@...ux.vnet.ibm.com>,
	"Mike Travis" <travis@....com>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, "Yinghai Lu" <yhlu.kernel@...il.com>
Subject: Re: [PATCH] x86: 64bit support more than 256 irq v2

On Fri, Aug 1, 2008 at 7:02 PM, Yinghai Lu <yhlu.kernel@...il.com> wrote:
> Dhaval Giani got:
> kernel BUG at arch/x86/kernel/io_apic_64.c:357!
> invalid opcode: 0000 [1] SMP
> CPU 24
> ...
>
> his system (x3950) has 8 ioapic, irq > 256
>
> caused by
>        commit 9b7dc567d03d74a1fbae84e88949b6a60d922d82
>        Author: Thomas Gleixner <tglx@...utronix.de>
>        Date:   Fri May 2 20:10:09 2008 +0200
>
>           x86: unify interrupt vector defines
>
>           The interrupt vector defines are copied 4 times around with minimal
>           differences. Move them all into asm-x86/irq_vectors.h
>
> because 64bit allow same vector for different cpu to serve different irq
>
> need to create that array dynamically later
>
> v2: change NR_IRQS to 1024
>
> Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
> Tested-by: Dhaval Giani <dhaval@...ux.vnet.ibm.com>

this is for
http://bugzilla.kernel.org/show_bug.cgi?id=11201

but need SGI guys to verify in their system. they like to have NR_IRQS to be 224

otherwise we need to use dyn_array solution or wait for Eric come out
dyn irq_desc/irq_cfg

YH
--
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/