linux-kernel - Re: [PATCH] sysrq show-all-cpus

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:	Tue, 11 Mar 2008 10:07:50 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Jon Masters <jonathan@...masters.org>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, lwoodman@...hat.com
Subject: Re: [PATCH] sysrq show-all-cpus

On Tue, 11 Mar 2008 03:18:24 -0400
Jon Masters <jonathan@...masters.org> wrote:

> On Mon, 2008-03-10 at 14:03 -0400, Rik van Riel wrote:
> > SysRQ-P is not always useful on SMP systems, since it usually ends up showing the
> > backtrace of a CPU that is doing just fine, instead of the backtrace of the CPU
> > that is having problems.
> > 
> > This patch adds SysRQ show-all-cpus(L), which shows the backtrace of every active
> > CPU in the system.  It skips idle CPUs because some SMP systems are just too large
> > and we already know what the backtrace of the idle task looks like.
> >  
> > Signed-off-by: Rik van Riel <riel@...hat.com>
> 
> Why not have it just print the local CPU on non-SMP anyway?

Sysrq p already does exactly that.

-- 
All rights reversed.
--
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/