linux-kernel - Re: [patch 3/3] isolcpus: undeprecate on documentation

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: <20200331155708.GU20730@hirez.programming.kicks-ass.net>
Date:   Tue, 31 Mar 2020 17:57:08 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Marcelo Tosatti <mtosatti@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        Frederic Weisbecker <fweisbec@...il.com>,
        Chris Friesen <chris.friesen@...driver.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jim Somerville <Jim.Somerville@...driver.com>,
        Christoph Lameter <cl@...ux.com>
Subject: Re: [patch 3/3] isolcpus: undeprecate on documentation

On Tue, Mar 31, 2020 at 12:41:46PM -0300, Marcelo Tosatti wrote:
> On Tue, Mar 31, 2020 at 05:22:17PM +0200, Peter Zijlstra wrote:
> > On Sat, Mar 28, 2020 at 12:21:20PM -0300, Marcelo Tosatti wrote:
> > > isolcpus is used to control steering of interrupts to managed_irqs and
> > > kernel threads, therefore its incorrect to state that its deprecated.
> > > 
> > > Remove deprecation warning.
> > > 
> > > Suggested-by: Chris Friesen <chris.friesen@...driver.com>
> > > Signed-off-by: Marcelo Tosatti <mtosatti@...hat.com>
> > > 
> > > ---
> > >  Documentation/admin-guide/kernel-parameters.txt |    1 -
> > >  1 file changed, 1 deletion(-)
> > > 
> > > Index: linux-2.6/Documentation/admin-guide/kernel-parameters.txt
> > > ===================================================================
> > > --- linux-2.6.orig/Documentation/admin-guide/kernel-parameters.txt
> > > +++ linux-2.6/Documentation/admin-guide/kernel-parameters.txt
> > > @@ -1926,7 +1926,6 @@
> > >  			Format: <RDP>,<reset>,<pci_scan>,<verbosity>
> > >  
> > >  	isolcpus=	[KNL,SMP,ISOL] Isolate a given set of CPUs from disturbance.
> > > -			[Deprecated - use cpusets instead]
> > >  			Format: [flag-list,]<cpu-list>
> > >  
> > 
> > It's still an absolute horrible piece of crap though. nozh_full piling
> > more and more shit on it doesn't make it more shiny.
> 
> Hi Peter,
> 
> Why do you dislike it? What you think would be a decent approach?

Try and reconfigure it after boot.