linux-kernel - Re: [PATCH RFC] rcu: Limit GP initialization to CPUs that have been online

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: <20120314151717.GA2435@linux.vnet.ibm.com>
Date:	Wed, 14 Mar 2012 08:17:17 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Dimitri Sivanich <sivanich@....com>
Cc:	Mike Galbraith <efault@....de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] rcu: Limit GP initialization to CPUs that have been
 online

On Wed, Mar 14, 2012 at 08:08:01AM -0500, Dimitri Sivanich wrote:
> On Wed, Mar 14, 2012 at 01:40:41PM +0100, Mike Galbraith wrote:
> > On Wed, 2012-03-14 at 10:24 +0100, Mike Galbraith wrote: 
> > > On Tue, 2012-03-13 at 17:24 -0700, Paul E. McKenney wrote: 
> > > > The following builds, but is only very lightly tested.  Probably full
> > > > of bug, especially when exercising CPU hotplug.
> > > 
> > > You didn't say RFT, but...
> > > 
> > > To beat on this in a rotund 3.0 kernel, the equivalent patch would be
> > > the below?  My box may well answer that before you can.. hope not ;-)
> > 
> > (Darn, it did.  Box says boot stall with virgin patch in tip too though.
> > Wedging it straight into 3.0 was perhaps a tad premature;)
> 
> I saw the same thing with 3.3.0-rc7+ and virgin patch on UV.  Boots fine without the patch.

Right...  Bozo here forgot to set the kernel parameters for large-system
emulation during testing.  Apologies for the busted patch, will fix.

And thank you both for the testing!!!

Hey, at least I labeled it "RFC".  ;-)

							Thanx, Paul

--
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/