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  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, 31 Jan 2014 21:08:25 +0100
From:	Peter Zijlstra <>
To:	Jason Low <>
Cc:	Ingo Molnar <>,
	Paul McKenney <>,
	Waiman Long <>,
	Linus Torvalds <>,
	Thomas Gleixner <>,
	Linux Kernel Mailing List <>,
	Rik van Riel <>,
	Andrew Morton <>,
	Davidlohr Bueso <>,
	"H. Peter Anvin" <>, Andi Kleen <>,
	"Chandramouleeswaran, Aswin" <>,
	"Norton, Scott J" <>,
Subject: Re: [RFC][PATCH v2 5/5] mutex: Give spinners a chance to
 spin_on_owner if need_resched() triggered while queued

On Fri, Jan 31, 2014 at 12:01:37PM -0800, Jason Low wrote:
> On Fri, Jan 31, 2014 at 6:09 AM, Peter Zijlstra <> wrote:
> > I've downloaded AIM7 from and I hope I'm running it with 100+
> > loads but I'm not entirely sure I got this thing right, its not really
> > making progress with or without patch :/
> Ingo's program using the V option may
> be able to generate similar mutex contention.
> Currently still getting soft lockups with the updated version.

Bugger.. ok clearly I need to think harder still. I'm fairly sure this
cancelation can work though, just seems tricky to get right :-)

I'll give that proglet from Ingo a go, although that might be Monday ere
I get to it.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists