linux-kernel - Re: Serious problem with ticket spinlocks on ia64

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Message-ID: <20100827182039.GC18967@zorg.emea.sgi.com>
Date:	Fri, 27 Aug 2010 19:20:39 +0100
From:	Hedi Berriche <hedi@....com>
To:	Petr Tesarik <ptesarik@...e.cz>
Cc:	"Luck, Tony" <tony.luck@...el.com>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Serious problem with ticket spinlocks on ia64

On Fri, Aug 27, 2010 at 18:16 Petr Tesarik wrote:
| On Friday 27 of August 2010 18:08:03 Luck, Tony wrote:
| > > Hedi Berriche sent me a simple test case that can
| > > trigger the failure on the siglock.
| >
| > Can you post the test case please. How long does it typically take
| > to reproduce the problem?
| 
| I let Hedi send it. It's really easy to reproduce. In fact, I can reproduce it 
| within 5 minutes on an 8-CPU system.

Test case provided via private email.

Cheers,
Hedi.
-- 
Hedi Berriche
Global Product Support
http://www.sgi.com/support
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