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List:       linux-kernel
Subject:    Re: Serious problem with ticket spinlocks on ia64
From:       Tony Luck <tony.luck () gmail ! com>
Date:       2010-08-31 22:17:28
Message-ID: AANLkTinHOpcdAJd0_4G=OFAnMZaXKeOsqnbjJMAxCume () mail ! gmail ! com
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On Mon, Aug 30, 2010 at 3:43 PM, Tony Luck <tony.luck@intel.com> wrote:
> Does Hedi's test fail for you if you drop the fancy ALAT trick?
> I.e. just use "serve = *p;" in __ticket_spin_lock()?

Answering my own question ... it failed in 47 minutes with the breakit
script on iteration 2812 :-(

So it would appear that the problem isn't related to the ALAT, or weird
compiler optimizations around the inline asm.

-Tony
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