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From: Stephan von Krawczynski <skraw@ithnet.com>
To: TeJun Huh <tejun@aratech.co.kr>
Cc: andrea@suse.de, manfred@colorfullife.com,
	linux-kernel@vger.kernel.org, zwane@linuxpower.ca
Subject: Re: Possible race condition in i386 global_irq_lock handling.
Date: Fri, 22 Aug 2003 12:07:20 +0200	[thread overview]
Message-ID: <20030822120720.06b0f8f6.skraw@ithnet.com> (raw)
In-Reply-To: <20030822011840.GA14540@atj.dyndns.org>

On Fri, 22 Aug 2003 10:18:40 +0900
TeJun Huh <tejun@aratech.co.kr> wrote:

>  I'm attaching patch for i386. It makes three changes.
> 
>  1. add smp_mb() between local_irq_count++ and global_irq_lock test
>     in irq_enter().
>  2. add smp_mb__after_clear_bit() before irqs_running() test in
>     wait_on_irq().
>  3. remove irqs_running() test from synchronize_irq()

Thank you TeJun,

I have started tests and will provide feedback if your patch has any influence
on my problem. This may take some days.

Regards,
Stephan

  reply	other threads:[~2003-08-22 10:07 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-21 17:01 Possible race condition in i386 global_irq_lock handling Manfred Spraul
2003-08-21 17:27 ` Andrea Arcangeli
2003-08-21 21:48   ` Stephan von Krawczynski
2003-08-21 22:44     ` Andrea Arcangeli
2003-08-22  1:18     ` TeJun Huh
2003-08-22 10:07       ` Stephan von Krawczynski [this message]
2003-08-22 16:25       ` Andrea Arcangeli
2003-08-24  3:06         ` TeJun Huh
2003-08-24 22:03           ` Andrea Arcangeli
  -- strict thread matches above, loose matches on Subject: below --
2003-08-21  8:48 TeJun Huh
2003-08-21 10:07 ` Zwane Mwaikambo
2003-08-21 16:15   ` TeJun Huh

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