From: Ross Biro <rossb@google.com>
To: Ross Biro <rossb@google.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: BUG: [2.4.18+] IDE Race Condition
Date: Mon, 27 Jan 2003 09:34:34 -0800 [thread overview]
Message-ID: <3E356DAA.6090108@google.com> (raw)
In-Reply-To: 3E356854.1090100@google.com
The net effect of this race condition and the other one I spotted is
that you may see some interesting messages in your log file and you can
detect the race condition if you look for it hard enough. I don't
currently see any bad effects.
Ross
Ross Biro wrote:
>
> There is at least one more IDE race condition in 2.4.18 and
> 2.4.21-pre3. Basically the interrupt for the controller being serviced
> is left on while setting up the next command. I'm not sure how much
> trouble it can cause but it does lead to some interesting stack traces.
>
> The condition
> if (masked_irq && hwif->irq != masked_irq)
> in ide_do_request should be replaced with
> if (!masked_irq || hwif->irq != masked_irq)
> in two places.
>
next prev parent reply other threads:[~2003-01-27 17:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-27 17:11 BUG: [2.4.18+] IDE Race Condition Ross Biro
2003-01-27 17:34 ` Ross Biro [this message]
2003-01-28 2:46 ` Andre Hedrick
2003-01-28 16:48 ` Ross Biro
2003-01-28 17:28 ` Andre Hedrick
2003-01-28 17:42 ` Ross Biro
2003-01-28 18:01 ` Andre Hedrick
2003-01-30 17:34 ` Alan Cox
2003-01-30 16:58 ` Ross Biro
2003-01-30 18:01 ` Alan Cox
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