linux-kernel - Re: Ctrl+C doesn't interrupt process waiting for I/O

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Message-ID: <486E97F2.8020605@firstfloor.org>
Date:	Fri, 04 Jul 2008 23:36:50 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Joe Peterson <joe@...rush.com>, Elias Oltmanns <eo@...ensachen.de>,
	Török Edwin <edwintorok@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Ctrl+C doesn't interrupt process waiting for I/O

Alan Cox wrote:
>> Doesn't make sense to me. And yes I see this here regularly and it started
>> at some point.
> 
> Lets have some profiles and TSC numbers then. I'm happy to believe some
> specific combination of hardware/timing shows up a real problem but
> looking at the tiny amount of code involved I can see no sane explanation
> as to why at this point.

Well Elias showed that changing the order made a visible difference.

> I'm not going to look further into it without real serious data from
> people seeing it.

So you're saying multiple independent people suffer from some kind of
hallucination?

-Andi

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