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Date:	Fri, 04 Jul 2008 23:21:57 +0200
From:	Andi Kleen <>
To:	Alan Cox <>
Cc:	Joe Peterson <>, Elias Oltmanns <>,
	Török Edwin <>,
	Linux Kernel <>
Subject: Re: Ctrl+C doesn't interrupt process waiting for I/O

Alan Cox <> writes:

>> disk activity process over each time it completed), it always broke out
>> after one ^C - one time took an extra second or two.  Note that I did
>> not run latencytop (did not have it compiled in my kernel) - if that is
>> required for the test, let me know, but I assume it is just for
>> gathering info when the issue occurs.
> I really don't think this is tty related looking at the code involved and
> also the lack of actual measurements presented. More likely scheduler and
> VM related changes.

Why should the scheduler or VM behave differently for Ctrl-Z+kill 
versus Ctrl-C?

Doesn't make sense to me. And yes I see this here regularly and it started
at some point.

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