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SubjectRe: Visible Ctrl-C in latest kernels
Hi Joe,

On Mon, Aug 25, 2008 at 08:00:07AM -0600, Joe Peterson wrote:
> Willy Tarreau wrote:
> >>> Chris, yes, what you are now seeing on the newer kernel is correct.
> >> Thanks guys. I was not aware of this change before asking. The change
> >> makes sense. I wasn't having any problems with it, just wondering where
> >> it came from.
> >>
> >> Thanks for the enlightenment. :-)
> >
> > I would not be surprized that it is what has caused delays for Ctrl-C
> > to take effect for some of us. As discussed in another thread on the
> > subject, the problem was relatively recent and not easy to reproduce.
> > Now we have a patch to try to revert if/when we finally get a reproducible
> > case.
>
> It seems very unlikely that the echo has anything to do with it, other
> than making the problem more visible. See this post:
>
> http://marc.info/?l=linux-kernel&m=121526224222656&w=2

possible, indeed.

> And to what patch of yours are you referring?

not mine, I was speaking about your patch of 2008/02/06 which was
talked about earlier in this thread. I was thinking that it was
possible that the signal got delayed when it was hard to print
^C because the output was already busy spewing a stream of data.
Maybe I'm wrong, but I mean it does not cost much to try to revert
this patch when the problem is encountered. And I keep in mind
that it is possible, as you say, that your patch only makes the
problem more visible.

Regards,
Willy



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