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List:       linux-kernel
Subject:    Re: 2.1.42 -- Console output slowdown
From:       Michael Poole <poole+ () andrew ! cmu ! edu>
Date:       1997-05-31 14:06:13
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On Fri, 30 May 1997 jburrell@crl5.crl.com wrote:

> 
> It looks like the console output slowdown may be back again in 2.1.42. I
> just reinstalled my system under the latest Slackware. I was running
> development kernels before, so I went ahead and upgraded what needed
> upgrading and then compiled 2.1.42.
> 

	I noticed a problem that *looks* like this, but is not: under SMP
(on a UP machine), 2.1.42 takes several seconds to start any process under
load conditions (such as running a compile on another vt).  Without SMP,
it behaves normally.  Was your kernel compiled with SMP?

	I looked briefly at the source for execve(), but I was not
enlightened about its cause.  If I remember correctly, this was also a
problem in late 2.1.3x kernels, but I don't recall if I tested for it in
2.1.40 or 2.1.41.


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