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SubjectRe: Dumping /dev/zero to the console


On Sun, 21 Jul 1996, Jon Lewis wrote:

> On Fri, 19 Jul 1996, Drew Eckhardt wrote:
>
> > In message <199607182022.PAA10655@nixnet.qrp.com>, Nathan.Lewis@nixnet.qrp.com
> > writes:
> > >On 18 Jul 96 at 1:19, Paul Gortmaker <gpg109@rsphy6.anu.edu.au>
> > >wrote:
> > >
> > >Is there any reason /dev/zero should be readable by normal users,
> >
> > It is needed to map-in zero filled pages for the dynamic linker.
>
> Well...I also tried the dd trick on my humble little 486-33, and other
> than eat about 85% of the CPU time, slowing things down even more,
> nothing terrible happened.
>
I was unable to check how much of CPU time it ate. My system just got
unusable. I had to wait about 2 minutes (486DX2-66) after pressing a key
for a letter to appear on the screen. Similar time between pressing Ctrl-C
and shell prompt return.

Best regards

Emil


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