DragonFly BSD
DragonFly bugs List (threaded) for 2004-11
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Re: Http get commands return a bad results.

From: walt <wa1ter@xxxxxxxxxxxxx>
Date: Tue, 16 Nov 2004 17:55:13 -0800

On Tue, 16 Nov 2004, Matthew Dillon wrote:

>     Leave SACK turned off (set it to 0 in /etc/sysctl.conf) and run a bunch
>     more tests and report back.
>     If you consistently get zero corruption with SACK turned off then we
>     know it is SACK....

Okay, I downloaded the same cups sourcefile three times from different
mirrors and got a perfect result every time.

I set SACK=1 again and downloaded a corrupt file from the same ftp server
which gave me a perfect file just minutes earlier.

So far:  five out of six files corrupt with SACK=1 and zero of four with

After years of reading scientific journals I can say without any hesitation
that SACK is responsible for the file corruption (p=0.0001).

(I can say with equal certainty that most scientific articles likewise
make up a p-value out of thin air, but that has little to do with the
present file-corruption problem ;o)

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