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Date: Tue, 1 Apr 1997 23:50:03 -0800 (PST)
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From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
Subject: Re: kern/3066: System lock-up after npx0 probe with 2.2-RELEASE 
Reply-To: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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The following reply was made to PR kern/3066; it has been noted by GNATS.

From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
To: Hendrik Groeneveld <hendrik@hg.com>
Cc: freebsd-gnats-submit@freebsd.org, yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: kern/3066: System lock-up after npx0 probe with 2.2-RELEASE 
Date: Wed, 02 Apr 1997 16:51:15 +0900

 >> Sounds like the VGA chip in your system is having difficulty with
 >> Pentium-optimized bcopy().
 >> 
 >> Try setting 0x01 in the configuration flag of the `npx0' device in
 >> UserConfig. This flag bit will disables the Pentium-optimized bcopy().
 >> 
 >> Kazu
 >
 >Setting the npx0 flag to 1 works. Thank you! Just out of curiosity, what does
 >the VGA chip (Chips & Tech 65545) have to do with the bcopy routine?
 >
 >Hendrik
 
 I don't know exactly. My understanding is that some VGA chips cannot
 catch up with the speed of the Pentium-optimized bcopy()...
 
 Kazu