From: tlaronde@polynum.com
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Scrolling considered harmful
Date: Fri, 3 May 2013 21:11:41 +0200 [thread overview]
Message-ID: <20130503191141.GA1010@polynum.com> (raw)
In-Reply-To: <55d102273818f17528b64eab4ebd9b52@coraid.com>
On Fri, May 03, 2013 at 02:57:12PM -0400, erik quanstrom wrote:
>
> the problem is that the VBE calls that are used to set up
> various video modes jump to vendor-provided real mode
> code that is often buggy. the reason for emulation is
> (a) to avoid problems associated with real-mode code
> triggering interrupts the partial real-mode implementation
>
> the 9 kernels provide is not prepared to handle, and
> (b) to avoid invalid accesses caused by buggy real-mode
> code.
>
I will first master vgadb, plan9.ini and aux/vga to get a more sensible
vgasize. And afterwards I will insert aux/realemu to see if the freeze
do not happen again.
--
Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
http://www.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
next prev parent reply other threads:[~2013-05-03 19:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-23 13:35 tlaronde
2013-04-23 13:37 ` erik quanstrom
2013-04-23 14:46 ` tlaronde
2013-04-23 15:18 ` erik quanstrom
2013-04-23 16:17 ` tlaronde
2013-05-03 18:51 ` tlaronde
2013-05-03 18:57 ` erik quanstrom
2013-05-03 19:11 ` tlaronde [this message]
2013-05-06 13:24 ` tlaronde
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