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From: Matan Ziv-Av <matan@svgalib.org>
To: linux-kernel@vger.kernel.org
Cc: Linus Torvalds <torvalds@transmeta.com>
Subject: [PATCH] svgalib error in mmap documentation
Date: Sat, 6 Jan 2001 10:33:27 +0200 (IST)	[thread overview]
Message-ID: <Pine.LNX.4.21_heb2.09.0101061029360.1256-100000@matan.home> (raw)



Hi,

svgalib needs to be compiled without background support in order to run
under kernl 2.4.0 or newer. Here's a patch to Documentation/Changes that
says this.

--- /usr/src/linux.b/Documentation/Changes        Tue Dec 12 18:43:22 2000
+++ linux/Documentation/Changes     Sat Jan  6 10:28:20 2001
@@ -517,6 +517,14 @@
 Older isdn4k-utils versions don't support EXTRAVERSION into kernel version
 string. A upgrade to isdn4k-utils.v3.1beta7 or later is recomented.

+SVGAlib
+=======
+If you want svgalib programs to run with kernel 2.4.0 or newer, svgalib
+needs to be compiled without background support (BACKGROUND not defined in
+Makefile.cfg). This is relevant to any svgalib version.
+This is because svgalib uses mmap of /proc/mem to emulate vga's memory bank
+switching when in background, and kernel 2.4.0 stopped supporting this feature.
+


-- 
Matan Ziv-Av.                         matan@svgalib.org


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             reply	other threads:[~2001-01-06  8:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-06  8:33 Matan Ziv-Av [this message]
2001-01-06 15:42 ` [PATCH] svgalib error in mmap documentation Alan Cox
2001-01-06 21:22   ` Matan Ziv-Av
2001-01-06 21:50     ` Alan Cox
2001-01-07  9:16     ` Christoph Rohland

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