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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next 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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