CVS commit: src/sys

[Matthias Drochner <drochner%netbsd.org@localhost>]

Module Name:    src
Committed By:   drochner
Date:           Wed Mar 12 23:26:18 UTC 2008

Modified Files:
        src/sys/arch/x86/x86: vga_post.c
        src/sys/dev/wscons: wsdisplay.c

Log Message:
-add a function to vga_post which can be called from DDB to get a
 usable VGA console ("call ddb_vgapost")
-allow to switch from/to screens occupied by an X server if the graphics
 device is console and in polling mode (ie DDB)
This together allows to get a DDB session on a VGA console if the
system crashed while X11 was running.
As long as the protocol to tell X servers about virtual screen switches
is as primitive as it is, it is unsafe to restart an X session afterwards.
So this is basically for crash analysis.


To generate a diff of this commit:
cvs rdiff -r1.6 -r1.7 src/sys/arch/x86/x86/vga_post.c
cvs rdiff -r1.118 -r1.119 src/sys/dev/wscons/wsdisplay.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.