Sent: Saturday, November 25, 2000 2:20
PM
Subject: Questions about Kernel
2.4.0.?
1) There is a link in /lib/modules/2.4.0.11:
build->/usr/src/linux
created by the Makefile (make modules_install).
What for?
2) Lines missing from
/usr/src/linux/include/asm/uaccess.h:
#define
put_user_ret(x,ptr,ret) ({ if (put_user(x,ptr)) return ret; })
#define get_user_ret(x,ptr,ret) ({ if (get_user(x,ptr)) return ret;
})
#define __put_user_ret(x,ptr,ret) ({ if (__put_user(x,ptr))
return ret; })
#define __get_user_ret(x,ptr,ret) ({ if
(__get_user(x,ptr)) return ret; })
Some modules will not compile without these lines
included.
3) Where are the drivers for bt878 (Video For
Linux)?
4) Some of the device special files are missing
when using devfs.
devfsd is running (loaded at the beginning of
rc.S by init).
There was no /dev/lp0 on my system, even though
module lp was loaded.
After creating this file explicitly with mknod,
the printer worked.
5) This problem is probably the fault of X11 - it
doesn't repaint the screen properly
after coming out of console mode. I have to
switch back and forth several times
before I get a proper repaint. May be related to
using framebuffer with X.
X crashes and locks completely when using sound.
Anyone know why?
6) When going through the bash command history
(using the arrow keys)
while in framebuffer mode, there will be a pause
for about 3 seconds - during this time,
the system is totally frozen until this pause has
expired. Any ideas on this?
7) How does one disable the display of the
penguin logo when booting in framebuffer
mode so that all video lines are available for
text? I know this can be removed with setfont
and possible fbset, but I would prefer the video
display be "normal" from the start. Thanks.
-- Ted
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