user-mode port 0.34-2.4.0-test11

DISCUSSION Jeff Dike 2 participants 2 messages Nov 20, 2000 – Nov 22, 2000

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Jeff Dike

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2000-11-20 06:08 UTC #0 lore raw

The user-mode port of 2.4.0-test11 is available.

UML is now able to run as a daemon, i.e. with no stdin/stdout/stderr.

The hostfs filesystem now works as a readonly filesystem. It's now configurable. I'm using it as a module. It ought to work compiled into the kernel, but I haven't checked this.

I fixed a number of bugs.

NOTE: If you compile from source, you must put 'ARCH=um' on the make command line or in the environment, like:
make linux ARCH=um
or
ARCH=um make linux
or
export ARCH=um
make linux

This is because I've changed the top-level Makefile to build either a native kernel or a usermode kernel, with the default being native. This is in preparation for submitting this port to the main pool. The ARCH calculation is now this:

# SUBARCH tells the usermode build what the underlying arch is. That is set # first, and if a usermode build is happening, the "ARCH=um" on the command

# line overrides the setting of ARCH below.  If a native build is happening,
# then ARCH is assigned, getting whatever value it gets normally, and 
# SUBARCH is subsequently ignored.

SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
ARCH := $(SUBARCH)

If anyone has any objections to this going in the main pool, let me know, and also let me know what you would suggest as a fix.

The project's home page is http://user-mode-linux.sourceforge.net

The project's download page is http://sourceforge.net/project/filelist.php?grou
p_id=429

Jeff

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Daniel Phillips

2000-11-22 22:11 UTC #1 lore raw

Quoted 31 lines · Jeff Dike

The user-mode port of 2.4.0-test11 is available.
UML is now able to run as a daemon, i.e. with no stdin/stdout/stderr.
The hostfs filesystem now works as a readonly filesystem. It's now configurable. I'm using it as a module. It ought to work compiled into the kernel, but I haven't checked this.
I fixed a number of bugs.
NOTE: If you compile from source, you must put 'ARCH=um' on the make command line or in the environment, like:
make linux ARCH=um
or
ARCH=um make linux
or
export ARCH=um
make linux
This is because I've changed the top-level Makefile to build either a native kernel or a usermode kernel, with the default being native. This is in preparation for submitting this port to the main pool. The ARCH calculation is now this:
# SUBARCH tells the usermode build what the underlying arch is. That is set # first, and if a usermode build is happening, the "ARCH=um" on the command
# line overrides the setting of ARCH below.  If a native build is happening,
# then ARCH is assigned, getting whatever value it gets normally, and
# SUBARCH is subsequently ignored.

Quoted 6 lines

SUBARCH:= $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
ARCH:= $(SUBARCH)
If anyone has any objections to this going in the main pool, let me know, and also let me know what you would suggest as a fix.

As you know, I'm making heavy use of uml for mm, vfs and fs development, and I can't say enough good things about it. With uml I have a development cycle that looks roughly like this:

20 secs make+gcc+ln
10 secs boot new user mode linux
6 secs fsck (if crashed before) :-)
*tests go here*
10 secs shutdown

And there are still a lot of ways to tighten that up. The stability has been impressive - so far, no crashes at all that weren't supposed to be crashes, at least in the work I'm doing.

I think this is ready...

--
Daniel
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