linuxemu: the front fell off

[GoogleCodeExporter]

i tried to start linuxemu by my usual script, but nothing happened. there was 
no output in the window i started it from, and nothing appeared in the x 
window. normal behaviour is various messages from linux program's stderr in the 
starting window, and a background image and window manager things in the x 
window. the last time i ran linuxemu was january the 2nd; it ran correctly then.

i tried my script twice, then tried individual lines from it. these three 
worked (-i added for testing):
    linux -r /usr/ethan/linuxemu/mroot-fancy /bin/bash -i
    export PATH=~/bin:/opt/WindowMaker/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11
    cd
the following line started the window manager, wmaker. this failed with the 
symptoms above. it normally writes several lines to stdout/err, displays its 
widgets in the x display, and calls another program to draw a background image. 
none of these outputs appeared, and the program did not exit.

<del> returned me to a plan 9 prompt, and i tried again. this time instead of 
wmaker i started an xterm in the background. it did not appear in the x 
display, and did not exit. i ran ps (with no options) to see what had become of 
it. ps produced no output and did not exit.

those 4 runs were the extent of my testing. after i finished, i looked at the 
kprint window (normally hidden) and saw the following:
19688 linuxemu: checked 720 page table entries
19749 linuxemu: checked 754 page table entries
19887 linuxemu: checked 754 page table entries
19892 linuxemu: checked 754 page table entries

after this i recompiled linuxemu. this made no difference.

Original issue reported on code.google.com by tereniao...@gmail.com on 31 Mar 2014 at 1:36

[GoogleCodeExporter]

i retried with -d. here is input and output:

turku% linux -d -r /usr/ethan/linuxemu/mroot-fancy /bin/bash -i
root@turku:/9/usr/ethan# cd
root@turku:~# ps
linuxemu 42718: suicide: sys: trap: fault read addr=0x0 pc=0x00000000

that's the whole output, ps stops, it doesn't end (just in case that wasn't 
clear). i also ran following commands with -dd; removing the 'cd' to shorten 
the output. the output is at http://ethan.uk.to/static/tmp/linuxemu-dd

linux -dd -r /usr/ethan/linuxemu/mroot-fancy /bin/bash -i
ps

Original comment by tereniao...@gmail.com on 1 Apr 2014 at 2:40

[GoogleCodeExporter]

was changed format in devproc segment file, fixed in rdc4158e7c5e7. thanks! :)

Original comment by cinap_le...@felloff.net on 1 Apr 2014 at 5:29

• Changed state: Fixed