Userland (UX) Runtime

[Michael J. Emswiler]

Yes, the app hangs, so Ctrl+C does not work.  I assume I *must* be doing 
something wrong.  Either I am missing a configuration setting ... or maybe 
just trying to load the wrong module ...

So far with the minimal debugging I have been able to do, the app seems to 
hang after the 

  // switch to stack of kernel thread and bootstrap the kernel
  asm volatile
    ("	movl %%esp, %0		\n\t"	// save stack pointer in safe variable
     "	movl %%esi, %%esp	\n\t"	// switch stack
     "	call call_bootstrap	\n\t"	// bootstrap kernel thread
     :	"=m" (boot_stack),
        "=a" (dummy), "=c" (dummy), "=d" (dummy)
     :	"a"(kernel), "S" (kernel->init_stack()));

call in main-ia32-ux.cpp, line 56

I am about to start tracing through the call_bootstrap and 
kernel->init_stack() and see where it might be failing.

Also, I assume the "hello" app that is to be launched is the hello app I find 
in the /bin/x86_586/l4v2 tree?  Or is there a separate one in the fiasco tree 
itself?  Might I simply be attempting to load the wrong module...

FWIW, my UX run dir looks like:

memswiler at Wolverine:/usr/src/drops/bin/ux> ls -al
total 12
drwxr-xr-x  2 memswiler users 4096 2006-06-27 04:09 .
drwxr-xr-x 12 memswiler users 4096 2006-06-26 22:58 ..
lrwxrwxrwx  1 memswiler users   27 2006-06-26 19:11 dm_phys 
-> ../bin/x86_586/l4v2/dm_phys
-rwxr-xr-x  1 memswiler users   82 2006-06-26 19:09 dope.sh
lrwxrwxrwx  1 memswiler users   28 2006-06-26 23:07 fiasco 
-> ../bin/x86_586/fiasco/fiasco
lrwxrwxrwx  1 memswiler users   25 2006-06-27 04:09 hello 
-> ../bin/x86_586/l4v2/hello
lrwxrwxrwx  1 memswiler users   26 2006-06-26 23:07 irq0 
-> ../bin/x86_586/fiasco/irq0
lrwxrwxrwx  1 memswiler users   29 2006-06-26 19:11 l4dope-ux 
-> ../bin/x86_586/l4v2/l4dope-ux
lrwxrwxrwx  1 memswiler users   27 2006-06-26 23:07 Lines 
-> ../bin/x86_586/fiasco/Lines
lrwxrwxrwx  1 memswiler users   23 2006-06-26 19:11 log 
-> ../bin/x86_586/l4v2/log
lrwxrwxrwx  1 memswiler users   25 2006-06-26 19:11 names 
-> ../bin/x86_586/l4v2/names
lrwxrwxrwx  1 memswiler users   28 2006-06-27 04:00 pingpong 
-> ../bin/x86_586/l4v2/pingpong
lrwxrwxrwx  1 memswiler users   28 2006-06-26 18:54 roottask 
-> ../bin/x86_586/l4v2/roottask
lrwxrwxrwx  1 memswiler users   29 2006-06-26 19:05 sigma0-ux 
-> ../bin/x86_586/l4v2/sigma0-ux
lrwxrwxrwx  1 memswiler users   29 2006-06-26 23:07 Symbols 
-> ../bin/x86_586/fiasco/Symbols
lrwxrwxrwx  1 memswiler users   28 2006-06-26 23:07 ux_con 
-> ../bin/x86_586/fiasco/ux_con
lrwxrwxrwx  1 memswiler users   30 2006-06-26 19:17 vmlinuz26.ux 
-> ../../l4linux-2.6/vmlinuz26.ux
lrwxrwxrwx  1 memswiler users   28 2006-06-26 19:11 vscrtest 
-> ../bin/x86_586/l4v2/vscrtest

Trying some of the more advanced examples, i can see it even fire up ux_con 
module and load (and relocate?) many modules ... but ultimately, it just 
hangs.

Thanks,
MikeE

On Tuesday 27 June 2006 03:32, Christian Helmuth wrote:
> Hello,
>
> On Tue, Jun 27, 2006 at 12:07:53AM -0400, Michael J. Emswiler wrote:
> > Further I have to kill -9 it to get unload.
>
> Does that mean you could not enter the kernel debugger by pressing CTRL-C?
>
> Greets

-- 
Thanks,
MikeE