Re: [XenPPC] save/restore: suspending DomU

[Jimi Xenidis <jimix@xxxxxxxxxxxxxx>]

On Sep 19, 2006, at 6:07 PM, poff wrote:

> 1) As part of 'save', DomU is suspended, including some type of  
> 'device migration'.
> cf 'def save' in XendCheckpoint.py  Anyway, device migration does  
> not return. Wondering
> if anyone has run this type of code?
You are the pioneer here Dan, good luck.
> 2) How do you 'refresh' python? Modifying tools/python/xen/xend/*py  
> for debugging
> then rebuilding and installing tools has no effect - old version of  
> modules remains.
> Currently I have to reboot to pickup debug versions...
When modifying xen/tools source I simply
  # make install-tools
  # xend restart

I have no confidence in the build system so a:
  # make -C tools clean
may be a good idea every once in a while

BTW: you _can_ gdb xend.

  # ps -ef | grep xend

Use the Pid of the process whose parent is not init (PID:1)
  # gdb /bin/python <pid>

WARNING, you are actually debugging all of python, but you can still  
gdb the libxc areas.
You may want to uncomment the following in tools/libxc/Makefile:
  #CFLAGS   += -DVALGRIND -O0 -ggdb3


Also a good GDB trick is to use "rbreak" which can set breakpoint by  
regular expressions so:
  (gdb) rb ^xc_.*
will set a break point in all libxc calls.


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