Re: [Valgrind-users] Re: [uml-devel] Re: UML and valgrind

[Jeff D. <jd...@ad...>]

nj...@ca... said:
> What address was UML trying to load something at?  Is that adjustable?

It is now.  Get the load-low patch from 
	http://user-mode-linux.sourceforge.net/patches.html

It will make UML load where every normal process loads when CONFIG_MODE_SKAS
is on and CONFIG_MODE_TT is off.  This should get you past valgrind's address
space assumptions.

As a side-benefit, this will allow UML to have much greater physical memory
without needing to go to highmem.  If you take advantage of this, either enable 
CONFIG_STATIC_LINK or keep the physical memory size below about 750M.  The
reason is you don't want to push UML physical memory into the 0x40000000 area
occupied by shared libraries.  With CONFIG_STATIC_LINK, this problem goes away
and you can have physical memory up to about 2.75G.

Let me know if there are any problems.  It's not well tested - I ran it enough
to see it panic because it had no root filesystem.  My current work box doesn't
have skas on it yet, so I can't boot this one up totally.

				Jeff