On Tue, Oct 16, 2007 at 03:32:09AM -0400, Michael Lorenz wrote:
> Turns out it is jemalloc fallout - building a libc with  
> USE_JEMALLOC=no makes X work again.
> Now what side effects of the old malloc() is X relying on?

The fact that the area between 1GB and 3GB was not used for the heap.
The X11 server manually allocated memory with mmap() in that area
to get memory below <4GB.

	Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/