Andrew Lunn wrote:
I don't see how this can result in overlapping memory. newptr is a new block of memory, so it is not possible that it overlaps with ptr.
I agree. Infact it is 2.6.6 that is broken (sorry for the confusion). This version attempts to extend the block forwards or backwards in preference to allocating a completely new block. If the increase in size is less then a factor of two then the resulting copy will overlap.
dlmalloc.cxx in the anon CVS seems to be based on 2.6.6.
