On 24/01/15 10:10, Howard Chu wrote:
> We could drop memalign. malloc(desired space + 1 OS page), then
> adjust for alignment. On machines with a sane linear address
> space where we can tell alignment from the address, anyway.
Such an address space is already a requirement for LMDB, since mmaps
I may have used the wrong word. mmap() must align, but that's no
reason (size_t)pointer has to look sane. If it wants, the machine
can still have PDP-endian descending address representation with
a checkbit as every 4th bit, while running in a mode with big-
endian integers, all of which shows up in (size_t)pointer.
Anyway, the branch now tries to test for sane-looking addresses.