pdfTeX fatal: memory exhausted (xmalloc of 760000008 bytes).

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

When I run pdfTeX I get:

fatal: memory exhausted (xmalloc of 760000008 bytes).

That is even without having an input file.

 25546      1 pdftex   CALL  
mmap(0,0x100000,3,0x14001002,0xffffffff,0,0)
 25546      1 pdftex   RET   mmap 140187676966912/0x7f7ffcb00000
 25546      1 pdftex   CALL  
mmap(0,0x100000,3,0x14001002,0xffffffff,0,0)
 25546      1 pdftex   RET   mmap 140187675918336/0x7f7ffca00000
 25546      1 pdftex   CALL  
mmap(0,0x2d500000,3,0x14001002,0xffffffff,0,0)
 25546      1 pdftex   RET   mmap -1 errno 12 Cannot allocate memory

Any idea on why it wants to mmap too much memory?

I am not sure what changed. I was using it fine a couple weeks ago. No 
different TeX package installation since then.

As a workaround I did:

sysctl -w proc.$$.rlimit.datasize.soft=8589934592