Why Steam fails [VirtualAlloc]

Ivan Gyurdiev ivg2 at cornell.edu
Sat Dec 3 14:38:10 CST 2005

> I tries that with the exact same results...
> Attempted mmap_anon of size 200MB...fails...Steam fails, with ENOMEM.
Here's the exact mmap call...  it's the only one that fails, and it's 
the largest without MAP_NORESERVE.

mmap2(NULL, 209780736, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 
ENOMEM (Cannot allocate memory)

Running the same call from a test program suceeds - I can mmap() things 
that are an order of magnitude larger without problems (as a regular user).

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