Something is seriously wrong with --disable-munmap (default on linux)

Jason Evans jasone at
Wed May 9 11:21:50 PDT 2012

On May 9, 2012, at 6:32 AM, Mike Hommey wrote:
> Something is seriously wrong with --disable-munmap. What I see in
> Firefox is that it seems free chunks are never reused, or seldomly: I
> end up with a process sucking gigabytes of mapped memory, while jemalloc
> claims it mapped 500M. On 32-bits system, that exhausts the address
> space.

I saw the same thing yesterday on a 64-bit system, though the application was at 729 GiB of virtual memory use and climbing…  I'm looking into this problem more today.


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